53663 Catalog

103825-Attachment 103825-Attachment 103825-Attachment 047503 Batch5 unilog cesco-content

: Pdf 53663-Catalog 53663-Catalog 047503 Batch5 unilog

Open the PDF directly: View PDF .
Page Count: 164

Download
Open PDF In Browser	View PDF

acmetransformer.com

Acme Electric

Acme Electric
N85 W12545 Westbrook Crossing
Menomonee Falls, WI 53051
800.334.5214

Full Line Product Catalog

Full Line Product Catalog

Today, Actuant Electrical provides electrical tools, transformers, sockets and switches, wiring
devices and other power management products for the professional, retail/do-it-yourself (DIY),
harsh environment, marine, and diverse OEM end-market channels. Our focus is to create
innovative electrical products using consistent, high quality processes. We deliver these
products wherever our customers need them, anywhere in the world. Whether we power
life-saving medical machines or alternative energy sources or create electrical products for
marine on-board applications or industrial environments, the varied experience behind our
products translates into quality for our customers. actuant.com/electrical

ELECTRICAL
©2012 Actuant Corporation. All rights reserved.

ACM_CAT_005_0412

TA BL E OF CONT ENT S
Buck-Boost Transformers

SECTION 7

Description & Applications................................................................................................................88
Questions & Answers ...................................................................................................................91-93
Selection Charts, Single Phase ....................................................................................................94-96
Selection Charts, Three Phase.....................................................................................................97-99
Specifications & Dimensions ..........................................................................................................100
Wiring Diagrams .......................................................................................................................101-102

Panel-Tran® Zone Power Centers

SECTION 8

304 Stainless Steel Panel-Tran® ...............................................................................................104-105
General Description & Construction ............................................................................................... 104
Features ........................................................................................................................................... 104
Selection Charts .......................................................................................................................106-107
Circuit Breaker Data .................................................................................................................106-107
Wiring Diagrams .............................................................................................................................. 108

Air Conditioning, Refrigeration & Appliance Transformers

SECTION 9

Construction Features ..............................................................................................................110-111
Selection Steps ................................................................................................................................ 111
Selection Charts .............................................................................................................................. 112

Power Conditioning Products
W
NE

SECTION 10

True-Power ® Constant Voltage Regulators & Power Line Conditioners
Introduction & Features .......................................................................................................114
Specifications .......................................................................................................................115
Selection Charts, Portable & Hardwired .............................................................................115
Dimensional Drawings .........................................................................................................116

DC Power Supplies

SECTION 11

DIN-Rail Mounted Power Supplies ..........................................................................................118-120
DM Series Accessories ...................................................................................................................121
Unregulated Power Supplies Blackline Series ........................................................................122-123
Regulated Power Supplies SPS Blueline Series .....................................................................124-125
Regulated Power Supplies SPW Series ..................................................................................126-127
Frequently Asked Questions ...........................................................................................................128

Powerwise C3 Transformer
W
NE

SECTION 12

CSL-3 Super Efficient Transformers ....................................................................................................... 130
General Description and Features...................................................................................................130-131
Selection Charts ...................................................................................................................................... 132

General Information

GENERAL

Design Figures ................................................................................................................................134
Wiring Diagrams .......................................................................................................................135-144
Transformer Accessories .........................................................................................................145-146
Acme Specifications Guide .....................................................................................................147-150
Industry Standards Data .................................................................................................................151
Alphanumerical Catalog Number Listing ................................................................................152-156
Product Warranty & Shielding Information .............................................................Inside Back Cover

Table of Contents_0412.indd 2

6/13/12 12:32 PM

ACME ELECTRIC
Acme Electric, Power
Distribution Products’ Catalog
contains many new products
for your power distribution and
control applications.
To make your selection
process easier, this catalog
is divided into ten product
sections. Selection charts in
each section are also
color coded:
Section color + white bars =
1Ø transformers
Section color + gray bar =
3Ø transformers
To find a product in the catalog
when only the catalog number
is known, a complete alphanumerical catalog number
index with page number listing
is provided, beginning on
page 152.
Wiring diagrams, design
figures and accessories
for standard distribution
transformers (Sections I - IV)
begin on page 134.
Some of the most frequently
asked questions about
transformers and their answers
can be found in Section I
begining on page 6. If you have
additional questions before or
after purchase of any products
supplied by Power Distribution
Products, feel free to contact
our Technical Services
Department at 1-800-334-5214.
Thank you for selecting Acme
Power Distribution Products.

Dimensions in the tables
are approximated and
subject to change. Certified
drawings for construction
purposes will be provided
upon request.

Intro Page Warranty_0412.indd 1

Leadership in Quality Designed Products
And Quality Customer Satisfaction
For over eighty-eight years, Acme Electric has been
manufacturing Power Conditioning Equipment for use
in industrial, commercial and OEM applications. Built on
a reputation for superior service, quality and technical
expertise in the transformer market, Acme
is regarded as a true industry leader.
Acme Electric is a full line manufacturer of
low voltage (600V and below) dry type distribution transformers using both copper
and aluminum conductor, offering an array
of products between 0.05 -1000 kVA.
Headquartered in Milwaukee, Wisconsin,
Acme Electric has over 170,000 square ft. of manufacturing in two plants; a 130,000 square ft. facility in Lumberton,
NC and a 45,000 square ft. facility in Mexico.
Acme’s product offering covers the full spectrum of applications, from commercial general power distribution and
high harmonic conditions to specific industrial motor drive/
factory automation systems, to low voltage landscape
lighting applications.
As an active member of the Rockwell Automation
Encompass Program, National Electrical Manufacturers
Association (NEMA) and IEEE, Acme Electric markets its
approximately 1,500 products through a selective network
of full line independent, regional, national and international
electrical distributors that are recognized in the industry as
being best in class.
Manufacturing Capabilities
To meet the demands of the customer
base, while maintaining a competitive edge,
strategically, Acme has focused on being
a high quality, responsive, low cost manufacturer. All Acme products are designed,
constructed and rated to meet
or exceed the standards established by UL,
CSA, CE, NEMA, ANSI and IEEE.
In 1997, Acme became certified in the
Demand Flow Technology (DFT), in doing so,
the cycle time for manufacturing a transformer has been reduced to 8-10 days. This flexible process
allows Acme the ability to provide standard and custom
product, with the responsiveness required from a manufacturer in today’s just in time environment.
The Lumberton, North Carolina facility serves as Acme’s
primary manufacturing and design location. The Lumberton plant manufactures both air-cooled and encapsulated
transformers covering the full range of Acme’s offering in
standard and custom designs. This facility also has 30,000
sq. ft of warehouse area that serves as the company’s
central distribution center.
In 1999, Acme began its manufacturing expansion with
the opening of a facility in Monterrey, Mexico. This plant
focuses on many of the smaller kVA and industrial control
transformers that are sold throughout the entire Acme
Electric customer base. In 2003, Acme further expanded
its manufacturing resources with a strategic partnership in China.
In August 2004, we acquired Amveco Magnetics, Inc., Houston, TX. Amveco is a world leader
in toroidal power transformers. Amveco designs
and manufacturers toroidal power transformers,
standard and custom inductors, current

transformers and auto-transformers. Most of the products
manufactured by Amveco are custom designed, with
the use of proprietary CAD program and an experienced
Engineering Department. Amveco's knowledgable
customer service representatives provide promt, reliable and quality customer
service to all customers. Amveco is an
ISO-9001 registered company and the
transformers use only flame-retardant
material (UL 94V2). These transformers
carry a lifetime warranty and are
recognized to several UL standard
CSA certified, and TUV for medical
applications. Amveco expanded our global presence by
including a joint venture in India.
Custom/OEM Product Capabilities
In addition to the full line of standard product offerings,
Acme is positioned to supply special products to meet
specific customer requirements. With an OEM oriented
end user customer base, an experienced Design Engineering Department utilizes software dedicated to core
and coil electrical design, combined with new state of the
art parametric technology mechanical design software.
With these design tools, Acme provides customers with
rapid turnaround of designs and prototypes of custom
products. These custom designs range from special kVA,
voltage combinations and performance characteristics to
special mounting configurations/ footprints, enclosures
and terminations.
Commitment to Quality
Acme Electric has earned the reputation
for the manufacture of high quality products backed by superior customer service.
To demonstrate this commitment to quality Acme Electric is an ISO 9000 certified
manufacturer and has recently adopted
a company wide Six Sigma philosophy of
continuous improvement.
As an ISO 9000 Certified Manufacturer,
Acme Electric has adopted a specific,
proven quality management system. The Lumberton, NC
facility has been ISO Certified since 1995 and in May of
2003 upgraded to the new ISO 9001- 2000 Standard.
This certification expands beyond manufacturing to also
include customer service. The Mexico and China facilities operate under the same practices of ISO 9001-2000.
In 2002, Acme Electric made a commitment to the Six
Sigma philosophy. The result is a core team of certified
black belt and green belt project champions, who work in
conjunction with the Acme Management Team and Quality Council to be the driving force behind Acme’s doctrine
and goal of continuous improvement.
This philosophy involves all aspects of Acme’s business
(both manufacturing and in the office) and is having a
direct impact on Acme’s pledge to meet and exceed the
expectations of our customers.
With this commitment to quality, Acme has
positioned itself to be the premiere supplier
of quality products and service to meet the
demanding needs of today’s marketplace,
while adapting to the dynamic changes of
tomorrow.

6/13/12 1:00 PM

SE CT IO N

1

DRY-TYPE
DISTRIBUTION
TRANSFORMERS
600 Volt Class and Below
Single and Three Phase
Transformer Questions & Answers........... 6-10
Enclosure Definitions ....................................10
Steps in Transformer Selection .............. 11-12
Construction Features ............................ 13-16
316 Stainless Steel Transformers ........ 17 & 25
Selection Charts 1Ø & 3Ø ...................... 17-29
Economical Auto Arrangements ..................30
Auto Zig-Zag Transformers ..........................31
Non-Standard Three Phase Applications ....32

NOTE: Design figures, wiring
diagrams and accessories begin on page 154.

Section 1_0412.indd 5

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

Transformer Questions & Answers
1. What is a transformer and how does it work?
A transformer is an electrical apparatus designed to convert
alternating current from one voltage to another. It can be
designed to “step up” or “step down” voltages and works
on the magnetic induction principle. A transformer has no
moving parts and is a completely static solid state device,
which insures, under normal operating conditions, a long
and trouble-free life. It consists, in its simplest form, of
two or more coils of insulated wire wound on a laminated
steel core. When voltage is introduced to one coil, called
the primary, it magnetizes the iron core. A voltage is then
induced in the other coil, called the secondary or output coil.
The change of voltage (or voltage ratio) between the primary
and secondary depends on the turns ratio of the two coils.

6. Can transformers be used in parallel? Single phase
transformers can be used in parallel only when their
impedances and voltages are equal. If unequal voltages
are used, a circulating current exists in the closed network
between the two transformers, which will cause excess
heating and result in a shorter life of the transformer. In
addition, impedance values of each transformer must be
within 7.5% of each other. For example: Transformer A has
an impedance of 4%, transformer B which is to be parallel
to A must have an impedance between the limits of 3.7%
and 4.3%. When paralleling three phase transformers, the
same precautions must be observed as listed above, plus
the angular displacement and phasing between the two
transformers must be identical.

2. What are taps and when are they used? Taps are
provided on some transformers on the high voltage winding
to correct for high or low voltage conditions, and still deliver
full rated output voltages at the secondary terminals.
Standard tap arrangements are at two-and-one-half and
five percent of the rated primary voltage for both high and
low voltage conditions. For example, if the transformer has
a 480 volt primary and the available line voltage is running
at 504 volts, the primary should be connected to the 5%
tap above normal in order that the secondary voltage be
maintained at the proper rating. The standard ASA and
NEMA designation for taps are “ANFC” (above normal full
capacity) and “BNFC” (below normal full capacity).

7. Can Acme Transformers be reverse connected?
ACME dry-type distribution transformers can be reverse
connected without a loss of kVA rating, but there are
certain limitations. Transformers rated 1 kVA and larger
single phase, 3 kVA and larger three phase can be reverse
connected without any adverse effects or loss in kVA
capacity. The reason for this limitation in kVA size is, the
turns ratio is the same as the voltage ratio. Example: A
transformer with a 480 volt input, 240 volt output— can
have the output connected to a 240 volt source and thereby
become the primary or input to the transformer, then the
original 480 volt primary winding will become the output
or 480 volt secondary. On transformers rated below 1 kVA
single phase, there is a turns ratio compensation on the
low voltage winding. This means the low voltage winding
has a greater voltage than the nameplate voltage indicates
at no load. For example, a small single phase transformer
having a nameplate voltage of 480 volts primary and 240
volts secondary, would actually have a no load voltage
of approximately 250 volts, and a full load voltage of 240
volts. If the 240 volt winding were connected to a 240 volt
source, then the output voltage would consequently be
approximately 460 volts at no load and approximately
442 volts at full load. As the kVA becomes smaller, the
compensation is greater— resulting in lower output voltages.
When one attempts to use these transformers in reverse, the
transformer will not be harmed; however, the output voltage
will be lower than is indicated by the nameplate.

3. What is the difference between “Insulating,”
“Isolating,” and “Shielded Winding” transformers?
Insulating and isolating transformers are identical. These
terms are used to describe the isolation of the primary
and secondary windings, or insulation between the two.
A shielded transformer is designed with a metallic shield
between the primary and secondary windings to attenuate
transient noise. This is especially important in critical
applications such as computers, process controllers and
many other microprocessor controlled devices. All two,
three and four winding transformers are of the insulating or
isolating types. Only autotransformers, whose primary and
secondary are connected to each other electrically, are not
of the insulating or isolating variety.
4. Can transformers be operated at voltages other than
nameplate voltages? In some cases, transformers can be
operated at voltages below the nameplate rated voltage. In
NO case should a transformer be operated at a voltage in
excess of its nameplate rating, unless taps are provided for
this purpose. When operating below the rated voltage, the
kVA capacity is reduced correspondingly. For example, if
a 480 volt primary transformer with a 240 volt secondary is
operated at 240 volts, the secondary voltage is reduced to
120 volts. If the transformer was originally rated 10 kVA, the
reduced rating would be 5 kVA, or in direct proportion to the
applied voltage.
5. Can 60 Hz transformers be operated at 50 Hz?
ACME transformers rated below 1 kVA can be used on 50
Hz service. Transformers 1 kVA and larger, rated at 60 Hz,
should not be used on 50 Hz service, due to the higher
losses and resultant heat rise. Special designs are required
for this service. However, any 50 Hz transformer will operate
on a 60 Hz service.
6

Section 1_0412.indd 6

8. Can a Single Phase Transformer be used on a
Three Phase source? Yes. Any single phase transformer
can be used on a three phase source by connecting the
primary leads to any two wires of a three phase system,
regardless of whether the source is three phase 3-wire or
three phase 4-wire. The transformer output will be single
phase.
9. Can Transformers develop Three Phase power
from a Single Phase source? No. Phase converters or
phase shifting devices such as reactors and capacitors are
required to convert single phase power to three phase.
10. How do you select transformers?
(1) Determine primary voltage and frequency.
(2) Determine secondary voltage required.
(3) Determine the capacity required in volt-amperes.

This is done by multiplying the load current (amperes) by
the load voltage (volts) for single phase. For example: if the

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

load is 40 amperes, such as a motor, and the secondary
voltage is 240 volts, then 240 x 40 equals 9600 VA. A 10
kVA (10,000volt-amperes) transformer is required. ALWAYS
SELECT THE TRANSFORMER LARGER THAN THE ACTUAL
LOAD. This is done for safety purposes and allows for
expansion, in case more load is added at a later date. For 3
phase kVA, multiply rated volts x load amps x 1.73 (square
root of 3) then divide by 1000.
(4) Determine whether taps are required. Taps are
usually specified on larger transformers.
(5) Use the selection charts in Section I.
11. What terminations are provided? Primary and
Secondary Terminations are provided on ACME Dry-Type
Transformers as follows:

No lugs— lead type connection on
0-25 kVA single phase
0-15 kVA three phase
Bus-bar terminations
(drilled to NEMA standards)
37.5 -250 kVA single phase
25-500 kVA three phase

insulation class 130°C. Compound filled transformers use
insulation class 180°C. Larger ventilated transformers are
designed to use 220°C insulation. All of these insulation
systems will normally have the same number of years
operating life. A well designed transformer, observing these
temperature limits, will have a life expectancy of 20-25
years.
17. Why should Dry-Type Transformers never be overloaded? Overloading of a transformer results in excessive
temperature. This excessive temperature causes
overheating which will result in rapid deterioration of the
insulation and cause complete failure of the transformer coils.
18. Are temperature rise and actual surface
temperature related? No. This can be compared with an
ordinary light bulb. The filament temperature of a light bulb
can exceed 2000 degrees, yet the surface temperature of
the bulb is low enough to permit touching with bare hands.
19. What is meant by “impedance” in transformers?
Impedance is the current limiting characteristic of a
transformer and is expressed in percentage.

Total Winding Temperature °C
220
30

12. Can 60 Hz transformers be used at higher frequencies?
ACME transformers can be used at frequencies above 60 Hz
up through 400 Hz with no limitations provided nameplate
voltages are not exceeded. However, 60 Hz transformers will
have less voltage regulation at 400 Hz than 60 Hz.
13. What is meant by regulation in a transformer?
Voltage regulation in transformers is the difference between
the no load voltage and the full load voltage. This is usually
expressed in terms of percentage. For example: A transformer
delivers 100 volts at no load and the voltage drops to 95
volts at full load, the regulation would be 5%. ACME drytype distribution transformers generally have regulation
from 2% to 4%, depending on the size and the application
for which they are used.
14. What is temperature rise in a transformer?
Temperature rise in a transformer is the temperature of
the windings and insulation above the existing ambient or
surrounding temperature.
15. What is “Class” in insulation? Insulation class
was the original method used to distinguish insulating
materials operating at different temperature levels. Letters
were used for different designations. Letter classifications
have been replaced by insulation system temperatures
in degrees Celsius. The system temperature is the
maximum temperature at the hottest spot in the winding
(coil). Graphical representations of six insulation systems
recognized by Underwriters’ Laboratories, Inc. are shown in
Figure A. These systems are used by Acme for a large part
of the product line.
16. Is one insulation system better than another?
Not necessarily. It depends on the application and the
cost benefit to be realized. Higher temperature class
insulation systems cost more and larger transformers are more
expensive to build. Therefore, the more expensive insulation
systems are more likely to be found in the larger kVA units.

Referring to Figure A, small fractional kVA transformers use

180
25

COIL HOT SPOT
DIFFERENTIAL

105
10

150
115

80

AV. WINDING
RISE

55

AMBIENT

40

40
40
40
AGENCY: UL/ANSI 1561 MARCH 1987
Figure A

20. Why is impedance important? It is used for determining
the interrupting capacity of a circuit breaker or fuse employed
to protect the primary of a transformer. Example: Determine
a minimum circuit breaker trip rating and interrupting capacity
for a 10 kVA single phase transformer with 4% impedance,
to be operated from a 480 volt 60 Hz source.

Calculate as follows:
Normal Full Load Current =
Nameplate Volt Amps
10,000 VA
=
=
Line Volts
480 V
20.8 Amperes
Maximum Short Circuit Amps =
Full Load Amps
20.8 Amps
=
=
4%
4%
520 Amps
The breaker or fuse would have a minimum interrupting rating
of 520 amps at 480 volts.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 7

130
10

7

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

Example: Determine the interrupting capacity, in amperes, of
a circuit breaker or fuse required for a 75 kVA, three phase
transformer, with a primary of 480 volts delta and secondary
of 208Y/120 volts. The transformer impedance (Z) = 5%. If the
secondary is short circuited (faulted), the following capacities
are required:
Normal Full Load Current =
Volt Amps
√ 3 x Line Volts
90 Amps

75,000 VA
√ 3 x 480 V

Maximum Short Circuit Line Current =
Full Load Amps
=
90 Amps
5%
5%
1,800 Amps
The breaker or fuse would have a minimum interrupting rating of
1,800 amps at 480 volts.
NOTE: The secondary voltage is not used in the calculation.
The reason is the primary circuit of the transformer is the only
winding being interrupted.
21. Can Single Phase Transformers be used for Three Phase
applications? Yes. Three phase transformers are sometimes
not readily available whereas single phase transformers can
generally be found in stock. Three single phase transformers can
be used in delta connected primary and wye or delta connected
secondary. They should never be connected wye primary to wye
secondary, since this will result in unstable secondary voltage.
The equivalent three phase capacity when properly connected
of three single phase transformers is three times the nameplate
rating of each single phase transformer. For example: Three
10 kVA single phase transformers will accommodate a 30 kVA
three phase load.
22. Does ACME provide “Zig-Zag” Grounding Transformers?
Yes. Please refer to Page 31 for a special diagram which
can be used to connect standard single phase off-the-shelf
transformers in a three phase zig-zag manner. This system can
be used for either grounding or developing a fourth wire from
a three phase neutral. An example would be to change a 480
V — three phase — three wire system to a 480Y/277 V — three
phase — four wire system.
23. What color are ACME Dry-Type Transformers?
ASA 61 (NEMA) light gray is used on all enclosed transformers
from .050 to 1000 kVA.
24. How do you select a transformer to operate in an ambient
higher than 40° centigrade?
When the ambient exceeds 40°C use the following chart for
de-rating standard transformers.
Maximum Ambient
Temperature

Maximum Percentage
of Loading

40°C (104°F)
50°C (122°F)
60°C (140°F)

100%
92%
84%

Instead of ordering custom built transformers to operate in
ambients higher than 40°C, it is more economical to use a
standard transformer of a larger kVA rating.
8

Section 1_0412.indd 8

25. Can transformers listed in this catalog be reconnected
as autotransformers to increase their kVA rating? Several
standard single phase transformers listed in this catalog can
be connected as autotransformers. The kVA capacity will
be greatly increased when used as an autotransformer,
in comparison to the nameplate kVA as an insulating
transformer. Examples of autotransformer applications are
changing 600 volts to 480 volts in either single phase or three
phase; changing 480 volts to 240 volts single or three phase
or vice versa; or the developing of a fourth wire (neutral) from
a 480 volt three phase three wire system for obtaining 277
volts single phase. This voltage is normally used for operating
fluorescent lamps or similar devices requiring 277 volts. For
further details showing kVA and voltage combinations for
various autotransformer connections refer to Page 30 and 31
in this catalog.
26. Are ACME Transformers shown in this catalog U.L.
Listed? All of the transformers, with few exceptions, are
listed by Underwriters’ Laboratories and have met their
rigorous requirements. We are also prepared to have
transformers, which are not presently listed, submitted for
listing to Underwriters’ upon the customer’s request. Please
contact the factory for details.
27. Is CSA certification available for transformers shown in
this catalog? Most ACME transformers shown in this catalog
are certified by Canadian Standards Association. They have
been designed and tested in accordance with the latest
specifications. Please contact the factory if further details
are required.
28. What is BIL and how does it apply to transformers listed
in this catalog?
BIL is an abbreviation for Basic Impulse Level. Impulse tests
are dielectric tests that consist of the application of a high
frequency steep wave front voltage between windings, and
between windings and ground. The Basic Impulse Level of
a transformer is a method of expressing the voltage surge
(lightning, switching surges, etc.) that a transformer will
tolerate without breakdown. All transformers manufactured
in this catalog, 600 volts and below, will withstand the NEMA
standard BIL rating, which is 10 KV. This assures the user
that he will not experience breakdowns when his system is
properly protected with lightning arrestors or similar surge
protection devices.
29. What is polarity, when associated with a transformer?
Polarity is the instantaneous voltage obtained from the primary
winding in relation to the secondary winding. Transformers 600
volts and below are normally connected in additive polarity —
that is, when tested the terminals of the high voltage and low
voltage windings on the left hand side are connected together,
refer to diagram below. This leaves one high voltage and
H1

H2
240 VOLT
INPUT

ADDITIVE
POLARITY

VOLT
METER

360
VOLT
READING

120 VOLT
OUTPUT
x2

x1

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

one low voltage terminal unconnected. When the transformer
is excited, the resultant voltage appearing across a
voltmeter will be the sum of the high and low voltage
windings. This is useful when connecting single phase
transformers in parallel for three phase operations. Polarity is a
term used only with single phase transformers.
30. What is exciting current? Exciting current, when
used in connection with transformers, is the current or amperes
required for excitation. The exciting current on most lighting
and power transformers varies from approximately 10% on
small sizes of about 1 kVA and smaller to approximately .5%
to 4% on larger sizes of 750 kVA. The exciting current is made
up of two components, one of which is a real component and
is in the form of losses or referred to as no load watts; the other
is in the form of reactive power and is referred to as kVAR.
31. Will a transformer change Three Phase to single phase?
A transformer will not act as a phase changing device when
attempting to change three phase to single phase. There
is no way that a transformer will take three phase in and
deliver single phase out while at the same time presenting
a balanced load to the three phase supply system. There
are, however, circuits available to change three phase to two
phase or vice versa using standard dual wound transformers.
Please contact the factory for two phase applications.
32. Can air cooled transformers be applied to motor loads?
This is an excellent application for air cooled transformers.
Even though the inrush or starting current is five to seven
times normal running current, the resultant lower voltage
caused by this momentary overloading is actually beneficial
in that a cushioning effect on motor starting is the result. The
tables on Pages 11 and 12 illustrate some typical transformer
requirements for use with motor applications.
33. How is an Acme Drive Isolation Transformer (DIT)
different than a General Purpose Tranformer?
DITs, as the name implies, are designed to be used with
motor drives (AC and DC) and to provide isolation from the
service line. They are specifically designed to withstand the
“short circuit like” duty imposed by the firing of the thyristors.
Harmonics generated by drives create added loads on the
transformer. Therefore, it is important that a transformer
of equal or greater kVA to that recommended by the drive
manufacturer be installed for a particular motor application.

voltage is low the torque and the horsepower of the motor
will drop proportionately to the square of the voltage. For
example: If the voltage were to drop to 70% of nominal, then
motor horsepower and torque would drop to 70 % squared
or 49% of the motor nameplate rating.
If the motor is used for starting a high torque load, the motor
may stay at approximately 50% of normal running speed as
illustrated by the graph below:
SPEED (PERCENT OF
SYNCHROUS SPEED)

SECTION

100
80
60
STALL
ZONE

40
20
50

100

150

200

250

TORQUE (PERCENT OF FULL LOAD TORQUE)
SPEED vs TORQUE FOR A TYPICAL THREE PHASE
INDUCTION TYPE SQUIRREL CAGE MOTOR

The underlying problem is low voltage at the motor terminals.
If the ampere rating of the motor and transformer overcurrent
device falls within the motor’s 50% RPM draw requirements,
a problem is likely to develop. The overcurrent device may not
open under intermediate motor ampere loading conditions.
Overheating of the motor and/or transformer would occur,
possibly causing failure of either component.
This condition is more pronounced when one transformer is
used to power one motor and the running amperes of the
motor is in the vicinity of the full load ampere rating of the
transformer. The following precautions should be followed:
(1) When one transformer is used to operate one motor, the
running amperes of the motor should not exceed 65% of
the transformer’s full load ampere rating.
(2) If several motors are being operated from one transformer,
avoid having all motors start at the same time. If this is
impractical, then size the transformer so that the total
running current does not exceed 65% of the transformer’s
full load ampere rating.

NOTE: If motor is to be started more than once per hour add
20% additional kVA.

35. Why are Small Distribution Transformers not used for
Industrial Control Applications?
Industrial control equipment demands a momentary overload
capacity of three to eight times normal capacity. This is most
prevalent in solenoid or magnetic contactor applications where
inrush currents can be three to eight times as high as normal
sealed or holding currents but still maintain normal voltage at
this momentary overloaded condition. Distribution transformers
are designed for good regulation up to 100 percent loading,
but their output voltage will drop rapidly on momentary
overloads of this type making them unsuitable for high inrush
applications.

Care should be exercised in sizing a transformer for an
induction type squirrel cage motor as when it is started,
the lock rotor amperage is approximately 5 to 7 times the
running load amperage. This severe starting overload will
result in a drop of the transformer output voltage. When the

Industrial control transformers are designed especially
for maintaining a high degree of regulation even at eight
times normal load. This results in a larger and generally more
expensive transformer. For a complete listing of ACME
industrial control transformers, refer to Section V.

34. How are transformers sized to operate Three Phase
induction type squirrel cage motors? The minimum
transformer kVA rating required to operate a motor is
calculated as follows:

Minimum Transformer kVA =
Running Load Amperes x 1.73
x Motor Operating Voltage
1000

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 9

9

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

36. Can 4-Winding Single Phase Transformer be autoconnected? Yes. There are occasions where 480 volts single
phase can be stepped down to 240 volts single phase by
autoconnecting a standard 4-winding isolating transformer
as shown in Figure 1. If connected in this manner, the
nameplate kVA is doubled. For example: A 10 kVA load can
be applied to a 5 kVA 4-winding transformer if connected per
Figure 1.
480V
H1

H3

H2

H4

X1

240V
X3
X2

38. What is meant by “Balanced Loading” on Single Phase
Transformer applications? Since most single phase
transformers have a secondary voltage of 120/240, they will
be operated as a three wire system. Care must be taken
in properly distributing the load as the transformer secondary
consists of 2 separate 120 volt windings. Each 120 volt
winding is rated at one-half the nameplate kVA rating. For
example: A 10 kVA transformer, 120/240 volt secondary is to
service an 8 kVA load at 240 volts and two 1 kVA loads at
120 volts each.

X4
B
A

10 KVA
(NEUTRAL)

Figure 1

8 KVA

C

37. What about balanced loading on Three Phases?
Each phase of a three phase transformer must be considered
as a single phase transformer when determining loading. For
example: A 45 kVA three phase transformer with a 208Y/120
volt secondary is to service 4 loads at 120 volts single phase
each. These loads are 10 kVA, 5 kVA, 8 kVA,and 4 kVA.

5 KVA

CORRECT WAY:

B
A

10 KVA

5 KVA

C

45 kVA = 15 kVA per phase
3 phase

4 KVA

INCORRECT WAY:

If incorrect method is used, phase B will have an 18 kVA
load which is 3 kVA above its normal capacity of 15 kVA and
failure will result even though we only have a total load of 27
kVA on a 45 kVA transformer.

Enclosure Definitions
Type 1 Enclosures — are intended for indoor use,
primarily to provide a degree of protection against
contact with the enclosed equipment.
Type 2 Enclosures — are intended for indoor use,
primarily to provide a degree of protection against
limited amounts of falling water and dirt.
Type 3R Enclosures — are intended for outdoor use,
primarily to provide a degree of protection against falling rain, sleet and external ice formation.

If the incorrect method is used, winding A will be loaded
at 6 kVA, and winding B will be loaded at 4 kVA. These
do total 10 kVA but, since each winding is only rated at
5 kVA (1/2 of nameplate rating), we have an overloaded
transformer and a certain failure.

120V

120V

1 KVA

Ventilated — means constructed to provide for
circulation of external air through the enclosure to
remove excess heat, fumes or vapors.
Non-Ventilated — means constructed to provide no
intentional circulation of external air through the
enclosure.
Indoor Locations — are those areas protected from
exposure to the weather.
Outdoor Locations — are those areas exposed to
the weather.
Hazardous (Classified) Locations — are those
areas, which may contain hazardous (classified)
materials in sufficient quantity to create an explosion.
See Article 500 of The National Electrical Code.

240V

8 KVA

240V

8 KVA

1 KVA

CORRECT WAY:

A

120V

1 KVA

1 KVA

Definitions Pertaining to Enclosures

Section 1_0412.indd 10

8 KVA

(NEUTRAL)

NOTE: that maximum loading on any phase does not exceed
10 kVA. Each phase has a 15 kVA capacity.

10

4 KVA

B

120V

INCORRECT WAY:

39. What are typical applications for transfomers?
ACME transformers should be specified to:

(1) Distribute power at high voltage.
(2) Eliminate double wiring.
(3) Operate 120 volt equipment from power circuits.
(4) Insulate circuits/establish separately derived circuits.
(5) Provide 3-wire secondary circuits.
(6) Buck and Boost (See Section VII).
(7) Provide electrostatic shielding for transient noise protection.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

Steps for Selecting the Proper Transformer
SINGLE PHASE LOADS

TABLE 1

1. Determine electrical load
A. Voltage required by load.
B. Amperes or kVA capacity required by load.
C. Frequency in Hz (cycles per second).
D. Verify load is designed to operate on a single phase supply.
All of the above information is standard data normally obtained from equipment
nameplates or instruction manuals.

Full Load Current in Amperes–
Single Phase Circuits
kVA 120V 208 V 240V 277 V 380V 440V 480V 600V
.050 0.4 0.2 0.2 0.2 0.1 0.1 0.1 0.1
.100 0.8

0.5

0.4

0.3

0.2

0.2

0.2

0.2

.150 1.2

0.7

0.6

0.5

0.4

0.3

0.3

0.3

.250 2.0

1.2

1.0

0.9

0.6

0.5

0.5

0.4

.500 4.2

2.4

2.1

1.8

1.3

1.1

1.0

0.8

2. Determine supply voltage
A. Voltage of supply (source).
B. Frequency in Hz (cycles per second).
The frequency of the line supply and electrical load must be the same. Select
single phase transformer designed to operate at this frequency, having a primary
(input) equal to the supply voltage and a secondary (output) equal to the voltage required by the load.

.750 6.3

3.6

3.1

2.7

2.0

1.7

1.6

1.3

3. If the load nameplate expresses a rating in kVA, a transformer can be
directly selected from the charts. Choose from a group of transformers with
primary and secondary voltages matching those you have just determined.
A. Select a transformer with a standard kVA capacity equal to or greater than
that needed to operate the load.
B. Primary taps are available on most models to compensate for line voltage
variations. (Refer to question #2 in the Transformer Questions and Answers
Section on page 6.)
C. When load ratings are given only in amperes, tables 1 and 2 or the following
formulas may be used to determine proper kVA size for the required transformer.
(1) To determine kVA when volts and amperes are known:
kVA = Volts x Amps
1000
(2) To determine Amperes when kVA and volts are known:
kVA x 1000
Amps =
Volts

1

8.3

4.8

4.2

3.6

2.6

2.3

2.1

1.7

1.5

12.5

7.2

6.2

5.4

3.9

3.4

3.1

2.5

2

16.7

9.6

8.3

7.2

5.2

4.5

4.2

3.3

3

25

14.4 12.5 10.8

7.9

6.8

6.2

5.0

5

41

24.0 20.8 18.0 13.1 11.3 10.4 8.3

7.5

62

36

31

27

19.7

10

83

48

41

36

26

15

125

72

62

54

39

34

31

25

208

120 104

90

65

57

52

41

37.5 312

180 156

135

98

85

78

62

50

240 208

180

131

114 104

83

416

17

15.6 12.5

22.7 20.8 16.7

75

625

360 312

270

197

170 156 125

100

833

480 416

361

263

227 208 166

167 1391 802 695

602

439

379 347 278

250 2083 1201 1041 902

657

568 520 416

TABLE 2
Full Load Amperes
Single Phase A.C. Motors ①
115 V

208 V

230 V

MIN.
TRANSFORMER
KVA

1 6

/

4.4

2.4

2.2

.53

1 4

.70

HORSEPOWER

/

5.8

3.2

2.9

Single Phase Example

1 3

/

7.2

4.0

3.6

.87

Question: Select a transformer to meet the following conditions. Load is single
phase lighting using incandescent lamps. Each fixture requires 1.3 amps @ 120
volts, 1 phase, 60 Hz, power factor of unity. The installation requires 52-100 watt
fixtures. The desired circuit distributing power to the light fixtures is 120/240 volt,
three wire, single phase. The supply voltage is 460 volt, 3 phase.

1 2

/

9.8

5.4

4.9

1.18

3 4

/

13.8

7.6

6.9

1.66

1

16

8.8

8

1.92

1.5

20

11.0

10

2.40

2

24

13.2

12

2.88

3

34

18.7

17

4.10

5

56

30.8

28

6.72

7.5

80

44

40

9.6

100

55

50

12.0

Answer: Compute the kVA required.
1.3 amps x 120 volts
= .156 kVA
1000
For each lighting fixture

25

10

① When motor service factor is greater than 1,

Always use amps x volts to compute VA, never use lamp wattage. .156 kVA/
Fixture x 52 Fixture = 8.11 kVA. The two sizes (kVA) nearest 8.11 kVA are 7.5 kVA
and 10 kVA. Use the 10 kVA. This will not overload the transformer and allows some
capacity, 1.89 kVA, for future loads. Since the supply is 460 V (not 480 V) use
the 456 V tap. This will produce approximately 120 volts on output. If the tap is not
used, the output will be 115 V compared to the desired 120 V. Note the transformer selected is single phase but the supply is 480 V, 3 phase. Single phase is
obtained by using any 2 wires of the 3 phase supply.

increase full load amps proportionally.
Example: If service factor is 1.15, increase
above amp values by 15%.

1 Phase kVA = Volts x Amps
1000
NOTE: If motors are started more than once per
hour, increase minimum transformer kVA by 20%.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 11

11

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

THREE PHASE LOADS

TABLE 3

1. Determine electrical load
A. Voltage required by load.
B. Amperes or kVA required by load.
C. Frequency in Hz (cycles per second).
D. Verify load is designed to operate on three phase.
All the above information is standard data normally obtained from equipment
nameplates or instruction manuals.

Full Load Current in Amperes–
Three Phase Circuits

2. Determine supply voltage
A. Voltage of supply (source).
B. Frequency in Hz (cycles per second).
The frequency of the line supply and electrical load must be the same. A three
phase transformer is selected which is designed to operate at this frequency
having a primary (input) equal to the supply voltage and a secondary (output)
equal to the voltage required by the load.
3. If the load nameplate expresses a rating in kVA, a transformer can be
directly selected from the charts. Choose from the group of transformers
with primary and secondary voltages matching that which you have
just determined.
A. Select a transformer with a standard kVA capacity equal to or greater than
that needed to operate the load.
B. Primary taps are available on most models to compensate for line voltage
variations. (Refer to question #2 in the Transformer Questions and Answers
Section on page 6.)
C. When load ratings are given only in amperes, tables 3 and 4 or the following
formulas may be used to determine proper kVA size for the required transformer.
(1) To determine three phase kVA when volts and amperes are known:
Three Phase kVA =
Volts x Amps x 1.73
1000
(2) To determine Amperes when kVA and volts are known:
3 Phase kVA x 1000
Amps =
Volts x 1.73

Three Phase Example
Question: Select a transformer to fulfill the following conditions. Load is a three phase
induction motor, 25 horsepower @ 240 volts, 60 Hz and a heater load of 4 kilowatts @
240 volts single phase. The supply voltage is 480Y/277, three phase, 4 wire.
Answer: Compute the kVA required. Motor — From table 4 the current is 68 amps.
240 volts x 68 amps x 1.73 = 28.2 kVA
1000
(The kVA can also be obtained from table 4).
Heater — 4 kVA
A three phase transformer must be selected so that any one phase is not overloaded.
Each phase should have the additional 4 kVA rating required by the heater even though
the heater will operate on one phase only. So, the transformer should have a minimum
kVA rating of 28.2 + 4 + 4 + 4 or 40.2 kVA. Refer to the appropriate selection chart.
A 480 delta primary — 240 delta secondary transformer may be used on a 4 wire,
480Y/277 volt supply. The fourth wire (neutral) is not connected to the transformer. To
not overload the transformer, a 45 kVA transformer should be selected.
NOTE: Any two wires of the 240 volts, 3 phase developed by the secondary of the
transformer may be used to supply the heater. Any 2 wires of a 3 phase system is
single phase.
12

Section 1_0412.indd 12

kVA 208 V 240 V
3

380 V 440 V 480 V 600 V

8.3

7.2

4.6

3.9

3.6

2.9

4.5 12.5

10.8

6.8

5.9

5.4

4.3

6

16.6

14.4

9.1

7.8

7.2

5.8

9

25

21.6

13.7

11.8

10.8

8.6

15

41

36

22.8

19.6

18.0

14.4

22.5

62

54

34.2

29

27

21.6

30

83

72

45.6

39

36

28

45

124

108

68.4

59

54

43

75

208

180

114

98

90

72

112.5

312

270

171

147

135

108

150

416

360

228

196

180

144

225

624

541

342

294

270

216

300

832

721

456

392

360

288

500

1387

1202

760

655

601

481

750

2081

1804

1139

984

902

721

1000 2775

2405

1519

1312

1202

962

TABLE 4
Full Load Amperes
Three Phase A.C. Motors ①
MIN.
575 V TRANSFORMER
KVA

HORSEPOWER

208 V

230 V

460 V

1 2

/

2.2

2.0

1.0

0.8

3 4

/

3.1

2.8

1.4

1.1

1.2

1

4.0

3.6

1.8

1.4

1.5

2

7.5

6.8

3.4

2.7

2.7

3

10.7

9.6

4.8

3.9

3.8

5

16.7

15.2

7.6

6.1

6.3

10

31

28

14

11

11.2

15

46

42

21

17

16.6

20

59

54

27

22

21.6

25

75

68

34

27

26.6

30

88

80

40

32

32.4

40

114

104

52

41

43.2

50

143

130

65

52

52

60

170

154

77

62

64

0.9

75

211

192

96

77

80

100

273

248

124

99

103

125

342

312

156

125

130

150

396

360

180

144

150

200

528

480

240

192

200

① When motor service factor is greater than 1,

increase full load amps proportionally.
Example: If service factor is 1.15, increase
above amp values by 15%.

3 Phase kVA =

Volts x Amps x 1.73
1000

NOTE: If motors are started more than once per
hour, increase minimum transformer kVA by 20%.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

UL-3R Enclosures
ENCAPSULATED SINGLE PHASE, .05 to .150 kVA
FEATURES
■

UL listed, CSA certified and UL-3R enclosure meets or exceeds all listing
criteria including NEMA, ANSI and OSHA standards.

■

Easy and convenient installation to meet your requirements, the transformer
can be mounted in any position.

■

Long Life UL class 130°C insulation system. Transformers can be banked for
three phase service.

■

Large wiring compartment, no conduit or pull boxes required. Front access
for wiring ease. Wiring compartment remains cool.

■

Completely enclosed UL-3R enclosure for indoor/outdoor service. Rugged
non-ventilated construction.

■

Plenty of knockouts for multi-directional entry.

■

All copper lead wire terminations.

■

Ground studs for use with non-metallic conduit.

ENCAPSULATED SINGLE PHASE, .250 to 25 kVA
■

Installation keyhole mounting slots for mounting
bolts prior to installation. Mounting slots are
accessible from the front. Lifting ears are included
on 3 to 25 kVA units.

■

Wiring flexible copper leadwire terminations for
easy connections outside the front access wiring
compartment. Dual size knockouts in both sides
and the bottom of the wiring compartment for
greater wiring convenience and flexibility.

FEATURES
■

UL listed, CSA certified and UL-3R enclosures meets or
exceeds all listing criteria including NEMA, ANSI and OSHA
standards.

■

Shielded for cleaner power.

■

Encapsulated and completely enclosed design electrical
grade silica and resin compounds completely enclose the
core and coil to seal out all moisture and air. UL Type 3R
enclosure for indoor or outdoor service. Encapsulation eliminates
corrosion and insulation deterioration.

■

Quiet operation with sound levels well below NEMA standards.

■

Long life UL class 155°C insulation system. 115°C rise thru
.750 kVA; 180°C insulation system, 115°C rise, 1 kVA and above.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 13

13

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

Shielded Power in Many Design Styles
ENCAPSULATED THREE PHASE 3 to 75 kVA
316 STAINLESS STEEL
TRANSFORMERS
FEATURES

FEATURES
■

UL listed, CSA certified and UL-3R enclosure meets
or exceeds all listing criteria including NEMA, ANSI and
OSHA standards.

■

3R enclosure.

■

Comply with NEC Class 1, Division 2, when installed
per NEC 501-2 (b).

■

Encapsulated construction.

■

Single phase: 0.25 – 25 kVA.
Three phase: 3 – 7.5 kVA.

■

Core and Coil assembly completely encapsulated in
polyester or epoxy seals out all moisture, eliminating
corrosion and deterioration of insulation.

■

Electrostatic shielding.

APPLICATIONS
■

Harsh industrial locations
Corrosive chemical exposure

■

UL Class 180°C insulation system. 115°C rise.

■

■

Extra large front access wiring compartment through 9 kVA;
top access through 75 kVA for easier installation and cooler
case temperatures.

■

Waste water treatment facilities

■

Coastal or marine applications with high salt mist

■

Any application where painted cold roll steel is not adequate

■

Completely enclosed — suitable for indoor/outdoor
service. Consult selection charts for details. Excellent for
dust or lint laden atmosphere.

■

Encapsulated — electrical grade silica and resin
compound completely encloses the core and coil.
Encapsulation seals out all moisture and air, eliminating
corrosion and insulation deterioration.

■

High efficiency and excellent regulation.

■

Sound levels below NEMA standards.

■

Keyhole mounting slots permit installation of mounting
bolts prior to hanging transformer and are accessible from
the front. Lifting ears for easy installation.

■

Wiring connections can be made outside of wiring
compartment due to the use of flexible leads.

■

3-9 kVA provided with dual size knockouts in sides and
bottom of wiring compartment.

■

Termination — copper lead wire.

■

Electrostatic shielding provided on all 60 Hz isolation
transformers.

NOTE: Units above 15 kVA apply to Groups F and K.

14

Section 1_0412.indd 14

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

VENTILATED
SINGLE PHASE 37.5 to 250 kVA
THREE PHASE 25 to 1000 kVA
FEATURES
■

With weather shield, UL Type 3R enclosure type 2 enclosure
without weather shield. UL listed and CSA certified.

■

UL Class 220°C insulation system, 150°C rise.

■

Extra large wiring compartment for easier installation and
cooler case temperatures.

■

NEMA standard bus bar terminals, no special tools
needed to make clearly marked connections. Tap
changing easily accomplished with jumpers.

■

Aluminum windings for increased insulation life, cooler
operation, lower losses.

■

Noise and vibration isolating pads standard to assure
quiet operation.

■

Large permanently legible nameplates on front.

■

Single phase units can be banked for 3 phase service.

■

All units have ground studs for use with non-metallic
conduit.

■

Suitable for wall or “trapeze” mounting. Wall brackets are
available for units up to 50 kVA single and 75 kVA
three phase.

■

Other models are available with class 220°C insulation
and either 115°C or 80°C rise operating temperature. Refer
to Opti-Miser ® Section.

■

Termination — single phase 37.5 to 100 kVA, copper bus;
167 to 250 kVA, aluminum bus. Three phase 27 to 225 kVA,
copper bus; 275 to 1000 kVA, aluminum bus.

■

Electrostatic shielding provided on all 60 Hz
isolation transformers. Not available on Groups D1 and G1.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 15

15

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

Resin Encapsulation seals out moisture,
dirt and eliminates corrosion. Excellent
choice for use in harsh environments.

Lifting ears

Front access opening

Secondary copper
leadwires

Sand and resin
encapsulation

Primary copper
leadwires
Electrostatic shield
ground point & ground stud

Wound Core construction for
lower losses and quiet operation.
Wound core

Copper tap
connections

Aluminum
strip coils

Fiberglass
terminal board

Vibration
isolation pads

Copper
secondary bus

Large wiring
compartment

Punched bottom
for ventilation

Design allows easy
cable/conduit entry
Copper
primary bus

Metal brace for
added strength

Ground
stud bolt

Photo representative of Drive Isolation Transformer

NOTE: These photographs are for illustration purposes only. Please contact factory for construction details.
16

Section 1_0412.indd 16

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

SELECTION CHARTS

SINGLE PHASE

GROUP I
240 X 480 PRIMARY VOLTS — 120/240 SECONDARY VOLTS — FOUR WINDINGS — 1Ø, 60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

① .05

T153004

6.41 (16.3)

3.14 (8.0)

3.05 (7.7)

4 (1.8)

W

0.875 (2.2)

NA

1–A

① .10

T153005

7.16 (18.2)

3.89 (9.9)

3.67 (9.3)

5 (2.3)

W

0.875 (2.2)

NA

1–A

① .15

T153006

7.16 (18.2)

3.89 (9.9)

3.67 (9.3)

7 (3.2)

W

0.875 (2.2)

NA

1–A

① .25

T253007S

8.68 (22.0)

4.08 (10.4)

3.88 (9.9)

10 (4.5)

W

0.50-0.75 (1.3-1.9)

NA

2–B

① .50

T253008S

9.06 (23.0)

4.37 (11.1)

4.20 (10.7)

15 (6.8)

W

0.50-0.75 (1.3-1.9)

NA

2–B

① .75

T253009S

9.68 (24.6)

4.75 (12.1)

4.50 (11.4)

19 (8.6)

W

0.50-0.75 (1.3-1.9)

NA

2–B

1.00

T253010S

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

W

0.50-0.75 (1.3-1.9)

NA

2–B

1.50

T253011S

11.62 (29.5)

5.50 (14.0)

5.13 (13.0)

30 (13.6)

W

0.50-0.75 (1.3-1.9)

NA

2–B

2.00

T253012S

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

W

0.50-0.75 (1.3-1.9)

NA

2–B

3.00

T253013S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

2–C

3.00

T2530134S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

3–C

5.00

T253014S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

2–C

5.00

T2530144S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

3–C

7.50

T2535153S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

0.75-1.25 (1.9-3.2)

NA

4–D

10.00

T2535163S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

125 (56.7)

W

0.75-1.25 (1.9-3.2)

NA

4–D

15.00

T2535173S

16.94 (43.0)

14.12 (35.9)

11.59 (29.4)

170 (77.1)

W

1.00-1.50 (2.5-3.8)

NA

4–D

25.00

T2535183S

18.44 (46.8)

16.13 (41.0)

13.34 (33.9)

250 (113.0)

W

1.00-1.50 (2.5-3.8)

NA

4–D

37.50

TP530193S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

280 (127.0)

F②

NA

WSA1

5–E

kVA

APPROX. DIMENSIONS
Inches (cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

50.00

TP530203S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

350 (158.8)

F②

NA

WSA1

5–E

75.00

TP530213S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

430 (195.0)

F

NA

WSA3

5–E

100.00

TP530223S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

525 (238.0)

F

NA

WSA4

5–E

167.00

TP530233S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1050 (476.3)

F

NA

WSA5

5–E

250.00

TP530243S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1440 (653.2)

F

NA

WSA5

5–E

Notes: 0.05 through 25.0 kVA encapsulated (exempt from TP1), 37.5 through 250.0 kVA TP1 compliant

GROUP I – 316SS
316 STAINLESS STEEL
240 X 480 PRIMARY VOLTS — 120/240 SECONDARY VOLTS — FOUR WINDINGS — 1Ø, 60 Hz
APPROX. DIMENSIONS
Inches (Cm.)
DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

3.88 (9.9)

10 (4.5)

W

NA

NA

2-B

4.37 (11.1)

4.20 (10.7)

15 (6.8)

W

NA

NA

2-B

9.68 (24.6)

4.75 (12.1)

4.50 (11.4)

19 (8.6)

W

NA

NA

2-B

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

W

NA

NA

2-B

5.50 (14.0)

5.13 (13.0)

30 (13.6)

W

NA

NA

2-B

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

W

NA

NA

2-B

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

NA

NA

3-C

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

NA

NA

3-C

kVA

CATALOG NO.
HEIGHT

WIDTH

0.25

T253007SS

8.68 (22.0)

4.08 (10.4)

0.50

T253008SS

9.06 (23.0)

0.75

T253009SS

1.00

T253010SS

1.50

T253011SS

11.62 (29.5)

2.00

T253012SS

3.00

T253013SS

5.00

T253014SS

Wiring Diagrams &
Design Figures
Begin on Page 154

7.50

T253515SS

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

NA

NA

4-D

10.00

T253516SS

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

125 (56.7)

W

NA

NA

4-D

15.00

T253517SS

16.94 (43.0)

14.12 (35.9)

11.59 (29.4)

170 (77.1)

W

NA

NA

4-D

25.00

T253518SS

18.44 (46.8)

16.13 (41.0)

13.34 (33.9)

250 (113.0)

W

NA

NA

4-D

Notes: 0.25 through 25.0 kVA encapsulated (exempt from TP1)
① Suitable for 50/60 Hz.
② Wall mounting brackets are available for these sizes, refer to page 145.
ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 17

17

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP IA
240 X 480 PRIMARY VOLTS — COPPER WINDINGS — 120/240 SECONDARY VOLTS — FOUR WINDINGS — 1Ø, 60 Hz
APPROX. DIMENSIONS
Inches (Cm.)
DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

10.84 (27.5)

100 (45.4)

W

0.75-1.25 (1.9-3.2)

NA

4–D

13.50 (34.3)

10.84 (27.5)

120 (54.4)

W

0.75-1.25 (1.9-3.2)

NA

4–D

14.12 (35.9)

11.59 (29.4)

160 (72.6)

W

1.00-1.50 (2.5-3.8)

NA

4–D

18.44 (46.8)

16.13 (41.0)

13.34 (33.9)

250 (113.0)

W

1.00-1.50 (2.5-3.8)

NA

4–D

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

295 (133.8)

F②

NA

WSA1

5–E

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

378 (172.0)

F②

NA

WSA1

5–E

kVA

CATALOG NO.
HEIGHT

WIDTH

7.50

TC535153S

15.19 (38.6)

13.50 (34.3)

10.00

TC535163S

15.19 (38.6)

15.00

TC535173S

16.94 (43.0)

25.00

TC535183S

37.50

TPC530193S

50.00

TPC530203S

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: 7.5 through 25.0 kVA encapsulated (exempt from TP1), 37.5 through 50.0 kVA TP1 compliant

GROUP II
NON-VENTILATED TRANSFORMERS — 240 X 480 PRIMARY VOLTS — 120/240 SECONDARY VOLTS — FOUR WINDINGS — 1Ø, 60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

37.50

TE2530193S

35.47 (90.1)

31.90 (81.0)

26.90 (68.3)

430 (195.0)

F②

NA

NA

5–H

50.00

TE2530203S

35.47 (90.1)

31.90 (81.0)

26.90 (68.3)

430 (195.0)

F②

NA

NA

5–H

75.00

TE2A530213S

35.47 (90.1)

31.90 (81.0)

26.90 (68.3)

525 (238.0)

F

NA

NA

5–H

100.00

TE1530223S

42.00 (106.7)

40.00 (101.6)

30.00 (76.2)

775 (352.0)

F

NA

NA

5–H

kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: 37.5 through 100.0 kVA non-ventilated (exempt from TP1)

① Suitable for 50/60 Hz.
② Wall mounting brackets are available for these sizes, refer to page 145.

18

Section 1_0412.indd 18

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP IV
600 PRIMARY VOLTS — 120/240 SECONDARY VOLTS — THREE WINDINGS — 1Ø, 60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

① .05

T153104

6.41 (16.3)

3.14 (8.0)

3.05 (7.7)

4 (1.8)

W

0.875 (2.2)

NA

8–A

① .10

T153105

7.16 (18.2)

3.89 (9.9)

3.67 (9.3)

5 (2.3)

W

0.875 (2.2)

NA

8–A

① .15

T153106

7.16 (18.2)

3.89 (9.9)

3.67 (9.3)

7 (3.2)

W

0.875 (2.2)

NA

8–A

① .25

T253107S

8.68 (22.0)

4.08 (10.4)

3.88 (9.9)

10 (4.5)

W

0.50-0.75 (1.3-1.9)

NA

9–B

① .50

T253108S

9.06 (23.0)

4.37 (11.1)

4.20 (10.7)

15 (6.8)

W

0.50-0.75 (1.3-1.9)

NA

9–B

① .75

T253109S

9.68 (24.6)

4.75 (12.1)

4.50 (11.4)

19 (8.6)

W

0.50-0.75 (1.3-1.9)

NA

9–B

1.00

T253110S

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

W

0.50-0.75 (1.3-1.9)

NA

9–B

1.50

T253111S

11.62 (29.5)

5.50 (14.0)

5.13 (13.0)

30 (13.6)

W

0.50-0.75 (1.3-1.9)

NA

9–B

2.00

T253112S

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

W

0.50-0.75 (1.3-1.9)

NA

9–B

3.00

T2531131S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

10–C

5.00

T2531141S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

10–C

7.50

T2536151S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

0.75-1.25 (1.9-3.2)

NA

10–D

10.00

T2536161S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

125 (56.7)

W

0.75-1.25 (1.9-3.2)

NA

10–D

15.00

T2536171S

16.94 (43.0)

14.12 (35.9)

11.59 (29.4)

170 (77.1)

W

1.00-1.50 (2.5-3.8)

NA

10–D

25.00

T2536181S

18.44 (46.8)

16.13 (41.0)

13.34 (33.9)

250 (113.0)

W

1.00-1.50 (2.5-3.8)

NA

10–D

37.50

TP531193S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

275 (125.0)

F②

NA

WSA1

11-E

50.00

TP531203S

29.90 (76.0)

28.15 (71.5)

22.37 (56.8)

340 (154.0)

F②

NA

WSA2

11–E

75.00

TP531213S

35.47 (90.0)

31.90 (81.0)

26.88 (68.3)

430 (195.0)

F

NA

WSA3

11-E

100.00

TP531223S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

525 (238.0)

F

NA

WSA4

11-E

167.00

TP531233S

45.60 (115.8)

39.5 (100.3)

35.5 (90.2)

1050 (476.3)

F

NA

WSA5

11-E

kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: 0.05 kVA through 25.0 kVA encapsulated (exempt from TP1), 37.5 through 167.0 kVA C802 compliant

GROUP V
208 PRIMARY VOLTS — 120/240 SECONDARY VOLTS — THREE WINDINGS — 1Ø, 60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

37.5

TP536491S

25.48 (64.7)

24.39 (62.0)

19.37 (49.2)

257 (117.0)

F②

N/A

WSA1

58–E

50.0

TP536503S

25.48 (64.7)

24.39 (62.0)

19.37 (49.2)

340 (154.2)

F②

N/A

WSA1

17–E

75.0

TP536513S

35.40 (89.9)

31.90 (81.0)

26.88 (68.2)

420 (190.5)

F②

N/A

WSA3

17–E

kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: 1.0 kVA through 25.0 kVA encapsulated (exempt from TP1), 37.5 through 75 kVA TP1 compliant

① Suitable for 50/60 Hz.
② Wall mounting brackets are available for these sizes, refer to page 145.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

19

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP VII
120/208/240/277 PRIMARY VOLTS –– 120/240 SECONDARY VOLTS –– 1Ø, 60 Hz
APPROX. DIMENSIONS
Inches (Cm.)
DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

5.13 (13.0)

23 (10.4)

W

0.50-0.75 (1.3-1.9)

NA

23–B

5.50 (14.0)

5.13 (13.0)

30 (13.6)

W

0.50-0.75 (1.3-1.9)

NA

23–B

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

37 (16.8)

W

0.50-0.75 (1.3-1.9)

NA

23–B

T279743S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

23–C

T279744S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

23–C

7.5

T279745S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

105 (47.6)

W

0.75-1.25 (1.9-3.2)

NA

63–D

10.0

T279746S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

124 (56.2)

W

0.75-1.25 (1.9-3.2)

NA

63–D

15.0

T279747S

16.94 (43.0)

14.12 (35.9)

11.59 (29.4)

171 (77.6)

W

1.00-1.50 (2.5-3.8)

NA

63–D

25.0

T279748S

18.44 (46.8)

16.13 (41.0)

13.34 (33.9)

261 (118.4)

W

1.00-1.50 (2.5-3.8)

NA

63–D

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

kVA

CATALOG NO.
HEIGHT

WIDTH

1.0

T279740S

10.50 (26.7)

5.50 (14.0)

1.5

T279741S

11.62 (29.5)

2.0

T279742S

3.0
5.0

Wiring Diagrams &
Design Figures
Begin on Page 154

GROUP VIII
AUTO-TRANSFORMERS
240 PRIMARY VOLTS — 120/240 SECONDARY VOLTS — 1Ø, 60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

9.06 (23.0)

4.37 (11.1)

4.20 (10.7)

15 (6.8)

W

0.50-0.75 (1.3-1.9)

NA

12–B

T253061

9.68 (24.6)

4.50 (11.4)

4.51 (11.5)

19 (8.6)

W

0.50-0.75 (1.3-1.9)

NA

12–B

T253062

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

W

0.50-0.75 (1.3-1.9)

NA

12–B

3.0

T253063

11.62 (29.5)

5.50 (14.0)

5.13 (13.0)

30 (13.6)

W

0.50-0.75 (1.3-1.9)

NA

12–B

5.0

T253064

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

W

0.50-0.75 (1.3-1.9)

NA

12–B

7.5

T253065

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

12–C

10.0

T253066

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

0.75-1.25 (1.9-3.2)

NA

12–D

15.0

T253067

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

0.75-1.25 (1.9-3.2)

NA

12–D

kVA

1.0

T253060

1.5
2.0

20

Section 1_0412.indd 20

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

Wiring Diagrams &
Design Figures
Begin on Page 154

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP IX
EXPORT MODEL
190/200/208/220 X 380/400/416/440 PRIMARY VOLTS
120/240 SECONDARY VOLTS — 1Ø, 50/60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

* 1.0

TF217437S

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

W

0.50-0.75 (1.3-1.9)

NA

14–B

* 2.0

TF217439S

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

W

0.50-0.75 (1.3-1.9)

NA

14–B

* 3.0

TF249873S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

14–C

* 5.0

TF252520S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

14–C

* 7.5

TF2-52794S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

0.75-1.25 (1.9-3.2)

NA

14–D

kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

* 10.0

TF252795S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

125 (56.7)

W

0.75-1.25 (1.9-3.2)

NA

14–D

* 15.0

TF252796S

16.94 (43.0)

14.12 (35.9)

11.59 (29.4)

170 (77.1)

W

1.00-1.50 (2.5-3.8)

NA

14–D

* 25.0

TF252797S

18.44 (46.8)

16.13 (41.0)

13.34 (33.9)

300 (136.0)

W

1.00-1.50 (2.5-3.8)

NA

14–D

* CE Marked

GROUP X
EXPORT MODEL②
190/208/220/240 x 380/416/440/480 PRIMARY VOLTS –– 120/240 SECONDARY VOLTS –– 1Ø, 50/60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

*1.0

TF279260S

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

W

0.50-0.75 (1.3-1.9)

NA

64–B

*2.0

TF279261S

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

W

0.50-0.75 (1.3-1.9)

NA

64–B

*3.0

TF279262S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

64–C

*5.0

TF279263S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

64–C

*7.5

TF279264S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

0.75-1.25 (1.9-3.2)

NA

64–D

*10.0

TF279265S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

125 (56.7)

W

0.75-1.25 (1.9-3.2)

NA

64–D

*15.0

TF279266S

16.94 (43.0)

14.12 (35.9)

11.59 (29.4)

170 (77.1)

W

1.00-1.50 (2.5-3.8)

NA

64–D

*25.0

TF279267S

18.44 (46.8)

16.13 (41.0)

13.34 (33.9)

300 (136.1)

W

1.00-1.50 (2.5-3.8)

NA

64–D

kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

* CE Marked

GROUP XI
EXPORT MODEL②
190/200/208/220 x 380/400/416/440 PRIMARY VOLTS –– 110/220 SECONDARY VOLTS –– 1Ø, 50/60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

*1.0

TF279300S

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

W

0.50-0.75 (1.3-1.9)

NA

65–B

*2.0

TF279301S

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

W

0.50-0.75 (1.3-1.9)

NA

65–B

*3.0

TF279302S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

W

0.75-1.25 (1.9-3.2)

NA

65–C

*5.0

TF279303S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

65–C

*7.5

TF279304S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

115 (52.2)

W

0.75-1.25 (1.9-3.2)

NA

65–D

kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

* CE Marked

① Wall mounting brackets are available for these sizes, refer to page 145.
② Maximum exciting current 5% at 50 Hz.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 21

21

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP XII
277/480 PRIMARY VOLTS –– 208/277 SECONDARY VOLTS –– 1Ø, 60 Hz
APPROX. DIMENSIONS
Inches (Cm.)
DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

3.88 (9.9)

12 (5.4)

W

0.50-0.75 (1.3-1.9)

NA

78-B

4.37 (11.1)

4.20 (10.7)

19 (8.6)

W

0.50-0.75 (1.3-1.9)

NA

78-B

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

30 (13.6)

W

0.50-0.75 (1.3-1.9)

NA

78-B

GP123000S

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

58 (26.3)

W

0.75 -1.25 (1.9-3.2)

NA

78-C

GP125000S

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

80 (36.3)

W

0.75 -1.25 (1.9-3.2)

NA

78-C

10.00

GP1210000S

15.19 (38.6)

13.50 (34.3)

10.84 (27.5)

125 (56.7)

W

0.75 -1.25 (1.9-3.2)

NA

78-D

15.00

GP1215000S

16.94 (43.0)

14.12 (35.9)

11.59 (29.4)

161 (70.0)

W

1.00-1.50 (2.5-3.8)

NA

79-D

kVA

CATALOG NO.
HEIGHT

WIDTH

0.25

GP12250S

8.68 (22.0)

4.08 (10.4)

0.50

GP12500S

9.06 (23.0)

1.00

GP121000S

3.00
5.00

SELECTION CHARTS

THREE PHASE

GROUP A
208 DELTA PRIMARY VOLTS –– 480Y/277 SECONDARY VOLTS –– 3Ø, 60 Hz
APPROX. DIMENSIONS
Inches (Cm.)
DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

9.03 (22.9)

245 (111.0)

F①

NA

NA

48–I

24.40 (62.0)

19.40 (49.3)

330 (150.0)

F①

NA

WSA1

46–E

24.40 (62.0)

19.40 (49.3)

400 (181.0)

F①

NA

WSA1

46–E

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

530 (240.0)

F①

NA

WSA2

46–E

TP793714S

35.47 (90.1)

31.90 (81.0)

26.90 (68.3)

750 (340.0)

F

NA

WSA3

46–E

TP793724S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

950 (430.9)

F

NA

WSA4

46–E

225.0

TP793734S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1200 (544.0)

F

NA

WSA4

46–E

300.0

TP793744S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1550 (703.0)

F

NA

WSA5

46–E

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

18–F

kVA

CATALOG NO.
HEIGHT

WIDTH

15.0

T3793671S

18.86 (48.0)

20.30 (51.6)

30.0

TP793684S

25.50 (64.8)

45.0

TP793694S

25.50 (64.8)

75.0

TP793704S

112.5
150.0

Notes: 15 kVA unit encapsulated (exempt from TP1), 30 through 300 kVA TP1 compliant

GROUP B
240 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

9.0

T2A533601S

14.03 (36.0)

17.77 (45.1)

11.52 (29.3)

180 (81.6)

W

0.75-1.25 (1.9-3.2)

NA

15.0

T3533611S

18.86 (48.0)

20.30 (51.6)

9.03 (23.0)

250 (113.0)

F①

NA

NA

18–I

30.0

TP533624S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

325 (147.0)

F①

NA

WSA1

19–E

45.0

TP533634S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

350 (158.8)

F①

NA

WSA1

19–E

75.0

TP533644S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

450 (204.1)

F①

NA

WSA2

19–E

112.5

TP533654S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

696 (294.8)

F

NA

WSA3

19–E

150.0

TP533664S

41.52 (105.5)

32.90 (84.0)

29.87 (75.9)

978 (412.8)

F

NA

WSA4

19–E

225.0

TP533674S

41.52 (105.5)

32.90 (84.0)

29.87 (75.9)

1200 (544.0)

F

NA

WSA4

19–E

Notes: 9.0 through 15.0 kVA units encapsulated (exempt from TP1), 30 kVA through 225 kVA TP1 compliant

① Wall mounting brackets are available for these sizes, refer to page 145.
② Consult factory for wiring diagram.

22

Section 1_0412.indd 22

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP D
480 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY –– 3Ø, 60 Hz
APPROX. DIMENSIONS
Inches (Cm.)

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

W

0.75-1.25 (1.9-3.2)

NA

21–F

W

0.75-1.25 (1.9-3.2)

NA

21–F

0.75-1.25 (1.9-3.2)

NA

21–F

kVA

CATALOG NO.
HEIGHT

WIDTH

DEPTH

3.0

T2A533081S

10.38 (26.4)

12.37 (31.4)

7.47 (19.0)

75 (34.0)

6.0

T2A533091S

11.83 (30.0)

14.17 (36.0)

8.82 (22.4)

140 (63.5)

9.0

T2A533101S

14.03 (36.0)

17.77 (45.1)

11.52 (29.3)

180 (81.6)

W

15.0

T3533111S

18.86 (48.0)

20.30 (51.6)

9.03 (22.9)

250 (113.0)

F①

NA

NA

21–I

30.0

TP533123S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

290 (132.0)

F①

NA

WSA1

22–E

45.0

TP533133S

25.50 (64.7)

24.39 (61.9)

19.37 (49.2)

400 (181.0)

F①

NA

WSA1

22–E

75.0

TP533143S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

500 (226.8)

F①

NA

WSA2

22–E

112.5

TP533153S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

750 (340.0)

F

NA

WSA3

22–E

150.0

TP533163S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

970 (440.0)

F

NA

WSA4

22–E

225.0

TP1533173S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1200 (544.0)

F

NA

WSA4

22–E

300.0

TP533183S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1550 (703.0)

F

NA

WSA5

22–E

500.0

TP1533193S

57.80 (146.8)

45.60 (115.8)

41.50 (105.4)

2480 (1125.0)

F

NA

WSA7

22–G

750.0

TP1533213S

62.80 (159.5)

54.00 (137.2)

41.50 (105.4)

3600 (1633.0)

F

NA

WSA6

22–G

1000.0 TP1533222S

62.80 (159.5)

54.00 (137.2)

41.50 (105.4)

4300 (1950.0)

F

NA

WSA6

80–G

Notes: 3.0 through 15.0 kVA units encapsulated (exempt from TP1), 30.0 through1000.0 kVA TP1 compliant

GROUP D2
480 DELTA PRIMARY VOLTS –– COPPER WINDINGS –– 208Y/120 SECONDARY VOLTS, 150°C RISE –– 3Ø, 60 Hz
APPROX. DIMENSIONS
Inches (Cm.)

kVA

CATALOG NO.
HEIGHT

WIDTH

15.0

TC533111S*

18.90 (48.0)

20.30 (51.6)

30.0

TPC533123S

25.50 (64.8)

24.40 (62.0)

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

9.00 (22.9)

245 (111.1)

F①

NA

NA

21–I

19.40 (49.3)

346 (157.0)

F①

NA

WSA1

22–E

45.0

TPC533133S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

397 (180.1)

F①

NA

WSA1

22–E

75.0

TPC533143S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

521 (236.3)

F①

NA

WSA2

22–E

112.5

TPC533153S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

766 (347.5)

F

NA

WSA3

22–E

150.0

TPC533163S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1026 (465.4)

F

NA

WSA4

22–E

225.0

TPC533173S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1300 (589.7)

F

NA

WSA4

22–E

300.0

TPC533183S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1551 (703.5)

F

NA

WSA5

22–E

500.0

TPC533193S

57.80 (146.8)

45.00 (114.3)

41.50 (105.4)

2819 (1278.7)

F

NA

WSA7

22–E

* NOTE: TC-53311-1S––Encapsulated, 115° C Rise, 180°C Insulation (TP1 exempt), 30.0 through 500 kVA TP1 compliant

① Wall mounting brackets are available for these sizes, refer to page 145.
② Consult factory for wiring diagram.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 23

23

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP D4
115°C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY — 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

HEIGHT

WIDTH

DEPTH

30.0

TP533121S

29.48 (74.9)

28.15 (71.5)

22.37 (56.8)

360 (163.3)

F①

NA

WSA2

22-E

45.0

TP533131S

29.48 (74.9)

28.15 (71.5)

22.37 (56.8)

417 (189.2)

F①

NA

WSA2

22-E

75.0

TP533141S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

536 (243.1)

F①

NA

WSA3

22-E

112.5

TP533151S

41.50 (105.4)

32.90 (83.6)

29.90 (75.9)

760 (344.7)

F

NA

WSA4

22-E

150.0

TP533161S

41.50 (105.4)

32.90 (83.6)

29.90 (75.9)

950 (430.9)

F

NA

WSA4

22-E

225.0

TP533171S

45.59 (115.8)

39.50 (100.3)

35.50 (90.2)

1567 (712.3)

F

NA

WSA5

22-E

300.0

TP533181S

45.59 (115.8)

39.50 (100.3)

35.50 (90.2)

1553 (705.9)

F

NA

WSA5

22-E

500.0

TP533191S

57.84 (146.9)

45.50 (115.6)

41.50 (105.4)

2808 (1276.4)

F

NA

WSA7

22-G

GROUP D5
80°C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY — 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

HEIGHT

WIDTH

DEPTH

30.0

TP533128S

25.49 (64.7)

24.39 (61.9)

19.37 (49.2)

364 (165.1)

F①

NA

WSA1

22–E

45.0

TP533138S

29.48 (74.9)

28.15 (71.5)

22.37 (56.8)

500 (226.8)

F

NA

WSA2

22–E

75.0

TP533148S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

698 (316.6)

F

NA

WSA3

22–E

112.5

TP533158S

41.50 (105.4)

32.90 (83.6)

29.90 (75.9)

963 (437.7)

F

NA

WSA4

22–E

150.0

TP533168S

41.50 (105.4)

32.90 (83.6)

29.90 (75.9)

1145 (520.4)

F

NA

WSA4

22–E

For Copper Wound Transformers Consult Factory

For Additional Low Temperature Rise 115° and 80°C Units Consult Factory
GROUP F
ENCAPSULATED TRANSFORMERS, 115°C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

30.0

T3793123S

24.81 (63.0)

27.13 (68.9)

11.14 (28.3)

613 (278.1)

F

NA

NA

22–I

45.0

T3793133S

25.31 (64.3)

30.18 (76.7)

12.76 (32.4)

780 (354.0)

F

NA

NA

22–I

75.0

T3793143S

26.82 (68.1)

34.68 (88.1)

15.25 (38.7)

1126 (511.0)

F

NA

NA

22–I

Notes: 30.0 through 75.0 kVA encapsulated (TP1 exempt)

① Wall mounting brackets are available for these sizes, refer to page 145.
24

Section 1_0412.indd 24

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP F – 316 SS
316 STAINLESS STEEL
ENCAPSULATED TRANSFORMERS, 115° C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

HEIGHT

WIDTH

DEPTH

3.0

T2A53308SS

10.38 (26.4)

12.37 (31.4)

7.47 (19.0)

75 (34.0)

W

NA

NA

21-F

6.0

T2A53309SS

11.83 (30.0)

14.17 (36.0)

8.82 (22.4)

140 (63.5)

W

NA

NA

21-F

9.0

T2A53310SS

14.03 (35.6)

17.77 (45.1)

11.52 (29.3)

180 (81.6)

W

NA

NA

21-F

15.0

T353311SS

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

250 (113.0)

F

NA

NA

21-I

30.0

T379312SS

24.81 (63.0)

27.13 (68.9)

11.14 (28.3)

613 (278.1)

F

NA

NA

22-I

45.0

T379313SS

25.31 (64.3)

30.18 (76.7)

12.76 (32.4)

780 (354.0)

F

NA

NA

22-I

75.0

T379314SS

26.82 (68.1)

34.68 (88.1)

15.25 (38.7)

1126 (511.0)

F

NA

NA

22-I

Notes: 3.0 through 75.0 kVA units encapsulated (TP1 exempt)

GROUP G
480 DELTA PRIMARY VOLTS –– 240 DELTA / 120 TAP SECONDARY VOLTS
MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY –– 3Ø, 60 Hz
kVA②

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

HEIGHT

WIDTH

DEPTH

3.0

T2A-533281S

10.38 (26.4)

12.37 (31.4)

7.47 (19.0)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

25–F

6.0

T2A-533291S

11.83 (30.0)

14.17 (36.0)

8.82 (22.4)

140 (63.5)

W

0.75-1.25 (1.9-3.2)

NA

25–F
25–F

9.0

T2A-533401S

14.03 (36.0)

17.77 (45.1)

11.52 (29.3)

180 (81.6)

W

0.75-1.25 (1.9-3.2)

NA

15.0

T3-533411S

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

250 (113.0)

F①

NA

NA

25–I

30.0

TP1533423S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

325 (147.0)

F①

NA

WSA1

26–E

45.0

TP1533433S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

400 (181.0)

F①

NA

WSA1

26–E

75.0

TP1533443S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

500 (226.8)

F①

NA

WSA2

26–E

112.5

TP1533453S

35.47 (91.2)

31.90 (81.0)

26.88 (68.3)

750 (340.0)

F

NA

WSA3

26–E

150.0

TP1533463S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1125 (510.0)

F

NA

WSA4

26–E

225.0

TP1533473S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1200 (544.0)

F

NA

WSA4

26–E

300.0

TP1533483S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1550 (703.0)

F

NA

WSA5

26–G

500.0

TP1533493S

62.00 (157.5)

54.00 (137.2)

42.00 (106.7)

2675 (1213.0)

F

NA

WSA7

26–G

750.0

TP1533503S

62.80 (159.5)

54.00 (137.2)

41.50 (105.4)

3408 (1545.8)

F

NA

WSA6

26–G

Notes: 3.0 through 15.0 kVA units encapsulated (TP1 exempt), 30.0 through 750.0 kVA TP1 compliant. 3.0 kVA through 750.0 kVA provided with 120V lighting
tap limited to 5% of nameplate rating.

① Wall mounting brackets are available for these sizes, refer to page 145.
ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 25

25

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP I
480 DELTA PRIMARY VOLTS –– 480Y/277 SECONDARY VOLTS
MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY –– 3Ø, 60 Hz
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

15.0

T335000153S

18.86 (48.0)

20.30 (51.6)

9.03 (22.9)

250 (113.0)

F①

NA

NA

31–I

30.0

TP35000303S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

325 (147.0)

F①

NA

WSA2

31–E

45.0

TP135000453S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

400 (181.0)

F①

NA

WSA2

31–E

75.0

TP35000753S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

600 (272.0)

F①

NA

WSA2

31–E

112.5

TP35001123S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

710 (322.0)

F

NA

WSA3

31–E

150.0

TP35001503S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1155 (524.0)

F

NA

WSA4

31–E

225.0

TP35002253S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1210 (548.8)

F

NA

WSA4

31–E

300.0

TP35003003S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1600 (726.0)

F

NA

WSA5

31–E

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: 15.0 kVA unit encapsulated (TP1 exempt), 30.0 through 300.0 kVA TP1 compliant

GROUP J
600 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

HEIGHT

WIDTH

DEPTH

3.0

T2A-793301S

10.38 (26.4)

12.37 (31.4)

7.47 (19.0)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

28–F

6.0

T2A-793311S

11.83 (30.0)

14.17 (36.0)

8.82 (22.4)

140 (63.5)

W

0.75-1.25 (1.9-3.2)

NA

28–F

9.0

T2A-793321S

14.03 (36.0)

17.77 (45.1)

11.52 (29.3)

180 (81.6)

W

0.75-1.25 (1.9-3.2)

NA

28–F

15.0

T3-793331S

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

250 (113.0)

F①

NA

NA

28–I

30.0

TP131023S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

325 (147.0)

F①

NA

WSA1

29–E

45.0

TP131033S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

400 (181.0)

F①

NA

WSA1

29–E

75.0

TP131043S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

600 (272.0)

F①

NA

WSA2

29–E

112.5

TP131053S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

750 (340.0)

F

NA

WSA3

29-E

150.0

TP131063S

41.52 (105.5

32.90 (83.6)

29.87 (75.9)

970 (440)

F

NA

WSA4

29-E

225.0

TP131073S

41.52 (105.5

32.90 (83.6)

29.87 (75.9)

1200 (544)

F

NA

WSA4

29-E

300.0

TP130993S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1550 (703.0)

F

NA

WSA5

29-E

500.0

TP131123S

57.84 (146.9)

45.00 (114.3)

41.50 (105.4)

2480 (1125.0)

F

NA

WSA7

29-E

750.0

TP131133S

62.84 (159.6)

54.00 (137.2)

41.50 (105.4)

3600 (1633.0)

F

NA

WSA6

29-E

Notes: 3.0 through 15.0 kVA encapsulated (TP1 exempt), 30.0 through 75.0 kVA TP1 compliant

① Wall mounting brackets are available for these sizes, refer to page 145.
26

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP M
600 DELTA PRIMARY VOLTS –– 480Y/277 SECONDARY VOLTS –– 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

HEIGHT

WIDTH

DEPTH

3.0

T2A795161S

10.38 (26.4)

12.37 (31.4)

7.47 (19.0)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

55–F

6.0

T2A795171S

11.83 (30.0)

14.17 (36.0)

8.82 (22.4)

140 (63.5)

W

0.75-1.25 (1.9-3.2)

NA

55–F
55–F

9.0

T2A795181S

14.03 (38.8)

17.77 (45.1)

11.52 (29.3)

180 (81.6)

W

0.75-1.25 (1.9-3.2)

NA

15.0

T3795191S

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

250 (113.0)

F①

NA

NA

55–I

30.0

TP795203S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

400 (181.0)

F①

NA

WSA2

51–E

45.0

TP795213S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

425 (193.0)

F①

NA

WSA2

51–E

75.0

TP795223S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

700 (318.0)

F①

NA

WSA2

51–E

112.5

TP795233S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

750 (340.0)

F

NA

WSA3

51–E

150.0

TP795243S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1125 (510.0)

F

NA

WSA4

51–E

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

60–F

Notes: 3.0 through 15.0 kVA units are encapsulated (TP1 exempt), 30.0 through 150.0 kVA are TP1 compliant

GROUP 0
208 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

HEIGHT

WIDTH

DEPTH

3.0

T2A792681S

10.38 (26.4)

12.37 (31.4)

7.47 (19.0)

75 (34.0)

W

0.75-1.25 (1.9-3.2)

NA

6.0

T2A792691S

11.83 (30.0)

14.17 (36.0)

8.82 (22.4)

140 (63.5)

W

0.75-1.25 (1.9-3.2)

NA

60–F

9.0

T2A792701S

14.03 (36.0)

17.77 (45.1)

11.52 (29.3)

180 (81.6)

W

0.75-1.25 (1.9-3.2)

NA

60–F

15.0

T3-792711S

18.86 (48.0)

20.30 (51.6)

9.03 (22.9)

245 (111.0)

F①

NA

NA

60–I

30.0

TP792724S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

300 (136.0)

F①

NA

WSA1

61–E

45.0

TP792734S

25.48 (64.7)

24.39 (61.9)

19.37 (49.2)

365 (166.0)

F①

NA

WSA1

61–E

75.0
TP792744S
29.41 (74.7)
28.15 (71.5)
22.37 (56.8)
500 (227.0)
F①
NA
Notes: 3.0 through 15.0 kVA units are encapsulated (TP1 exempt), 30.0 through 75.0 kVA units are TP1 compliant

WSA2

61–E

GROUP P
600 DELTA PRIMARY VOLTS –– 240 DELTA/120 TAP SECONDARY VOLTS –– 3Ø, 60 Hz
kVA

CATALOG NO.

30.0

TP131423S

APPROX. DIMENSIONS
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

299 (135.6)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

F①

NA

WSA1

69–E

45.0

TP131433S

25.48 (64.7)

24.39 (61.9)

19.37 (49.2)

353 (160.1)

F①

NA

WSA1

69–E

75.0

TP131443S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

463 (210.0)

F①

NA

WSA2

69–E

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: 30.0 through 75.0 kVA units TP1 compliant

GROUP Q
240 DELTA PRIMARY VOLTS –– 480Y/277 SECONDARY VOLTS –– 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

15.0

T3-796931S

18.86 (48.0)

20.30 (51.6)

9.03 (22.9)

245 (111.1)

F①

NA

NA

70–I

30.0

TP796944S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

330 (149.7)

F①

NA

WSA1

71–E

45.0

TP796954S

25.48 (64.7)

24.39 (61.9)

19.37 (49.2)

380 (172.4)

F①

NA

WSA1

71–E

75.0

TP796964S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

455 (206.4)

F①

NA

WSA2

71–E

112.5

TP796974S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

687 (311.6)

F

NA

WSA3

71–E

150.0

TP796984S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

973 (441.3)

F

NA

WSA4

71–E

Notes: 15 kVA unit encapsulated (TP1 exempt), 30.0 through 150.0 kVA TP1 compliant
① Wall mounting brackets are available for these sizes, refer to page 145.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 27

27

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP T
380 DELTA PRIMARY VOLTS –– 220Y/127 SECONDARY VOLTS –– 3Ø, 50 Hz
kVA

CATALOG NO.

15.0

T3795511S

APPROX. DIMENSIONS
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

20.80 (52.8)

20.90 (53.1)

10.20 (25.9)

435 (197.3)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

F

NA

NA

24–I

30.0

T2A795523S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

365 (165.6)

F①

NA

WSA1

20–E

45.0

T2A795533S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

468 (212.3)

F①

NA

WSA2

20–E

75.0

T2A795543S

35.47 (90.1)

31.90 (80.0)

26.88 (68.3)

693 (314.3)

F

NA

WSA3

20–E

112.5

T2A795553S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

970 (440.0)

F

NA

WSA4

20–E

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

F①

NA

NA

73–I

Notes: 50 Hz units (TP1 exempt)

GROUP U
440 DELTA PRIMARY VOLTS –– 220Y/127 SECONDARY VOLTS –– 3Ø, 50 Hz
kVA

CATALOG NO.

10.0

TF220105S

APPROX. DIMENSIONS
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

18.90 (48.0)

20.30 (51.6)

9.00 (22.9)

245 (111.1)

15.0

TF220155S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

291 (132.0)

F①

NA

WSA1

73–E

25.0

TF220255S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

375 (170.1)

F①

NA

WSA1

73–E

50.0

TF220505S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

437 (198.2)

F①

NA

WSA2

73–E

Notes: 50 Hz units (TP1 exempt)

① Wall mounting brackets are available for these sizes, refer to page 145.

28

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

GROUP V
190/200/208/220/240 DELTA PRIMARY VOLTS –– 400Y/231 SECONDARY VOLTS –– 3Ø, 60 Hz
kVA

CATALOG NO.

15.0

T379083S

APPROX. DIMENSIONS
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

300 (136.1)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

F①

NA

NA

75-I

30.0

TP79085S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

511 (231.8)

F⑤

NA

WSA2

74-E

45.0

TP79087S

25.50 (64.8)

24.39 (62.0)

19.37 (49.2)

540 (244.9)

F⑤

NA

WSA1

74-E

75.0

TP79088S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

703 (318.9)

F

NA

WSA3

74-E

Notes: 15.0 kVA unit encapsulated (TP1 exempt), 30.0 through 75.0 kVA units TP1 compliant

AUTO-TRANSFORMERS
600 PRIMARY VOLTS –– 480 SECONDARY VOLTS –– 3Ø, 60 Hz
480 PRIMARY VOLTS –– 380 SECONDARY VOLTS –– 3Ø, 50/60 Hz ALTERNATE RATING
kVA
600 Pri.
480 Pri.

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.
HEIGHT

480V Sec. 380 Sec.

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

KNOCKOUTS
Inches (Cm.)

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

15.0

12.0

T2527031③

15.21 (38.6)

19.25 (48.9)

7.37 (18.7)

104 (47.2)

W

NA

NA

56–F

30.0

24.0

T2527051③

15.21 (38.6)

19.25 (48.9)

7.37 (18.7)

152 (68.9)

W

NA

NA

56–F

45.0

36.0

T2527071③

15.21 (38.6)

19.25 (48.9)

7.37 (18.7)

156 (70.8)

W

NA

NA

56–F

75.0

60.0

T3527101③

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

300 (136.1)

F①

NA

NA

56–I

112.5

90.0

T2A527121④

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

325 (147.0)

F⑤

NA

WSA1

57–E

150.0

120.0

T2A527131④

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

350 (158.8)

F⑤

NA

WSA1

57–E

225.0

180.0

T2A527151④

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

600 (272.0)

F⑤

NA

WSA2

57–E

300.0

240.0

T2A527171④

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

650 (294.8)

F⑤

NA

WSA2

57–E

450.0

360.0

T2A527181④

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

750 (340.0)

F

NA

WSA3

57–E

500.0

400.0

T2A527191④

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

790 (358.3)

F

NA

WSA3

57–E

Notes: Auto-Transformers TP1 exempt

① Wall mounting brackets use PL-79911.
② If used on unbalanced loads, these units should only be used on a 4 wire
system with the supply neutral connected to the transformer. If used on
balanced loads, such as motor loads, then they may be used on a 3 wire
system without a neutral or 4th wire.

③ These units are encapsulated with a 115° C temperature rise.
④ These units are ventilated with 150° C temperature rise.
⑤ Wall mounting brackets use PL-79912.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

29

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

SECTION

Economical Auto Arrangements
Using two single phase transformers
THREE PHASE
480 PRIMARY (open delta) VOLTS ––
240 SECONDARY (open delta) VOLTS –– 3Ø, 60 Hz
kVA ①

Qty. ②

Catalog No. ③

Primary
Full Load
Amps

Secondary
Full Load
Amps

Max. Size
Fuse or
Breaker

3.0

2

T253010S

3.60

7.20

10

5.0

2

T253011S

6.00

12.00

10

6.0

2

T253012S

7.20

14.40

15

10.0

2

T2530134S

12.00

24.00

15

17.0

2

T2530144S

20.50

40.80

30

26.0

2

T2535153S

31.50

63.00

40

34.0

2

T2535163S

41.00

81.60

60

52.0

2

T2535173S

63.00

125.00

80

86.0

2

T2535183S

104.00

206.30

150

130.5

2

TP530193S

157.00

314.00

200

173.0

2

TP530203S

209.00

418.00

300

259.0

2

TP530213S

312.00

623.00

400

346.0

2

TP530223S

417.00

834.00

600

578.0

2

TP530233S

696.00

1392.00

1000

865.0

2

TP530243S

1041.00

2082.00

1600

⑤ O = Fuse Location NEC 450-4, 1990.

600 PRIMARY VOLTS — 480 SECONDARY (open delta) VOLTS — 3Ø, 60 Hz
480 PRIMARY VOLTS — 380 SECONDARY (open delta) VOLTS — 3Ø, 50/60 Hz
Pri. 480V
Sec. 380V
kVA ①

Pri.
Amps

Sec.
Amps

Qty ②

Catalog ③
No.④

Max. Size
Fuse or
Breaker

7.80

9.60

2

T253010S

15

9.5

11.55

14.40

2

T253011S

15

17.0

16.33

20.41

13.5

16.33

20.41

2

T253012S

25

25.0

24.06

30.01

20.0

24.06

30.01

2

T2530134S

30

43.0

41.38

51.70

34.0

41.38

51.70

2

T2530144S

60

64.0

61.59

77.00

51.0

61.59

77.00

2

T2535153S

80

86.0

82.76

103.44

68.0

82.76

103.44

2

T2535163S

110

129.0

124.13

155.20

103.0

124.13

155.20

2

T2535173S

175

216.0

207.85

259.80

172.0

207.85

259.80

2

T2535183S

300

324.0

311.78

389.70

259.0

311.78

389.70

2

TP530193S

400

433.0

416.67

520.83

346.0

416.67

520.83

2

TP530203S

600

650.0

625.00

781.00

519.0

625.00

781.00

2

TP530213S

800

865.0

833.00

1040.00

692.0

833.00

1051.00

2

TP530223S

1200

1445.0

1391.00

1738.00

1156.0

1391.00

1756.00

2

TP530233S

2000

2164.0

2083.00

2602.00

1731.0

2083.00

2629.00

2

TP530243S

3000

DIAGRAM SHOWS NO TAP UNITS ONLY
A
B
C

600
OR
480
VOLTS
X

X

X

X

X
X

#1

6.5

S.

9.60
14.40

AN

7.70
11.55

TR

8.0
12.0

#2

Sec.
Amps

H
H

OPEN DELTAAUTO

H
H

H

H
H

480
OR
380
VOLTS

X
X

S.

Pri.
Amps

TR
AN

Pri. 600V
Sec. 480V
kVA ①

H
A
B
C

⑤ O = Fuse Location NEC 450-4, 1990.

① kVA capacity of three phase autotransformer bank, using two single phase, 60 Hz transformers
connected open delta.
② Catalog No. is for 1 transformer, 2 units are required.
③ Can be reverse connected with no change in kVA.
④ For transformer dimensions, refer to appropriate table in section 1, page 17.
⑤ For proper overcurrent protection, refer to Article 450-4 of N.E.C.
The diagrams above are for illustration purposes only. Please contact the factory for construction details.
Each Acme transformer is shipped with detailed wiring diagrams. Refer to nameplate located inside the front
cover for specific voltage tap combinations.

30

Section 1_0412.indd 30

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

SECTION

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

Auto Zig-Zag Grounding Transformers
For developing a neutral from a three phase, 3-wire supply

PRIMARY (INPUT): 480 VOLTS
3Ø, 3 WIRE
Use 3 Pieces
of
Type No.④

SECONDARY (OUTPUT): 480Y/277 VOLTS
3Ø, 4 WIRE

① 50/60 Hz
Nameplate
kVA
For Each Tfmr.

Available
In

No. of
Tfmr.
Required

Max. Continuous
Amp. Load Per
Phase
(277 Volts)

Three Phase
kVA

T253010S

No Taps Only

1.0

3

10.80

12.50

T253011S

No Taps Only

1.5

3

15.60

18.75

T253012S

No Taps Only

2.0

3

20.70

25.00
37.50

T2530134S

Taps & No Taps

3.0

3

31.20

T2530144S

Taps & No Taps

5.0

3

51.90

62.50

T2535153S

With Taps Only

7.5

3

78.00

93.50

T2535163S

With Taps Only

10.0

3

103.80

125.00

T2535173S

With Taps Only

15.0

3

156.00

187.50

T2535183S

With Taps Only

25.0

3

259.50

312.00

TP530193S

With Taps Only

37.5

3

390.00

468.00

TP530203S

With Taps Only

50.0

3

519.00

625.00

TP530213S

With Taps Only

75.0

3

780.00

935.00

TP530223S

With Taps Only

100.0

3

1038.00

1250.00

TP530233S

With Taps Only

167.0

3

1734.00

2085.00

See Footnote ②
COMMON TRIP DEVICE
A
C
A
A

INPUT
480 V
3Ø
3 WIRE

C
NEUTRAL

B

POINT
A,B OR C
TO
NEUTRAL
YIELDS
277 V
SINGLE
PHASE
4 WIRE

B

C

X

X

X
X

X
X

X
X

X

X

X

H

H

H

H

H

H

H

H

H

H

H

H

X

B

NEUTRAL
TRANS. #1

TRANS. #2

TRANS. #3

O = Fuse Location NEC 450-4, 1990. ③

① Applicable for the above connection only.
② Connection diagram (using 3 pieces of 1 phase, 60 hertz transformers connected zig-zag auto) for developing a neutral (4th wire) from a 3 phase,
3 wire supply.
③ For proper over-current protection, refer to the N.E.C. Article 450-5.
④ For transformer dimensions, refer to appropriate table in section 1, page 17.
Each Acme transformer is shipped with detailed wiring diagrams. Refer to nameplate located inside the front
cover for specific voltage tap combinations.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 1_0412.indd 31

31

6/13/12 10:07 AM

1

DRY-TYPE DISTRIBUTION TRANSFORMERS

SECTION

Do You Have a Non-Standard Three Phase
Voltage Application?
Many non-standard voltage correction problems can be solved
by using standard off-the-shelf single phase transformers.
The following is a list of such voltage combinations that can be
supplied by the Power Distribution Products Division. Drawings

for these products can be downloaded from our website at
www.acmepowerdist.com. If you don’t find the particular
combination you are looking for, contact our technical services
department for further assistance at 1-800-334-5214.

THREE PHASE
VOLTAGES
INPUT

OUTPUT

AVAILABLE
KVA
RANGE

208 Delta

208Y/120

3-75

208 Delta

208Y/120

3-86

208 Delta

240 Delta/120

1.68-25.2

TYPE OF
CIRCUIT

Isolation
Auto Zig-Zag ①
O.D. ISO

ACME
DRAWING
NO.

VOLTAGES
INPUT

OUTPUT

AVAILABLE
KVA
RANGE

TYPE OF
CIRCUIT

ACME
DRAWING
NO.

A-125879

416Y/240

208Y/120

3-15

Isolation

A-700319

A-125895

416Y/240

208Y/120

22.5-75

Isolation

A-700322

A-700314

480 Delta

240 Delta/120

1.68-5.04

O.D. ISO Hi-Leg ①

A-125849

208 Delta

240 Delta

3-75

Isolation

A-125880

480 Delta

240 Delta/120

3.36

O.D. ISO Hi-Leg ①

A-125850

208 Delta

416Y/240

3-75

Isolation

A-700598

480 Delta

240 Delta/120

5.04

O.D. ISO Hi-Leg ①

A-125851

208 Delta

416Y/240

112.5-300

Isolation

A-700591

480 Delta

240 Delta/120

8.4

O.D. ISO Hi-Leg ①

A-125852

208Y/120

208Y/120

3-75

Isolation

A-125857

480 Delta

240 Delta/120

12.6-25.2

O.D. ISO Hi-Leg ①

A-125853

208Y/120

374Y/216

22.5-75

Isolation

A-125883

480 Delta

240 Delta/120

42

O.D. ISO Hi-Leg ①

A-125854

208Y/120

374Y/216

112.5-750

Isolation

A-102730

480 Delta

240 Delta/120

63-266

O.D. ISO Hi-Leg ①

A-111702

208Y/120

480Y/277

3-75

Isolation

B-39881 (pg 2)

480 Delta

240 Delta

1.68-8.4

O.D. ISO

A-32817-B

240 Delta

208Y/120

3-15

Isolation

A-125855

480 Delta

240 Delta

5.04-8.4

O.D. ISO

A-125872

240 Delta

208Y/120

9-15

Isolation

A-102723

480 Delta

240 Delta

12.6-42

O.D. ISO

A-125873

240 Delta

208Y/120

22.5-75

Isolation

A-102722-B

480 Delta

240 Delta

63-420

O.D. ISO

A-125874

240 Delta

208Y/120

112.5-750

Isolation

A-125856

480 Delta

416Y/240

3-15

Isolation

A-125875

240 Delta

208Y/120

3-75

Isolation

A-125858

480 Delta

416Y/240

9-15

Isolation

A-125876

240 Delta

240 Delta

3-75

Isolation

A-125859

480 Delta

416Y/240

22.5-75

Isolation

A-125877

240 Delta

240Y/138

10.3-258.75

A-125896

480 Delta

416Y/240

112.5-750

Isolation

A-125878

240 Delta

374Y/216

22.5-75

Isolation

A-125881

480 Delta

394Y/228

9-15

Isolation

A-125884

240 Delta

374Y/216

112.5-750

Isolation

A-125882

480 Delta

394Y/228

22.5-75

Isolation

A-125885

240 Delta

480Y/277

3-75

Isolation

B-39881 (pg 1)

480 Delta

394Y/228

112.5-750

Isolation

A-125886

380 Delta

240 Delta

3-75

Isolation

A-700592

600 Delta

208Y/120

3-6

Isolation

A-102758

380 Delta

240 Delta

112.5-300

Isolation

A-700593

600 Delta

208Y/120

9-75

Isolation

A-125863

380 Delta

228 Delta

1.4-7.0

O.D. Auto

A-35633

600 Delta

208Y/120

112.5-500

Isolation

A-125864

380 Delta

228 Delta

4.2-7.0

O.D. Auto

A-125892

600 Delta

240 Delta

3-6

Isolation

A-125860

380 Delta

228 Delta

10.4-34.5

O.D. Auto

A-125893

600 Delta

240 Delta

9-75

Isolation

A-125861

380 Delta

228 Delta

51-227

O.D. Auto

A-125894

600 Delta

240 Delta

112.5-500

Isolation

A-125862

380 Delta

416Y/240

3-75

Isolation

A-700599

600 Delta

240 Delta/120

1.68-2.52

O.D. ISO Hi-Leg ①

A-125865

380 Delta

416Y/240

112.5-300

Isolation

A-700594

600 Delta

240 Delta/120

3.36

O.D. ISO Hi-Leg ①

A-125866

380Y/220

240 Delta

3-75

Isolation

A-700600

600 Delta

240 Delta/120

5.04-25.2

O.D. ISO Hi-Leg ①

A-125867

380Y/220

240 Delta

112.5-300

Isolation

A-700595

600 Delta

240 Delta/120

42

O.D. ISO Hi-Leg ①

A-125868

416Y/240

440 Delta

3-75

Isolation

A-700602

600 Delta

240 Delta/120

63-168

O.D. ISO Hi-Leg ①

A-125869

416Y/240

440 Delta

112.5-300

Isolation

A-700597

600 Delta

240 Delta

1.68-3.36

O.D. ISO

A-33227-A

416 Delta

240 Delta

3-75

Isolation

A-700601

600 Delta

240 Delta

5.04-42

O.D. ISO

A-125870

416 Delta

240 Delta

112.5-300

Isolation

A-700596

600 Delta

240 Delta

63-280

O.D. ISO

A-125871

Auto Zig-Zag ①

KEY:
O.D. — Open Delta
ISO — Isolation
AUTO — Autotransformer

① Cannot Be Reverse Connected.

32

Section 1_0412.indd 32

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:07 AM

S ECT IO N

2

HARMONIC
MITIGATING
TRANSFORMERS
General Description & Features ....................... 34
Selection Charts................................................ 35

NOTE: Design figures, connection
diagrams and accessories begin on page 154.

Section 2_0412.indd 33

6/13/12 10:13 AM

SECTION
W
NE

2

HARMONIC MITIGATING TRANSFORMERS

Harmonic Mitigating Transformers
FEATURES
■

Unlike K-rated transformers, Harmonic Mitigating
transformers actually treat the triplen harmonics
in the secondary winding

■

Reduce supply voltage flat topping caused by
non-linear loads

■

Improve overall power factor of supply system

■

Suitable for K-Factor loads

■

Improved energy efficiency (Meet TP1 at K-1 load)

■

Copper conductor construction

APPLICATIONS
Many of today’s electronic devices are non-linear loads
generating high levels of harmonic currents that are then
fed back onto your distribution system. This waveform
distortion results in overheating of motors and transformers,
increased neutral currents and malfunction/damage to
other equipment on the line.
Acme Electric introduces a line of harmonic mitigating
transformers that combine the technologies shown in our
non-linear load (K-Factor) transformers. Where conventional
K-Factor transformers “deal” with harmonics, containing them
within the transformer and preventing them from going
further upstream; harmonic mitigating transformers eliminate
harmonics by pitting them against themselves. This technology not only results in “cleaner power” but also provides the
most energy efficient means to deal with harmonic problems.

■

Financial facilities

■

Educational facilities

■

TV Broadcast facilities

■

Office buildings

■

Hospitals

■

Health care facilities

DIMENSIONAL DRAWING

D

Available in sizes ranging from 30 thru 225 kVA, with copper
windings and a variety of other design options and accessories, Acme harmonic mitigating transformers offer you
reduced transformer heat, reduced voltage distortion due to
3rd order harmonics, higher efficiency.

H

W

34

Section 2_0412.indd 34

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:14 AM

SECTION

2

HARMONIC MITIGATING TRANSFORMERS

SELECTION CHARTS
HARMONIC MITIGATING TRANSFORMERS
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS
kVA

APPROX. DIMENSIONS ②
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

535 (242.7)

CATALOG NO.

30.0

CMT533124S

TYPE MTG.
W – Wall
F – Floor

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

F①

WSA2

81-E

45.0

CMT533134S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

600 (272.2)

F①

WSA2

81-E

75.0

CMT533144S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

760 (344.7)

F①

WSA3

81-E
81-E

112.5

CMT533154S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1180 (535.2)

F

WSA4

150.0

CMT533164S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1340 (607.8)

F

WSA4

81-E

225.0

CMT533174S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1970 (893.6)

F

WSA4

81-E

MITIGATING TRANSFORMER WIRING DIAGRAM
PRIMARY: 480 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC

81

H2

H1
54 3 21

H3
54 321

54 321

Diagram Showing Delta Primary &
Zig-Zag Secondary

X0
X1

Primary
Volts
504

Connect
Primary
Lines To
H1, H2, H3

492
H1, H2, H3
480
H1, H2, H3
468
H1, H2, H3
456
H1, H2, H3
Secondary Volts
208
120
1 phase

(Zero degree angular displacement)

X3

X2

InterConnect
1

Connect
Secondary
Lines To

H2

X2

2
3
4
5

X0
X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

H1

H3

X1

X3

Harmonic Mitigating Transformers – How do they work?
They consist of a Delta primary and a Zig-Zag secondary.
The Zig-Zag secondary causes a phase shift in the triplen
harmonics, which results in a canceling effect. This prevents

the triplen harmonic losses from being coupled back into
the primary and results in cooler operation and increased
energy efficiency.

The Acme Advantages
1. Acme utilizes special winding techniques and “foil”
conductors in both its K-Factor and Harmonic Mitigating
transformers to minimize the heating effects of harmonic
currents.

2. The use of foil conductor increases the dielectric strength
of the insulation because one layer is only one turn. Foil
also eliminates the effects of axial forces, which can result
in failure of wire wound transformers.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 2_0412.indd 35

35

6/13/12 10:14 AM

SECTION

2

HARMONIC MITIGATING TRANSFORMERS

NOTES

36

Section 2_0412.indd 36

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:14 AM

S ECT IO N

3

NON-LINEAR
LOAD ISOLATION®
TRANSFORMERS
Special winding techniques minimize
eddy current losses. A double sized
neutral handles excessive neutral
currents. UL Listed for “K” Factor
Loads 4, 13 & 20.
General Description & Features ..................38-39
Selection Charts...........................................40-41
Definition of Terms ............................................ 42

NOTE: Dimension drawings, connection
diagrams and accessories begin on page 154.

Section 3_0412.indd 37

6/13/12 10:58 AM

SECTION

3

NON-LINEAR LOAD ISOLATION® TRANSFORMERS

Non-Linear Load Isolation® Transformers
FEATURES
■

Available in K-factors of 4, 13 and 20. Consult factory
for other K-factors.

■

150°C, 115°C and 80°C temperature rise units.

■

10-year limited warranty.

■

UL Listed and CSA Certified.

■

Available in 480V and 600V primary, 15 through 600 kVA.

■

Primary taps: (2) 2 /2 % ANFC, (4) 2 /2 % BNFC.

■

Aluminum windings

1

1

The following guide will help you select the proper
transformer when the K-factor is unknown.*

K-Factor/Type of Load
Non-linear loads generate high levels of harmonic currents. When
supplying power to these loads, a special transformer design is
necessary.
Typical non-linear loads include desktop computers, AC variable
speed drives, HID lighting, electronic ballasts, inverters and welders.
Of these non-linear loads, the major source of harmonic currents is
the switch mode power supply found in desktop computers, data
processors and other office equipment.
Acme non-linear load isolation transformers use special winding
techniques to minimize eddy current losses generated by
harmonic currents. A double-sized neutral conductor handles the
excessive neutral current found in non-linear load applications.
The amount of harmonics produced by a given load is represented by
the term “K” factor. The larger the “K” factor, the more
harmonics are present. Linear loads have a “K” factor of 1; switch
mode power supplies typically have a “K” factor as high as 20.
Acme non-linear load isolation transformers are shielded for cleaner
power and carry the Acme exclusive 10-year limited warranty.

K-1

Resistance heating
Incandescent lighting
Motors
Transformers, control/distribution

K-4

Welders
Induction heaters
HID lighting
Fluorescent lighting
Solid state controls

K-13 Telecommunications equipment
Branch Circuits in classrooms
and health care facilities

K-20 Main frame computers
Variable speed drives
Branch circuits with exclusive
loads of Data Processing
equipment
Desktop computers
* These ratings are to be used as a guide
only. They may vary from one load equipment
manufacturer to another. A Spectrum Analysis is the
best source.
Note: Non-sinusoidal and non-linear are
synonymous terms relating to the same
transformer type.

38

Section 3_0412.indd 38

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:58 AM

SECTION

3

NON-LINEAR LOAD ISOLATION® TRANSFORMERS

Industry standard full
capacity taps

Heavy gauge steel UL Type 2
enclosures, UL-3R Listed with
weather shield accessory

Wound core construction for lower
losses and quiet operation

Faraday shield eliminates
noise and voltage spikes

Vibration isolation pads
reduce noise

Large legible
nameplates on
front cover

Rigid steel bottom is
punched for ventilation
Aluminum or copper
windings for increased life,
lower current losses

Weather shields are available from stock
and are easily field-installed to make the
transformer weather resistant.

Double-sized neutral
conductor handles excessive neutral currents

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 3_0412.indd 39

39

6/13/12 10:58 AM

SECTION

3

NON-LINEAR LOAD ISOLATION® TRANSFORMERS

SELECTION CHARTS

THREE PHASE

GROUP A, K FACTOR 20, 150°C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz
APPROX. DIMENSIONS ②
Inches (Cm.)

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

kVA

CATALOG NO.
HEIGHT

WIDTH

DEPTH

15.0

TPNS02533113S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

325 (147.0)

F①

WSA1

22–E

30.0

TPNS02533123S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

420 (191.0)

F①

WSA1

22–E

45.0

TPNS02533133S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

575 (261.0)

F

WSA3

22–E

75.0

TPNS02533143S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

620 (281.0)

F

WSA3

22–E

112.5

TPNS02533153S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1200 (544.0)

F

WSA4

22–E

150.0

TPNS02533163S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1700 (771.0)

F

WSA4

22–E

225.0

TPNS02533173S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

2165 (982.0)

F

WSA5

22–G

TYPE MTG.
W – Wall
F – Floor

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: All TPNS models are TP1 compliant

GROUP B,K FACTOR 13, 150°C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz
APPROX. DIMENSIONS ②
Inches (Cm.)

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

kVA

CATALOG NO.
HEIGHT

WIDTH

DEPTH

15.0

TPNS01533113S

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

325 (147.0)

F①

WSA1

22–E

30.0

TPNS01533123S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

360 (163.0)

F①

WSA2

22–E

45.0

TPNS01533133S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

440 (200.0)

F①

WSA2

22–E

75.0

TPNS01533143S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

600 (272.0)

F

WSA3

22–E

112.5

TPNS01533153S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

870 (395.0)

F

WSA4

22–E

150.0

TPNS01533163S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1500 (680.0)

F

WSA4

22–E

225.0

TPNS11533173S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1550 (703.0)

F

WSA5

22–E

TYPE MTG.
W – Wall
F – Floor

WEATHER
SHIELD
P/N

Wiring Diagrams
Design Figures
Begin on Page 154

F①

WSA1

22–E

Notes: All TPNS models are TP1 compliant

GROUP C, K FACTOR 4, 150°C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz
kVA

CATALOG NO.

15.0

TPNS00533113S

APPROX. DIMENSIONS②
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

25.50 (64.8)

24.40 (62.0)

19.40 (49.3)

325 (147.0)

30.0

TPNS00533123S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

345 (157.0)

F①

WSA2

22–E

45.0

TPNS00533133S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

430 (195.0)

F①

WSA2

22–E
22–E

75.0

TPNS00533143S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

560 (254.0)

F

WSA3

112.5

TPNS00533153S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

875 (397.0)

F

WSA4

22–E

150.0

TPNS00533163S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1550 (703.0)

F

WSA4

22–E

225.0

TPNS10533173S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1600 (725.8)

F

WSA5

22–E

Notes: All TPNS models are TP1 compliant

① Wall mounting brackets are available for these sizes, refer to page 145.
② Dimensions in this section may change and are not to be used for detailed construction purposes. Please contact the factory for certified dimensional drawings.

40

Section 3_0412.indd 40

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:58 AM

SECTION

3

NON-LINEAR LOAD ISOLATION® TRANSFORMERS

GROUP H, K FACTOR 13, 115°C RISE
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz
kVA

APPROX. DIMENSIONS ②
Inches (Cm.)

CATALOG NO.
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT

TYPE MTG.
W – Wall

WEATHER
SHIELD

Wiring Diagrams &
Design Figures

Lbs. (Kg.)

F – Floor

P/N

Begin on Page 15

30.0

TPNS01533121S

29.90 (75.9)

28.20 (71.6)

22.40 (56.9)

400 (181.0)

F①

WSA2

22–E

45.0

TPNS01533131S

35.90 (91.2)

31.90 (81.0)

26.90 (68.3)

575 (261.0)

F

WSA3

22–E

75.0

TPNS01533141S

35.90 (91.2)

31.90 (81.0)

26.90 (68.3)

750 (340.0)

F

WSA3

22–E

112.5

TPNS01533151S

41.50 (105.4)

32.90 (83.6)

29.90 (75.9)

1120 (508.0)

F

WSA4

22–E

150.0

TPNS01533161S

41.50 (105.4)

32.90 (83.6)

29.90 (75.9)

1200 (544.0)

F

WSA4

22–E

TYPE MTG.
W – Wall
F – Floor

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

Notes: All TPNS models are TP1 compliant

GROUP M, K FACTOR 13, 150°C RISE
208 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz
APPROX. DIMENSIONS ②
Inches (Cm.)

kVA

CATALOG NO.
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

15.0

TPNS01792714S

25.50 (64.8)

24.90 (62.0)

19.37 (49.2)

320 (145.1)

F①

WSA1

61-E

30.0

TPNS01792724S

25.50 (64.8)

24.90 (62.0)

19.37 (49.2)

366 (166.0)

F①

WSA1

61-E

45.0

TPNS01792734S

29.40 (74.7)

28.15 (71.5)

22.37 (56.8)

522 (236.8)

F①

WSA2

61-E

75.0

TPNS01792744S

35.40 (89.9)

31.90 (81.0)

26.87 (68.2)

667 (302.6)

F

WSA3

61-E

Notes: All TPNS models are TP1 compliant

Notes: All TPNS models are TP1 compliant

For Additional Low Temperature Rise 115° and 80° Degree Units and Copper Wound Units,
Consult Factory
NON-LINEAR LOAD ISOLATION® WIRING DIAGRAMS (Refer to pgs 134-136)
NON-LINEAR LOAD ISOLATION® DESIGN FIGURES (Refer to pg 134)

① Wall mounting brackets are available for these sizes, refer to page 145.
② Dimensions in this section may change and are not to be used for detailed construction purposes. Please contact the factory for certified dimensional drawings.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

41

SECTION

3

NON-LINEAR LOAD ISOLATION® TRANSFORMERS

1. Linear loads

8. Voltage harmonic distortion (VHD)

Loads where the current waveform conforms to the waveform
of the applied voltage. Or loads where a change in current
is directly proportional to a change in applied voltage. For
example:

Voltage harmonic distortion is distortion caused by harmonic
currents flowing through the system impedance. The utility
power system has relatively low system impedance, and the
VHD is very low. But, VHD on the distribution power system
can be significant due to its relatively high system impedance.

• Resistance heating
• Incandescent lighting
• Water heater

9. Total harmonic distortion (THD)

2. Non-linear loads
Loads where the current waveform does not conform to the
waveform of the applied voltage. Or loads where a change in
current is not proportional to a change in applied voltage.
Examples are:
• Computer power supplies
• Motor drives
• Fluorescent lighting
Non-linear loads produce non-sinusoidal current or voltage
waveforms.

3. Sinusoidal current or voltage
This term refers to a periodic waveform that can be expressed
as the sine of a linear function of time.

4. Non-linear currents or voltages
A waveform of current or voltage which cannot be expressed
as the sine of a linear function of time. A non-linear load would
result in a non-sinusoidal current or voltage.

A sinusoidal waveform with a frequency that is an integral
multiple of the fundamental 60 Hz frequency.
Fundamental
2nd Harmonic
3rd Harmonic
4th Harmonic

11. Eddy currents
Currents flowing in a conducting material in the presence of a
time varying magnetic field. These currents are in addition to
the current drawn by the load.

12. Eddy current losses
Power dissipated due to eddy currents. Includes eddy current
losses in the core, windings, case and associated hardware of
a transformer.

A term used to express the difference
between the measured alternating current losses on a
transformer and the direct current (DC) losses (I2R). Stray
losses include eddy losses. Stray losses are usually
expressed as a percent of the direct current (DC) losses.

1: Percent value divided by 100.
2: The ratio of two components of a system.

6. Triplen harmonics
Odd multiples of the 3rd harmonic
(3rd, 9th, 15th, 21st, etc.).

7. Harmonic distortion
Non-linear distortion of a system
characterized by the appearance in the output of harmonic
currents (voltages) when the input is sinusoidal.

Section 3_0412.indd 42

1: The vector sum of the fundamental current and the total
harmonic distortion.
2: Square root of the sum of the squared value of the
fundamental current and the squared value of the total
harmonic distortion.

14. Per unit value

Current waveforms from non-linear loads appear distorted
because the non-linear waveform is the result of adding
harmonic components to the fundamental current.

42

10. Root mean squared current
(or voltage) RMS

13. Stray losses

5. Harmonic

60 Hz
120 Hz
180 Hz
240 Hz
etc.

The square root of the sum of the squares of all harmonic
currents present in the load excluding the 60 Hz fundamental.
It is usually expressed as a percent of the fundamental.

15. Harmonic spectrum “K” factor
The sum of the product of each harmonic current squared
and that harmonic number squared for all harmonics from
the fundamental (60 Hz) to the highest harmonic of any
measurable consequence. When the “K” factor is multiplied
by the stray losses of the transformer, the answer represents
the losses in the transformer caused by harmonic currents.
When these losses are added to the I2 R losses of the
transformer, the total load losses are known. The “K” factor for
a linear load without harmonics is one (1).

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 10:58 AM

S ECT I ON

4

DRIVE ISOLATION
TRANSFORMERS & AC LINE
REACTORS
Specifically designed to accommodate
the special voltage and kVA sizes
unique to AC and DC drive applications.
Shielded for extra protection from
supply line transients.
General Description & Features .....................44-45
Thermal Switches ................................................47
Selection Charts..............................................46-47
Windings, Terminations & Construction ..............47

AC Line Reactors are designed to
protect DC motor drives, AC vaåriable
frequency drives and the motors
they power.
AC LINE REACTORS
General Description & Features ......................48-49
Selection Charts...................................................50

NOTE: Design figures, connection
diagrams and accessories begin on page 130.

Section 4_0412.indd 43

6/13/12 11:04 AM

SECTION

4

DRIVE ISOLATION TRANSFORMERS

Drive Isolation Transformers
The Acme Drive Isolation Transformers are specifically designed to accommodate the
special voltages and kVA sizes unique to AC and
DC motor drive applications.

FEATURES
■

UL Type 3R Enclosures with Weather Shield
on Ventilated Units (above 20 kVA). Type 2
Enclosure without weather shield. UL Listed and
CSA certified. 7.5–20.0 kVA are encapsulated,
UL 3R.

■

3-Phase 60 Hertz.

■

180°C and 220°C insulation systems.

Encapsulated and ventilated designs. All
ventilated units, are of strip wound construction.
Acme’s reinforced core assemblies enhance
quiet operation.

■

Nominally 6% impedance.

■

Designed for use with AC, adjustable frequency
or DC drives.

■

Full capacity taps are featured on all units. On
7.5 through 20 kVA units, taps are 1-5% ANFC
and 1-5% BNFC. On 27 through 660 kVA units,
1
1
taps are 2-2 /2 % ANFC and 2-2 /2 % BNFC.

■

DTGA72S

Full range of kVA ratings cover all standard
drive systems.

■

Ample wiring compartment for easy cable entry.

■

Optional wall mounting brackets for certain sizes.

Stress relief
Acme uses strip conductors (above 7.5 kVA)
instead of wire for a DIT series that easily
accommodates the severe electrical and
mechanical stresses found in today’s AC & DC
motor drives. The inherent excellent line isolation
of these transformers is further enhanced with
the extra protection of Acme’s Electrostatic
Shield — free in all DIT’s.

Lower losses
The harmonic currents generated by AC & DC
drives increase eddy current losses (heat) in
transformer windings. The thicker the winding
conductor, the greater the losses. Acme uses
one turn per layer of thin strip conductor which
provides lower eddy current losses than
comparable wire wound units. Lower losses =
cooler operation and longer transformer life.

44

Section 4_0412.indd 44

DTHA03304S

DTGB0404S

■

DTGA0142S

Reduced short
circuit forces

H.P.

kVA

5.0

7.5

7.5
10.0

11.0
14.0

15.0
20.0
25.0

20.0
27.0
34.0

30.0
40.0

40.0
51.0

50.0
60.0
75.0

63.0
75.0
93.0

If you know the motor horse-power,
simply follow the drive system
manufacturer's recommendation. Or,
select the corresponding kVA from
the chart at right.

100.0
125.0

118.0
145.0

150.0
200.0
250.0

175.0
220.0
275.0

For example, a 40 Hp motor requires a
51 kVA DIT.

300.0
400.0

330.0
440.0

500.0
600.0

550.0
660.0

Strip windings minimize axial
short circuit forces that can cause
mechanical displacement of the
windings under fault conditions.
For extra protection all designs 7.5
kVA and above use primary and
secondary coils of equal axial length.
This feature tends to negate axial
short circuit forces, further improving
transformer life expectancy.

Selection
instructions

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:04 AM

SECTION

4

DRIVE ISOLATION TRANSFORMERS

Acme Advantages
Wound Cores and Strip
Winding mean lower losses

Copper terminations provide troublefree operation

All Acme DITs above 7.5 kVA are wound with strip windings
to ensure the lowest possible eddy current losses. All our
DITs use a three leg wound core. This superior design has
very low losses and quiet operation. Both of these features
combine to significantly reduce losses and operating costs
compared to other types of constructions.

All Acme DITs up to and including 220 kVA have copper
terminations. The transition from aluminum strip coil
conductors to copper terminations is accomplished by a
bonding process known as “Koldwelding™.” This process
has been used by Acme for over 25 years to provide a
trouble-free, permanent bonding of the two metals.

Wound core construction showing all copper terminations

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 4_0412.indd 45

45

6/13/12 11:04 AM

SECTION

4

DRIVE ISOLATION TRANSFORMERS

SELECTION CHARTS
GROUP A
kVA

Primary 460V Delta
Secondary 230Y/133

GROUP B
APPROX. DIMENSIONS ③
Inches (Cm.)

Primary 460V Delta
Secondary 460Y/266

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG. WEATHER
W - Wall
SHIELD
DIM.
F - Floor
P/N
DRAWING

7.5

CATALOG NO.
DTGA72S or TS ④ (37)

CATALOG NO.
DTGB72S or TS (34)

HEIGHT
15.21 (38.6)

WIDTH
19.25 (48.9)

DEPTH
7.37 (18.7)

180 (81.6)

W

NA

F

11.0

DTGA0112S or TS (37)

DTGB0112S or TS (34)

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

265 (120.0)

F①

NA

I

14.0

DTGA0142S or TS (37)

DTGB0142S or TS (34)

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

270 (123.0)

F①

NA

I

20.0

DTGA0202S or TS (37)

DTGB0202S or TS (34)

20.77 (52.8)

20.94 (53.2)

10.18 (25.9)

435 (197.0)

F①

NA

I

27.0

DTGA0274S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

320 (145.0)

F②

WSA1

E

34.0

DTGA0344S

DTGB0344S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

340 (154.0)

F②

WSA1

E

40.0

DTGA0404S

DTGB0404S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

395 (179.0)

F②

WSA1

E

51.0

DTGA0514S

DTGB0514S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

400 (181.0)

F②

WSA2

E

63.0

DTGA0634S

DTGB0634S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

550 (250.0)

F②

WSA2

E

75.0

DTGA0754S

DTGB0754S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

570 (259.0)

F②

WSA2

E

93.0

DTGA0934S

DTGB0934S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

685 (311.0)

F

WSA3

E

118.0

DTGA01184S

DTGB01184S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

765 (347.0)

F

WSA3

E

145.0

DTGA01454S

DTGB01454S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

990 (449.0)

F

WSA4

E

175.0

DTGA01754S

DTGB01754S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1100 (499.0)

F

WSA4

E

220.0

DTGA02204S

DTGB02204S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1120 (508.0)

F

WSA4

E

275.0

DTGA002754S

DTGB002754S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

2090 (948.0)

F

WSA5

E

330.0

DTGA03304S

(38)

DTGB0274S

(35)

DTGB03304S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

2090 (948.0)

F

WSA5

G

440.0

DTGB04404S

57.84 (146.9)

45.50 (115.6)

41.49 (105.4)

2295 (1043.2)

F

WSA7

G

550.0

DTGB05504S

57.84 (146.9)

45.50 (115.6)

41.49 (105.4)

2580 (1172.7)

F

WSA7

G

660.0

DTGB06604S

62.84 (159.6)

54.00 (137.2)

41.49 (105.4)

3700 (1678.3)

F

WSA6

G

770.0

DTGB07704S

62.84 (159.6)

54.00 (137.2)

41.49 (105.4)

4044 (1838.2)

F

WSA6

G

880.0

DTGB008804S

62.84 (159.6)

54.00 (137.2)

41.49 (105.4)

4230 (1922.7)

F

WSA6

G

990.0

DTGB9902S

62.84 (159.6)

54.00 (137.2)

41.49 (105.4)

4285 (1947.7)

F

WSA6

G

GROUP C
kVA

Primary 575V Delta
Secondary 230Y/133

GROUP D
APPROX. DIMENSIONS ③
Inches (Cm.)

Primary 575V Delta
Secondary 460Y/266

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG. WEATHER
W - Wall
SHIELD
DIM.
F - Floor
P/N
DRAWING

CATALOG NO.
DTHA72S or TS (40)

CATALOG NO.
DTHB72S or TS (43)

HEIGHT
15.21 (38.6)

WIDTH
19.25 (48.9)

DEPTH
7.37 (18.7)

180 (81.6)

W

NA

F

11.0

DTHA0112S or TS (40)

DTHB0112S or TS (43)

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

265 (120.0)

F①

NA

I

14.0

DTHA0142S or TS (40)

DTHB0142S or TS (43)

18.86 (47.9)

20.30 (51.6)

9.03 (22.9)

270 (123.0)

F①

NA

I

20.0

DTHA0202S or TS (40)

DTHB0202S or TS (43)

20.77 (52.8)

20.94 (53.2)

10.18 (25.9)

435 (197.0)

F①

NA

I

27.0

DTHA0274S

DTHB0274S (44)

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

320 (145.0)

F②

WSA1

E

34.0

DTHA0344S

DTHB0344S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

340 (154.0)

F②

WSA1

E

40.0

DTHA0404S

DTHB0404S

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

395 (179.0)

F②

WSA1

E

51.0

DTHA0514S

DTHB0514S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

400 (181.0)

F②

WSA2

E

63.0

DTHA0634S

DTHB0634S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

550 (250.0)

F②

WSA2

E

75.0

DTHA0754S

DTHB754S

29.90 (75.9)

28.15 (71.5)

22.37 (56.8)

570 (259.0)

F②

WSA2

E

93.0

DTHA0934S

DTHB0934S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

685 (311.0)

F

WSA3

E

7.5

(41)

118.0

DTHA01184S

DTHB01184S

35.90 (91.2)

31.90 (81.0)

26.88 (68.3)

765 (347.0)

F

WSA3

E

145.0

DTHA01454S

DTHB01454S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

990 (449.0)

F

WSA4

E

175.0

DTHB01754S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1100 (499.0)

F

WSA4

E

220.0

DTHB02204S

41.52 (105.5)

32.90 (83.6)

29.88 (75.9)

1120 (508.0)

F

WSA4

E

275.0

DTHB002754S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

2090 (948.0)

F

WSA5

E

330.0

DTHB03304S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

2090 (948.0)

F

WSA5

G

440.0

DTHB04404S

57.84 (157.5)

45.50 (115.6)

41.49 (105.4)

2580 (1172.7)

F

WSA7

G

550.0

DTHB05504S

57.84 (157.5)

45.50 (115.6)

41.49 (105.4)

2640 (1200.0)

F

WSA7

G

660.0

DTHB006604S

62.84 (159.6)

54.00 (137.2)

41.49 (105.4)

3700 (1678.3)

F

WSA6

G

① Optional wall mounting kits – part # PL 79911 refer to Page 145.
② Optional wall mounting kits – part # PL 79912 refer to Page 145.

③ Dimensions may change and are not to be used for detailed construction purposes.
Please contact the factory for certified dimensional drawings.
④ For factory added thermal protection, 7.5 thru 20.0 kVA change suffix ‘-2S’ to ‘-TS’.

The number in ( )’s following the catalog number is the electrical wiring diagram number beginning on page 135.
46

Section 4_0412.indd 46

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:04 AM

SECTION
SECTION

4

DRIVE ISOLATION TRANSFORMERS

GROUP E
kVA

PRIMARY 230 Delta
SECONDARY 230Y/133

7.5

APPROX. DIMENSIONS
Inches (Cm.)

CATALOG NO.

Height

Width

Depth

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

TYPE MTG.
W – Wall
F – Floor

Knockouts
Inches (Cm.)

WEATHER
SHIELD
P/N

DIM.
DRAWING

DTFA72S (62)

15.21 (38.6)

19.25 (48.9)

7.37 (18.7)

180 (81.6)

W

NA

NA

F

11.0

DTFA0112S (62)

18.86 (48.0)

20.30 (51.6)

9.03 (22.9)

265 (120.0)

F①

NA

NA

I

14.0

DTFA0142S

18.86 (48.0)

20.30 (51.6)

9.03 (22.9)

265 (120.0)

F①

NA

NA

I

20.0

DTFA0202S

20.77 (52.8)

20.94 (53.2)

10.18 (25.9)

435 (197.0)

F①

NA

NA

I

27.0

DTFA0274S (59)

25.48 (64.8)

24.39 (62.0)

19.40 (49.3)

302 (137.0)

F②

NA

WSA1

E

34.0

DTFA0344S

25.48 (64.8)

24.39 (62.0)

19.40 (49.3)

330 (150.0)

F②

NA

WSA1

E

40.0

DTFA0404S

25.48 (64.8)

24.39 (62.0)

19.40 (49.3)

370 (168.0)

F②

NA

WSA1

E

51.0

DTFA0514S

29.40 (74.7)

28.15 (71.5)

22.40 (56.9)

375 (170.0)

F②

NA

WSA2

E

63.0

DTFA0634S

29.40 (74.7)

28.15 (71.5)

22.40 (56.9)

495 (225.0)

F②

NA

WSA2

E

75.0

DTFA0754S

29.40 (74.7)

28.15 (71.5)

22.40 (56.9)

525 (238.0)

F②

NA

WSA2

E

93.0

DTFA0934S

35.40 (89.9)

31.90 (81.0)

26.90 (68.3)

685 (311.0)

F

NA

WSA3

E

118.0

DTFA01184S

35.40 (89.9)

31.90 (81.0)

26.90 (68.3)

710 (322.0)

F

NA

WSA3

E

145.0

DTFA01454S

41.52 (105.5)

32.90 (83.6)

29.90 (75.9)

980 (445.0)

F

NA

WSA4

E

175.0

DTFA01754S

41.52 (105.5)

32.90 (83.6)

29.90 (75.9)

1110 (504.0)

F

NA

WSA4

E

220.0

DTFA02204S

41.52 (105.5)

32.90 (83.6)

29.90 (75.9)

1120 (508.0)

F

NA

WSA4

E

① Optional wall mounting kits – part # PL 79911 refer to Page 145.
② Optional wall mounting kits – part # PL 79912 refer to Page 145.
The number in ( )’s following the catalog number is the electrical wiring diagram number beginning on page 155.

DRIVE ISOLATION DESIGN FIGURES (Refer to pg 130)

Windings, Terminations and Construction
KVA

PRIMARY
WINDING

SECONDARY
WINDING

INSULATION
SYSTEM

TERMINATION

ENCLOSURE

CONSTRUCTION
CORE

7.5

CU wire

CU wire

180°C

CU wire

Epoxy encapsulated

Wound/distributed gap

11-20

AL foil

AL foil

180°C

CU wire

Epoxy encapsulated

Wound/distributed gap

27-220

AL foil

AL foil

220°C

CU bus

Ventilated

Wound/distributed gap

275-660

AL foil

AL foil

220°C

AL bus

Ventilated

Butt stacked/Step lap

Figure 1

Thermal Switch Kit - PL-79900
Acme Thermal Switch Kits are designed for use with single and three phase
drive isolation and distribution transformers. Thermal switch kits are available
for a one or three sensor system.
Thermal sensors can be field or factory installed in the transformer winding
ducts to detect abnormal temperatures. The thermal sensors are a normally
closed contact that opens at 200°C ± 10°C and has a current capacity of 5
amps @ 120V or 2.5 amps @ 240V. This contact can activate any number of
different types of alarms or mechanisms that could warn of a potential failure.
KVA

MOUNTING POSITION

ILLUSTRATION

27.0-118.0

Bottom of the case

Figure 1

145-750

Top flange of the core bracket

Figure 2

COIL 1

COIL 2

COIL 3

CORE
BOTTOM OF CASE

Figure 2
TERMINAL BLOCK
EPOXY LAYER

For Information On The Following,
Please Contact The Factory
1. Transformers rated primary 230 volts delta, secondary 460Y/266 volts.
2. Low temperature rise units using class 220°C insulation with
either 115°C or 80°C rise operating temperature.
3. Totally enclosed non-ventilated units.

.625 (1.6 cm) H DIA.
EPOXY-RING

THERMAL SWITCH
.5H
(1.3 cm)
H

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

COIL 1

COIL 2

COIL 3

CORE
47

SECTION
SECTION

4

AC LINE REACTORS

AC Line Reactors
FEATURES

Protect your sensitive equipment from harmful line disturbances
with Acme AC Line Reactors. AC Line Reactors help
prevent equipment failure and downtime, and can add
years to the life of your equipment.
Designed to protect DC motor drives, AC variable frequency
drives and the motors they power. AC Line Reactors allow
Acme to augment the Drive Isolation Transformer package
to offer both line and load power quality protection for a
wide range of applications.
Our product line features flexible design and ease of
installation for use in a variety of applications such as paper
machines, process lines, press controls and drive systems,
along with tube mills and other sophisticated process
equipment. These applications are found in such industries as
food and beverage, paper, packaging systems and printing.

■

Gapped iron core inductor–designed for optimum
performance while providing harmonics compensation.

■

■

Precision wound copper coils–maximum protection from
short-circuiting.
Finger-safe terminal blocks (up to 60 HP).

■

Compact design–allows for more flexible installation.

■

Amperage ratings of 2 to 600 amps

■

Available in 3% and 5% impedance

■

Can be used with 208, 240, 480 and 600 volts.

■

Covered under Acme’s 10-year limited warranty.

■

UR and cUR Recognized.

■

CE Marked (up to 55 amps)

BENEFITS
Protect your motors and motor drives from a variety of power
conditioning problems while realizing the following benefits:
■

Protection from damaging voltage drop.

■

Elimination of nuisance tripping of drives or circuit
breakers.

■

Reduction of motor current surges and power line spike
currents.

■

Improvement in true power factor of capacitor input drives.

■

Cooler, quieter operation.

■

Reduction of harmonic distortion.

■

Longer life for motors and solid state components.

AC LINE REACTORS DIMENSIONAL DRAWINGS
1-60 HP; 2-80 Amp

48

Section 4_0412.indd 48

75-500 HP; 110-600 Amp

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:04 AM

SECTION
SECTION

4

AC LINE REACTORS

Applying Acme AC Line Reactors
Acme’s three-phase AC Line Reactors can be used as an input filter for adjustable speed DC drives and as input
or output filters for AC pulse width modulated variable frequency drives. They are bi-directional protective filtering
devices and can be applied in a variety of configurations.

Input to Inverter/Drive
AC Line Reactors protect your sensitive equipment from noise
generated by the drive or inverter. They protect the controller from
power surges, spikes and harmonic distortion.

Output of Inverter/Drive
Motors run cooler and quieter with an AC Line Reactor placed
between the inverter and motor. This application also reduces
dv/dt and protects the controller from short circuits and surges.

Multiple Controllers on a Single Power Line
Each drive or inverter on a single power line requires its own AC
Line Reactor in order to provide adequate surge protection, prevent
crosstalk and reduce harmonic distortion.

Multiple Motors Controlled by a Single Drive
Multiple motors controlled by a single drive require only one AC Line
Reactor between the controller and motors.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 4_0412.indd 49

49

6/13/12 11:04 AM

SECTION
SECTION

4

AC LINE REACTORS

SELECTION CHARTS	
	 GROUP B

®

480 VOLTS, 3% Z, 60 Hz (600 VOLTS, 2.4% Z; 240 VOLTS, 6% Z)
			MOTOR *	
	 CATALOG NO.	
HP	
AMP	

REACTOR			
AMP	
uH	
H	

DIMENSIONS		
W	
D	

MOUNTING DIMENSIONS	
A (Depth)	
B (Width)	

WEIGHT
(Lbs/Kg)

	 ALRB002TBC	

1	

2.1	

2	

11027	

3.875 (9.8)	

4.25 (10.8)	

3.125 (7.90)	

2.00 (5.1)	

1.44 (3.7)	

3 (1.4)

	 ALRB003TBC	

1.5	

3	

3	

7351	

3.875 (9.8)	

4.25 (10.8)	

3.125 (7.90)	

2.00 (5.1)	

1.44 (3.7)	

3 (1.4)

	 ALRB004TBC	

2	

3.4	

4	

5513	

3.875 (9.8)	

4.25 (10.8)	

3.125 (7.90)	

2.00 (5.1)	

1.44 (3.7)	

3 (1.4)

	 ALRB006TBC	

3	

4.8	

6	

3676	

3.875 (9.8)	

4.25 (10.8)	

3.125 (7.90)	

2.00 (5.1)	

1.44 (3.7)	

3 (1.4)

	 ALRB008TBC	

5	

7.6	

8	

2757	

4.75 (12.1)	

6.50 (16.5)	

3.75 (9.50)	

2.10 (5.3)	

2.00 (5.1)	

5 (2.3)

	 ALRB012TBC	

7.5	

11	

12	

1838	

4.75 (12.1)	

6.50 (16.5)	

3.75 (9.50)	

2.10 (5.3)	

2.00 (5.1)	

6 (2.7)

	 ALRB016TBC	

10	

14	

16	

1378	

4.75 (12.1)	

6.50 (16.5)	

3.75 (9.50)	

2.30 (5.8)	

2.00 (5.1)	

6 (2.7)

	 ALRB025TBC	

15	

21	

25	

882	

4.75 (12.1)	

6.50 (16.5)	

4.00 (10.2)	

2.60 (6.6)	

2.50 (6.4)	

9 (4.1)

	 ALRB027TBC	

20	

27	

27	

817	

4.75 (12.1)	

6.50 (16.5)	

4.00 (10.2)	

2.60 (6.6)	

2.50 (6.4)	

9 (4.1)

	 ALRB035TBC	

25	

34	

35	

630	

4.75 (12.1)	

6.50 (16.5)	

4.50 (11.4)	

3.20 (8.1)	

2.50 (6.4)	

13 (5.9)

	 ALRB045TBC	

30	

40	

45	

490	

4.75 (12.1)	

6.50 (16.5)	

4.50 (11.4)	

3.20 (8.1)	

3.00 (7.6)	

14 (6.4)

	 ALRB055TBC	

40	

52	

55	

401	

7.00 (17.8)	

9.00 (22.9)	

4.50 (11.4)	

3.50 (8.9)	

3.60 (9.1)	

22 (10.0)

	 ALRB080TBC	

60	

77	

80	

276	

7.00 (17.8)	

9.00 (22.9)	

4.75 (12.1)	

3.60 (9.1)	

3.60 (9.1)	

23 (10.4)

	 ALRB110CBC	

75	

96	

110	

200	

7.00 (17.8)	

9.00 (22.9)	

5.50 (14.0)	

3.60 (9.1)	

3.60 (9.1)	

27 (12.2)

	 ALRB130CBC	

100	

124	

130	

170	

7.00 (17.8)	

9.00 (22.9)	

6.50 (16.5)	

3.50 (8.9)	

3.60 (9.1)	

34 (15.4)

	 ALRB160CBC	

125	

156	

160	

138	

7.00 (17.8)	

9.00 (22.9)	

6.50 (16.5)	

4.20 (10.7)	

3.60 (9.1)	

36 (16.3)

	 ALRB200CBC	

150	

180	

200	

110	

7.00 (17.8)	

9.00 (22.9)	

8.00 (20.3)	

4.20 (10.7)	

3.60 (9.1)	

55 (24.9)

	 ALRB250CBC	

200	

240	

250	

88	

8.50 (21.6)	

10.80 (27.4)	

8.00 (20.3)	

5.70 (14.5)	

4.60 (11.7)	

74 (33.6)

	 ALRB300CBC	

250	

302	

300	

74	

8.50 (21.6)	

10.80 (27.4)	

8.00 (20.3)	

5.20 (13.2)	

4.60 (11.7)	

85 (38.6)

	 ALRB360CBC	

300	

361	

360	

61	

8.50 (21.6)	

10.80 (27.4)	

8.00 (20.3)	

6.20 (15.2)	

4.60 (11.7)	

105 (47.6)

	 ALRB420CBC	

350	

414	

420	

53	

8.50 (21.6)	

10.80 (27.4)	

8.50 (21.6)	

6.20 (15.2)	

4.60 (11.7)	

113 (51.3)

	 ALRB480CBC	

400	

477	

480	

46	

8.50 (21.6)	

10.80 (27.4)	

8.50 (21.6)	

6.70 (17.0)	

4.60 (11.7)	

119 (54.0)

MOUNTING DIMENSIONS	
A (Depth)	
B (Width)	

WEIGHT
(Lbs/Kg)

	 GROUP C
480 VOLTS, 5% Z, 60 Hz (600 VOLTS, 4% Z; 240 VOLTS, 10% Z )
			MOTOR *	
	 CATALOG NO.	
HP	
AMP	

REACTOR			
AMP	
uH	
H	

DIMENSIONS		
W	
D	

	 ALRC002TBC	

1	

2.1	

2	

18378	

3.875 (9.8)	

4.25 (10.8)	

3.125 (7.9)	

2.00 (5.1)	

1.44 (3.7)	

	 ALRC003TBC	

1.5	

3	

3	

12252	

3.875 (9.8)	

4.25 (10.8)	

3.125 (7.9)	

2.00 (5.1)	

1.44 (3.7)	

3 (1.4)

	 ALRC004TBC	

2	

3.4	

4	

9189	

3.875 (9.8)	

4.25 (10.8)	

3.125 (7.9)	

2.10 (5.3)	

1.44 (3.7)	

4 (1.8)

	 ALRC006TBC	

3	

4.8	

6	

6126	

4.75 (12.1)	

6.50 (16.5)	

3.75 (9.5)	

2.10 (5.3)	

2.00 (5.1)	

5 (2.3)

	 ALRC008TBC	

5	

7.6	

8	

4594	

4.75 (12.1)	

6.50 (16.5)	

3.75 (9.5)	

2.10 (5.3)	

2.00 (5.1)	

6 (2.7)

	 ALRC012TBC	

7.5	

11	

12	

3063	

4.75 (12.1)	

6.50 (16.5)	

3.75 (9.5)	

2.20 (5.6)	

2.00 (5.1)	

7 (3.2)

	 ALRC016TBC	

10	

14	

16	

2297	

4.75 (12.1)	

6.50 (16.5)	

4.00 (10.2)	

2.60 (6.6)	

2.00 (5.1)	

9 (4.1)

	 ALRC025TBC	

15	

21	

25	

1470	

4.75 (12.1)	

6.50 (16.5)	

4.50 (11.4)	

3.00 (7.6)	

2.00 (5.1)	

13 (5.9)

	 ALRC027TBC	

20	

27	

27	

1361	

4.75 (12.1)	

6.50 (16.5)	

4.50 (11.4)	

2.80 (7.1)	

3.00 (7.6)	

13 (5.9)

	 ALRC035TBC	

25	

34	

35	

1050	

7.00 (17.8)	

9.00 (22.9)	

4.75 (12.1)	

3.60 (9.1)	

3.00 (7.6)	

23 (10.4)

	 ALRC045TBC	

30	

40	

45	

817	

7.00 (17.8)	

9.00 (22.9)	

4.75 (12.1)	

3.60 (9.1)	

3.00 (7.6)	

23 (10.4)

	 ALRC055TBC	

40	

52	

55	

668	

7.00 (17.8)	

9.00 (22.9)	

4.75 (12.1)	

3.60 (9.1)	

3.00 (7.6)	

24 (10.9)

	 ALRC080TBC	

60	

77	

80	

459	

7.00 (17.8)	

9.00 (22.9)	

5.75 (14.6)	

4.60 (11.7)	

3.60 (9.1)	

34 (15.4)

	 ALRC110CBC	

75	

96	

110	

334	

7.00 (17.8)	

9.00 (22.9)	

6.50 (16.5)	

4.20 (10.7)	

3.60 (9.1)	

56 (25.4)

	 ALRC130CBC	

100	

124	

130	

283	

7.00 (17.8)	

9.00 (22.9)	

6.50 (16.5)	

4.20 (10.7)	

3.60 (9.1)	

56 (25.4)

	 ALRC160CBC	

125	

156	

160	

230	

7.00 (17.8)	

9.00 (22.9)	

8.00 (20.3)	

4.20 (10.7)	

3.60 (9.1)	

70 (31.8)

	 ALRC200CBC	

150	

180	

200	

184	

8.50 (21.6)	

10.80 (27.4)	

8.25 (21.0)	

5.90 (15.0)	

3.60 (9.1)	

76 (34.5)

	 ALRC250CBC	

200	

240	

250	

147	

8.50 (21.6)	

10.80 (27.4)	

8.25 (21.0)	

6.20 (15.7)	

4.60 (11.7)	

89 (40.4)

	 ALRC300CBC	

250	

302	

300	

123	

10.93 (27.8)	

16.50 (41.9)	

8.13 (20.7)	

6.20 (15.7)	

4.60 (11.7)	

106 (48.1)

	 ALRC360CBC	

300	

361	

360	

102	

10.93 (27.8)	

16.50 (41.9)	

9.50 (24.1)	

8.20 (20.8)	

4.60 (11.7)	

124 (56.2)

	 ALRC420CBC	

350	

414	

420	

88	

10.93 (27.8)	

16.50 (41.9)	

9.50 (24.1)	

8.20 (20.8)	

4.60 (11.7)	

124 (56.2)

	 ALRC480CBC	

400	

477	

480	

77	

10.93 (27.8)	

16.50 (41.9)	 10.13 (25.7)	

8.20 (20.8)	

4.60 (11.7)	

129 (58.5)

	 ALRC600CBC	

500	

590	

600	

61	

10.93 (27.8)	

16.50 (41.9)	 10.13 (25.7)	

8.20 (20.8)	

7.20 (18.3)	

190 (86.2)

* Motor HP and Amp rated at 480 volts.
50

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

3 (1.4)

S ECT I ON

5

INDUSTRIAL
CONTROL
TRANSFORMERS
Industrial Control Transformers provide
a low and safe control voltage for the
operation of electromagnetic devices, such
as motor starters, contactors, solenoids
and timers ... or other loads requiring
above average voltage regulation when
actuated.
Selection Steps ......................................................52
TA Series Open Core & Coil ...........................53-55
Primary & Secondary Fuse Information .............54-55
Selection Charts ................................................59-64
Wiring Diagrams & Dimensions ..............................65
W
NE

TB Series Open Core & Coil ...........................56-58
Primary & Secondary Fuse Information ..................57
Selection Charts ................................................59-64
Wiring Diagrams & Dimensions ..............................66
Harsh Environments Control Transformers .......67

W
NE

AE/CE Series Encapsulated Transformers ..... 68-75
Selection Charts .................................................70-73
FINGER/GUARD®
Industrial Control Transformer ...........................76-79
Selection Charts ......................................................77

Section 5_0412.indd 51

6/13/12 11:37 AM

SECTION

5

INDUSTRIAL CONTROL TRANSFORMERS

Selecting Industrial Control Transformers
To make the proper transformer selection,
the load must be completely analyzed...
which involves every electrically energized
component in the control circuit.
All electromagnetic control devices have
two current requirements; the first to
energize the coil; the second to maintain
the contact for a definite period of time.
The initial energizing of the coil, which
takes 5 to 20 milliseconds, requires many
times more current than normal. This is
referred to as volt-ampere inrush... which
is immediately followed by the sealed voltamperes—the amount of current required
to hold the contact in the circuit.

Easy, five step selection
1. Determine the voltage and frequency
of supply circuit: Example: 460 Volts,
60 Hz.
2. Determine the total inrush VA of the
control circuits from the manufacturer’s
data or the contactor data table. Do not
neglect the current requirements of
indicating lights and timing devices
that do not have an inrush VA but are
energized at the same time as the
other components in the circuit. Their
total VA should be added to the total
inrush VA.
3. Refer to the regulation data chart.
If the supply circuit voltage (Step 1)
is reasonably stable and fluctuates
no more than ± 5%, refer to the
90% Secondary Voltage column. If
it fluctuates as much as ± 10%, refer to
the 95% Secondary Voltage column.
Go down the column you have selected
until you arrive at the inrush VA closest
to, but not less than, the inrush VA of
your control circuit.
4. Read to the far left side of the chart
and you have selected the continuous
nominal VA rating of the transformer
needed. The secondary voltage that
will be delivered under inrush conditions
will be either 85%, 90%, or 95% of the
rated secondary voltage—depending
on the column selected from the
regulation data chart. The total sealed
VA of the control circuit must not exceed
the nominal VA rating of the transformer
selected from the manufacturer’s data
or the contactor’s data table.

52

Section 5_0412.indd 52

TABLE 1. Inrush VA
Inrush VA @ 20% & 40% Power Factor
Nominal
VA Rating

85% Secondary Voltage

90% Secondary Voltage

95% Secondary Voltage

20% P.F.

20% P.F.

40% P.F.

20% P.F.

40% P.F.

40% P.F.

50
75

362
579

224
354

289
462

179
283

217
345

134
211

100
150

839
1326

522
842

664
1003

413
637

489
679

304
431

250
300

3447
3894

2281
2618

2462
2812

1629
1890

1477
1731

977
1163

350
500

5418
6496

3689
4575

3870
4691

2635
3304

2322
2887

1581
2033

750

8377

5811

5913

4102

3449

2393

1000
1500

11329
25519

9005
18803

7789
18013

6191
13273

4248
10508

3377
7742

2000
3000

28178
34797

21600
28391

19372
24562

14850
20041

10566
14328

8100
11690

5000

138500

84542

100000

61058

61550

37574

TABLE 2. Typical Magnetic Motor Starter & Contactor Data ①
60 Hz, 120 Volt, 3-Pole
N.E.M.A. Size
Contactor

Allen
Bradley

500 Series
K Series

ASEA

Heavy
Duty Series

Furnas
General Electric
Joslyn Clark
Siemens-Allis
(formerly ITE Gould)
Square D
Westinghouse
Cutler
Hammer
(Citation
Line)

A1 Series
B1 Series

00
—

0
192

1
192

2

3

240

660

4

5

1225

A
2040

L
1490

110

96

VA Inrush

—

29

29

29

45

69

53

110

175

240

580

1000

15

20

22

31

43

65

98

VA Sealed

85

85

100

150

490

900

1200

VA Inrush

9

9

11.5

15

35

55

65

VA Sealed

218

218

218

218

310

957

1518

VA Inrush

25

25

25

25

26

75

116

VA Sealed

151

151

151

528

1152

1248

2580

VA Inrush

24

24

24

60

83

86

191

VA Sealed

210

210

210

210

724

880

1790

VA Inrush

18

18

18

18

30

39

295

VA Sealed

76

76

76

194

365

530

1630

VA Inrush

12

12

12

21

35

40

110

VA Sealed

165

245

245

311

700

1185

2970

VA Inrush

33

27

27

37

46

85

212

VA Sealed

160

160

160

160

625

625

1700

VA Inrush

25

25

25

25

50

50

180

VA Sealed

87

103

103

—

—

—

1158

VA Inrush

15

20

20

—

—

—

100

VA Sealed

102

103

103

140

390

1158

1158

VA Inrush

13

20

20

24

50

100

100

VA Sealed

1950

VA Sealed
VA Inrush

5. Refer to the specification tables on the following pages to select a transformer
according to the required continuous nominal VA and primary/secondary voltages.

① Data is most current at time of printing. Contact individual manufacturer for updates.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

TA Series Open Core & Coil
Industrial Control Transformers
Industrial control transformers are used to reduce
supply voltages to 230 V or lower for the operation
of electromagnetic devices such as contactors,
solenoids, relays, and timers. They are especially
designed to accommodate the momentary current
inrush caused when electromagnetic components
are energized... without sacrificing secondary
voltage stability beyond practical limits.
Acme Industrial Control Transformers are
dry-type, step-down transformers with the
secondary control circuit isolated from the primary
line circuit to assure maximum safety.

Primary Fuse Kit with Snap-on
Secondary Fuse Block

Jumper Link Connections

Secondary Fuse Clips

Integrally Mounted Fuse Blocks

Voltage regulation of Acme Industrial Control
Transformers exceeds standards recommended
by the National Electrical Manufacturers
Association. Secondary circuit voltage drop
between no-load and momentary overload
remains exceptionally low. This excellent
secondary circuit voltage regulation assures
reliable operation of electromagnetic
components and may permit the use of a smaller
and less expensive industrial control transformer.

FEATURES
■

■

Constructed with high quality silicon steel
lamination to minimize core losses and
increase efficiency.
Designs incorporate precision wound coils for
improved regulation.

■

Primary fuse blocks and secondary fuse kits
available and easily adaptable.

■

Series-parallel connecting links save wiring and
labor costs.

■

Sturdy phenolic terminal panel protects the coil
from foreign objects and mechanical damage.

■

Copper windings on all groups.

■

130°C Insulation class. 80°C temperature rise.

■

Wire retention on both primary and secondary
terminals.

■

Mounting plate adapts to various mounting
dimensions.

■

Voltage regulation exceeds NEMA requirements.

■

UL Listed, CSA Certified.

■

Attractive finish, nameplate, and design features
enhance the end product.

Acme Industrial Control Transformers Meet
or Exceed UL, CSA, NEMA & ANSI
Acme Industrial Control Transformers 50 through 5000 VA are UL
Listed, File E79947 and CSA certified, File 7357.

Laminations—High-permeability silicon steel continuously
annealed to minimize core losses.
Magnet Wire—Copper magnet wire is coated with high
temperature-resisting insulating film.
Coils—Precision wound by machine; total turns per coil
automatically counted.
Mounting—Heavy steel mounting plates add strength to core construction and provide firm mounting, slotted to facilitate installation.
Terminal Boards—Sturdy phenolic terminal boards.
Sizing Primary Fuses:
Primary Amps < 2, fuse size is 300% of rated primary current.
Primary Amps 2< 9, fuse size is 167% of rated primary current.
Primary Amps > 9, fuse size is 125% of rated primary current.
Sizing Secondary Fuses:
Secondary Amps < 9, fuse size is 167% of rated secondary current.
Secondary Amps > 9, fuse size is 125% of rated secondary current.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 53

53

6/13/12 11:37 AM

SECTION
SECTION

5

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

TA Series Primary Fuse Kits
Type PL112700 Through PL112705:
Using 2 Class CC Dual Element Fuses (not supplied)
■

Meets NEC Article 450 and UL-508 requirements.

■

For use with class “CC” fuses.

■

Eliminates remote mounting of primary overcurrent protection.

■

Covered by Acme Electric 10-year limited warranty.

INPUT
SUPPLY
LINE

Field installation is fast and easy. Simply loosen the mounting
hardware (Fig. 1), slide the bracket over the transformer and
re-tighten the mounting hardware. Make the proper connections
with the factory furnished jumpers (Fig. 2) and your unit is ready
for operation.

Y (H
AR
IM

SID

Y (H
AR

E)
SID

IM
PR

E)

PR

Y (X
AR

SID

E)

ND

Figure 2

CO
SE

Figure 1

Instructions for TA Series Primary Fuse Kit
Type PL112706 & PL112707: Using 2 Class CC Dual Element Fuses (3000-5000 VA)
1. To mount the primary fuse kit bracket, remove the two 1/4"
(.64 cm) sheet metal screws on the terminal panel on the
primary (H side) of the transformer.

4. Attach the female quick connect of the jumpers supplied
with the fuse kit to male quick connects on the right side
of the fuse blocks —one jumper to each of the blocks.

2. Place the slots in the fuse kit mounting bracket over the
holes in the terminal and mounting bracket. To secure the
fuse kit, reinsert the two 1/4" (.64 cm) sheet metal screws
and tighten securely.

5. Connect the ring terminal of the jumpers to the appropriate
screw terminals of the transformers primary (H side). Refer to
the transformer name plate for proper terminal connections.
6. Connect primary supply line leads to the screw terminals
on the left side of the block —one line lead to each of the
fuse blocks.

3. Tighten all mounting screws securely–this will secure the
mounting bracket.

IM

PR

Y (H
AR

E)
SID

Y (X
AR

CO

PR

E)
SID

IM

Y (H
AR

SID

E)
Y (X
AR

SID

E)

ND

O
EC

INPUT
SUPPLY
LINE

S

ND

SE

Primary Fuse Sizing Chart ①
VA
50
75
100
150
250
300
350
500
750
1000
1500
2000
3000
5000

120 V
1.2
1.9
2.5
3.8
3.5
4.0
5.0
7.0
10.0
15.0
20.0
25.0
30.0
––

208 V
0.6
1.0
1.5
2.0
3.5
4.0
5.0
4.0
6.0
8.0
12.0
12.0
20.0
30.0

230 V
0.6
1.0
1.3
2.0
3.5
4.0
4.5
3.5
5.5
7.0
12.0
15.0
20.0
30.0

240 V
0.6
1.0
1.3
1.9
3.0
3.5
4.0
3.5
5.0
7.0
12.0
15.0
20.0
30.0

277 V
0.6
0.8
1.0
1.5
3.0
3.0
4.0
5.5
4.5
6.0
10.0
12.0
15.0
25.0

380 V
0.3
0.6
0.8
1.2
2.0
2.5
2.5
4.0
6.0
4.5
7.0
9.0
15.0
20.0

416 V
0.3
0.6
0.8
1.2
1.8
2.5
2.5
3.5
5.5
4.0
6.0
8.0
12.0
15.0

440 V
0.3
0.6
0.6
1.0
1.8
2.0
2.5
3.5
5.0
3.5
6.0
8.0
12.0
15.0

460 V
0.3
0.5
0.6
1.0
1.5
2.0
2.0
3.5
5.0
3.5
5.5
7.5
12.0
15.0

480 V
0.3
0.5
0.6
1.0
1.5
1.9
2.0
3.0
5.0
3.5
5.5
7.0
12.0
15.0

550 V
0.3
0.4
0.6
0.8
1.4
1.5
1.9
3.0
4.0
5.5
5.0
6.0
10.0
12.0

600 V
0.3
0.4
0.5
0.8
1.2
1.5
1.8
2.5
4.0
5.0
4.5
6.0
9.0
15.0

① Fuse size based on time delay class CC fuses.
NOTE: Bold lines indicate changes in the percent of rated current used to calculate fuse sizes in accordance with article 450 of the NEC.
54

Section 5_0412.indd 54

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

TA Series Secondary Fuse Kits
Type PL112600, 601, 602: Use Dual Element Slow-Blow Fuse
■

Mount secondary fuse clips on terminals
X1 and F or F1 using the screws supplied
with the transformer.

■

Connect secondary load lines to terminals
X2 and F or F2.

■

Use dual-element slow-blowing fuses
such as Bussmann MFG., Fusetron Type
FNM, Littelfuse or Shawmut (not supplied
with fuse kits).

PL112600/601 Fuse Kit

PL112602 Fuse Kit

TA Series Instructions for Secondary Fuse Kit
Type PL112603: use dual element slow-blow fuse 13/32" x 1-1/2" (1.0 x 3.8 cm)
1. To attach secondary fuse kit PL-112603 to primary fuse
kits PL112700 thru PL112707 snap the secondary single
pole fuse block onto the unlabeled side of the primary
double pole fuse block. (See Figure 1)
2. Install the fuse kits as instructed under the primary fuse kit
instructions on page 54.

S
(X
RY

3. Select the appropriate pair of jumpers for making the
connections between the secondary fuse block and the
secondary (X-side) of the transformer.

SE

)
IDE

DA
ON

C

4. Connect the female quick-connect of the jumpers
supplied to one of the male quick-connects of the
secondary fuse block - one jumper to each end of
the fuse block. (See Figure 2)

Figure 2

5. Connect the ring terminal of the jumpers supplied
to screw terminals X1 and F or F1 on the secondary
(X-side) of the transformer.
6. Connect secondary load lines to terminals
X2 and F or F2.

Figure 1

Jumper Link Connections
Group A Series: 240 V parallel: 120 V
Group B Series: 480 V parallel: 240 V
Group F series: 230 V parallel: 115 V
Group I Series: 24 V parallel: 12 V
Group J Series: 480 V & 240 V: 240 V & 120 V
Group K Series: 240 V: 120 V

Exception: 150 VA transformer TA232404 does not have
quick connect terminals.

Parallel
Connection
Series
Connection

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 55

55

6/13/12 11:37 AM

SECTION
W
NE

5

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS
TB

TB Series Open Core & Coil
Industrial Control Transformers
Acme’s TB Series Industrial Control Transformers are especially
designed to accommodate the momentary current inrush
caused when electromagnetic components are energized...
without sacrificing secondary voltage stability beyond
practical limits.
Acme’s TB Series transformers are dry-type, step-down
transformers with the secondary control circuit isolated from
the primary line circuit to assure maximum safety.
Voltage regulation of Acme’s TB Series transformers
exceeds standards recommended by the National Electrical
Manufacturers Association. Secondary circuit voltage
drop between no-load and momentary overload remains
exceptionally low. This excellent secondary circuit voltage
regulation assures reliable operation of electromagnetic
components and may permit the use of a smaller and less
expensive industrial control transformer.

FEATURES & BENEFITS
■

600 volt class and below.

■

50–1000 VA, 50/60 Hz.

■

80°C temperature rise, 130°C insulation class.

■

Constructed with high quality silicon steel lamination to
minimize core losses and increase efficiency.

■

Designs incorporate precision split bobbin wound coils
for improved regulation.

■

Primary fuse blocks and secondary fuse kits available and
easily adaptable.

APPLICATIONS
■

Motor Starters

■

Contactors

■

Solenoids

■

Timer Circuits

■

Series-parallel connecting links save wiring and labor costs.

■

Relays

■

Terminal blocks allow full access for ring terminals for easy
installation even with solid strand conductors.

■

Control Panels

■

Robotics

■

Integrally molded terminal blocks with isolation barriers to
prevent arc over.

■

Footprint matches TA Series for easy interchangeability.

■

Copper windings on all groups.

■

Heavy gauge steel mounting plate adapts to various
mounting dimensions.

■

Voltage regulation exceeds NEMA requirements.

■

UL Listed and CSA Certified.

■

Meets or exceeds UL, CSA, NEMA, ANSI and
OSHA Standards.

■

Ten-year limited warranty.

56

Section 5_0412.indd 56

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

5

SECTION
W
NE

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS
TB

TB Series Primary Fuse Kits
Type PL112700 Through PL112705:
Using 2 Class CC Dual Element Fuses (not supplied)
■

Meets NEC Article 450 and UL-508 requirements.

■

For use with class “CC” fuses.

■

Eliminates remote mounting of primary
overcurrent protection.

■

Covered by Acme Electric 10-year
limited warranty.

Figure 1

Field installation is fast and easy. Simply loosen
the mounting hardware (Fig. 1), slide the bracket
over the transformer and re-tighten the mounting
hardware. Make the proper connections with the
factory furnished jumpers (Fig. 2) and your unit is
ready for operation.

Figure 2

Fuse Kit adds approximately
1.75” to height of unit.

Primary Fuse Sizing Chart ①
VA
50

120 V
1.2

208 V
0.6

230 V
0.6

240 V
0.6

277 V
0.6

380 V
0.3

416 V
0.3

440 V
0.3

460 V
0.3

480 V
0.3

550 V
0.3

600 V
0.3

75

1.9

1.0

1.0

1.0

0.8

0.6

0.6

0.6

0.5

0.5

0.4

0.4

100

2.5

1.5

1.3

1.3

1.0

0.8

0.8

0.6

0.6

0.6

0.6

0.5

150

3.8

2.0

2.0

1.9

1.5

1.2

1.2

1.0

1.0

1.0

0.8

0.8

250

3.5

3.5

3.5

3.0

3.0

2.0

1.8

1.8

1.5

1.5

1.4

1.2

300

4.0

4.0

4.0

3.5

3.0

2.5

2.5

2.0

2.0

1.9

1.5

1.5

350

5.0

5.0

4.5

4.0

4.0

2.5

2.5

2.5

2.0

2.0

1.9

1.8

500

7.0

4.0

3.5

3.5

5.5

4.0

3.5

3.5

3.5

3.0

3.0

2.5

750

10.0

6.0

5.5

5.0

4.5

6.0

5.5

5.0

5.0

5.0

4.0

4.0

1000

15.0

8.0

7.0

7.0

6.0

4.5

4.0

3.5

3.5

3.5

5.5

5.0

1500

20.0

12.0

12.0

12.0

10.0

7.0

6.0

6.0

5.5

5.5

5.0

4.5

2000

25.0

12.0

15.0

15.0

12.0

9.0

8.0

8.0

7.5

7.0

6.0

6.0

3000

30.0

20.0

20.0

20.0

15.0

15.0

12.0

12.0

12.0

12.0

10.0

9.0

5000

––

30.0

30.0

30.0

25.0

20.0

15.0

15.0

15.0

15.0

12.0

15.0

Secondary Fuse Sizing Chart
VA
50 VA

24 V
3.2

85 V
0.9

91 V
0.9

99 V
0.8

100 V
0.8

110 V
0.7

115 V
0.7

120 V
0.6

125 V
0.6

130 V
0.6

75 VA

5.0

1.4

1.2

1.2

1.2

1.0

1.0

1.0

1.0

0.8

100 VA

6.0

1.5

1.5

1.5

1.5

1.5

1.5

1.2

1.2

1.2

150 VA

10.0

2.5

2.5

2.5

2.5

2.0

2.0

2.0

2.0

1.5

250 VA

12.0

4.5

4.5

4.0

4.0

3.5

3.5

3.0

3.0

3.0

300 VA

15.0

5.5

5.5

5.0

5.0

4.5

4.5

4.0

4.0

3.5

350 VA

20.0

6.5

6.0

5.5

5.5

5.0

5.0

4.5

4.5

4.5

500 VA

25.0

9.0

9.0

8.0

8.0

7.0

7.0

6.0

6.0

6.0

750 VA

40.0

12.0

12.0

12.0

12.0

10.0

10.0

10.0

10.0

9.0

1000 VA

50.0

15.0

15.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

1500 VA

—

25.0

20.0

20.0

20.0

20.0

20.0

15.0

15.0

15.0

2000 VA

—

30.0

30.0

25.0

25.0

25.0

25.0

20.0

20.0

20.0

3000 VA

—

40.0

40.0

40.0

40.0

35.0

35.0

30.0

30.0

30.0

5000 VA

—

70.0

70.0

60.0

60.0

60.0

60.0

50.0

50.0

50.0

① Fuse size based on time delay class CC fuses.
NOTE: Bold lines indicate changes in the percent of rated current used to calculate fuse sizes in accordance with article 450 of the NEC.
ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 57

57

6/13/12 11:37 AM

SECTION
W
NE

5

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS
TB

TB Series Secondary Fuse Kits
Type PL79924, PL79930, & PL79931: Use Dual Element Slow-Blow Fuse
Catalog Number
PL79924*
PL79930
PL79931

VA
50-1000
50-350
500-1000

Type
1/4" x 1-1/4"
13/32" x 1-1/2"
13/32" x 1-1/2"

■

Mount secondary fuse clips on terminals X1 and F or F1
using the screws supplied with the transformer.

■

Connect secondary load lines to terminals X2 and F or F2.
Use Jumper Link to connect F1 and F2.

■

Use dual-element slow-blowing fuses such as Bussmann
MFG., Fusetron Type FNM, Littelfuse or Ferraz Shawmut
(not supplied with fuse kits).

Secondary
Fuse Kit

* PL79924: Use fuse kit on all transformers except 750 & 1000 VA
with 24 volt secondary.

W
NE

Instructions for TB Series Secondary Fuse Kit
Type PL112603: use dual element slow-blow fuse 13/32" x 1-1/2" (1.0 x 3.8 cm)
1.To attach secondary fuse kit PL 112603 to
primary fuse kits PL112700 thru PL112705
snap the secondary single pole fuse block
onto the unlabeled side of the primary double
pole fuse block. (See Figure 1)
2.Install the fuse kits as instructed under the
primary fuse kit instructions on page 54.
3.Select the appropriate pair of jumpers for
making the connections between the
secondary fuse block and the secondary
(X-side) of the transformer.

Figure 2

4.Connect the female quick-connect of the
jumpers supplied to one of the male quickconnects of the secondary fuse block—one
jumper to each end of the fuse block. (See
Figure 2)
5.Connect the ring terminal of the jumpers
supplied to screw terminals X1 and F or F1
on the secondary (X-side) of the transformer.
6.Connect secondary load lines to terminals
X2 and F or F2.

Figure 1

58

Section 5_0412.indd 58

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA &
SERIES
TB SERIES
OPEN
OPEN
CORE
CORE
& COIL
& COIL
INDUSTRIAL
INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

SELECTION CHARTS
W
NE

GROUP A
120 X 240 PRIMARY VOLTS—12/24 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO. ②

VA
RATING

OUTPUT
AMPS

APPROX. DIMENSIONS
Inches (Cm.)
C
D

F

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE SIZE
24 VOLTS

A

B

E

TB181141 ②

50

2.08

4.23
(10.7)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.13
(5.4)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

3 /10 amps

TB181142 ②

75

3.13

4.74
(12.0)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.61
(6.6)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

5 amps

TB181143 ②

100

4.17

4.90
(12.4)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.81
(7.1)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

6 /4 amps

TB181144 ②

150

6.25

4.78
(12.1)

3.75
(9.5)

3.40
(8.6)

3.13
(8.0)

2.63
(6.7)

.22 x .50
(0.6 x 1.3)

6
(2.7)

PL112701

10 amps

TB181146 ②

250

10.42

5.08
(12.9)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.05
(7.7)

.22 x .50
(0.6 x 1.3)

9
(4.1)

PL112702

15 amps

TB181148 ②

350

14.58

6.12
(15.5)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

4.06
(10.3)

.22 x .50
(0.6 x 1.3)

13
(5.9)

PL112702

20 amps

TB181149 ②

500

20.83

5.90
(15.0)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

4.19
(10.6)

.31 x .50
(0.8 x 1.3)

16
(7.3)

PL112704

30 amps

TB181150

750

31.25

7.53
(19.1)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

5.25
(13.3)

.31 x .50
(0.8 x 1.3)

24
(10.9)

PL112704

—

TB181151

1000

41.67

7.43
(18.9)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

3.81
(9.7)

.31 x .50
(0.8 x 1.3)

26
(11.8)

PL112705

—

2

1

GROUP B
240 X 480, 230 X 460, 220 X 440 PRIMARY VOLTS—120/115/110 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO. ②

VA
RATING

OUTPUT
AMPS
@ 120V

APPROX. DIMENSIONS
INCHES (CM.)
C
D

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE KIT ①
PART NO.

A

B

E

TB81210 ②

50

0.42

4.23
(10.7)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.13
(5.4)

TB81201 ②

75

0.63

4.74
(12.0)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

TB81211 ②

100

0.83

4.90
(12.4)

3.00
(7.6)

2.70
(6.8)

TB81212 ②

150

1.25

5.00
(12.7)

3.75
(9.5)

TB81213 ②

250

2.08

5.57
(14.1)

TB81200 ②

300

2.50

TB81214 ②

350

TB81215 ②

SECONDARY
FUSE SIZE
120 VOLTS

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

2.61
(6.6)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

1 amp

2.50
(6.4)

2.81
(7.1)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

11/4 amps

3.40
(8.6)

3.13
(8.0)

2.81
(7.1)

.22 x .50
(0.6 x 1.3)

6
(2.7)

PL112701

*

2 amps

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.13
(8.0)

.22 x .50
(0.6 x 1.3)

9
(4.1)

PL112702

*

3 2/10 amps

5.57
(14.1)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.13
(8.0)

.22 x .50
(0.6 x 1.3)

10
(4.5)

PL112702

*

4 amps

2.92

6.32
(16.1)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.83
(9.7)

.22 x .50
(0.6 x 1.3)

12
(5.4)

PL112702

*

4 1/2 amps

500

4.17

6.30
(16.0)

5.25
(13.3)

4.47
(11.4)

4.06
(10.3)

3.81
(9.7)

.22 x .50
(0.6 x 1.3)

15
(6.8)

PL112704

*

6 1/4 amps

TB81216 ②

750

6.25

6.65
(16.9)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

5.13
(13.0)

.31 x .50
(0.8 x 1.3)

23
(10.4)

PL112704

*

10 amps

TB81217 ②

1000

8.33

7.58
(19.3)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

3.69
(9.4)

.31 x .50
(0.8 x 1.3)

25
(11.3)

PL112705

*

12 amps

6/10

amp

① Secondary Fuse Kit PL112603 may be substituted for PL112600 thru PL112602 when Primary Fuse Kit is used. See page 58.
② See chart for integrally mounted fuse block catalog number suffix.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 59

59

6/13/12 11:37 AM

SECTION

5

GROUP B

TA &
SERIES
TB SERIES
OPEN
OPEN
CORE
CORE
& COIL
& COIL
INDUSTRIAL
INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

(CONTINUED)

240 X 480, 230 X 460, 220 X 440 PRIMARY VOLTS—120/115/110 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO. ②

VA
RATING

OUTPUT
AMPS
@ 120V

APPROX. DIMENSIONS
INCHES (CM.)
C
D

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE KIT ①
PART NO.

SECONDARY
FUSE SIZE
120 VOLTS

A

B

E

TA2-81218

1500

12.50

8.80
(22.4)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

5.75
(14.6)

.31 x .50
(0.8 x 1.3)

43
(19.5)

PL112705

PL112601

15 amps

TA2-81219

2000

16.67

9.25
(23.5)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

6.38
(16.2)

.31 x .50
(0.8 x 1.3)

49
(22.2)

PL112705

PL112601

20 amps

TA2-81220

3000

25.00

8.81
(22.4)

7.50
(19.1)

8.34
(21.2)

6.50
(16.5)

7.52
(19.1)

.41 x .81
(1.0 x 2.1)

70
(31.8)

PL112706

—

—

TA281221

5000

41.67

7.52
(19.1)

11.92
(30.3)

9.49
(24.1)

6.75
(17.1)

6.25
(15.9)

.41 x .81
(1.0 x 2.1)

125
(56.7)

PL112707

—

—

* See fusing chart for secondary fuse kits.

Integrally Mounted Fuse Blocks Available:
(See Chart)

ADD SUFFIX
TO CATALOG NO.

GROUP ‘A’ THROUGH 500 VA
GROUP ‘B’ THROUGH 2000 VA

CONFIGURATION

F2

Factory installed integrally mounted 2-pole primary block

F3

Factory installed integrally mounted 3-pole primary and
secondary block (100 VA & larger)

F4

Factory installed 2-pole primary block and secondary
fuse clips (50 & 75 VA)

Consult factory for other sizes available.

GROUP C
240/480/600, 230/460/575, 220/440/550 PRIMARY VOLTS—120/100, 115/95, 110/90 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO.

VA
RATING

OUTPUT
AMPS
@ 120V

APPROX. DIMENSIONS
INCHES (CM.)
C
D

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE KIT ①
PART NO.

A

B

E

TB81000

50

0.42

4.56
(11.6)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.61
(6.6)

TB81009

75

0.63

4.90
(12.4)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

TB81001

100

0.83

5.36
(13.6)

3.00
(7.6)

2.70
(6.8)

TB81002

150

1.25

5.00
(12.7)

3.75
(9.5)

TB81003

250

2.08

5.57
(14.1)

TB81020

300

2.50

TB81004

350

TB81005

SECONDARY
FUSE SIZE
120 VOLTS

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

2.81
(7.1)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

1 amp

2.50
(6.4)

3.26
(8.3)

.22 x .50
(0.6 x 1.3)

5
(2.3)

PL112700

*

11/4 amps

3.40
(8.6)

3.13
(8.0)

3.06
(7.8)

.22 x .50
(0.6 x 1.3)

7
(3.2)

PL112701

*

2 amps

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.50
(8.9)

.22 x .50
(0.6 x 1.3)

11
(5.0)

PL112702

*

3 2/10 amps

6.48
(16.5)

4.65
(11.8)

4.15
(10.5)

4.06
(10.3)

4.06
(10.3)

.22 x .50
(0.6 x 1.3)

15
(6.8)

PL112702

*

4 amps

2.92

6.48
(16.5)

4.65
(11.8)

4.15
(10.5)

4.06
(10.3)

4.06
(10.3)

.22 x .50
(0.6 x 1.3)

15
(6.8)

PL112702

*

4 1/2 amps

500

4.17

6.43
(16.3)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

4.56
(11.6)

.31 x .50
(0.8 x 1.3)

21
(9.5)

PL112704

*

6 1/4 amps

TB81006

750

6.25

7.19
(18.3)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

3.81
(9.7)

.31 x .50
(0.8 x 1.3)

25
(11.3)

PL112705

*

10 amps

TB81007

1000

8.33

7.96
(20.2)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

4.63
(11.8)

.31 x .50
(0.8 x 1.3)

32
(14.5)

PL112705

*

12 amps

TA281008

1500

12.50

9.46
(24.0)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

6.38
(16.2)

.31 x .50
(0.8 x 1.3)

47
(21.3)

PL112705

PL112601

15 amps

TA253929

2000

16.67

7.90
(20.1)

7.50
(19.1)

7.66
(19.5)

6.50
(16.5)

6.57
(16.7)

.41 x .81
(1.0 x 2.1)

55
(24.9)

PL112706

PL112601

20 amps

TA253930

3000

25.00

7.02
(17.8)

11.92
(30.3)

8.83
(22.4)

6.75
(17.1)

5.75
(14.6)

.41 x .81
(1.0 x 2.1)

75
(34.0)

PL112707

—

—

TA253931

5000

41.67

7.52
(19.1)

11.92
(30.3)

9.49
(24.1)

6.75
(17.1)

6.25
(15.9)

.41 x .81
(1.0 x 2.1)

110
(49.9)

PL112707

—

—

6/10

amp

* See fusing chart for secondary fuse kits.

① Secondary Fuse Kit PL-112603 may be substituted for PL112600 thru PL112602 when Primary Fuse Kit is used. See page 58.
② See chart for integrally mounted fuse block catalog number suffix.
60

Section 5_0412.indd 60

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA &
SERIES
TB SERIES
OPEN
OPEN
CORE
CORE
& COIL
& COIL
INDUSTRIAL
INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

GROUP D
208/240/277/380/480 PRIMARY VOLTS—24 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO.

VA
RATING

OUTPUT
AMPS

APPROX. DIMENSIONS
INCHES (CM.)
C
D

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE KIT ①
PART NO.

SECONDARY
FUSE SIZE
24 VOLTS

A

B

E

TB81321

50

2.08

4.08
(10.4)

3.75
(9.5)

3.40
(8.6)

3.13
(8.0)

2.19
(5.6)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112701

*

3 2/10 amp

TB81322

75

3.13

4.31
(10.9)

3.75
(9.5)

3.40
(8.6)

3.13
(8.0)

2.31
(5.9)

.22 x .50
(0.6 x 1.3)

5
(2.3)

PL112701

*

5 amps

TB81323

100

4.17

4.52
(11.5)

3.75
(9.5)

3.40
(8.6)

3.13
(8.0)

2.63
(6.7)

.22 x .50
(0.6 x 1.3)

5
(2.3)

PL112701

*

6 1/4 amps

TB81324

150

6.25

4.75
(12.1)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.05
(7.7)

.22 x .50
(0.6 x 1.3)

9
(4.1)

PL112702

*

10 amps

TB81325

250

10.42

5.24
(13.3)

4.65
(11.8)

4.15
(10.5)

4.06
(10.3)

3.25
(8.3)

.22 x .50
(0.6 x 1.3)

11
(5.0)

PL112702

*

15 amps

TB81326

350

14.58

6.02
(15.3)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

4.00
(10.2)

.31 x .50
(0.8 x 1.3)

18
(8.2)

PL112704

*

20 amps

TB81327

500

20.83

6.51
(16.5)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

4.19
(10.6)

.31 x .50
(0.8 x 1.3)

19
(8.6)

PL112704

*

30 amps

TB81328

750

31.25

7.08
(18.0)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

3.81
(9.7)

.31 x .50
(0.8 x 1.3)

26
(11.8)

PL112705

*

—
33 amps

TB81329

1000

41.67

8.10
(20.6)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

4.63
(11.8)

.31 x .50
(0.8 x 1.3)

33
(15.0)

PL112705

*

—

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE KIT ①
PART NO.

SECONDARY
FUSE SIZE
115 VOLTS

* See fusing chart for secondary fuse kits.

GROUP E
208/277/380 PRIMARY VOLTS—115/95 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO.

VA
RATING

OUTPUT
AMPS
@ 115V

APPROX. DIMENSIONS
INCHES (CM.)
C
D

A

B

E

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

TB81301

50

0.43

4.35
(11.0)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.61
(6.6)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

TB81302

75

0.65

4.74
(12.0)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.81
(7.1)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

1 amp

TB81303

100

0.87

4.45
(11.3)

3.75
(9.5)

3.40
(8.6)

3.13
(8.0)

2.44
(6.2)

.22 x .50
(0.6 x 1.3)

5
(2.3)

PL112701

*

11/4 amps

TB81304

150

1.30

5.00
(12.7)

3.75
(9.5)

3.84
(9.8)

3.13
(8.0)

3.06
(7.8)

.22 x .50
(0.6 x 1.3)

5
(2.3)

PL112701

*

2 amps

TB81305

250

2.17

5.68
(14.4)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

4.06
(10.3)

.22 x .50
(0.6 x 1.3)

13
(5.9)

PL112702

*

3 1/2 amps

TB81306

350

3.04

6.30
(16.0)

4.65
(11.8)

4.15
(10.5)

4.06
(10.3)

4.75
(12.1)

.22 x .50
(0.6 x 1.3)

18
(8.2)

PL112702

*

5 amps

TB81307

500

4.35

6.22
(15.8)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

4.56
(11.6)

.22 x .50
(0.6 x 1.3)

20
(9.1)

PL112704

*

7 amps

TB81308

750

6.52

6.82
(17.3)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

3.69
(9.4)

.31 x .50
(0.8 x 1.3)

24
(10.9)

PL112705

*

10 amps

TB81309

1000

8.70

7.96
(20.2)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

4.44
(11.3)

.31 x .50
(0.8 x 1.3)

31
(14.1)

PL112705

*

12 amps

6/10

amp

* See fusing chart for secondary fuse kits.

① Secondary Fuse Kit PL112603 may be substituted for PL112600 thru PL112602 when Primary Fuse Kit is used. See page 58.
② See chart for integrally mounted fuse block catalog number suffix.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 61

61

6/13/12 11:37 AM

5

SECTION

TA &
SERIES
TB SERIES
OPEN
OPEN
CORE
CORE
& COIL
& COIL
INDUSTRIAL
INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

GROUP F
380/440/550/600 PRIMARY VOLTS—115/230 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO.

APPROX. DIMENSIONS
INCHES (CM.)
C
D

VA
RATING

OUTPUT
AMPS
@ 115V

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE SIZE ②
115 VOLTS

A

B

E

F

TA254535

50

0.43

4.12
(10.5)

3.75
(9.5)

3.21
(8.2)

3.13
(8.0)

2.19
(5.6)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112701

TA254536

100

0.87

4.56
(11.6)

3.75
(9.5)

3.21
(8.2)

3.13
(8.0)

2.31
(5.9)

.22 x .50
(0.6 x 1.3)

5
(2.3)

PL112701

11/4 amps

TA254537

150

1.30

5.00
(12.7)

3.75
(9.5)

3.21
(8.2)

3.13
(8.0)

3.06
(7.8)

.22 x .50
(0.6 x 1.3)

10
(4.5)

PL112701

2 amps

TA254538

250

2.17

5.49
(13.9)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.50
(8.9)

.22 x .50
(0.6 x 1.3)

11
(5.0)

PL112702

3 1/2 amps

TA281197

350

3.04

6.03
(15.3)

4.88
(12.4)

4.15
(10.5)

4.06
(10.3)

4.38
(11.1)

.22 x .50
(0.6 x 1.3)

17
(7.7)

PL112703

5 amps

TA254539

500

4.35

6.76
(17.1)

4.88
(12.4)

4.15
(10.5)

4.06
(10.3)

5.75
(14.6)

.22 x .50
(0.6 x 1.3)

23
(10.4)

PL112703

7 amps

TA281240

750

6.52

7.19
(18.3)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

3.69
(9.4)

.31 x .50
(0.8 x 1.3)

25
(11.3)

PL112705

10 amps

TA281241

1000

8.70

7.77
(19.7)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

4.44
(11.3)

.31 x .50
(0.8 x 1.3)

30
(13.6)

PL112705

12 amps

6/10

amp

GROUP G
240/416/480/600; 230/400/460/575; 220/380/440/550; 208/500 PRIMARY VOLTS
99/120/130; 95/115/125; 91/110/120; 85/100/110 SECONDARY VOLTS —1Ø, 50/60 Hz
APPROX. DIMENSIONS
INCHES (CM.)
C
D
E

CATALOG
NO.

VA
RATING
@ 130V

OUTPUT
AMPS

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE KIT
PART NO.

A

B

TB32403

50

0.38

4.08
(10.4)

3.75
(9.5)

3.40
(8.6)

3.13
(8.0)

2.31
(5.9)

TB32404

150

1.15

4.75
(12.1)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

TB32405

250

1.92

5.58
(14.2)

4.65
(11.8)

4.15
(10.5)

TB32669

350

2.69

6.23
(15.8)

4.65
(11.8)

TB32406

500

3.85

6.40
(16.3)

TB54523

750

5.77

TB54524

1000

TA254525

SECONDARY
FUSE SIZE
130 VOLTS

.22 x .50
(0.6 x 1.3)

5
(2.3)

PL112701

NA

3.05
(7.7)

.22 x .50
(0.6 x 1.3)

10
(4.5)

PL112702

NA

16/10 amps

4.06
(10.3)

4.06
(10.3)

.22 x .50
(0.6 x 1.3)

16
(7.3)

PL112702

NA

3 2/10 amps

4.15
(10.5)

4.06
(10.3)

5.50
(14.0)

.22 x .50
(0.6 x 1.3)

22
(10.0)

PL112702

NA

4 amps

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

3.69
(9.4)

.22 x .50
(0.6 x 1.3)

23
(10.4)

PL112705

NA

6 1/4 amps

7.08
(18.0)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

4.13
(10.5)

.31 x .50
(0.8 x 1.3)

29
(13.2)

PL112705

NA

9 amps

7.69

8.56
(21.7)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

4.88
(12.4)

.31 x .50
(0.8 x 1.3)

35
(15.9)

PL112705

NA

12 amps

1500

11.54

6.75
(17.1)

7.50
(19.1)

7.66
(19.5)

6.50
(16.5)

5.42
(13.8)

.41 x .81
(1.0 x 2.1)

55
(24.9)

PL112706

PL-112601

20 amps

TA281202

2000

15.39

7.45
(18.9)

7.50
(19.1)

7.66
(19.5)

6.50
(16.5)

6.12
(15.5)

.41 x .81
(1.0 x 2.1)

55
(24.9)

PL112706

PL-112601

25 amps

TA281203

3000

23.08

7.02
(17.8)

11.92
(30.3)

8.83
(22.4)

6.75
(17.1)

5.75
(14.6)

.41 x .81
(1.0 x 2.1)

70
(31.8)

PL112707

—

—

TA281205

5000

38.46

7.52
(19.1)

11.92
(30.3)

9.49
(24.1)

6.75
(17.1)

6.25
(15.9)

.41 x .81
(1.0 x 2.1)

110
(49.9)

PL112707

—

—

6/10

amp

① Secondary Fuse Kit PL112603 may be substituted for PL112600 thru PL112602 when Primary Fuse Kit is used. See page 58.
② Secondary fuse kit application for 115V only.

62

Section 5_0412.indd 62

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA &
SERIES
TB SERIES
OPEN
OPEN
CORE
CORE
& COIL
& COIL
INDUSTRIAL
INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

CONNECTION DETAILS FOR GROUP G
CONNECT TO LINE FOR RESPECTIVE VOLTAGE

OUTPUT VOLTS

H1-H2

H1-H3

H1-H4

H1-H5

X1-X2

X1-X3

X1-X4

208

––

––

500

85

100

110

220

380

440

550

91

110

120

230

400

460

575

95

115

125

240

416

480

600

99

120

130

GROUP H
208/230/460 PRIMARY VOLTS—115 SECONDARY VOLTS—1Ø, 50/60 Hz
CATALOG
NO.

APPROX. DIMENSIONS
INCHES (CM.)
C
D

VA
RATING

OUTPUT
AMPS

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

SECONDARY
FUSE KIT ①
PART NO.

A

B

E

TB69300

50

0.43

4.44
(11.3)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

2.61
(6.6)

TB69301

100

0.87

5.21
(13.2)

3.00
(7.6)

2.70
(6.8)

2.50
(6.4)

TB69302

150

1.30

5.10
(13.0)

3.75
(9.5)

3.40
(8.6)

TB69303

250

2.17

5.38
(13.7)

4.50
(11.4)

TB69304

350

3.04

5.90
(15.0)

TB69305

500

4.35

TB69306

750

TB69307

1000

SECONDARY
FUSE SIZE
115 VOLTS

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

3.26
(8.3)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

*

1 4/10 amps

3.13
(8.0)

3.06
(7.8)

.22 x .50
(0.6 x 1.3)

7
(3.2)

PL112701

*

2 amps

3.84
(9.8)

3.75
(9.5)

3.50
(8.9)

.22 x .50
(0.6 x 1.3)

11
(5.0)

PL112702

*

3 1/2 amps

4.65
(11.8)

4.15
(10.5)

4.06
(10.3)

3.81
(9.7)

.22 x .50
(0.6 x 1.3)

15
(6.8)

PL112702

*

5 amps

6.22
(15.8)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

4.56
(11.6)

.31 x .50
(0.8 x 1.3)

20
(9.1)

PL112704

*

7 amps

6.52

6.82
(17.3)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

3.81
(9.7)

.31 x .50
(0.8 x 1.3)

26
(11.8)

PL112705

*

10 amps

8.70

7.96
(20.2)

6.75
(17.1)

5.78
(14.7)

5.75
(14.6)

4.63
(11.8)

.31 x .50
(0.8 x 1.3)

33
(15.0)

PL112705

*

12 amps

6/10 amp

* See fusing chart for secondary fuse kits.

GROUP I
600 PRIMARY VOLTS—12/24 SECONDARY VOLTS—1Ø, 60 Hz
APPROX. DIMENSIONS
INCHES (CM.)
C
D

CATALOG
NO.

VA
RATING

OUTPUT
AMPS
@ 12V

F

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

A

B

E

TA83300

50

4.17

4.13
(10.5)

3.00
(7.6)

2.59
(6.6)

2.50
(6.4)

2.30
(5.8)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

TA83301

100

8.33

4.90
(12.4)

3.00
(7.6)

2.59
(6.6)

2.50
(6.4)

3.35
(8.5)

.22 x .50
(0.6 x 1.3)

4
(1.8)

PL112700

TA83302

150

12.50

4.92
(12.5)

3.75
(9.5)

3.21
(8.2)

3.13
(8.0)

2.81
(7.1)

.22 x .50
(0.6 x 1.3)

6
(2.7)

PL112701

TA83303

250

20.83

5.38
(13.7)

4.50
(11.4)

3.84
(9.8)

3.75
(9.5)

3.05
(7.7)

.22 x .50
(0.6 x 1.3)

9
(4.1)

PL112702

TA83304

500

41.67

6.06
(15.4)

4.88
(12.4)

4.15
(10.5)

4.06
(10.3)

4.06
(10.3)

.22 x .50
(0.6 x 1.3)

13
(5.9)

PL112703

TA83305

750

62.50

6.43
(16.3)

5.25
(13.3)

4.47
(11.4)

4.38
(11.1)

4.00
(10.2)

.31 x .50
(0.8 x 1.3)

21
(9.5)

PL112704

TA83306

1000

83.33

7.30
(18.5)

6.75
(17.1)

5.72
(14.5)

5.75
(14.6)

3.69
(9.4)

.31 x .50
(0.8 x 1.3)

24
(10.9)

PL112705

① Secondary Fuse Kit PL112603 may be substituted for PL112600 thru PL112602 when Primary Fuse Kit is used. See page 58.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 63

63

6/13/12 11:37 AM

SECTION

5

TA &
SERIES
TB SERIES
OPEN
OPEN
CORE
CORE
& COIL
& COIL
INDUSTRIAL
INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

GROUP J
240 X 480 PRIMARY VOLTS—120/240 SECONDARY VOLTS—1Ø, 60 Hz
CATALOG
NO.

VA
RATING

OUTPUT
AMPS
@ 120V

TB83210

50

0.42

TB83212

100

0.83

TB83213

150

1.25

TB83215

250

2.08

TB83218

500

4.17

TB83219

750

6.25

TB83220

1000

8.33

TA83221

1500

12.50

TA83222

2000

16.67

TA83223

3000

25.00

TA83224

5000

41.67

A
4.13
(10.5)
4.90
(12.4)
4.92
(12.5)
5.38
(13.7)
6.06
(15.4)
6.43
(16.3)
7.34
(18.6)
8.80
(22.4)
9.15
(23.2)
7.00
(17.8)
7.06
(17.9)

B
3.00
(7.6)
3.00
(7.6)
3.75
(9.5)
4.50
(11.4)
5.25
(13.3)
5.25
(13.3)
6.75
(17.1)
6.75
(17.1)
6.75
(17.1)
7.50
(19.1)
11.92
(30.3)

APPROX. DIMENSIONS
INCHES (CM.)
C
D

2.70
(6.8)
2.70
(6.8)
3.40
(8.6)
3.84
(9.8)
4.47
(11.4)
4.47
(11.4)
5.78
(14.7)
5.72
(14.5)
5.72
(14.5)
7.66
(19.5)
8.75
(22.2)

2.50
(6.4)
2.50
(6.4)
3.13
(8.0)
3.75
(9.5)
4.06
(10.3)
4.38
(11.1)
5.75
(14.6)
5.75
(14.6)
5.75
(14.6)
6.50
(16.5)
6.75
(17.1)

E
2.30
(5.8)
3.35
(8.5)
2.81
(7.1)
3.05
(7.7)
4.06
(10.3)
5.30
(13.0)
3.69
(9.4)
5.02
(12.8)
5.42
(13.8)
5.55
(14.1)
5.75
(14.6)

F
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.31 x .50
(0.8 x 1.3)
.31 x .50
(0.8 x 1.3)
.31 x .50
(0.8 x 1.3)
.31 x .50
(0.8 x 1.3)
.41 x .81
(1.0 x 2.1)
.41 x .81
(1.0 x 2.1)

APPROX.
SHIP WEIGHT
LBS. (KG.)

PRIMARY
FUSE BLOCK
PART NO.

4
(1.8)
4
(1.8)
6
(2.7)
9
(4.1)
13
(5.9)
21
(9.5)
24
(10.9)
43
(19.5)
48
(21.8)
51
(23.1)
90
(40.8)

PL112700

APPROX.
SHIP WEIGHT
LBS. (KG.)
4
(1.8)

PRIMARY
FUSE BLOCK
PART NO.
PL112700

4
(1.8)
6
(2.7)
9
(4.1)
13
(5.9)
21
(9.5)
24
(10.9)

PL112700

PL112700
PL112701
PL112702
PL112704
PL112704
PL112705
PL112705
PL112705
PL112706
PL112707

GROUP K
600 PRIMARY VOLTS—120/240 SECONDARY VOLTS—1Ø, 60 Hz
CATALOG
NO.

VA
RATING

TA3310

50

OUTPUT
AMPS
@ 120V
0.42

TA83311

100

0.83

TA83312

150

1.25

TA83313

250

2.08

TA83314

500

4.17

TA83315

750

6.25

TA83316

1000

8.33

A
4.13
(10.5)
4.90
(12.4)
4.92
(12.5)
5.38
(13.7)
6.06
(15.4)
6.43
(16.3)
7.34
(18.6)

B
3.00
(7.6)
3.00
(7.6)
3.75
(9.5)
4.50
(11.4)
4.88
(12.4)
5.25
(13.3)
6.75
(17.1)

APPROX. DIMENSIONS
INCHES (CM.)
C
D
2.59
2.50
(6.6)
(6.4)

2.59
(6.6)
3.21
(8.2)
3.84
(9.8)
4.15
(10.5)
4.47
(11.4)
5.72
(14.5)

2.50
(6.4)
3.13
(8.0)
3.75
(9.5)
4.06
(10.3)
4.38
(11.1)
5.75
(14.6)

E
2.30
(5.8)
3.35
(8.5)
2.81
(7.1)
3.05
(7.7)
4.06
(10.3)
4.00
(10.2)
3.69
(9.4)

F
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.22 x .50
(0.6 x 1.3)
.31 x .50
(0.8 x 1.3)
.31 x .50
(0.8 x 1.3)

PL112701
PL112702
PL112703
PL112704
PL112705

* See fusing chart for secondary fuse kits.

TA & TB SERIES PROTECTIVE DEVICES –
Primary Fuse Kits
FUSES ARE NOT INCLUDED. CONSULT CATALOG FOR
PROPER FUSE SELECTION.

CATALOG NO.

APPROX. SHIP WEIGHT Lbs. (Kg.)

TA SERIES PROTECTIVE DEVICES – Secondary Fuse Kits
FOR USE WITH INDUSTRIAL CONTROL TRANSFORMERS THROUGH 1500 VA.

CATALOG NO.

APPROX. SHIP WEIGHT Lbs. (Kg.)

PL112600

0.5 (0.2)

PL112700

1 (0.5)

PL112601

0.5 (0.2)

PL112701

1 (0.5)

PL112602

1 (0.5)

PL112702

1 (0.5)

PL112603

1 (0.5)

PL112703

1 (0.5)

PL112704

1 (0.5)

PL112705

1 (0.5)

CATALOG NO.

VA

DESCRIPTION

APPROX. SHIPPING WT.
(LBS./ KG.)

PL112706

1 (0.5)

PL112707

1 (0.5)

PL79924
PL79928
PL79929
PL79930
PL79931

50 – 350
500 & 750
50 – 350
500 & 1000

Fuse Kit: Secondary Fuse 1/4" x 1-1/4" w/ARM
Link: Small Jumper Links (Qty. 2)
Link: Large Jumper Links (Qty. 2)
Fuse Kit: Secondary Fuse Midget w/ARM
Fuse Kit: Secondary Fuse Midget w/ARM

1.0 (0.5)
1.0 (0.5)
1.0 (0.5)
1.0 (0.5)
1.0 (0.5)

64

Section 5_0412.indd 64

TB SERIES PROTECTIVE DEVICES– Secondary Fuse Kits

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

5

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

TA Series Open Core & Coil Wiring Diagrams
Group A

Group B
120V

240V
H1 H3 H2 H4
H1

H1 H3

240V
230
220

H1 H3 H2 H4

H2 H4

H2

H3

Group C

480V
460
440
H4

H1

H1 H3

H2

H4

240V
230
220

24V
X2

X1

X2

600V
575
550

H1

H2

H5

600V
550V
H3
440V
380V H2

380V
277V

H1

95V

H2

X2

X4 X2 X3

X1 X4 X2

X1

X3

600V

X4

X2

X4 X2 X3

X1 X4 X2

X3

X1
X3 X1

12V

24V

460V

X3

H3

H2

115V
X2

X1

X1

X2

Group K
240V

480V

H2

H4

230V

99V
95
91
85

120V
115
130V 110
125 100
120
110

115V

Group J

H1

H4

208V

X1
X3 X1

X4

Group I

H3

480V
460
416V 440
400
380

240V
230
220
208

115V
X3

Group H
H1

X4

230V

X1

X1

H4

208V

X2

H3
H2

24V

Group G

H1

H4

H3

H5
H4

120V
115
110

X1

Group F

H6

480V
380V
277V
240V
208V

X2

X3

Group E

H1

100V
95
90

X2

120V
115
110

H4

H3

480V
460
440

H2 H4

H2

H3

H1

Group D

H1 H3 H2 H4

H1 H3

H1

H3

H2

H4

X4

X2

X3

X1

X4 X2 X3

X1 X4 X2

240V

H2

H1

H2 H4

X3 X1

600V

X4

X2

X4 X2 X3

X1 X4 X2

240V

120V

X3

X1
X3 X1

120V

TA Series Open Core & Coil Dimensional Drawings
50 VA Thru 2 kVA
C

3 & 5 kVA
C

B

E

A

A

E

F
D

F

D
B

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 65

65

6/13/12 11:37 AM

SECTION

5

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS
TB

TB Series Open Core & Coil Wiring Diagrams
Group A

Group B

120V

480V
460
440

H1 H3

240V

H2 H4

H1

H1 H3 H2 H4

H3

H4

H2

H1 H3 H2 H4
H1

X4

X2

X4 X2

X3

H4

480V
460
440

240V
230
220

H3

380V
240V
230
220
208

120V
115
130V 110
125 100
120
110

Group J

115V
X3

X1

X4

X3

X2

240V

480V

460V
230V

99V
95
91
85

X1

H4

208V

95V
X2

H3
H2

X1

H4

480V
460
416V 440
400
380

277V

H5
H4

24V

Group H

H2

H6

480V
380V
277V
240V
208V

X2

H1

208V

H1

120V
115
110

X1

H1

600V
575
550

100V
95
90

X3

H4

H3

H4

H3

X2

Group G

H2

H2

H2 H4

H2

X2

Group E
H1

H1

120V
115
110

X1

24V

12V

H1 H3

H3

X1

X3 X1 X4 X2 X3

Group D

Group C
240V
230
220

H1 H3

H3

H2

X4

X2

X3

X4 X2 X3

X1 X4 X2

H2 H4
H4

H3

H2

115V
X2

H1 H3 H2 H4
H1

X1

240V

X1
X3 X1

120V

X1

TB Series Open Core & Coil Dimensional Drawings
B

D

C
A

E

F

66

Section 5_0412.indd 66

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION
SECTION

5

TAINDUSTRIAL
SERIES OPEN CORE
CONTROL
& COIL TRANSFORMERS
INDUSTRIAL CONTROL TRANSFORMERS

Industrial Control Transformers for
Harsh Environments
Designed for Control Panels where Internal
Installation of Control Transformers is prohibited.
Some specifications require installation of large control transformers, usually 1000 to
5000 VA outside the control cabinet. This means the transformer must be in a sheet
metal enclosure instead of the usual open core and coil construction method.
Acme meets this need by providing all of the power, protection, regulation and
performance of our standard industrial control transformers in one UL -3R enclosure.
These transformers are wound with copper magnet wire, deliver full nameplate
capacity, and provide the high regulation required in control applications.
Voltage combinations available are: 240 x 480V primary, 120V secondary and
240/480/600V primary, 120/100V secondary. Ratings available are 1000, 2000, 3000
and 5000 VA. All units are UL listed, CSA certified, and covered by Acme’s exclusive
10-year limited warranty.

FEATURES
■
■
■
■
■
■
■
■

Fully encapsulated and enclosed.
55°C temperature rise, 155°C insulation.
Copper windings.
1000, 2000, 3000, 5000 and 10000 VA sizes.
Voltage regulation exceeds NEMA requirements.
UL and UL-3R listed.
CSA certified.
10-year limited warranty.

GROUP L
240 x 480 PRIMARY VOLTS—120 SECONDARY VOLTS ③—1Ø, 50/60 Hz
APPROX. DIMENSIONS
INCHES (CM.)
H
W
D

APPROX. SHIP
WEIGHT
LBS. (KG.)

ELECTRICAL
CONNECTION
DIAGRAM ① ②

7.13
(18.1)

55
(24.9)

B

10.31
(26.2)

7.13
(18.1)

80
(36.3)

B

14.77
(37.5)

10.31
(26.2)

7.13
(18.1)

100
(45.4)

B

41.67

13.85
(35.2)

13.25
(33.7)

10.19
(25.9)

140
(63.5)

B

83.3

16.47
(41.8)

13.88
(35.3)

12.94
(32.9)

308
(139.7)

B

CATALOG
NO.

VA
RATING

OUTPUT
AMPS

T181217

1000

8.33

13.10
(33.3)

10.31
(26.2)

T181219

2000

16.67

14.77
(37.5)

T181220

3000

25.00

T181221

5000

T181223

10000

D

H

GROUP M
W

240/480/600 PRIMARY VOLTS—120/100 Secondary Volts ③—1Ø, 50/60 Hz
CATALOG
NO.
T153929

VA
RATING
2000

OUTPUT
AMPS
16.67

T153930

3000

25.00

T153931

5000

41.67

APPROX. DIMENSIONS
INCHES (CM.)
H
W
D
14.77
10.31
7.13
(37.5)
(26.2)
(18.1)
13.85
13.25
10.19
(35.2)
(33.7)
(25.9)
13.85
13.25
10.19
(35.2)
(33.7)
(25.9)

APPROX. SHIP
WEIGHT
LBS. (KG.)
80
(36.3)
130
(59.0)
140
(63.5)

ELECTRICAL
CONNECTION
DIAGRAM ① ②

C

Encapsulated
1000 VA–10000 VA

C
C

① See page 70 for electrical diagram.
② See page 58 for fuse sizing information.
③ For secondary fuse size, multiply output amps x 1.25.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 67

67

6/13/12 11:37 AM

SECTION

5

TA SERIES
AE/CE
SERIES
OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

AE/CE Series Industrial Control Transformers
The Acme Electric AE and CE Series Industrial Control
Transformers are designed specifically for machine tool
control circuit applications. These transformers have
the ability to handle potentially damaging high in-rush
currents that occur when electromagnetic components are
energized, without sacrificing the required stable output
voltage. Designed to meet or exceed the demands of
international standards, combined with the full breadth
of product offering, the AE and CE Series Transformers
from Acme Electric are the ideal solution for your industrial
control applications.

Cooler. Cleaner. More Compact.

FEATURES & BENEFITS
■

Epoxy encapsulated design protects core & coil assembly
from potentially damaging contaminants.

■

Integrally molded terminal blocks with isolation barriers to
prevent arc over, terminal blocks allow full access for ring
terminals for easy installation and solid termination.

■

Heavy gauge steel mounting feet.

■

Available factory or field installed fuse blocks provide
integral fusing on the primary or primary and secondary.

■

Dual labeling for easy product identification when
equipped with a fuse block.

■

50-750 VA, 50/60 Hz.

■

UL and cUL Listed, CE Marked (CE Series only).

■

Ten-year limited warranty.

■

55°C Temperature Rise.

■

105°C Insulation Class.

The AE and CE Series design improves the dissipation of
the heat away from the core and coil assembly providing
cooler operation. In addition, the AE and CE Series industrial
control transformers seal the transformer’s windings and
internal terminations within an epoxy encapsulant encased
in a durable thermoplastic end cap, protecting them from
potentially damaging moisture, dirt and other ambient
contaminants. Furthermore, Acme’s compact design helps
minimize the mounting footprint, providing more flexibility
in applications where space is at a premium.

CE Series for Global Applications
Acme’s CE Series Encapsulated Industrial Control
Transformers carry the CE mark, indicating it complies with the
requirements established by the International Electrotechnical
Commission (IEC) for use of control
circuit transformers in the countries of
the European Union. Regulations that
apply to control transformers include
Low Voltage Directive 73/23/EEC and
Electromagnetic Compatibility (EMC)
Directive 89/336/EEC.

68

Section 5_0412.indd 68

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA SERIES
AE/CE
SERIES
OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

FEATURES

Integrally molded terminal blocks with
combination slotted/phillips screws. Isolation barriers
protect against arc over while able to accommodate
a full ring terminal.

Integrally mounted fuse blocks
available in standard and touch-proof
(CE Series) style.

Dual labels for
identification
of fused modules

CE Series offers touch-proof terminals,
isolating live contacts for
additional safety.

Epoxy encapsulated copper
windings and internal terminations,
providing isolation from external
contaminants and physical damage.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 69

69

6/13/12 11:37 AM

SECTION

5

TA SERIES
AE/CE
INDUSTRIAL
OPEN CORE &CONTROL
COIL INDUSTRIAL
TRANSFORMERS
CONTROL TRANSFORMERS

SELECTION CHARTS

AE SERIES

GROUP I

C

120 x 240 PRIMARY VOLTS—24 SECONDARY VOLTS –– 1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

AE010050

2.69 (6.8)

3.00 (7.6)

2.81 (7.1)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

2.03 (5.1)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.50 (1.1)

75

AE010075

3.22 (8.1)

3.00 (7.6)

2.81 (7.1)

2.53 (6.4)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

3.50 (1.6)

100

AE010100

3.28 (8.3)

3.41 (8.6)

3.09 (7.8)

2.41 (6.1)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

4.05 (1.8)

150

AE010150

3.88 (9.8)

3.78 (9.6)

3.41 (8.6)

2.97 (7.5)

3.13 (7.9)

.20 x .40 (0.5 x 1.0)

6.50 (2.9)

250

AE010250

4.13 (10.4)

4.50 (11.4)

3.84 (9.7)

2.94 (7.4)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.25 (4.2)

350

AE010350

5.00 (12.7)

4.50 (11.4)

3.84 (9.7)

3.78 (9.6)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

12.75 (5.8)

500

AE010500

5.53 (14.0)

5.25 (13.3)

4.66 (11.8)

4.16 (10.5)

4.38 (11.1)

.31 x .69 (0.8 x 1.7)

19.00 (8.6)

750

AE010750

6.81 (17.3)

5.25 (13.3)

4.66 (11.8)

5.75 (14.6)

4.38 (11.1)

.31 x .69 (0.8 x 1.7)

26.00 (11.8)

GROUP II
200/220/440, 208/230/460, 240/480 PRIMARY VOLTS—23/110, 24/115, 25/120 SECONDARY VOLTS—1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

AE020050

3.28 (8.3)

3.00 (7.6)

2.78 (7.0)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

2.25 (5.7)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

3.0 (1.4)

75

AE020075

3.28 (8.3)

3.00 (7.6)

3.09 (7.8)

2.53 (6.4)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

4.0 (1.8)

100

AE020100

3.28 (8.3)

3.41 (8.6)

3.41 (8.6)

2.53 (6.4)

3.13 (7.9)

.20 x .40 (0.5 x 1.0)

4.0 (1.8)

150

AE020150

4.03 (10.2)

3.75 (9.5)

3.41 (8.6)

3.28 (8.3)

3.13 (7.9)

.20 x .40 (0.5 x 1.0)

7.0 (3.2)

250

AE020250

4.38 (11.1)

4.50 (11.4)

4.03 (10.2)

3.75 (9.5)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.0 (4.1)

300

AE020300

5.13 (13.0)

4.50 (11.4)

4.97 (12.6)

3.88 (9.8)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

11.0 (5.0)

350

AE020350

5.25 (13.3)

4.50 (11.4)

4.97 (12.6)

4.16 (10.5)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

13.0 (5.9)

500

AE020500

6.31 (16.0)

5.25 (13.3)

4.97 (12.6)

5.25 (13.3)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

19.0 (8.6)

750

AE020750

6.81 (17.3)

5.25 (13.3)

4.97 (12.6)

5.75 (14.6)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

27.0 (12.2)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

GROUP III
240 x 480 PRIMARY VOLTS—24 SECONDARY VOLTS –– 1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

AE030050

2.69 (6.8)

3.00 (7.6)

2.81 (7.1)

2.03 (5.1)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.5 (1.1)

75

AE030075

3.22 (8.1)

3.00 (7.6)

2.81 (7.1)

2.53 (6.4)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

3.5 (1.6)

100

AE030100

3.28 (8.3)

3.41 (8.6)

3.09 (7.8)

2.41 (6.1)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

4.0 (1.8)

150

AE030150

3.88 (9.8)

3.84 (9.7)

3.41 (8.6)

2.97 (7.5)

3.13 (7.9)

.20 x .40 (0.5 x 1.0)

6.5 (2.9)

250

AE030250

4.13 (10.4)

4.50 (11.4)

3.84 (9.7)

2.94 (7.4)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.2 (4.2)

350

AE030350

5.00 (12.7)

4.50 (11.4)

3.84 (9.7)

3.78 (9.6)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

12.7 (5.8)

500

AE030500

5.53 (14.0)

5.25 (13.3)

4.66 (11.8)

4.16 (10.5)

4.34 (11.0)

.31 x .69 (0.8 X 1.7)

19.0 (8.6)

750

AE030750

6.81 (17.3)

5.25 (13.3)

4.66 (11.8)

5.75 (14.6)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

26.0 (11.8)

70

Section 5_0412.indd 70

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA SERIES
AE/CE
SERIES
OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

GROUP VI
240 x 480, 230 x 460, 220 x 440 PRIMARY VOLTS —120/115/110 SECONDARY VOLTS –– 1Ø, 50/60 Hz
VA
RATING

CATALOG NUMBER

A

APPROX. DIMENSIONS INCHES (CM.)
B
C
D

C

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

50

AE060050

2.69 (6.8)

3.00 (7.6)

2.81 (7.1)

2.03 (5.1)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.5 (1.1)

75

AE060075

3.22 (8.1)

3.00 (7.6)

2.81 (7.1)

2.53 (6.4)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

3.5 (1.6)

100

AE060100

3.28 (8.3)

3.41 (8.6)

3.09 (7.8)

2.41 (6.1)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

4.0 (1.8)

150

AE060150

3.88 (9.8)

3.84 (9.7)

3.41 (8.6)

2.97 (7.5)

3.13 (7.5)

.20 x .40 (0.5 x 1.0)

6.5 (2.9)

250

AE060250

4.13 (10.4)

4.50 (11.4)

3.84 (9.7)

2.94 (7.4)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.2 (4.2)

350

AE060350

5.00 (12.7)

4.50 (11.4)

3.84 (9.7)

3.78 (9.6)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

12.7 (5.8)

500

AE060500

5.53 (14.0)

5.25 (13.3)

4.66 (11.8)

4.16 (10.5)

4.34 (11.0)

.31 x .69 (0.8 X 1.7)

19.0 (8.6)

750

AE060750

6.81 (17.3)

5.25 (13.3)

4.66 (11.8)

5.75 (14.6)

4.31 (10.9)

.31 x .69 (0.8 X 1.7)

26.0 (11.8)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

GROUP VII
208/230/460 PRIMARY VOLTS –– 115 SECONDARY VOLTS –– 1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

AE070050

2.84 (7.2)

3.00 (7.6)

2.81 (7.1)

2.16 (5.4)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.6 (1.2)

100

AE070100

3.41 (6.6)

3.41 (8.6)

3.09 (7.8)

2.69 (6.8)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

4.2 (1.9)

150

AE070150

3.88 (9.8)

3.75 (9.5)

3.41 (8.6)

3.09 (7.8)

3.09 (7.8)

.20 x .40 (0.5 x 1.0)

6.7 (3.1)

250

AE070250

4.16 (10.5)

4.50 (11.4)

4.03 (10.2)

3.28 (8.3)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.5 (4.3)

350

AE070350

5.19 (13.1)

4.50 (11.4)

4.03 (10.2)

4.38 (11.1)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

13.4 (6.1)

500

AE070500

5.88 (14.9)

5.25 (13.3)

4.66 (11.8)

4.78 (12.1)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

19.0 (8.6)

750

AE070750

6.81 (17.3)

5.25 (13.3)

4.66 (11.8)

5.75 (14.6)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

27.0 (12.2)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

GROUP XII
230/460/575 PRIMARY VOLTS –– 95/115 SECONDARY VOLTS –– 1Ø, 50/60 Hz
VA
RATING

CATALOG NUMBER

A

APPROX. DIMENSIONS INCHES (CM.)
B
C
D

50

AE120050

2.88 (7.3)

3.00 (7.6)

2.81 (7.1)

2.19 (5.5)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.6 (1.2)

100

AE120100

3.59 (9.1)

3.41 (8.6)

3.09 (7.8)

2.88 (7.3)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

4.2 (1.9)

150

AE120150

3.94 (10.0)

3.78 (9.6)

3.41 (8.6)

3.28 (8.3)

3.09 (7.8)

.20 x .40 (0.5 x 1.0)

6.8 (3.1)

250

AE120250

4.16 (10.5)

4.50 (11.4)

4.03 (10.2)

3.22 (8.1)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.5 (4.3)

350

AE120350

5.00 (12.7)

4.50 (11.4)

4.03 (10.2)

3.69 (9.3)

4.31 (10.9)

.20 x .40 (0.5 x 1.0)

13.2 (6.0)

500

AE120500

5.84 (14.8)

5.25 (13.3)

4.66 (11.8)

4.66 (11.8)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

19.2 (8.7)

750

AE120750

6.81 (17.3)

5.25 (13.3)

4.66 (11.8)

5.81 (14.7)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

27.0 (12.2)

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 71

71

6/13/12 11:37 AM

5

SECTION

TA SERIES
AE/CE
SERIES
OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

SELECTION CHARTS

CE SERIES

GROUP IC

C

120 x 240 PRIMARY VOLTS –– 24 SECONDARY VOLTS –– 1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

CE010050

2.69 (6.8)

3.00 (7.6)

2.81 (7.1)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

2.25 (5.7)

2.56 (6.5)

.20 x .40 (0.5 x 1.0)

2.5 (1.2)

75

CE010075

3.22 (8.1)

3.41 (8.6)

2.81 (7.1)

2.25 (5.7)

2.88 (7.3)

.20 x .40 (0.5 x 1.0)

3.5 (1.6)

100

CE010100

3.28 (8.3)

3.75 (9.5)

3.09 (7.8)

2.53 (6.4)

3.13 (7.9)

.20 x .40 (0.5 x 1.0)

4.2 (1.9)

150

CE010150

3.88 (9.8)

4.50 (11.4)

3.41 (8.6)

2.53 (6.4)

3.84 (9.7)

.20 x .40 (0.5 x 1.0)

6.6 (3.0)

250

CE010250

4.13 (10.4)

4.50 (11.4)

4.03 (10.2)

3.22 (8.1)

3.84 (9.7)

.20 x .40 (0.5 x 1.0)

9.4 (4.3)

350

CE010350

5.00 (12.7)

5.25 (13.3)

4.03 (10.2)

3.75 (9.5)

4.50 (11.4)

.31 x .69 (0.8 X 1.7)

13.0 (5.9)

500

CE010500

5.50 (13.9)

5.25 (13.3)

4.66 (11.8)

4.28 (10.8)

4.50 (11.4)

.31 x .69 (0.8 X 1.7)

19.1 (8.7)

750

CE010750

7.03 (17.8)

5.25 (13.3)

4.66 (11.8)

5.75 (14.6)

4.50 (11.4)

.31 x .69 (0.8 X 1.7)

26.6 (12.1)

GROUP IIC
200/220/440, 208/230/460, 240/480 PRIMARY VOLTS –– 23/110, 24/115, 25/120 SECONDARY VOLTS –– 1Ø, 50/60 Hz
VA
RATING

CATALOG NUMBER

A

APPROX. DIMENSIONS INCHES (CM.)
B
C
D

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

50

CE020050

3.28 (8.3)

3.28 (8.3)

2.81 (7.1)

2.25 (5.7)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

2.7 (1.2)

100

CE020100

4.03 (10.2)

3.75 (9.5)

3.13 (7.9)

3.22 (8.1)

3.16 (8.0)

.20 x .40 (0.5 x 1.0)

4.3 (1.9)

150

CE020150

4.03 (10.2)

4.50 (11.4)

3.41 (8.6)

2.81 (7.1)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

6.8 (3.0)

250

CE020250

4.78 (12.1)

4.50 (11.4)

4.03 (10.2)

4.06 (10.3)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.7 (4.4)

350

CE020350

5.53 (14.0)

5.25 (13.3)

4.03 (10.2)

4.28 (10.8)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

13.5 (6.1)

500

CE020500

7.25 (18.4)

5.25 (13.3)

4.69 (11.9)

6.00 (15.2)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

19.6 (8.9)

750

CE020750

6.81 (17.3)

5.28 (13.4)

4.69 (11.9)

5.75 (14.6)

4.44 (11.2)

.31 x .69 (0.8 X 1.7)

27.0 (12.2)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

GROUP IIIC
240 x 480 PRIMARY VOLTS –– 24 SECONDARY VOLTS –– 1Ø, 50/60 Hz
VA
RATING

CATALOG NUMBER

A

APPROX. DIMENSIONS INCHES (CM.)
B
C
D

50

CE030050

3.00 (7.6)

3.00 (7.6)

2.81 (7.1)

2.25 (5.7)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.5 (1.1)

75

CE030075

3.28 (8.3)

3.28 (8.3)

2.81 (7.1)

2.25 (5.7)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

3.5 (1.6)

100

CE030100

3.28 (8.3)

3.75 (9.5)

3.09 (7.8)

2.53 (6.4)

3.13 (7.9)

.20 x .40 (0.5 x 1.0)

4.0 (1.8)

150

CE030150

3.88 (9.8)

4.50 (11.4)

3.47 (8.8)

2.53 (6.4)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

6.5 (2.9)

250

CE030250

4.13 (10.4)

4.50 (11.4)

4.03 (10.2)

3.22 (8.1)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.2 (4.2)

350

CE030350

5.00 (12.7)

5.25 (13.3)

4.03 (10.2)

3.75 (9.5)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

12.7 (5.8)

500

CE030500

5.53 (14.0)

5.25 (13.3)

4.66 (11.8)

4.28 (10.8)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

19.0 (8.6)

750

CE030750

7.03 (17.8)

5.25 (13.3)

4.66 (11.8)

5.41 (13.7)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

26.0 (11.8)

72

Section 5_0412.indd 72

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

TA SERIES
AE/CE
SERIES
OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

GROUP IVC

C

380/400/415 PRIMARY VOLTS –– 110/220 SECONDARY VOLTS –– 1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

CE040050

3.53 (8.9)

100

CE040100

150

CE040150

250
350

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

3.00 (7.6)

2.81 (7.1)

2.53 (6.4)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.6 (1.2)

3.53 (8.9)

3.75 (9.5)

3.22 (8.1)

2.53 (6.4)

3.13 (8.0)

.20 x .40 (0.5 x 1.0)

4.3 (1.9)

3.53 (8.9)

4.34 (11.0)

3.41 (8.6)

2.53 (6.4)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

6.7 (3.0)

CE040250

4.03 (10.2)

4.50 (11.4)

4.22 (10.7)

3.22 (8.1)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.4 (4.3)

CE040350

4.91 (12.4)

4.50 (11.4)

4.22 (10.7)

4.06 (10.3)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

13.0 (5.9)

500

CE040500

6.00 (15.2)

5.25 (13.3)

4.69 (11.9)

4.78 (12.1)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

18.8 (8.5)

750

CE040750

6.81 (17.3)

5.25 (13.3)

4.69 (11.9)

5.75 (14.6)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

26.0 (11.8)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

2.47 (6.2)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

2.7 (1.2)

GROUP VC
208, 220/380/440, 230/400/460, 240/416/480 PRIMARY VOLTS ––
85/100/110, 91/110/120, 95/115/125, 99/120/130 SECONDARY VOLTS –– 1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

CE050050

4.03 (10.2)

150

CE050150

3.88 (9.8)

4.34 (11.0)

3.41 (8.6)

2.88 (7.3)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

6.7 (3.0)

250

CE050250

5.13 (13.0)

4.50 (11.4)

4.03 (10.2)

4.38 (11.1)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.5 (4.3)

350

CE050350

5.91 (15.0)

5.25 (13.3)

4.03 (10.2)

4.78 (12.1)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

13.3 (6.0)

500

CE050500

5.91 (15.0)

5.25 (13.3)

4.66 (11.8)

4.63 (11.7)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

19.0 (8.6)

750

CE050750

7.09 (18.0)

5.25 (13.3)

4.66 (11.1)

5.81 (14.7)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

27.0 (12.2)

3.41 (8.6)

3.09 (7.8)

GROUP VIC
240 x 480, 230 x 460, 220 x 440 PRIMARY VOLTS ––120/115/110 SECONDARY VOLTS –– 1Ø, 50/60 Hz
APPROX. DIMENSIONS INCHES (CM.)
B
C
D

VA
RATING

CATALOG NUMBER

A

50

CE060050

3.41 (8.6)

3.00 (7.6)

2.81 (7.1)

E

MOUNTING SLOT
F

APPROX.
SHIPPING WT

2.53 (6.4)

2.53 (6.4)

.20 x .40 (0.5 x 1.0)

2.6 (1.2)

75

CE060075

3.41 (8.6)

3.28 (8.3)

2.81 (7.1)

2.53 (6.4)

2.81 (7.1)

.20 x .40 (0.5 x 1.0)

3.6 (1.6)

100

CE060100

3.41 (8.6)

3.75 (9.5)

3.09 (7.8)

2.53 (6.4)

3.13 (7.9)

.20 x .40 (0.5 x 1.0)

4.3 (1.9)

150

CE060150

3.88 (9.8)

4.50 (11.4)

3.47 (8.8)

2.53 (6.4)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

6.7 (3.0)

250

CE060250

4.13 (10.4)

4.50 (11.4)

4.03 (10.2)

3.22 (8.1)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

9.4 (4.3)

300

CE060300

4.53 (11.5)

4.50 (11.4)

4.03 (10.2)

3.75 (9.5)

3.75 (9.5)

.20 x .40 (0.5 x 1.0)

10.9 (4.9)

350

CE060350

5.00 (12.7)

5.25 (13.3)

4.03 (10.2)

3.75 (9.5)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

13.0 (5.9)

500

CE060500

6.00 (15.2)

5.25 (13.3)

4.66 (11.8)

4.78 (12.1)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

18.8 (8.5)

750

CE060750

6.81 (17.3)

5.25 (13.3)

4.66 (11.8)

5.75 (14.6)

4.38 (11.1)

.31 x .69 (0.8 X 1.7)

26.0 (11.8)

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 73

73

6/13/12 11:37 AM

SECTION

5

TA SERIES
AE/CE
INDUSTRIAL
OPEN CORE &CONTROL
COIL INDUSTRIAL
TRANSFORMERS
CONTROL TRANSFORMERS

FUSE SIZING CHARTS
PRIMARY FUSE SIZING CHARTS
RECOMMENDED RATING FOR CURRENT LIMITING CLASS CC FUSES
VA
50

120 V
1.2

208 V
0.6

230 V
0.6

240 V
0.6

277 V
0.6

380 V
0.3

416 V
0.3

440 V
0.3

460 V
0.3

480 V
0.3

550 V
0.3

600 V
0.3

75

1.9

1.0

1.0

1.0

0.8

0.6

0.6

0.6

0.5

0.5

0.4

0.4

100

2.5

1.5

1.3

1.3

1.0

0.8

0.8

0.6

0.6

0.6

0.6

0.5

150

3.8

2.0

2.0

1.9

1.5

1.2

1.2

1.0

1.0

1.0

0.8

0.8

250

3.5

3.5

3.5

3.0

3.0

2.0

1.8

1.8

1.5

1.5

1.4

1.2

300

4.0

4.0

4.0

3.5

3.0

2.5

2.5

2.0

2.0

1.9

1.5

1.5

350

5.0

5.0

4.5

4.0

4.0

2.5

2.5

2.5

2.0

2.0

1.9

1.8

500

7.0

4.0

3.5

3.5

5.5

4.0

3.5

3.5

3.5

3.0

3.0

2.5

750

10.0

6.0

5.5

5.0

4.5

6.0

5.5

5.0

5.0

5.0

4.0

4.0

NOTE: Bold lines indicate changes in the percent of rated current used to calculate fuse sizes in accordance with article 450 of the NEC.

SECONDARY FUSE SIZING CHARTS
RECOMMENDED RATING FOR CURRENT LIMITING MIDGET FUSES
VA
50 VA

24 V
3.2

85 V
0.9

91 V
0.9

99 V
0.8

100 V
0.8

110 V
0.7

115 V
0.7

120 V
0.6

125 V
0.6

130 V
0.6

75 VA

5.0

1.4

1.2

1.2

1.2

1.0

1.0

1.0

1.0

0.8

100 VA

6.0

1.5

1.5

1.5

1.5

1.5

1.5

1.2

1.2

1.2

150 VA

10.0

2.5

2.5

2.5

2.5

2.0

2.0

2.0

2.0

1.5

250 VA

12.0

4.5

4.5

4.0

4.0

3.5

3.5

3.0

3.0

3.0

300 VA

15.0

5.5

5.5

5.0

5.0

4.5

4.5

4.0

4.0

3.5

350 VA

20.0

6.5

6.0

5.5

5.5

5.0

5.0

4.5

4.5

4.5

500 VA

25.0

9.0

9.0

8.0

8.0

7.0

7.0

6.0

6.0

6.0

750 VA

40.0

12.0

12.0

12.0

12.0

10.0

10.0

10.0

10.0

9.0

CONNECTION DETAILS FOR AE05 & CE05
H1-H2

H1-H3

H1-H4

X1-X2
85

100

110

380

440

91

110

120

208
220

X1-X3

X1-X4

230

400

460

95

115

125

240

416

480

99

120

130

74

Section 5_0412.indd 74

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

5

SECTION

TA SERIES
AE/CE
INDUSTRIAL
OPEN CORE &CONTROL
COIL INDUSTRIAL
TRANSFORMERS
CONTROL TRANSFORMERS

FUSE KITS & ACCESSORIES
CATALOG NUMBER

VA

DESCRIPTION

APPROX. SHIPPING WT. (Lbs./ Kg.)

PL79920

50-750

Fuse Kit: Primary Fuse Block EIC Series
(2 Class CC Blocks)

1.0 (0.5)

PL79921

150-750

Fuse Kit: Primary & Secondary Fuse Block EIC Series
(2 Class CC and 1 Midget Blocks)

1.0 (0.5)

PL79922

50-750

Fuse Kit: Primary Fuse Block EIC Series
CE Listed w/ Covers (2 Class CC Blocks)

1.0 (0.5)

Fuse Kit: Primary & Secondary Fuse Block EIC Series
CE Listed w/ Covers (2 Class CC and 1 Midget Blocks)

1.0 (0.5)

PL79923

150-750

Fuse Kit: Secondary Fuse 1/4” x 1-1/4” w/ARM

1.0 (0.5)

PL79925

PL79924
50 – 350

Cover: Small Terminal Covers (Qty. 2)

1.0 (0.5)

PL79926

500 & 750

Cover: Large Terminal Covers (Qty. 2)

1.0 (0.5)

Cover: Fuse Block Covers (Qty. 1)

1.0 (0.5)
1.0 (0.5)

PL79927
PL79928

50 – 350

Link: Small Jumper Links (Qty. 2)

PL79929

500 & 750

Link: Large Jumper Links (Qty. 2)

1.0 (0.5)

PL79930

50 – 350

Fuse Kit: Secondary Fuse Midget w/ARM

1.0 (0.5)

PL79931

500 & 750

Fuse Kit: Secondary Fuse Midget w/ARM

1.0 (0.5)

AE & CE Series Wiring Diagrams
WIRING FOR AE01 & CE01

WIRING FOR AE02 & CE02
H1

H1 H3 H2 H4
H1

H2

H3

120V

240V

H1 H3
H2

H3

240
230
220

H2 H4
H4

208
200

WIRING FOR AE03 & CE03

H4

480
460
440

480V
460
440

H1

240V
230
220

H1 H3 H2 H4
H1

WIRING FOR CE04

H1 H3

H4

H3

415
400

H2 H4

H2

H3

H2

H4

380

25
24
23
120
115
110

24V
X2

X1
X3

WIRING FOR AE05 & CE05
H1

H2

H3

480V
460
416V 440
400
380

240V
230
220
208

WIRING FOR AE06 & CE06
480V
460
440
H1

H1 H3
H2

H3

X3

X2

99V
95
91
85

H2

230V

240V
230
220

H3

H2

X2

115V
X2

X2

H4

H3

480V
460
440

460V

H4

X1
X1

220V

H4

H2 H4

120V
115
110

X3
X4 X2 X3

WIRING FOR AE12
H1

H1

X3 X1

110V

X1

WIRING FOR AE07

240V
230
220

H1 H3 H2 H4

X2

X4 X2

X2

X1

208V

120V
115
130V 110
125 100
120
110

X4

X2

H4

X4

24V

600V
575
550

100V
95
90
120V
115
110

X1

X1

X3

X1

X1

AE & CE Series Dimensional Drawings
B
E
F

A
D

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 75

C

75

6/13/12 11:37 AM

SECTION

5

®
FINGER/GUARD
TA
SERIES OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

FINGER/GUARD® Industrial Control Transformers
The Acme FINGER/GUARD® line of
Touch-Protected Industrial Control
Transformers offers the most advanced
and versatile design concepts
available to the marketplace today.

Easy access front opening in
terminal makes for fast wire
connections with one screw

Durable molded plastic
terminal is designed for
protection against contact
with live components

They are designed to meet Acme’s rigid
standards for mechanical durability as
well as surpass Agency and Industry
electrical standards. The FINGER/
GUARD® line is designed for all control
applications and features integrally
installed, durable molded plastic
terminations designed to protect against
contact with live components. No slipon plastic covers to be broken, lost or
misplaced.
All F INGER/GUARD® products use
copper windings, high- permeability
silicon steel cores and 130 degree
C (Class B) insulation. All FINGER/
GUARD® products meet or exceed
ANSI, IEC and NEMA standards.
They are third party witness tested
and are UL Listed (File E79947), CSA
Certified (File 7357) and CE Marked
(to EN60742)... ON ALL SIZES. The
product is suitable for both 50 and 60
Hertz applications and is available in
sizes ranging from 50 VA to 3000 VA.

Easy to read nameplate
clearly identifies
important data

Wide range of primary and
secondary voltages

CE Marking

FEATURES

(Conformité Européene)
The CE Marking, standing for Conformité Européene, is a European Mark of
conformity indicating that a product or system to which it is applied, complies
with European law (Directives) regulating a necessary level of protection in
Europe with respect to safety, health, environmental and consumer protection;
however, it is not intended as a guarantee of quality for the consumer. The CE
Marking must be applied to products being placed on the European market.
The CE Marking does allow a product to be moved freely within the internal
market of the European Union.

■

Constructed with high quality silicon
steel lamination to minimize core
losses and increase efficiency.

■

Designs incorporate precision wound
coils for improved regulation.

■

Copper windings on all groups.

•

Low Voltage Directive, 73/23/EEC effective January 1, 1997

■

50 VA through 3000 VA sizes, 50/60 Hz.

■

130°C (Class B) Insulation 80°C
temperature rise.

•
•

Electromagnetic Compatibility (EMC) Directive, 89/336/EEC effective
January 1, 1996

■

Voltage regulation exceeds NEMA
requirements.

■

UL Listed, CSA Certified and
CE Marked.

■

Attractive finish, nameplate, and
design features enhance the end
product.

■

Ten-year limited warranty.

■

Smaller, lighter weight design.

76

Section 5_0412.indd 76

The Directives that apply to Control or Power Distribution Transformers are:

The stringent testing required to obtain a third party certification mark in many
cases is significantly more rigid than domestic requirements. This ensures that
not only the Acme FINGER/GUARD® product, but all of
our CE Marked products are designed to meet a higher
level of safety standards than non-CE Marked products.
All Acme transformers are manufactured in a facility
certified by Underwriters Laboratories to ISO-9001.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

SECTION

5

®
FINGER/GUARD
TA
SERIES OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

SELECTION CHARTS
GROUP A
120 X 240 PRIMARY VOLTS—24 SECONDARY VOLTS—50/60 Hz
CATALOG
NO.

VA
RATING

EUROPEAN*
RATING

APPROX. DIMENSIONS INCHES (CM.)
A

B

C

D

F

APPROX.
SHIP WEIGHT LBS. (Kg.)

.31 x .50 (0.8 x 1.3)

26 (11.8)

E

FS150
FS175
FS1100

Reference Group IC (CE01):
CE Series Industrial Control Transformers
50-750 VA
See Pg 76

FS1150
FS1250
FS1350
FS1500
FS1750
FS11000

1000

870

4.76 (12.1)

6.75 (17.1)

6.03 (15.3)

5.75 (14.6)

2.86 (7.3)

GROUP B
240 X 480, 230 X 460, 220 X 440 PRIMARY VOLTS—120/115/110 SECONDARY VOLTS—50/60 Hz
CATALOG
NO.

VA
RATING

EUROPEAN*
RATING

APPROX. DIMENSIONS INCHES (CM.)
A

B

C

D

E

F

APPROX.
SHIP WEIGHT LBS. (Kg.)

FS250
FS275
FS2100

Reference Group VIC (CE06):
CE Series Industrial Control Transformers
50-750 VA
See Pg 77

FS2150
FS2250
FS2300
FS2350
FS2500
FS2750
FS21000

1000

870

4.76 (12.1)

6.75 (17.1)

6.03 (15.3)

5.75 (14.6)

2.86 (7.3)

.31 x .50 (0.8 x 1.3)

26 (11.8)

FS21500

1500

1290

6.01 (15.3)

6.75 (17.1)

6.03 (15.3)

5.75 (14.6)

4.13 (10.5)

.31 x .50 (0.8 x 1.3)

38 (17.2)

FS22000

2000

1680

6.51 (16.5)

6.75 (17.1)

6.03 (15.3)

5.75 (14.6)

4.63 (11.8)

.31 x .50 (0.8 x 1.3)

44 (20.0)

FS23000

3000

2465

7.44 (18.9)

7.50 (19.1)

6.68 (17.0)

6.50 (16.5)

6.47 (16.4)

.41 x .81 (1.0 x 2.1)

60 (27.2)

GROUP C
240/416/480/600; 230/400/460/575; 220/380/440/550; 208/500 PRIMARY VOLTS
99/120/130; 95/115/125; 91/110/120; 85/100/110 SECONDARY VOLTS—50/60 Hz
CATALOG
NO.

VA
RATING

APPROX. DIMENSIONS INCHES (CM.)

EUROPEAN*
RATING

A

B

C

D

E

F

APPROX.
SHIP WEIGHT LBS. (Kg.)

FS350

50

50

2.59 (6.6)

3.75 (9.5)

3.64 (9.2)

3.13 (8.0)

1.70 (4.3)

.22 x .50 (0.6 x 1.3)

5 (2.3)

FS3150

150

150

3.31 (8.4)

4.50 (11.4)

4.15 (10.5)

3.75 (9.5)

2.18 (5.5)

.22 x .50 (0.6 x 1.3)

8 (3.6)

FS3250

250

250

3.61 (9.2)

4.88 (12.4)

4.46 (11.3)

4.06 (10.3)

2.33 (5.9)

.22 x .50 (0.6 x 1.3)

11 (5.0)

FS3350

350

345

4.69 (11.9)

4.88 (12.4)

4.46 (11.3)

4.06 (10.3)

3.48 (8.8)

.22 x .50 (0.6 x 1.3)

17 (7.7)
22 (10.0)

FS3500

500

490

4.39 (11.2)

6.75 (17.1)

6.03 (15.3)

5.75 (14.6)

2.48 (6.3)

.31 x .50 (0.8 x 1.3)

FS3750

750

720

5.18 (13.2)

6.75 (17.1)

6.03 (15.3)

5.75 (14.6)

3.31 (8.4)

.31 x .50 (0.8 x 1.3)

30 (13.6)

FS31000

1000

870

6.18 (15.7)

6.75 (17.1)

6.03 (15.3)

5.75 (14.6)

4.30 (10.9)

.31 x .50 (0.8 x 1.3)

39 (17.7)
51 (23.1)

FS31500

1500

1290

6.26 (15.9)

7.50 (19.1)

6.68 (17.0)

6.50 (16.5)

5.26 (13.4)

.41 x .81 (1.0 x 2.1)

FS32000

2000

1680

7.76 (19.7)

7.50 (19.1)

7.70 (19.6)

6.50 (16.5)

6.75 (17.1)

.41 x .81 (1.0 x 2.1)

66 (29.9)

FS33000

3000

2465

8.88 (22.6)

11.92 (30.3)

8.83 (22.4)

6.75 (17.1)

5.75 (14.6)

.41 x .81 (1.0 x 2.1)

70 (31.8)

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 77

77

6/13/12 11:37 AM

SECTION

5

®
FINGER/GUARD
TA
SERIES OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

®

FUSE KITS–FOR FINGER/GUARD INDUSTRIAL CONTROL TRANSFORMERS
CATALOG NO.

DESCRIPTION

PL79905

PRIMARY FUSE KIT FOR CLASS CC FUSES

PL79906

PRIMARY & SECONDARY FUSE KIT FOR CLASS CC PRIMARY FUSES & MIDGET SECONDARY FUSE

PL79907

PRIMARY FUSE KIT FOR MIDGET FUSES

PL79908

PRIMARY & SECONDARY FUSE KIT FOR MIDGET FUSES

* EN60742 requires transformers to pass the temperature rise limits of a 130° C (Class B) insulation system at 6% above the rated supply voltage.

CONNECTION DETAILS FOR GROUP C
CONNECT TO LINE FOR RESPECTIVE VOLTAGE
H1-H2
H1-H3
H1-H4
H1-H5

X1-X2

OUTPUT VOLTS
X1-X3

X1-X4

208

–

–

500

85

100

110

220

380

440

550

91

110

120

230

400

460

575

95

115

125

240

416

480

600

99

120

130

PRIMARY FUSE SIZING CHARTS
RECOMMENDED RATING FOR CURRENT LIMITING CLASS CC FUSES
VA
50

120 V
1.2

208 V
0.6

230 V
0.6

240 V
0.6

277 V
0.6

380 V
0.3

416 V
0.3

440 V
0.3

460 V
0.3

480 V
0.3

550 V
0.3

600 V
0.3

75

1.9

1.0

1.0

1.0

0.8

0.6

0.6

0.6

0.5

0.5

0.4

0.4

100

2.5

1.5

1.3

1.3

1.0

0.8

0.8

0.6

0.6

0.6

0.6

0.5

150

3.8

2.0

2.0

1.9

1.5

1.2

1.2

1.0

1.0

1.0

0.8

0.8

250

3.5

3.5

3.5

3.0

3.0

2.0

1.8

1.8

1.5

1.5

1.4

1.2

300

4.0

4.0

4.0

3.5

3.0

2.5

2.5

2.0

2.0

1.9

1.5

1.5

350

5.0

5.0

4.5

4.0

4.0

2.5

2.5

2.5

2.0

2.0

1.9

1.8

500

7.0

4.0

3.5

3.5

5.5

4.0

3.5

3.5

3.5

3.0

3.0

2.5

750

10.0

6.0

5.5

5.0

4.5

6.0

5.5

5.0

5.0

5.0

4.0

4.0

1000

15.0

8.0

7.0

7.0

6.0

4.5

4.0

3.5

3.5

3.5

5.5

5.0

1500

20.0

12.0

12.0

12.0

10.0

7.0

6.0

6.0

5.5

5.5

5.0

4.5

2000

25.0

12.0

15.0

15.0

12.0

9.0

8.0

8.0

7.5

7.0

6.0

6.0

3000

30.0

20.0

20.0

20.0

15.0

15.0

12.0

12.0

12.0

12.0

10.0

9.0

NOTE: Bold lines indicate changes in the percent of rated current used to calculate fuse sizes in accordance with article 450 of the NEC.

SECONDARY FUSE SIZING CHARTS
RECOMMENDED RATING FOR CURRENT LIMITING MIDGET FUSES
VA
50 VA

24 V
3.2

85 V
0.9

91 V
0.9

99 V
0.8

100 V
0.8

110 V
0.7

115 V
0.7

120 V
0.6

125 V
0.6

130 V
0.6

75 VA

5.0

1.4

1.2

1.2

1.2

1.0

1.0

1.0

1.0

0.8

100 VA

6.0

1.5

1.5

1.5

1.5

1.5

1.5

1.2

1.2

1.2

150 VA

10.0

2.5

2.5

2.5

2.5

2.0

2.0

2.0

2.0

1.5

250 VA

12.0

4.5

4.5

4.0

4.0

3.5

3.5

3.0

3.0

3.0

300 VA

15.0

5.5

5.5

5.0

5.0

4.5

4.5

4.0

4.0

3.5

350 VA

20.0

6.5

6.0

5.5

5.5

5.0

5.0

4.5

4.5

4.5

500 VA

25.0

9.0

9.0

8.0

8.0

7.0

7.0

6.0

6.0

6.0

750 VA

40.0

12.0

12.0

12.0

12.0

10.0

10.0

10.0

10.0

9.0

1000 VA

50.0

15.0

15.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

1500 VA

—

25.0

20.0

20.0

20.0

20.0

20.0

15.0

15.0

15.0

2000 VA

—

30.0

30.0

25.0

25.0

25.0

25.0

20.0

20.0

20.0

3000 VA

—

40.0

40.0

40.0

40.0

35.0

35.0

30.0

30.0

30.0

78

Section 5_0412.indd 78

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

5

SECTION

®
FINGER/GUARD
TA
SERIES OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

FINGER/GUARD® Wiring Diagrams
GROUP B

GROUP A

GROUP C
H1

120V

240V
H1 H3 H2 H4
H1

480V
460
440

H1 H3
H2

H3

H1 H3 H2 H4

H2 H4

H1

H4

H2

240V
230
220
H1 H3
H2

H3

H2 H4

120V
115
130V 110
125 100
120
110

120V
115
110

24V
X2

X2

X1

X1

X4

H4

480V
460
416V 440
400
380

240V
230
220
208

H4

H3

X3

X2

99V
95
91
85

X1

FINGER/GUARD® Dimensional Drawings
50 VA Thru 2 kVA
A

E

F

D

C

B

3 kVA

A
C
F

D
B
E

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 5_0412.indd 79

79

6/13/12 11:37 AM

SECTION

5

®
FINGER/GUARD
TA
SERIES OPEN CORE
INDUSTRIAL
& COIL INDUSTRIAL
CONTROL
CONTROL
TRANSFORMERS
TRANSFORMERS

NOTES

80

Section 5_0412.indd 80

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:37 AM

S E CT I ON

6

LOW VOLTAGE/
LIGHTING
TRANSFORMERS

General Purpose................................................ 84
Buck - Boost....................................................... 85
Wiring Diagrams ................................................ 86

Section 6_0412.indd 81

6/13/12 11:41 AM

SECTION

6

LOW VOLTAGE LIGHTING TRANSFORMERS & POWER SUPPLIES

Low Voltage Lighting
A greater selection for your indoor & outdoor low voltage lighting projects

Why Low ­Voltage?

Acme’s Low Voltage Lighting
products provide a safe, long lasting, highly reliable power source;
a perfect selection for landscape
applications as well as interior use.
Low voltage lighting is a creative
medium with unlimited application
possibilities. Low voltage lighting
benefits include:
	Precision beam control

n

	More light intensity per watt

n

	Less radiated heat

n

	Greater efficiency

n

	Longer life

n

	Safer to use

n

	Easy installation

n

	A high return on end-user
		 investment
n

Acme ­Advantages
More value

More protection

Acme low voltage transformers are available in a wide
range of options and models that are all UL listed for use
indoors or outdoors. See inside back cover for warranty
details.

A full fault current carrying Faraday Shield (except Buck–
Boost) prevents 120 volts from reaching the 12 volt side, as
required by UL-1571 and UL-1838.

More Power

The convenient “Selection Guide” on the facing page
provides you with the data you need to select the product
that best meets your requirement. Complete product
selection data, dimensions and wiring diagrams are
contained on the following pages. If you need help in
your selection, or if you have questions, just call technical
services at 1-800-334-5214.

Transformers in ratings of 100 through 1000 W; Group VI
Buck–Boost in .05 through 10 kVA.

More convenience
Groups IV, V and VI transformers have copper lead wires
for hardwiring. Circuit breakers for instant reset (except
pool and spa and Buck–Boost). No fumbling with fuses.
Generous wiring compartment, too!

82

Features & Options

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION

6

LOW VOLTAGE LIGHTING TRANSFORMERS & POWER SUPPLIES

SELECTION GUIDE
TRANSFORMERS
GROUP V

GROUP VI

‘T1’
Catalog No.

Buck–Boost
‘T1’ and ‘T2”
Catalog No.

Ratings
(Watts, VA, kVA)

100
through
1000 VA

.05
through
10 kVA

24 Hour Timer
and Photocell

No

No

Primary Input

120 Volts or
240 Volts

120 x 240
Volts

Secondary
Output

12V or 24V

12 x 24 V

5

Primary Line Cord
with Plug

No

No

6

Hardwired Primary

Yes

Yes

Auto Thermal Reset

No

Circuit
Breakers

No

Output
Wiring

Copper
Lead Wires

Copper
Lead Wires

Tap Switch
12V–11,12,13V or
12/24V–11/22, 12/24, 13/26

No

No

On–Off–Auto
Switch

No

No

UL Listed

Yes

Yes

12

CSA Certified

Yes

Yes

13

Faraday
Shield

Yes

No

14

Product
Warranty

10 Years

10 Years

15

UL-3R
Indoor/Outdoor
Enclosure

No

Yes

Features/Options
1

2
3
4

7
Overload
Protection:

8

Primary
Secondary

9

10
11

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

83

6

SECTION

LOW VOLTAGE/
VOLTAGE LIGHTING
LIGHTINGTRANSFORMERS
TRANSFORMERS& POWER SUPPLIES

Low Voltage General Purpose Transformers
FEATURES
■

UL Listed , CSA Certified.

■

UL class 180°C insulation system 115°C rise.

■

100, 150, 300, 600, 750, 1000 VA.

■

UL Type 2 enclosure.

■

1 Phase, 60 Hz, 120 or 240 volt input.

■

Keyhole slotted wall mounting brackets.

■

12 or 24 volt output.

■

Black finish.

■

Input Auto-Thermal reset switch.

■

Bottom access.

■

Output circuit breaker.

■

■

Fully encapsulated core and coil.

■

Full fault current carrying Faraday Shield.

■

Flexible copper leadwire terminations.

■

H

Two 0.875 (2.2 cm) single knockouts
each side.
Two dual 0.875 (2.2 cm) and 1.125
(2.9 cm) knockouts on bottom cover.
W

D

GROUP V
120 PRIMARY VOLTS – 12 SECONDARY VOLTS, TWO WINDINGS, 1Ø, 60 Hz
VA

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

CATALOG NO.

CB RATING

CB STYLE

DEPTH

APPROX.
SHIP WEIGHT
LBS. (KG.)

100

T179600S

9.01 (22.9)

4.08 (10.4)

3.88 (9.9)

7 (3.2)

15 AMP

Push To Reset Thermal Breaker

150

T179620S

9.01 (22.9)

4.08 (10.4)

3.88 (9.9)

7 (3.2)

20 AMP

Push To Reset Thermal Breaker

300

T179621S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

11 (5.0)

40 AMP

Push To Reset Thermal Breaker

600

T179622S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

15 (6.8)

60 AMP

Magnetic Toggle On/Off Breaker

750

T179603S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

18 (8.2)

75 AMP

Magnetic Toggle On/Off Breaker

1000

T179604S

11.93 (30.3)

5.41 (13.7)

5.20 (13.2)

26 (11.8)

100 AMP

Magnetic Toggle On/Off Breaker

CB RATING

CB STYLE

Push To Reset Thermal Breaker

120 PRIMARY VOLTS – 24 SECONDARY VOLTS, TWO WINDINGS, 1Ø, 60 Hz
VA

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

DEPTH

APPROX.
SHIP WEIGHT
LBS. (KG.)

CATALOG NO.

100

T179605S

9.01 (22.9)

4.08 (10.4)

3.88 (9.9)

7 (3.2)

7 AMP

150

T179623S

9.01 (22.9)

4.08 (10.4)

3.88 (9.9)

7 (3.2)

10 AMP

Push To Reset Thermal Breaker

300

T179624S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

11 (5.0)

20 AMP

Push To Reset Thermal Breaker

600

T179625S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

15 (6.8)

40 AMP

Push To Reset Thermal Breaker

750

T179608S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

18 (8.2)

50 AMP

Push To Reset Thermal Breaker

1000

T179609S

11.93 (30.3)

5.41 (13.7)

5.20 (13.2)

26 (11.8)

50 AMP

Magnetic Toggle On/Off Breaker

CB RATING

CB STYLE

240 PRIMARY VOLTS – 24 SECONDARY VOLTS, TWO WINDINGS, 1Ø, 60 Hz
VA

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

DEPTH

APPROX.
SHIP WEIGHT
LBS. (KG.)

CATALOG NO.

100

T179615S

9.01 (22.9)

4.08 (10.4)

3.88 (9.9)

7 (3.2)

7 AMP

Push To Reset Thermal Breaker

150

T179629S

9.01 (22.9)

4.08 (10.4)

3.88 (9.9)

7 (3.2)

10 AMP

Push To Reset Thermal Breaker

300

T179630S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

11 (5.0)

20 AMP

Push To Reset Thermal Breaker

600

T179631S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

15 (6.8)

40 AMP

Push To Reset Thermal Breaker

750

T179618S

11.68 (29.7)

4.66 (11.8)

4.57 (11.6)

18 (8.2)

50 AMP

Push To Reset Thermal Breaker

1000

T179619S

11.93 (30.3)

5.41 (13.7)

5.20 (13.2)

26 (11.8)

50 AMP

Magnetic Toggle On/Off Breaker

84

Section 6_0412.indd 84

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:41 AM

6

SECTION

LOW VOLTAGE/
VOLTAGE LIGHTING
LIGHTINGTRANSFORMERS
TRANSFORMERS& POWER SUPPLIES

Buck-Boost Transformers
The No-Frills Low
Voltage Lighting
Buck-Boost Transformers offer a nofrills approach to low voltage lighting.
(See Chart Below) A typical BuckBoost application is 120 volts in and
12 volts out for low voltage lighting or
control circuitry. In most applications,
this low voltage isolation transformer
is field connected as an autotransformer. For more information on BuckBoost Transformers, refer to the next
section in this catalog.

H

D

W

GROUP VI
120 x 240 VOLT INPUT– 12/24 VOLT OUTPUT – 1Ø, 60 Hz
CATALOG
NUMBER

INSULATING
TRANSFORMER
RATING

0.05 kVA

SECONDARY MAXIMUM
CURRENT OUTPUT
12V
24V
4.16
2.08

APPROX. DIMENSIONS
INCHES (CM.)
HEIGHT
WIDTH
DEPTH
6.38 (16.2)
3.19 (8.1)
3.00 (7.6)

T181047
T181048

0.10 kVA

8.32

4.16

6.62 (16.8)

3.75 (9.5)

3.62 (9.2)

5 (2.3)

T181049

0.15 kVA

12.52

6.25

7.12 (18.1)

3.75 (9.5)

3.62 (9.2)

7 (3.2)

T181050

0.25 kVA

20.80

10.40

8.68 (22.0)

4.08 (10.4)

3.88 (9.9)

10 (4.5)

T181051

0.50 kVA

41.60

20.80

9.06 (23.0)

4.37 (11.1)

4.20 (10.7)

15 (6.8)

T181052

0.75 kVA

62.50

31.25

9.68 (24.6)

4.75 (12.1)

4.51 (11.5)

19 (8.6)

T111683

1.00 kVA

83.20

41.60

10.50 (26.7)

5.50 (14.0)

5.13 (13.0)

24 (10.9)

T111684

1.50 kVA

125.00

62.50

11.62 (29.5)

5.50 (14.0)

5.13 (13.0)

30 (13.6)

T111685

2.00 kVA

166.00

83.20

13.00 (33.0)

5.50 (14.0)

5.13 (13.0)

38 (17.2)

T111686

3.00 kVA

250.00

125.00

11.50 (29.2)

10.31 (26.2)

7.13 (18.1)

55 (24.9)

T111687

5.00 kVA

416.00

208.00

14.38 (36.5)

10.31 (26.2)

7.13 (18.1)

75 (34.0)

T211688

7.50 kVA

625.00

312.50

21.19 (53.8)

13.50 (34.3)

10.84 (27.5)

125 (56.7)

T211689

10.00 kVA

833.00

416.60

21.19 (53.8)

13.50 (34.3)

10.84 (27.5)

160 (72.6)

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 6_0412.indd 85

APPROX.
NET WEIGHT
LBS. (KG.)

4 (1.8)

85

6/13/12 11:41 AM

6

SECTION

LOW VOLTAGE/
VOLTAGE LIGHTING
LIGHTINGTRANSFORMERS
TRANSFORMERS& POWER SUPPLIES

Low Voltage Lighting Wiring Diagrams
GROUP VI

GROUP V
H1

H1

H2

H2
240V

120V

H2

H1

H2

120V

240V

24V

Voltage
at Lamp
13.2

X2

X1

X2

H1

X1

12V
OUTPUT

12V

12V
X1

24V

X2

X1

VOLTAGE DROP CHART
Life Expectancy
% of Rated
of Lamp
Candlepower
2/3 Rated Life
350

X2

120V
INPUT

240V
INPUT

12V
OUTPUT

CABLE SIZE CONSTANT CHART
Cable
Cable Size
Size
Constant
#18
1380

H4

H3

X1

X2

H4

H3

X1

X2

H2

H1

120V
INPUT

X3

X4

24V
OUTPUT

H2

H1

X3

X4

240V
INPUT

24V
OUTPUT

180

#16

2200

Length of Run
Cable Size Constant

12.0

As Rated

100

#14

3500

= Voltage Drop

11.5

2X Rated Life

80

#12

7500

3X Rated Life

74

#10

11,920

5X Rated Life

65

#8

18,960

10.0

9X Rated Life

50

#6

30,150

86

Section 6_0412.indd 86

X1

H2

H1

X2

X3

X4

H4

H3

H2

H1

X1

X2

X3

X4

Total Watts on Cable
X

3/4 Rated Life

11.0

H3

VOLTAGE DROP FORMULA

12.6

10.5

H4

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:41 AM

S E CT I ON

7

BUCK-BOOST
TRANSFORMERS
A simple and economical way to
correct offstandard voltages...
from 95 to 500 volts; single and
three phase, in sizes up to 360 kVA.
Simplified buck-boost rating charts
make proper transformer selection
easy, accurate.
Description & Applications .................................88
Questions & Answers ................................... 91-93
Selection Charts – Single Phase .................. 94-96
Selection Charts – Three Phase ................... 97-99
Specifications .................................................. 100
Wiring Diagrams ....................................... 101-102

Section 7_0412.indd 87

6/13/12 11:53 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

Where Are Buck-Boost
Transformers Used?
A typical buck-boost application is 120 volts in, 12
volts out for low voltage lighting or control circuitry. In
most applications, this low voltage transformer is field
connected as an autotransformer. (See question 2 for the
definition of an autotransformer). Buck-boost transformers
provide tremendous capabilities and flexibility in kVA
sizes and input/output voltage combinations. Basically
you get 75 different transformers... all in one
convenient package.
Other buck-boost applications are, where (A) low supply
voltage exists because equipment is installed at the end
of a bus system; (B) the supply system is operating at or
over its design capacity; and (C) where overall consumer
demands may be so high the utility cuts back the supply
voltage to the consumer causing a “brownout.”
T211688

Why Use Buck-Boost Instead of
Another Type Transformer ?
Take a look at the advantages and disadvantages of
using a buck-boost transformer (autotransformer)
compared to a standard isolation transformer of the
proper size and voltage combination.
As you can see, the advantages are many, the
economies great. Buck- boost transformers are
readily available from the stock of your nearest Power
Distribution Products Distributor.

ADVANTAGES

DISADVANTAGES

More efficient

No circuit isolation

Smaller & lighter

Cannot create a
neutral

5-10 times increase
in kVA
Versatile, many
applications
Lower cost

88

Section 7_0412.indd 88

Application voltages
and kVA don‘t match
the nameplate
voltages and kVA

T111683

Proper Voltage Is Critical
With nearly two-thirds of all electrical loads being A.C. motor
loads, maintenance of the proper voltage to that motor is very
important. If the supply line voltage is not maintained, motor
winding current is increased causing reduced motor torque and
escalating motor temperature, all of which results in the rapid
loss of insulation life expectancy.
In addition to motor loads, the detrimental effects of low voltage
on both resistive heating loads and incandescent lighting
output is illustrated in the chart.
Anytime you have a lower than standard voltage, equipment
damage and failure can result.
Buck-boost transformers are an economical way to correct
this potentially very serious problem. Anytime a line voltage
change in the 5-20% range is required, a buck-boost
transformer should be considered as your first line of defense.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

How Low Voltage Affects Various
Equipment Operations and Functions
150%

Increase of Motor
Temperature and
Corresponding Insulation Life
Expectancy Loss

= 5% Low Voltage
140%

= 10% Low Voltage

138%

= 15% Low Voltage
130%
Increase of Motor Winding
Current Requirements in
Induction Motor Loads

120%

123%

117%
110%

111%

111%

105%

100%

901/2%

901/2%

90%

84%

81%

81%

80%

72%
70%

72%

70%

Decrease of Heat Output in
Resistive Heating Loads

Decrease in Motor Torque
Output
Decrease of
57%
Incandescent
Lighting Output

60%

50%

Questions & Answers About Buck-Boost Transformers
1. What is a buck-boost transformer?
Buck-boost transformers are small single phase transformers
designed to reduce (buck) or raise (boost) line voltage from
5 -20%. The most common example is boosting 208 volts to
230 volts, usually to operate a 230 volt motor such as an airconditioner compressor, from a 208 volt supply line.
Buck-boosts are a standard type of single phase distribution
transformers, with primary voltages of 120, 240 or 480 volts
and secondaries typically of 12, 16, 24, 32 or 48 volts. They
are available in sizes ranging from 50 volt amperes to 10
kilo-volt amperes.

2. How does a buck-boost transformer differ from an
insulating transformer?
A buck-boost transformer IS an insulating type transformer
when it is shipped from the factory. When it is connected at
the job site, a lead wire on the primary is connected to a lead
wire on the secondary – thereby changing the transformer’s
electrical characteristics to those of an autotransformer. The
primary and secondary windings are no longer “insulated”
and secondary windings are no longer “insulated” and its kVA
capacity is greatly increased. Refer to figures 1, 2 and 3.

Buck-boost transformers are shipped ready to be connected
for a number of possible voltage combinations.

H4
H3
INPUT

H4

X1

H4

H2

X1
OUTPUT

H1
H3

X2

H2

X3

INPUT

H3

X2

H2

X3

INPUT

OUTPUT

X4

OUTPUT

X3
X2

X4
H1

X4

X1

H1

Figure 1. Buck-boost transformer connected as a
low voltage insulating transformer (primary and
secondary windings shown series connected).

Figure 2. Same buck-boost transformer connected
as a boosting autotransformer. The connection from
H1 to X4 “converted” the unit to an autotransformer.

Figure 3. Illustration No. 2 shown with the primary
and secondary windings “straightened”.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 7_0412.indd 89

89

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

3. What is the difference between a buckboost transformer and an autotransformer?
When a primary lead wire and secondary lead wire of a buckboost transformer are connected together electrically, in a
recommended voltage bucking or boosting connection, the
transformer is in all respects, an autotransformer. However,
if the interconnection between the primary and secondary
winding is not made, then the unit is an insulating type
transformer.

Applications
4. Why are they used?
Electrical and electronic equipment is designed to operate on standard supply voltage. When the supply voltage is
constantly too high or too low, (usually more than 55%), the
equipment fails to operate at maximum efficiency. A buck
and boost transformer is a simple and ECONOMICAL means
of correcting this off-standard voltage.
5. What are the most common applications
for buck-boost transformers?
Boosting 208V to 230V or 240V and vice versa for commercial and industrial air conditioning systems; boosting 110V to
120V and 240V to 277V for lighting systems; voltage correction for heating systems and induction motors of all types.
Many applications exist where supply voltages are constantly
above or below normal.
6. Can buck-boost transformers be used to
power low voltage circuits?
Yes, low voltage control, lighting circuits, or other low voltage
applications requiring either 12V, 16V, 24V, 32V or 48V. The
unit is connected as an insulating transformer and the nameplate kVA rating is the transformer’s capacity.

Operation and Construction
7. Why do buck-boost transformers have 4
windings?
To make them versatile! A four winding buck-boost transformer
(2 primary and 2 secondary windings) can be connected
eight different ways to provide a multitude of voltage and kVA
outputs. A two winding (1 primary & 1 secondary) buck-boost
transformer can be connected only one way.
8. Will a buck-boost transformer
stabilize voltage?
No. The output voltage is a function of the input voltage. If the
input voltage varies, then the output voltage will also vary by
the same percentage.

Load Data
9. Are there any restrictions on the type
of load that can be operated from a
buck-boost transformer?
No, there are no restrictions.
10. Why can a buck-boost transformer
operate a kVA load many times larger than the
kVA rating on its nameplate?
Since the transformer has been auto-connected in such a
fashion that the 22V secondary voltage is added to the 208V
primary voltage, it produces 230V output.
The autotransformer kVA is calculated:
kVA = Output Volts x Secondary Amps
1000
kVA = 230 V x 41.67 Amps = 9.58 kVA
1000

The picture to the left illustrates the difference in physical size between
the autotransformer of 1 kVA, capable of handling a 9.58 kVA load, and
an isolation transformer capable of handling a 7.5 kVA load.
To cite an example... a model T111683 buck-boost transformer has a
nameplate kVA rating of 1 kVA, but when it’s connected as an autotransformer boosting 208V to 230V, its kVA capacity increases to 9.58 kVA.
The key to understanding the operation of buck-boost transformers lies
in the fact that the secondary windings are the only parts of the transformer that do the work of transforming voltage and current. In the example
above, only 22 volts are being transformed (boosted) — i.e. 208V + 22V
= 230V. This 22V transformation is carried out by the secondary windings
which are designed to operate at a maximum current of 41.67 amps
(determined by wire size of windings).

(1 kVA) T111683

(7.5 kVA) T2535153S

Maximum Secondary Amps =
nameplate kVA x 1000
secondary volts
Maximum Secondary Amps =
1.0 kVA x 1000
=
24 V
1000 VA = 41.67 amps
24 V

90

Section 7_0412.indd 90

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

11. Can buck-boost transformers be used
on motor loads?
Yes, either single or three phase. Refer to the motor data
charts in Section I for determining kVA and Amps required by
NEMA standard motors.
12. How are single phase and three phase load
Amps and load kVA calculated?
Single phase Amps = kVA x 1000
Volts
Three phase Amps = kVA x 1000
Volts x 1.73
Single phase kVA = Volts x Amps
1000

Connection and Frequency
16. How does the installer or user know how
to connect a buck-boost transformer?
The connection chart packed with each unit shows how to
make the appropriate connections. These same connection
charts are also shown in this section (page 118).
17. Can 60 Hertz buck-boost transformers
be used on a 50 Hertz service?
No. Acme buck-boost transformers should be operated only at
the frequencies recommended. However, units recommended
for 50 cycle operation are suitable for 60 cycle operation but
not vice versa.

Selection

Three phase kVA = Volts x Amps x 1.73
1000

Three-Phase
13. Can buck-boost transformers be used
on three-phase systems as well as single phase
systems?
Yes. A single unit is used to buck or boost single phase
voltage — two or three units are used to buck or boost three
phase voltage. The number of units to be used in a three phase installation depends on the number of wires in the
supply line. If the three-phase supply is 4 wire Y, use three
buck-boost transformers. If the 3 -phase supply is 3 wire Y
(neutral not available), use two buck-boost transformers.
Refer to three-phase selection charts.
14. Should buck-boost transformers be used
to develop a three-phase 4 wire Y circuit from a
three-phase 3 wire delta circuit?
No. A three phase “wye” buck-boost transformer connection
should be used only on a 4 wire source of supply. A delta to
wye connection does not provide adequate current capacity to
accommodate unbalanced currents flowing in the neutral wire
of the 4 wire circuit.
3 PHASE CONNECTIONS
INPUT
(SUPPLY SYSTEM)

DESIRED OUTPUT
CONNECTION

DELTA
3 wire

WYE
3 or 4 wire

DO NOT USE

OPEN DELTA
3 wire

WYE
3 or 4 wire

DO NOT USE

WYE
3 or 4 wire

CLOSED DELTA
3 wire

DO NOT USE

WYE
4 wire

WYE
3 or 4 wire

OK

WYE
3 or 4 wire

OPEN DELTA
3 wire

OK

CLOSED DELTA
3 wire

OPEN DELTA
3 wire

OK

15. Why isn’t a closed delta buck-boost
connection recommended?
A closed delta buck-boost auto transformer connection
requires more transformer kVA than a “wye” or open delta
connection and phase shifting occurs on the output.
Consequently the closed delta connection is more
expensive and electrically inferior to other three-phase
connections.

18. How do you select a buck-boost
transformer?
Refer to the selection steps on page 101 for easy 4-step
selection, then go to the charts. Also, pages 12 and 13 are
helpful for determining buck-boost kVA when only the H.P.
rating of a motor is available.

Nameplate Data
19. Why are buck-boost transformers
shipped from the factory as insulating
transformers and not preconnected at the factory
as autotransformers?
A four winding buck-boost transformer can be auto connected
eight different ways to provide a multitude of voltage and
kVA output combinations. The proper transformer connection
depends on the user’s supply voltage, load voltage and load
kVA. Consequently, it is more feasible for the manufacturer to
ship the unit as an insulating transformer and allow the user
to connect it on the job site in accordance with the available
supply voltage and requirements of his load.
20. Why is the isolation transformer kVA
rating shown on the nameplate instead of the
autotransformer kVA rating?
The kVA rating of a buck-boost transformer when auto
connected depends on the amount of voltage buck or boost.
Since the amount of voltage buck or boost is different for
each connection, it is physically impossible to show all of the
various voltage combinations and attainable kVA ratings on the
nameplate. A connection chart showing the various attainable
single phase and three-phase connections is packed with
each unit.

Safety
21. Do buck-boost transformers present a safety
hazard usually associated with autotransformers?
No. Most autotransformers, if they are not of the buck-boost
variety, change voltage from one voltage class to another.
(Example 480V to 240V) In a system where one line is
grounded, the user thinks he has 240V; yet due to the primary
and secondary being tied together, it is possible to have 480V
to ground from the 240V output. A buck-boost transformer only
changes the voltage a small amount, such as 208V to 240V.
This small increase does not represent a safety hazard, as
compared to a buck of 480V to 240V. Refer to Figure on the
following page.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 7_0412.indd 91

91

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS
An autotransformer changes or transforms only a portion of
the electrical energy it transmits. The rest of the electrical
energy flows directly through the electrical connections
between the primary and secondary. An isolation transformer
(insulating transformer) changes or transforms all of the
electrical energy it transmits.

240V OUTPUT
LINE TO LINE

480V
INPUT

400 VOLTS
LINE TO GROUND
(POTENTIAL SAFETY
HAZARD)

Consequently, an autotransformer is smaller, lighter in weight,
and less costly than a comparable kVA size insulating
transformer.

Sound Levels
22. Are buck-boost transformers as quiet as
standard isolation transformers?
Yes. However, an auto-connected buck-boost transformer will
be quieter than an isolation transformer capable of handling
the same load. The isolation transformer would have to be
physically larger than the buck-boost transformer, and small
transformers are quieter than larger ones. (Example) 1 kVA —
40 db; 75 kVA — 50 db. (db is a unit of sound measure).

Cost and Life Expectancy
23. How does the cost of a buck-boost
transformer compare to that of an insulating
transformer — both capable of handling the same
load?
For the most common buck-boost applications, the dollar
savings are generally greater than 75% compared to the use
of an insulating type distribution transformer for the same
application.

Please refer to Question 27 for additional information on autotransformers.
Buck-boost transformers are frequently field-connected as
autotransformers.
26. Buck-boost transformers are almost
always installed as auto-transformers. Does the
N.E.C. (National Electrical Code) permit
the use of autotransformers?
Yes. Please refer to N.E.C. Article 450-4, “Autotransformers
600 Volts, Nominal, or Less.” Item (a) explains how to
overcurrent protect an autotransformer; item (b) explains that
an insulating transformer such as a buck-boost transformer
may be field connected as an autotransformer.

24. What is the life expectancy of a buck
boost transformer?
The life expectancy of a buck-boost transformer is the same
as the life expectancy of other dry type transformers.

27. When a buck-boost transformer is
connected as an autotransformer such as
boosting 208V to 230V, the kVA is greatly
increased. What is the procedure for determining
the size (ampere rating) of the overcurrent
protective device such as a fuse or circuit
breaker?
The National Electrical Code Article 450-4 addresses
overcurrent protection of autotransformers. A copy is
reproduced below for easy reference.

National Electrical Code

450-4. Autotransformers 600 Volts, Nominal, or Less.

25. Your catalog indicates that a buck-boost
transformer is suitable for connecting as an
AUTOTRANS-FORMER. What is the definition of
an autotransformer and how does it differ from an
isolation transformer?
An autotransformer is a transformer in which the primary
(input) and the secondary (output) are electrically connected
to each other. An isolation transformer, also known as an
insulating transformer, has complete electrical separation
between the primary (input) and the secondary (output). This
is illustrated in the drawing below.

(a) Overcurrent Protection. Each autotransformer 600
volts, nominal, or less shall be protected by an individual
overcurrent device installed in series with each ungrounded
input conductor. Such overcurrent device shall be rated or
set at not more than 125 percent of the rated full-load input
current of the autotransformer. An overcurrent device shall
not be installed in series with the shunt winding (the winding
common to both the input and the output circuits) of the
autotransformer between Points A and B as shown in Diagram
450-4.
Diagram 450-4

SECONDARY
(OUTPUT)

PRIMARY
(INPUT)

SECONDARY
(OUTPUT)

PRIMARY
(INPUT)

A
ISOLATION
TRANSFORMER

AUTOTRANSFORMER

SHUNT WINDING(S)

(ALSO CALLED
“INSULATING TRANSFORMER”)

B

92

Section 7_0412.indd 92

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

Exception: Where the rated input current of an
autotransformer is 9 amperes or more and 125 percent of this
current does not correspond to a standard rating of a fuse or
non-adjustable circuit breaker, the next higher standard
rating described in Section 240-6 shall be permitted. When
the rated input current is less than 9 amperes, an overcurrent
device rated or set at not more than 167 percent of the input
current shall be permitted.

When this 1 kVA unit is connected as an autotransformer for
this voltage combination, its kVA rating is increased to 9.58 kVA
(may also be expressed as 9,580 VA). This is the rating to
be used for determining the full load input amps and the
sizing of the overcurrent protect device (fuse or breaker) on
the input.

(b) Transformer Field-Connected as an Autotransformer.
A transformer field-connected as an autotransformer shall
be identified for use at elevated voltage.

9,580 Volt Amps = 46 Amps
208 Volts

28. I have noted the reprint of the N.E.C.
(National Electrical Code), Article 450-4 shown in
the previous question covering autotransformer
overcurrent protection. Could you explain this
article in detail by citing an example?
An example of an everyday application is always a good
way to explain the intent of the “Code.” Example: A 1 kVA
transformer Catalog No. T111683 has a primary of 120 x
240V and a secondary of 12 x 24V. It is to be connected as an
autotransformer at the time of installation to raise 208V to
230V single phase.

Full Load Input Amps =

When the full load current is greater than 9 amps, the
overcurrent protective device (usually a fuse or nonadjustable breaker) amp rating can be up to 125 percent of
the full load rating of the autotransformer input amps.
Max. amp rating of the
overcurrent device
= 46 amps x 125% = 57.5 amps
The National Electrical Code, Article 450-4 (a) Exception,
permits the use of the next higher standard ampere rating of
the overcurrent device. This is shown in Article 240-6 of the
N.E.C.
Max. size of the fuse or circuit breaker
= 60 amps

Steps for Selecting the Proper Buck-Boost Transformer
You should have the following information before selecting
a buck-boost transformer.
Line Voltage — The voltage that you want to buck (decrease)
or boost (increase). This can be found by measuring the
supply line voltage with a voltmeter.
Load Voltage — The voltage at which your equipment is
designed to operate. This is listed on the nameplate of the
load equipment.
Load kVA or Load Amps — You do not need to know both
— one or the other is sufficient for selection purposes. This
information usually can be found on the nameplate of the
equipment that you want to operate.
Frequency — The supply line frequency must be the same as
the frequency of the equipment to be operated — either 50 or
60 cycles.
Phase — The supply line should be the same as the
equipment to be operated — either single or three phase.

Four Step Selection
1. A series of LINE VOLTAGE and LOAD
VOLTAGE combinations are listed across the top of
each selection chart. Select a LINE VOLTAGE and LOAD
VOLTAGE combination from ANY of the charts that comes
closest to matching the LINE VOLTAGE and LOAD
VOLTAGE of your application.
2. Read down the column you have selected until you reach
either the LOAD kVA or LOAD AMPS of the equipment you
want to operate. You probably will not find the exact value of
LOAD kVA or LOAD AMPS so go to the next higher rating.
3. From this point, read across the column to the far lefthand side and you have found the catalog number of
the exact buck-boost transformer you need. Refer to the
catalog number listing on page 103 for dimensions.
4. CONNECT the transformer according to the connection
diagram specified at the bottom of the column where you
selected YOUR LINE VOLTAGE and LOAD VOLTAGE
combination. Connection diagrams are found at the end of
this section.
This same connection information is packed with each
buck-boost transformer.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 7_0412.indd 93

93

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

SELECTION CHARTS

SINGLE PHASE

GROUP I
SINGLE PHASE

BOOSTING

BUCKING

Line Voltage
(Available)

95

100

105

110

189

208

215

220

125

132

230

245

250

252

Load Voltage
(Output)

114

120

115

120

208

230

237

242

113

120

208

222

227

240

0.24
2.08

0.25
2.08

0.48
4.17

0.50
4.17

0.43
2.08

0.48
2.08

0.49
2.08

0.50
2.08

CAT. NO.
Load

T181047

T181048

Max. Size of
Fuse or Breaker

6

6

10

10

6

6

6

6

kVA
Load
Amps

0.47
4.17

0.50
4.17

0.96
8.33

1.01
8.33

0.87
4.17

0.96
4.17

0.99
4.17

1.01
4.17

Max. Size of
Fuse or Breaker

10

10

15

15

10

10

10

10

0.71
6.25

0.75
6.25

1.43
12.50

1.51
12.50

1.30
6.25

1.43
6.25

1.48
6.25

1.51
6.25

15

15

20

20

15

15

15

15

1.19
10.42

1.25
10.40

2.40
20.80

2.50
20.80

2.16
10.40

2.39
10.40

25

25

40

30

15

15

2.37
20.83

2.50
20.83

4.80
41.67

5.00
41.67

4.33
20.83

4.79
20.83

35

35

60

60

30

30

3.56
31.25

3.75
31.25

7.17
62.50

7.56
62.50

6.50
31.25

7.19
31.25

50

50

90

90

45

45

4.75
41.67

5.00
41.67

9.58
83.31

10.00
83.31

8.66
41.67

9.58
41.67

70

70

125

125

60

60

13.00
62.50

14.30
62.50

90

90

17.30
83.30

19.16
83.30

125

125

Load

T181049

T211688 ①

T211689 ①

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111687

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111686

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111685

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111684

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111683

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181052

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181051

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181050

kVA
Amps

kVA
Amps

Max. Size of
Fuse or Breaker
Load

kVA
Amps

Max. Size of
Fuse or Breaker
kVA
Load
Amps
Max. Size of
Fuse or Breaker

See Page 110 For Connection Diagrams

7.12
62.50
100

100

9.50
83.30
125

7.50 14.40 15.10
62.50 125.00 125.00
175

175

10.00 19.20 20.20
83.30 166.60 166.60
125

250

250

14.20 15.00 28.80 30.00
125.00 125.00 250.00 250.00
200

200

350

350

23.70 25.00 47.90 50.00
208.00 208.00 416.60 416.60
350

350

600

600

35.60 37.50 71.90 75.60
312.50 312.50 625.00 625.00
500

500

1000

1000

47.50 50.00 95.80 100.00
416.60 416.60 833.30 833.30

2.46 2.52
10.40 10.40
15

15

4.93 5.04
20.83 20.83
30

30

7.41 7.56
31.25 31.25
45

45

9.87 10.00
41.67 41.67
60

60

14.80 15.10
62.50 62.50
90

90

19.70 20.10
83.30 83.30
125

125

26.00 28.70 29.60 30.30
125.00 125.00 125.00 125.00
175

175

175

175

43.30 47.80 49.30 50.30
208.00 208.00 208.00 208.00
300

300

300

300

65.00 71.80 74.00 75.60
312.50 312.50 312.50 312.50
450

450

450

450

86.60 95.80 98.70 101.00
416.60 416.60 416.60 416.60

0.52
4.60
10
1.04
9.20
15

0.54
4.60
10
1.08
9.20
15

1.56
1.62
13.80 13.80
20

20

2.60
2.75
22.80 22.80
30

30

5.20
5.40
46.80 46.80
60

60

7.80
8.15
68.50 69.50
80

80

10.40 10.80
91.50 91.50
110

110

15.00 16.20
138.00138.00
150

175

20.80 21.60
183.00183.00
225

0.47
2.28

225

0.50
2.28
6

0.95
4.56
10
1.42
6.86
15
2.37
11.40
15
4.47
22.80
30
7.10
34.40
40
9.50
45.80
60
14.24
68.60
80
19.00
91.60
110

0.52
2.28
6

1.00
4.56
10
1.50
6.86
15
2.50
11.40
15
5.00
22.80
30
7.50
34.40
40
10.00
45.80
60
15.00
68.60
80
20.00
91.60
110

1.02
4.37
6

1.04
4.58

10
2.04
8.75

10
1.56
6.86

15
3.00
13.10

15
2.60
11.40

15
5.10
21.80

15
5.20
22.80

30
10.20
43.70

30
7.80
34.40

60
15.30
65.50

40
10.00
45.80
50

80
20.40
87.50
110

15.60 30.60
68.60 132.00
80

175

20.30 40.80
91.20 175.00
110

225

31.20 32.50 28.50 30.00 31.20 61.00
275.00275.00 136.80 136.80 136.80 263.00
350

350

175

175

175

350

52.00 54.00 47.40 50.00 52.00 102.00
457.00457.00 228.00 228.00 228.00 437.00
600

600

300

300

300

600

78.00 81.00 71.00 76.00 78.00 153.00
688.00688.00 344.00 344.00 344.00 655.00
800

800

400

400

400

800

104.00108.00 95.00 100.00 104.00 204.00
915.00915.00 458.00 458.00 458.00 875.00

700

700

1200

1200

600

600

600

600

1200

1200

600

600

600

1200

D

D

C

C

H

H

H

H

F

F

I

I

I

E

① See chart on page 101, for number of leads per termination.
NOTE: Inputs and Outputs may be reversed; kVA capacity remains constant. All applications above bold face line are suitable for 50/60 Hz. All applications below bold
face line are suitable for 60 Hz only.
With larger kVA buck-boost units, it is necessary to utilize multiple conductors on the secondary (X) terminals as shown in the chart on page 101.

94

Section 7_0412.indd 94

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

GROUP II
SINGLE PHASE

BOOSTING

BUCKING

Line Voltage
(Available)

95

100

105

208

215

215

220

225

135

240

240

245

250

255

Load Voltage
(Output)

120

114

119

240

244

230

235

240

119

208

225

230

234

239

0.19
1.56

0.36
3.13

0.37
3.13

0.38
1.56

0.38
1.56

0.72
3.13

0.73
3.13

0.75
3.13

6

6

6

6

6

6

6

6

0.38
3.13

0.71
6.25

0.74
6.25

0.75
3.13

0.76
3.13

1.44
6.25

1.47
6.25

1.50
6.25

10

15

6

6

15

15

15

15

0.56
4.69

1.07
9.38

1.12
9.38

1.13
4.69

1.14
4.69

2.16
9.38

2.20
9.38

2.25
9.38

Max. Size of
Fuse or Breaker

10

15

15

10

10

15

15

15

kVA
Load
Amps

0.94
7.81

1.78
15.63

1.86
15.63

1.88
7.81

1.91
7.81

3.59
15.63

Max. Size of
Fuse or Breaker

15

25

25

15

15

25

1.88
15.63

3.56
31.25

3.72
31.25

3.75
15.63

3.81
15.63

7.19
31.25

25

45

45

25

25

45

2.81
23.44

5.34
46.88

5.58
46.88

5.63
23.44

5.72
23.44

10.78
46.88

40

70

70

40

40

70

3.75
31.25

7.13
62.50

7.44
62.50

7.50
31.25

7.63
31.25

14.38
62.50

50

90

90

50

50

90

5.63
46.90

10.69
93.80

11.16
93.80

11.25
46.90

11.44
46.90

21.56
93.80

80

150

150

70

70

125

CAT. NO.
Load

T181054

Max. Size of
Fuse or Breaker
Load

T181055

T181057

Load

T181058

T213078 ①

T213079 ①

kVA
Amps

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113077

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113076

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113075

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113074

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113073

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181059

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181056

kVA
Amps

kVA
Amps

Max. Size of
Fuse or Breaker
Load

kVA
Amps

Max. Size of
Fuse or Breaker
Load

kVA
Amps

Max. Size of
Fuse or Breaker

See Page 110 For
Connection Diagrams

7.50 14.25 14.88
62.50 125.00 125.00
100

200

200

11.25 21.38 22.31
93.80 187.50 187.50
150

300

300

15.00
62.50
90
22.50
93.80
150

18.75 35.63 37.19 37.50
156.30 312.50 312.50 156.30
250

450

450

225

28.10 53.40 55.80 56.30
234.40 468.80 468.80 234.40
400

700

700

350

37.50 71.30 74.40 75.00
312.50 625.00 625.00 312.50

3.67 3.75
15.63 15.63
25

70

125

15.25 28.75 29.38 30.00
62.50 125.00 125.00 125.00
90

175

175

175

22.88 43.13 44.06 45.00
93.80 187.50 187.50 187.50
150

250

250

250

38.13 71.88 73.44 75.00
156.30 312.50 312.50 312.50
225

450

450

450

57.20 107.80 110.20 112.50
234.40 468.80 468.80 468.80
350

700

700

700

76.30 143.80 146.90 150.00
312.50 625.00 625.00 625.00

0.74
3.54

20

1.11
5.31
6
1.84
8.85
15

20

6.32
5.53
53.13 26.56
60

30

8.43
7.37
70.83 35.42
80

6

40

1.53
6.67
15
2.30
10.00

15
3.75
16.67

15
3.83
16.67

20
7.50
33.33

20
7.67
33.33

40
11.25
50.00

40
11.50
50.00

60
15.00
66.67

0.78
3.33
6

15
2.25
10.00

4.21
3.68
35.42 17.71
40

0.77
3.33

1.50
6.67
6

15
2.11
17.71

90

22.03 22.50
93.80 93.80
125

1.26
10.63

0.75
3.33
3

15

70

14.69 15.00
62.50 62.50
90

0.84
7.08

45

11.02 11.25
46.88 46.88

0.37
1.77
6

25

7.34 7.50
31.25 31.25
45

0.42
3.54

60
15.33
66.67

80

80

0.80
3.33
6

1.56
6.67
15
2.34
10.00
15
3.90
16.67
20
7.80
33.33
40
11.70
50.00
60
15.60
66.67
80

6
1.59
6.67
15
2.39
10.00
15
3.98
16.67
20
7.97
33.33
40
11.95
50.00
60
15.93
66.67
80

12.64 11.05 22.50 23.00 23.40 23.90
106.30 53.10 100.00 100.00 100.00 100.00
125

60

125

125

125

125

16.86 14.73 30.00 30.67 31.20 31.87
141.70 70.80 133.30 133.30 133.30 133.30
175

80

175

175

175

175

25.29 22.10 45.00 46.00 46.80 47.80
212.50106.30 200.00 200.00 200.00 200.00
250

125

250

250

250

250

42.15 36.83 75.00 76.67 78.00 79.67
354.20177.10 333.30 333.30 333.30 333.30
400

200

400

400

400

400

63.20 55.30 112.50 115.00 117.00 119.50
531.30265.60 500.00 500.00 500.00 500.00
600

300

600

600

600

600

84.30 73.70 150.00 153.30 156.00 159.30
708.30354.20 666.70 666.70 666.70 666.70

500

1000

1000

450

450

1000

1000

1000

800

400

800

800

800

800

D

C

C

H

H

G

G

G

F

I

E

E

E

E

① See chart on page 101.
NOTE: Inputs and Outputs may be reversed; kVA capacity remains constant. All applications above bold face line are suitable for 50/60 Hz. All applications below
bold face line are suitable for 60 Hz only.
With larger kVA buck-boost units, it is necessary to utilize multiple conductors on the secondary (X) terminals as shown in the chart on page 101.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 7_0412.indd 95

95

6/13/12 11:54 AM

7

SECTION

BUCK-BOOST TRANSFORMERS

GROUP III
SINGLE PHASE

BOOSTING

BUCKING

Line Voltage
(Available)

230

380

416

425

430

435

440

440

450

460

277

480

480

504

Load Voltage
(Output)

277

420

457

467

473

457

462

484

472

483

230

436

456

480

0.29
1.04

0.44
1.04

0.48
1.04

0.49
1.04

0.49
1.04

0.95
2.08

0.96
2.08

0.50
1.04

0.98
2.08

1.01
2.08

3

3

3

3

3

6

6

3

6

6

0.58
2.08

0.87
2.08

0.95
2.08

0.97
2.08

0.99
2.08

1.90
4.17

1.93
4.17

1.01
2.08

1.97
4.17

2.01
4.17

6

6

6

6

6

10

10

6

10

10

0.87
3.13

1.31
3.13

1.43
3.13

1.46
3.13

1.48
3.13

2.86
6.25

2.89
6.25

1.51
3.13

2.95
6.25

3.02
6.25

10

6

6

6

6

15

15

6

15

15

1.44
5.21

2.19
5.21

2.38
5.21

2.43
5.21

2.46
5.21

4.76
5.21

4.81
10.42

15

10

10

10

10

15

15

2.89
10.42

4.38
10.42

4.76
10.42

4.86
10.42

4.93
10.42

9.52
20.83

20

15

15

15

15

30

4.33
15.63

6.56
15.63

7.14
15.63

7.30
15.63

7.39
15.63

14.28
31.25

25

25

25

25

25

45

5.77
20.83

8.57
20.83

9.52
20.83

9.73
20.83

9.85
20.83

19.04
41.67

35

30

30

30

30

60

8.66
31.25

13.13
31.25

14.28
31.25

14.59
31.25

14.78
31.25

28.56
62.50

50

50

45

45

45

90

11.54
41.67

17.50
41.67

19.04
41.67

19.46
41.67

19.71
41.67

38.08
83.33

70

60

60

60

60

110

17.31
62.50

26.25
62.50

28.56
62.50

29.19
62.50

100

90

90

90

CAT. NO.
Load

T181061

Max. Size of
Fuse or Breaker
Load

T181062

T243571 ①

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T243570

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137924

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137923

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137922

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137921

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137920

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181066

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181065

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181064

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181063

kVA
Amps

kVA
Amps

Max. Size of
Fuse or Breaker
Load

kVA
Amps

Max. Size of
Fuse or Breaker

See Page 110 For
Connection Diagrams

28.90 43.80 47.60 48.60
104.20 104.20 104.20 104.20
175

150

150

150

43.30 65.60 71.40 73.00
156.30 156.30 156.30 156.30
250

225

225

225

57.70 87.50 95.20 97.30
208.30 208.30 208.30 208.30

2.52 4.92 5.03
5.21 10.42 10.42
10

15

15

9.62 5.04 9.83 10.06
20.83 10.42 20.83 20.83
30

15

30

30

14.44 7.56 14.75 15.09
31.25 15.63 31.25 31.25
45

25

45

45

19.25 10.08 19.67 20.13
41.67 20.83 41.67 41.67
60

30

60

60

28.88 15.13 29.50 30.19
62.50 31.25 62.50 62.50
90

45

90

90

38.50 20.17 39.33 40.25
83.33 41.67 83.33 83.33
110

60

110

110

29.56 57.13 57.75 30.25 59.00 60.38
62.50 125.00 125.00 62.50 125.00 125.00
90

175

175

90

175

175

49.30 95.20 96.20 50.40 98.30 100.60
104.20 208.30 208.30 104.20 208.30 208.30
150

300

300

150

300

300

73.90 142.80 144.40 75.60 147.50 150.90
156.30 312.50 312.50 156.30 312.50 312.50
225

450

450

225

450

450

98.50 190.40 192.50 100.80 196.70 201.30
208.30 416.70 416.70 208.30 416.70 416.70

0.29
1.25

0.50
1.15
3

0.58
2.50

1.05
2.29
3

1.00
2.29
6

0.86
3.75

1.50
3.44

1.44
6.25
10

6
2.50
5.73
10

15

4.31
7.49
18.75 17.19
20

20

5.75
9.99
25.00 22.92
30

30

8.63 14.99
37.50 34.38
40

40

11.50 19.98
50.00 45.83
60

10
3.14
6.88

2.88
5.00
12.50 11.46
15

6
2.09
4.58

6

6

1.10
2.29

60

15
5.23
11.46
15
10.45
22.92
30
15.68
34.38
45
20.90
45.83
60
31.35
68.75
90
41.80
91.67
110

6
2.20
4.58
10
3.30
6.88
15
5.50
11.46
15
11.00
22.92
30
16.50
34.38
45
22.00
45.83
60
33.00
68.75
90
44.00
91.67
110

17.25 29.98 62.70 66.00
75.00 68.80 137.50 137.50
80

80

175

175

28.80 50.00 104.50 110.00
125.00114.60 229.20 229.20
150

150

300

300

43.10 74.90 156.80 165.00
187.50171.90 343.80 343.80
200

200

450

450

57.50 99.90 209.00 220.00
250.00229.20 458.30 458.30

350

300

300

300

300

600

600

300

600

600

300

300

600

600

D

H

H

H

H

G

G

H

G

G

J

I

E

E

① See chart on page 101.
NOTE: Inputs and Outputs may be reversed; kVA capacity remains constant. All applications above bold face line are suitable for 50/60 Hz. All applications
below bold face line are suitable for 60 Hz only.

96

Section 7_0412.indd 96

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

SELECTION CHARTS

THREE PHASE

GROUP I
THREE PHASE
Line Voltage
(Available)
Load Voltage
(Output)

BOOSTING

BUCKING

189Y 196Y
109Y 113Y

201Y
116Y

208Y
120Y

189

208

220

219

230

250

255

264

208

234

240

230

208

230

242

208

208

227

232

240

1.50
4.17

0.84
2.08

0.87
2.08

1.66
4.17

0.75
2.08

0.83
2.08

0.87
2.08

10

6

6

10

6

6

6

3.00
8.33

1.69
4.17

1.73
4.17

3.32
8.33

1.50
4.17

1.66
4.17

1.75
4.17

15

10

10

15

10

10

10

4.50
12.50

2.53
6.25

2.60
6.25

4.98
12.50

2.25
6.25

2.49
6.25

2.62
6.25

20

15

15

20

15

15

15

7.51
20.83

4.22
10.42

4.33
10.42

8.30
20.83

3.75
10.42

30

20

20

30

15

15.01
41.67

8.44
20.83

8.66
20.83

16.60
41.67

7.51
20.83

60

35

35

60

30

22.52
62.50

12.67
31.25

12.99
31.25

24.90
62.50

11.26
31.25

90

50

50

90

45

30.02
83.33

16.89
41.67

17.32
41.67

33.20
83.33

15.01
41.67

125

70

70

125

60

45.03
125.00

25.33
62.50

25.98
62.50

175

100

100

60.04
166.67

33.77
83.33

34.64
83.33

250

125

125

CAT. NO.
Load

T181047

Max. Size of
Fuse or Breaker
Load

T181048

T181052

kVA
Load
Amps
Max. Size of
Fuse or Breaker

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T211689 ①

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T211688 ①

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111687

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111686

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111685

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T111684

kVA
Amps

Max. Size of
Fuse or Breaker

Load

T111683

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181051

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181050

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181049

kVA
Amps

kVA
Amps

Max. Size of
Fuse or Breaker

Quantity Required
See Page 102 For
Connection Diagrams

90.07 50.66 51.96
250.00 125.00 125.00
350

200

200

150.11 84.44 86.60
416.67 208.33 208.33
600

350

350

225.17 126.66 129.90
625.00 312.50 312.50
1000

500

500

300.22 168.87 173.21
833.33 416.67 416.67

49.80
125.00
175
66.40
167.67
250

22.52
62.50
90
30.02
83.33
125

4.15 4.37
10.42 10.42
15

15

8.30 8.73
20.83 20.83
30

30

12.45 13.10
31.25 31.25
45

45

16.60 17.46
41.67 41.67
60

60

24.90 26.20
62.50 62.50
90

90

33.20 34.93
83.33 83.33
125

125

99.59 45.03 49.80 52.39
250.00 125.00 125.00 125.00
350

175

175

175

165.99 75.06 82.99 87.32
416.67 208.33 208.33 208.33
600

300

300

300

248.98 112.58 124.49 130.99
625.00 312.50 312.50 312.50
1000

450

450

450

331.98 150.11 165.99 174.65
833.33 416.67 416.67 416.67

1.58
4.39

0.83
2.30
10

0.90
2.29

3.16
8.77

6
1.66
4.61

15
4.74
13.16
20

10
2.49
6.91
15

7.90
4.15
21.94 11.52
30

15

15.80 8.30
43.87 23.04
60

30

23.71 12.45
65.81 34.56
80

40

31.61 16.60
87.74 46.07
110

60

47.41 24.90
131.61 69.11
175

80

63.22 33.20
175.48 92.15
225

0.92
2.29

110

6

0.95
2.29

1.80
4.59
10
2.71
6.88
15
4.51
11.47
15
9.02
22.94
30
13.53
34.42
40
18.04
45.89
60
27.06
68.83
80
36.08
91.78
110

6
1.84
4.58
10
2.76
6.87
15
4.60
11.45
15
9.20
22.90
30
13.80
34.35
40
18.40
45.80
60
27.60
68.70
80
36.81
91.59
110

6
1.91
4.58
10
2.86
6.88
15
4.76
11.46
15
9.53
22.92
30
14.29
34.38
40
19.05
45.83
60
28.58
68.75
80
38.11
91.67
110

94.83 49.80 54.13 55.21 57.16
263.22138.22 137.67 137.39 137.50
350

175

175

175

175

158.05 82.99 90.21 92.02 95.26
438.70230.37 229.44 228.99 229.17
600

300

300

300

300

237.07124.49 135.32 138.02 142.89
658.05345.55 344.16 343.48 343.75
800

400

400

400

400

316.10165.99 180.42 184.03 190.53
877.40460.74 458.88 457.97 458.33

1200

700

700

1200

600

600

600

1200

600

600

600

600

3

3

3

3

2

2

2

2

2

2

2

2

A-A

F-F

F-F

A-A

B-B

B-B

B-B

C-C

E-E

E-E

E-E

E-E

① See chart on page 101.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 7_0412.indd 97

97

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

GROUP II
THREE PHASE

BOOSTING

BUCKING

Line Voltage
(Available)

183Y
106Y

208Y
120Y

195

208

225

240

245

250

256

265

272

Load Voltage
(Output)

208

236

208

240

240

208

230

234

240

234

240

1.13
3.13

1.28
3.13

1.13
3.13

0.63
1.56

1.30
3.13

6

6

6

3

6

2.25
6.25

2.55
6.25

2.25
6.25

1.27
3.13

2.60
6.25

15

15

15

6

15

3.38
9.38

3.83
9.38

3.38
9.38

1.90
4.69

3.90
9.38

15

15

15

10

15

5.63
15.63

6.39
15.63

5.63
15.63

3.17
7.81

6.50
15.63

25

25

25

15

25

11.26
31.25

12.77
31.25

11.26
31.25

6.33
15.63

12.99
31.25

45

45

45

25

45

16.89
46.88

19.16
46.88

16.89
46.88

9.50
23.44

19.49
46.88

70

70

70

35

70

22.52
62.50

25.55
62.50

22.52
62.50

12.67
31.25

25.98
62.50

90

90

90

45

90

33.77
93.75

38.32
93.75

33.77
93.75

19.00
46.88

38.97
93.75

150

150

125

70

125

CAT. NO.
Load

T181054

Max. Size of
Fuse or Breaker
Load

T181055

Quantity Required
See Page 110 For
Connection Diagrams

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T213079 ①

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T213078 ①

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113077

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113076

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113075

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113074

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T113073

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181059

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181058

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181057

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181056

kVA
Amps

kVA
Amps

Max. Size of
Fuse or Breaker

45.03
125.00
200
67.55
187.50
300
112.58
312.50
450
166.87
468.75
700

51.10
125.00
200
76.64
187.50
300
127.74
312.50
450
191.61
468.75
700

45.03
125.00
175
67.55
187.50
250
112.58
312.50
450
168.87
468.75
700

25.33 51.96
62.50 125.00
90

175

38.00 77.94
93.75 187.50
150

250

63.33 129.90
156.25 312.50
225

450

94.99 194.86
234.38 468.75
350

700

126.66 259.81
312.50 625.00

0.56
1.56

1.33
3.33
3

1.35
3.34

1.13
3.13

6
2.65
6.66

6
1.69
4.69
10
2.81
7.81
15

15
3.98
9.99
15
6.63
16.64
20

5.63 13.26
15.63 33.29
20

40

8.44 19.89
23.44 49.93
30

60

11.26 26.52
31.25 66.58
35

80

1.39
3.33
6

2.71
6.68
15
4.06
10.02
15
6.77
16.69
20
13.53
33.39
40
20.30
50.08
60
27.06
66.67
80

0.72
1.77
6

2.77
6.67

125

125

6.93
16.67

13.86
33.33

175

175

10
3.59
8.85
15
7.17
17.69
20
10.76
26.54

60
27.71
66.67

1.47
3.54

2.15
5.31

40
20.78
50.00

3

6

20

30
14.34
35.39

80

40
21.52
53.08

125

22.52 53.04 54.13 55.43
62.50 133.15 133.55 133.33
70

1.43
3.54

15

16.89 39.87 40.59 41.57
46.88 99.86 100.16 100.00
60

3

15
4.16
10.00

0.74
1.77

60
28.69
70.78

175

80

6
2.21
5.31
10
3.68
8.85
15
7.36
17.71
20
11.04
26.56
30
14.72
35.42
40
22.08
53.13
60
29.44
70.83
80

33.77 79.57 81.19 83.14 43.03 44.17
93.75 199.73 200.32 200.00 106.17 106.25
110

250

250

250

125

125

56.29 132.61 135.32 138.56 71.72 73.50
156.25332.88 333.87 333.33 176.95 176.80
175

400

400

400

200

200

84.44 198.92 202.97 207.85 107.58 110.42
234.38499.32 500.80 500.00 265.42 265.63
300

600

600

600

300

300

225.17
625.00

255.48
625.00

225.17
625.00

1000

1000

1000

450

1000

350

800

800

800

400

400

3

3

2

2

2

2

2

2

2

2

2

A-A

A-A

G-G

B-B

G-G

D-D

C-C

C-C

C-C

E-E

E-E

112.58265.22 270.63 277.13 143.44 147.22
312.50665.76 667.74 666.67 353.90 354.17

①See chart on page 101.
NOTE: (1) Inputs and Outputs may be reversed; kVA capacity remains constant. All applications above bold face line are suitable for 50/60 Hz.
All applications below bold face line are suitable for 60 Hz only. (2) Connection Diagrams A-A and F-F cannot be reverse connected.
98

Section 7_0412.indd 98

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

GROUP III
THREE PHASE
Line Voltage
(Available)
Load Voltage
(Output)

BOOSTING
399Y
230Y
480Y
277Y

BUCKING

380

430

440

460

460

480

480

440

440

460

460

480

480

500

500

420

473

462

506

483

528

504

400

419

438

418

457

436

455

477

0.86
1.04

0.76
1.04

0.85
1.04

1.66
2.08

0.91
1.04

1.74
2.08

0.95
1.04

1.82
2.08

0.79
1.14

1.58
2.18

1.66
2.18

0.83
1.14

1.73
2.18

0.86
1.14

0.90
1.14

3

3

3

6

3

6

3

6

3

6

6

3

6

3

3

1.73
2.08

1.51
2.08

1.70
2.08

3.33
4.16

1.82
2.08

3.48
4.16

1.90
2.08

3.63
4.16

1.59
2.29

3.17
4.37

3.31
4.37

1.66
2.29

3.46
4.37

1.73
2.29

1.80
2.29

6

6

6

10

6

10

6

10

6

10

10

6

10

6

6

2.60
3.12

2.27
3.12

2.56
3.12

4.99
6.24

2.73
3.12

5.22
6.25

2.85
3.12

5.45
6.24

2.38
3.43

4.75
6.55

4.97
6.55

2.48
3.43

5.19
6.55

2.59
3.43

2.70
3.43

10

6

6

15

6

15

6

15

6

15

15

6

15

6

6

4.33
5.20

3.78
5.20

4.26 8.32
5.20 10.40

4.56
5.20

8.70
10.40

15

10

10

10

15

8.60
10.40

7.56
10.40

20

15

12.90
15.60

11.34
15.60

25

25

17.30
20.80

15.12
20.80

35

30

25.90
31.20

22.69
31.20

50

45

34.60
41.60

30.25
41.60

70

60

52.00
62.50

45.45
62.50

100

90

CAT. NO.
Load

T181061

Max. Size of
Fuse or Breaker
Load

T181062

T181065

kVA
Load
Amps
Max. Size of
Fuse or Breaker

T243570

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137924

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137923

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137922

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137921

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T137920

kVA
Amps

Max. Size of
Fuse or Breaker

Load

T181066

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181064

kVA
Amps

Max. Size of
Fuse or Breaker
Load

T181063

kVA
Amps

kVA
Amps

Max. Size of
Fuse or Breaker
kVA
Load
Amps
Max. Size of
Fuse or Breaker

T243571①

Load

kVA
Amps

Max. Size of
Fuse or Breaker
Quantity Required
See Page 110 For
Connection Diagrams

15

8.52 16.64
10.40 20.80
15

30

12.77 24.97
15.60 31.20
25

45

17.03 33.29
20.80 41.60
30

60

25.55 49.93
31.20 62.40
45

90

34.07 66.58
41.60 83.20
60

110

51.18 100.03
62.50 125.00
90

175

9.11
10.40
15
13.67
15.60
25
18.23
20.80
30
27.34
31.20
45
36.46
41.60
60

4.76 9.08
5.20 10.40
10

15

17.40 9.51 18.16
20.80 10.40 20.80
30

15

30

26.10 14.27 27.24
31.20 15.60 31.20
45

25

45

34.80 19.02 36.31
41.60 20.80 41.60
60

30

60

52.20 28.53 54.47
62.40 31.20 62.40
90

45

90

69.60 38.04 72.63
83.20 41.60 83.20
110

60

110

54.69 104.57 57.07 109.12
62.50 125.00 62.50 125.00
90

175

90

175

86.10 75.62 85.17 166.44 91.15 174.01 95.11 181.57
104.00 104.00 104.00 208.00 104.00 208.00 104.00 208.00
175

150

150

300

150

300

150

300

129.30 113.43 127.75 249.66 136.72 261.01 142.67 272.36
156.00 156.00 156.00 312.00 156.00 312.00 156.00 312.00
250

225

225

450

225

450

225

450

173.10 151.25 170.33 332.89 182.29 348.02 190.22 363.15
208.00 208.00 208.00 416.00 208.00 416.00 208.00 416.00

3.96
5.72
10

7.92 8.28
10.92 10.92
15

15

4.14
5.72

8.64
10.92

4.32
5.72

4.51
5.72

10

15

10

10

7.93 15.85 16.57 8.28 17.29 8.64 9.02
11.44 21.84 21.84 11.44 21.84 11.44 11.44
15

30

30

15

30

15

15

11.89 23.77 24.85 12.42 25.93 12.96 13.52
17.16 32.76 32.76 17.16 32.76 17.16 17.16
20

40

40

20

40

20

20

15.85 31.70 33.14 16.57 34.57 17.28 18.03
22.88 43.68 43.68 22.88 43.68 22.88 22.88
30

60

60

30

60

30

30

23.78 47.55 49.71 24.85 51.86 25.92 27.05
34.32 65.52 65.52 34.32 65.52 34.32 34.32
40

80

80

40

80

40

40

31.70 63.40 66.27 33.13 69.15 34.56 36.06
45.76 87.36 87.36 45.76 87.36 45.76 45.76
60

110

110

60

110

60

60

1.80
2.18
6
3.61
4.37
10
5.41
6.55
15
9.02
10.92
15
18.04
21.84
30
27.07
32.76
40
36.09
43.68
60
54.13
65.52
80
72.18
87.36
110

47.63 95.25 99.57 49.77 103.89 51.92 54.18 108.44
68.75 131.25 131.25 68.75 131.25 68.75 68.75 131.25
80

175

175

80

175

80

80 175

79.26 158.50 165.69 82.83 172.87 86.39 90.16 180.44
114.40 218.40 218.40 114.40 218.40 114.40 114.40 218.40
150

300

300

150

300

150

150 300

118.89 237.75 248.53 124.24 259.31 129.59 135.23 270.66
171.60 327.60 327.60 171.60 327.60 171.60 171.60 327.60
200

400

400

200

400

200

200 400

158.52 317.00 331.37 165.65 345.75 172.78 180.31 360.88
228.80 436.80 436.80 228.80 436.80 228.80 228.80 436.80

350

300

300

600

300

600

300

600

300

600

600

300

600

300

3

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

F-F

B-B

B-B

G-G

B-B

G-G

B-B

G-G

E-E

C-C

C-C

E-E

C-C

E-E

E-E

C-C

300 600

①See chart on page 101.
NOTE: (1) Inputs and Outputs may be reversed; kVA capacity remains constant. All applications above bold face line are suitable for 50/60 Hz.
All applications below bold face line are suitable for 60 Hz only. (2) Connection Diagrams A-A and F-F cannot be reverse connected.
ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 7_0412.indd 99

99

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

SPECIFICATIONS ①
GROUP I
120 X 240 PRIMARY VOLTS — 12/24 SECONDARY VOLTS — 60 Hz
CATALOG
NUMBER

INSULATING
TRANSFORMER
RATING

SECONDARY MAXIMUM
CURRENT OUTPUT
12 V
24 V

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

DEPTH

APPROX.
NET WEIGHT
LBS. (KG.)

DIMENSIONAL
DRAWINGS

T181047
T181048
T181049

0.05 kVA
0.10 kVA
0.15 kVA

4.16
8.32
12.52

2.08
4.16
6.25

6.41 (16.3)
7.16 (18.2)
7.16 (18.2)

3.14 (8.0)
3.89 (9.9)
3.89 (9.9)

3.05 (7.7)
3.67 (9.3)
3.67 (9.3)

4 (1.8)
5 (2.3)
7 (3.2)

A
A
A

T181050
T181051
T181052

0.25 kVA
0.50 kVA
0.75 kVA

20.80
41.60
62.50

10.40
20.80
31.25

8.68 (22.0)
9.06 (23.0)
9.68 (24.6)

4.08 (10.4)
4.37 (11.1)
4.75 (12.1)

3.88 (9.9)
4.20 (10.7)
4.51 (11.5)

10 (4.5)
15 (6.8)
19 (8.6)

B
B
B

T111683
T111684
T111685
T111686

1.00 kVA
1.50 kVA
2.00 kVA
3.00 kVA

83.20
125.00
166.00
250.00

41.60
62.50
83.20
125.00

10.50 (26.7)
11.62 (29.5)
13.00 (33.0)
11.50 (29.2)

5.50 (14.0)
5.50 (14.0)
5.50 (14.0)
10.31 (26.2)

5.13 (13.0)
5.13 (13.0)
5.13 (13.0)
7.13 (18.1)

24 (10.9)
30 (13.6)
38 (17.2)
55 (24.9)

B
B
B
C

T111687
T211688
T211689

5.00 kVA
7.50 kVA
10.00 kVA

416.60
625.00
833.00

208.00
312.50
416.60

14.38 (36.5)
20.81 (52.9)
20.81 (52.9)

10.31 (26.2)
11.12 (28.2)
11.75 (29.8)

7.13 (18.1)
10.84 (27.5)
11.59 (29.4)

75 (34.0)
125 (56.7)
160 (72.6)

C
D
D

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

DEPTH

APPROX.
NET WEIGHT
LBS. (KG.)

DIMENSIONAL
DRAWINGS

GROUP II
120 X 240 PRIMARY VOLTS — 16/32 SECONDARY VOLTS — 60 Hz
CATALOG
NUMBER

INSULATING
TRANSFORMER
RATING

SECONDARY MAXIMUM
CURRENT OUTPUT
16 V
32 V

T181054
T181055
T181056

0.05 kVA
0.10 kVA
0.15 kVA

3.12
6.25
9.38

1.56
3.12
4.69

6.41 (16.3)
7.16 (18.2)
7.16 (18.2)

3.14 (8.0)
3.89 (9.9)
3.89 (9.9)

3.05 (7.7)
3.67 (9.3)
3.67 (9.3)

4 (1.8)
5 (2.3)
7 (3.2)

A
A
A

T181057
T181058
T181059

0.25 kVA
0.50 kVA
0.75 kVA

15.60
31.20
46.90

7.80
15.60
23.40

8.68 (22.0)
9.06 (23.0)
9.68 (24.6)

4.08 (10.4)
4.37 (11.1)
4.75 (12.1)

3.88 (9.9)
4.20 (10.7)
4.51 (11.5)

10 (4.5)
15 (6.8)
19 (8.6)

B
B
B

T113073
T113074
T113075
T113076

1.00 kVA
1.50 kVA
2.00 kVA
3.00 kVA

62.50
93.70
125.00
187.50

31.20
46.90
62.50
93.80

10.50 (26.7)
11.62 (29.5)
13.00 (33.0)
11.50 (29.2)

5.50 (14.0)
5.50 (14.0)
5.50 (14.0)
10.31 (26.2)

5.13 (13.0)
5.13 (13.0)
5.13 (13.0)
7.13 (18.1)

24 (10.9)
30 (13.6)
38 (17.2)
55 (24.9)

B
B
B
C

T113077
T213078
T213079

5.00 kVA
7.50 kVA
10.00 kVA

312.00
468.00
625.00

156.00
234.00
312.00

14.38 (36.5)
20.81 (52.9)
20.81 (52.9)

10.31 (26.2)
11.12 (28.2)
11.75 (29.8)

7.13 (18.1)
10.84 (27.5)
10.84 (27.5)

75 (34.0)
125 (56.7)
160 (72.6)

C
D
D

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

DEPTH

APPROX.
NET WEIGHT
LBS. (KG.)

DIMENSIONAL
DRAWINGS

GROUP III
240 X 480 PRIMARY VOLTS — 24/48 SECONDARY VOLTS — 60 Hz
CATALOG
NUMBER

INSULATING
TRANSFORMER
RATING

SECONDARY MAXIMUM
CURRENT OUTPUT
24 V
48 V

T181061
T181062
T181063

0.05 kVA
0.10 kVA
0.15 kVA

2.08
4.16
6.24

1.04
2.08
3.12

6.41 (16.3)
7.16 (18.2)
7.16 (18.2)

3.14 (8.0)
3.89 (9.9)
3.89 (9.9)

3.05 (7.7)
3.67 (9.3)
3.67 (9.3)

4 (1.8)
5 (2.3)
7 (3.2)

A
A
A

T181064
T181065
T181066

0.25 kVA
0.50 kVA
0.75 kVA

10.40
20.80
31.20

5.20
10.40
15.60

8.68 (22.0)
9.06 (23.0)
9.68 (24.6)

4.08 (10.4)
4.37 (11.1)
4.75 (12.1)

3.88 (9.9)
4.20 (10.7)
4.51 (11.5)

10 (4.5)
15 (6.8)
19 (8.6)

B
B
B

T137920
T137921
T137922
T137923

1.00 kVA
1.50 kVA
2.00 kVA
3.00 kVA

41.60
62.40
83.20
125.00

20.80
31.20
41.60
62.50

10.50 (26.7)
11.62 (29.5)
13.00 (33.0)
11.50 (29.2)

5.50 (14.0)
5.50 (14.0)
5.50 (14.0)
10.31 (26.2)

5.13 (13.0)
5.13 (13.0)
5.13 (13.0)
7.13 (18.1)

24 (10.9)
30 (13.6)
38 (17.2)
55 (24.9)

B
B
B
C

T137924
T243570
T243571

5.00 kVA
7.50 kVA
10.00 kVA

208.00
312.00
416.00

104.00
156.00
208.00

14.38 (36.5)
20.81 (52.9)
20.81 (52.9)

10.31 (26.2)
11.12 (28.2)
11.75 (29.8)

7.13 (18.1)
10.84 (27.5)
11.59 (29.4)

75 (34.0)
135 (61.2)
160 (72.6)

C
D
D

① All units have ground studs for use with non-metallic conduit. All sizes of 0.75 kVA and less are suitable for 50/60 Hertz. Additional field wiring box may be required when using
units as autotransformers.

100

Section 7_0412.indd 100

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 11:54 AM

SECTION

7

BUCK-BOOST TRANSFORMERS

LOW VOLTAGE LIGHTING WIRING DIAGRAMS
K

H4

H3

X1

X2

L
H2

H1

X3

X4

H4

H3

X1

X2

GROUP I

M

SINGLE PHASE

H2

H1

H4

H3

X3

X4

X1

X2

H2

X3

GROUP II

Units Rated 120 x 240 V Input: 12/24 V Output

N

H1

X4

H4

H3

H2

H1

X1

X2

X3

X4

GROUP III

Units Rated 120 x 240 V Input: 16/32 V Output

Units Rated 240 x 480 V Input: 24/48 V Output

INPUT

OUTPUT

CONNECTION
DIAGRAM

INPUT

OUTPUT

CONNECTION
DIAGRAM

INPUT

OUTPUT

CONNECTION
DIAGRAM

120

12

K

120

16

K

240

24

K

120

24

L

120

32

L

240

48

L

240

12

M

240

16

M

480

24

M

240

24

N

240

32

N

480

48

N

Number of Leads per Termination
H1 H2 H3 H4 X1 X2 X3 X4
T213078

1

1

1

1

2

2

2

2

T213079

1

1

1

1

2

2

2

2

T243571

1

1

1

1

2

2

2

2

T211688

1

1

1

1

2

2

2

2

T211689

1

1

1

1

2

2

2

2

All leads with same designation (ex. X1, X1)
MUST be joined together for proper operation.

BUCK-BOOST DIMENSIONAL DRAWINGS
D

D

D

D
W

H

H

H

H

W

DESIGN A

W

DESIGN B

W

DESIGN C

DESIGN D

NOTE: All designs listed above are totally enclosed and suitable for UL 3R outdoor service.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 7_0412.indd 101

101

6/13/12 11:54 AM

7

SECTION

BUCK-BOOST TRANSFORMERS

BUCK-BOOST WIRING DIAGRAMS ①

SINGLE PHASE

INPUT

FIG. C

H4

H3

INPUT

FIG. D

H2

X4

H1

X2

X3

X1

H4

H3

H2

OUTPUT
FIG. E

H3

H2

X1

X2

X3

H4

H3

H1

FIG. H

H2

X4

H1

FIG. I

X1

X2

X3

H4

H3

H2

H2

FIG. J

X4

H1

H4

X1

X2

X3

H2

H3

H1

THREE PHASE

INPUT

X4
TRANS. #3

H1
X4
X3
X2

X3
X2
X1

1

H2
H1

X3
X4
X3

H2

X2
X1

1

WYE

1

FIG. CC

OPEN DELTA

INPUT ONLY

NEUTRAL

X1

#1

TR
AN
S.

#2

S.
AN
TR

X2

TR
X4
AN
S.
#1

X3

H3
H2

H2

H1

H3

H3

H1
H2

X4
X3
X2

H4
2
3

1

H4

#2
S.
AN
TR

X4
X3
X2

H2
H1

#2

② Cannot be reverse connected.
X3
X2

2
3

X1

OUTPUT

3

OUTPUT ONLY

WYE

OPEN DELTA

X4

X1

X1

2

FIG. FF

H3

H2
H1

1

OUTPUT

OPEN DELTA

H4

H3
X4

TRANS. #3

H2

H3 H3
H4

H4

H1

H1

H1
H2

FIG. DD

① The symbol O used in these
connection diagrams indicates
where to field install the overcurrent protective device,
typically a fuse or circuit breaker.

3

X1

2
S. #
AN
TR

X4

X2
X3

TR
AN
S. #
1

X1

3

INPUT

1

X1
X2
X3

H4

OUTPUT

3

3

H4

3

OPEN DELTA
1

H2
H3
2

OUTPUT

2

2

FIG. EE

H4

X3
X2
X1
H1

H3

2

FIG. BB

INPUT

X1
H1
H2

3

OUTPUT ONLY

H4

X4

H3
H4

1

OUTPUT

FIG. AA

X3
X2

H2

H3

3

1

X3

X4

H1

2

X4

X2

H1

X4

2

1

#2

X2

H3

X1

3
X4

#1

H2
H1

X1

#1

#2
S.
AN
R
T

H4

H3
H2

H3

X4

2
S. #
AN
TR

H4

H1
H2

X1

S.
AN
TR

H3 H3
H4

H4

S.
AN
TR

H1
H2

2
3

3

X1

H4

INPUT

1

2

TR
AN
S.

X2
X3

TR
AN
S. #
1

X2
X3

INPUT

1

2

3

TR
AN
S.

1
NEUTRAL

X3

X1

INPUT ONLY

1
2

X2

X2

X3

X4

OUTPUT

BUCK-BOOST WIRING DIAGRAMS ①

TR
X4
AN
S.
#1

X1

X2

X3

INPUT

OUTPUT

X1

X4

H1

OUTPUT

INPUT
H3

X1

INPUT

OUTPUT

H4

X2

X3

X4

OUTPUT

INPUT
H4

H2

H3

OUTPUT
FIG. G

X1

INPUT

FIG. F

X4

H1

X2

X3

OUTPUT

INPUT
H4

X4

H1

FIG. GG

OPEN DELTA

IMPORTANT: Refer to the N.E.C.
(National Electrical Code) Article
450-4 for overcurrent protection
of an autotransformer. These
connection diagrams are packed
with each buck-boost transformer.
Do not use connections other
than those shown above.

102

Section 7_0412.indd 102

6/13/12 11:54 AM

S E CT I ON

8

PANEL-TRAN ®
ZONE POWER
CENTERS
Zone power centers combine an Acme
encapsulated distribution transformer
with a power panel assembly in one
convenient UL-3R enclosure, for
indoor/outdoor use and is suitable for
use as service entrance equipment.
304 Stainless Steel Panel Tran® .................104-105
Features ............................................................. 104
Selection Charts–Single Phase ........................ 106
Circuit Breaker Data–Single Phase .................. 106
Selection Charts–Three Phase ......................... 107
Circuit Breaker Data–Three Phase ................... 107
Wiring Diagrams................................................ 108

Section 8_0412.indd 103

6/13/12 12:00 PM

SECTION

8

PANEL-TRAN® ZONE POWER CENTERS

Convenient Package Saves Costs and Space
Acme’s Panel-Tran® Power Center is a pre-wired combination
of a primary breaker disconnect, dry-type shielded
transformer, secondary breaker disconnect and a secondary
power panel all in one convenient package.
You save time, space and money by not having to individually
assemble, mount and wire these components. Simply add the
breakers of your choice and you’re ready to go.

FEATURES
■

PT061150005LS

PTBA3150015LS

304 STAINLESS STEEL
PANEL-TRAN®

Single and three phase, 480 and 600 volt primary, 60 Hz

■

Primary and secondary main circuit breakers provided

■

UL-3R enclosure

■

5 through 25 kVA single phase, 9 through 30 kVA
three phase

■

Meets or exceeds UL, CSA, NEMA, ANSI and
OSHA Standards

■

UL Listed and CSA Certified

■

Ten-year limited warranty

■

Shielded for cleaner power

■

Available in 304 stainless steel

ELECTRICAL CHARACTERISTICS
SINGLE PHASE
Primary Voltage:
480 Volts; 600 Volts Single Phase, 60 Hz
2 – 5% BNFC taps

FEATURES
■

3R Enclosure.

■

Abundant knockouts provided.

■

Comply with NEC Class 1, Division 2,
Group A-D when installed per NEC 501-2 (b).

■

Encapsulated construction.

■

Single phase: 5 – 25 kVA.
Three phase: 9 – 30 kVA.

Secondary Voltage:
240/120 Volts Single Phase, 60 Hz
Three wire system
kVA’s Available:
5, 7.5, 10, 15 and 25 kVA
THREE PHASE
Primary Voltage:
480 Volts Delta; 600 Volts Delta Three Phase, 60 Hz
With 2 – 5% BNFC taps

APPLICATIONS
■

Harsh industrial locations

■

Corrosive chemical exposure

■

Waste water treatment facilities

■

Coastal or marine applications with high salt spray level

■

Any application where painted cold roll steel is not
adequate

600 volt class and below

■

Secondary Voltage:
208Y/120 Volts Three Phase, 60 Hz
Four wire system
kVA’s Available:
9, 15, 22.5 and 30 kVA
Insulation Class:
180°C, UL recognized system, 115°C rise
Regulation:
2 – 3% at unity power factor

104

Section 8_0412.indd 104

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:00 PM

SECTION

8

PANEL-TRAN® ZONE POWER CENTERS

UL-3R Enclosures All Panel-Tran® enclosures are UL-3R
listed for indoor and outdoor use.
Transformer Assembly Acme totally encapsulated
distribution transformers are designed for general purpose
indoor/outdoor operation. Panel-Tran® can be installed in a
wide variety of atmospheric and environmental conditions. A
180°C, UL recognized insulation system is used.
Panel-Tran® units are electrostatically shielded to provide
transient voltage protection at no extra cost.
Panel Assembly The power panel assembly will
accommodate one-inch, 1, 2 or 3-pole, common trip, duplex
secondary branch circuit breakers and ground fault circuit
breakers. Per UL and NEC requirements, the Panel-Tran®
assembly comes fully equipped with primary and secondary
main circuit breakers. Branch circuit breakers should be
obtained from our local distributor once you have established
your branch circuit requirements.
Panel-Tran® — Why? Panel-Tran® eliminates the normal
tangled masses of secondary circuit feeders and gives your
industrial/commercial distribution systems new flexibility. Use
your high voltage bus to full advantage by putting power where
the problem is. Reduce cost — save space — keep flexible.
Panel-Tran — Where? Anywhere 120, 208 or 240 volt
branch circuits are required. Typically, Panel-Tran® is best
applied in situations similar to the following: Powering foreman
centers, vending machine areas, factory test set- ups, office
buildings, mining applications, assembly lines, portable or
temporary power sources, parking lots, small machine setups, light industrial areas, warehouses, and numerous other
locations. Use where your branch circuits may require future
change or expansion.
®

UL Listed Panel-Tran® has been listed by Underwriters’
Laboratories for both indoor and outdoor operation under their
unit substation classification, file number E-56936. In addition,
Panel-Tran® is UL listed as suitable for use as Service Entrance
Equipment.
Meets The NEC Panel-Tran® fully complies with Article
450-3 of the latest edition of the NEC.
Protection A primary main breaker protects the transformer
and acts as a disconnect device. This primary main breaker
has a high interrupting capacity to handle fault conditions. A
secondary main breaker, between the transformer and the
panel, is required by the N.E.C.
Branch Circuits Typical 1" snap in circuit breakers, regular
or duplex, must be field installed. They are not provided with
the Panel-Tran® unit. A secondary ground is provided within
the wiring compartment for accepting your branch unit. All of
the breakers, including the primary main, secondary main,
and branch circuit breakers are located in the lower section of
the Panel-Tran®. This lower section is protected by a hinged,
removable front cover which can be padlocked for safety.
Recommended Branch Breakers We suggest using
branch breakers of the same manufacture as the panel in
Panel-Tran®. Please contact the factory for the proper branch
breaker recommendation.
Acme reserves the right to change breaker and panel
manufacturers without notification.
Connections All Panel-Tran® connections will accept
copper or aluminum conductor.

FEATURES
Sturdy Unitized
Construction

Primary
Main
Hinged Removable
Cover
Secondary
Main

Tamper-Proof
Pad-Lockable
Captive Hardware

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 8_0412.indd 105

105

6/13/12 12:00 PM

SECTION

8

PANEL-TRAN® ZONE POWER CENTERS

SELECTION CHARTS

SINGLE PHASE

GROUP I
480 PRIMARY VOLTS –– 240/120 SECONDARY VOLTS –– 1Ø, 60 Hz
KVA

MAXIMUM SECONDARY
CIRCUITS ①
CATALOG NO.
(1-POLE)

APPROX. DIMENSIONS
INCHES (CM.)NET WEIGHT
120 V
240 V HEIGHT
(2-POLE)

APPROX.
WIDTH DEPTH

LBS. (KG.)

5.0

PT061150005LS

8

4 32.13 (81.6)

13.25 (33.7)7.63 (19.4)

120 (54.4)

7.5

PT061150007LS

8

4 32.13 (81.6)

15.88 (40.3)11.00 (27.9)

160 (72.6)

10.0

PT061150010LS

8

4 34.38 (87.3)

15.88 (40.3)11.00 (27.9)

185 (83.9)

15.0

PT061150015LS

12

6 34.38 (87.3)

17.13 (43.5)12.38 (31.4)

240 (109.0)

25.0

PT061150025LS

20

1041.88 (106.4)

17.88 (45.4)13.50 (34.3)

330 (150.0)

GROUP I – 304 SS
304 STAINLESS STEEL
480 PRIMARY VOLTS –– 240/120 SECONDARY VOLTS –– 1Ø, 60 Hz
KVA

CATALOG NO.

5.0

PT061150005SS

MAXIMUM SECONDARY
CIRCUITS ①
120 V
240 V
(1-POLE)
(2-POLE)

8

4

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

DEPTH

APPROX.
NET WEIGHT
LBS. (KG.)

32.13 (81.6)

13.25 (33.7)

7.63 (19.4)

120 (54.4)

7.5

PT061150007SS

8

4

32.13 (81.6)

15.88 (40.3)

11.00 (27.9)

160 (72.6)

10.0

PT061150010SS

8

4

34.38 (87.3)

15.88 (40.3)

11.00 (27.9)

185 (83.9)

15.0

PT061150015SS

12

6

34.38 (87.3)

17.13 (43.5)

12.38 (31.4)

240 (109.0)

25.0

PT061150025SS

20

10

41.88 (106.4)

17.88 (45.4)

13.50 (34.3)

330 (150.0)

Circuit Breaker Data ②
480 VOLTS TO 240/120 VOLTS
1Ø
KVA

480 VOLTS
PRIMARY
BREAKER

240/120 VOLTS
SECONDARY
MAIN

MAXIMUM RATING
OF
SECONDARY BREAKERS

5.0

ED42B025L (25A)

Q225 (25A)

20 amps

7.5

ED42B025L (25A)

Q240 (40A)

30 amps

10.0

ED42B035L (35A)

Q250 (50A)

40 amps

15.0

ED42B050L (50A)

Q270 (70A)

60 amps

25.0

ED42B090L (90A)

Q2125 (125A)

100 amps

① The number of secondary circuits shown is only a representation of circuits. Please contact the factory for exact number of secondary circuits available.
② 18,000 Amps RMS Symmetrical Interrupting Capacity.

106

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION

8

PANEL-TRAN® ZONE POWER CENTERS

SELECTION CHARTS

THREE PHASE

GROUP A
480 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– 3Ø, 60 Hz
MAX. SECONDARY CIRCUITS ①
1Ø
3Ø
120 V
208 V
(1-Pole)
(3-Pole)

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

DEPTH

APPROX.
NET WEIGHT
LBS. (KG.)

KVA

CATALOG NO.

9.0

PTBA3150009LS

12

4

33.75 (85.7)

22.13 (56.2)

7.63 (19.4)

255 (116.0)

15.0

PTBA3150015LS

12

4

35.13 (89.2)

22.13 (56.2)

12.38 (31.4)

385 (175.0)

22.5

PTBA3150022LS

18

6

38.25 (97.2)

30.25 (76.8)

13.38 (34.0)

535 (243.0)

30.0

PTBA3150030LS

24

8

43.75 (111.1)

33.00 (83.8)

13.75 (34.9)

680 (308.0)

DEPTH

APPROX.
NET WEIGHT
LBS. (KG.)

GROUP A – 304 SS
304 STAINLESS STEEL
480 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– 3Ø, 60 Hz
KVA

CATALOG NO.

MAX. SECONDARY CIRCUITS ①
1Ø
3Ø
120 V
208 V
(1-Pole)
(3-Pole)

HEIGHT

APPROX. DIMENSIONS
INCHES (CM.)
WIDTH

9.0

PTBA3150009SS

12

4

33.75 (85.7)

22.13 (56.2)

7.63 (19.4)

255 (116.0)

15.0

PTBA3150015SS

12

4

35.13 (89.2)

22.13 (56.2)

12.38 (31.4)

385 (175.0)

22.5

PTBA3150022SS

18

6

38.25 (97.2)

30.25 (76.8)

13.38 (34.0)

535 (243.0)

30.0

PTBA3150030SS

24

8

43.75 (111.1)

33.00 (83.8)

13.75 (34.9)

680 (308.0)

Circuit Breaker Data ②
480 VOLTS DELTA TO 208Y/120 VOLTS
3Ø

480 VOLTS
PRIMARY
BREAKER

208Y/120 VOLTS
SECONDARY
MAIN

MAXIMUM RATING
OF
SECONDARY BREAKERS

9.0

ED43B025L (25A)

Q330 (30A)

25 amps

15.0

ED43B040L (40A)

Q350 (50A)

40 amps

22.5

ED43B070L (70A)

Q370 (70A)

60 amps

30.0

ED43B090L (90A)

Q3100 (100A)

80 amps

KVA

① The number of secondary circuits shown is only a representation of circuits. Please contact the factory for exact number of secondary circuits available.
② 10,000 Amps RMS Symmetrical Interrupting Capacity.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 8_0412.indd 107

107

6/13/12 12:00 PM

SECTION

8

PANEL-TRAN® ZONE POWER CENTERS

PANEL-TRAN® ZONE POWER CENTERS WIRING DIAGRAMS

SINGLE PHASE

Wiring Diagram 1Ø 5-25 kVA
LINE 1

LINE 2

H1

H2

X3

X2

H3

H4

NEUTRAL

GROUND
WHEN
REQUIRED

X1

BOND
WHEN
REQUIRED
1
2

3
4

PANEL-TRAN® ZONE POWER CENTERS WIRING DIAGRAMS
3Ø 9 kVA
LINE B

LINE A

3Ø 15-30 kVA
LINE A

LINE C

PRIMARY MAIN
FURNISHED
H2 H5 H8

H1 H4 H7

X2

X1

X0

3

X3

Section 8_0412.indd 108

X0

2

1

X1

LINE C

H2
3 2

1

X2

H3
3

2

1

X3
NEUTRAL

BOND
WHEN
REQUIRED

4
5
6
GROUND
WHEN
REQUIRED

108

SECONDARY MAIN
FURNISHED

LINE B

H1

H9 H6 H3

NEUTRAL

1
2
3

THREE PHASE

1
2
3
4
5
6

BRANCH CIRCUIT
BREAKERS ARE
ADDED BY INSTALLER

7
8
9
10
11
GROUND
12
WHEN
REQUIRED

BOND
WHEN
REQUIRED

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:00 PM

S E CT I ON

9

AIR CONDITIONING,
REFRIGERATION
& APPLIANCE
TRANSFORMERS
An economical approach to changing
world voltages to 115V for operation
of air conditioners, refrigeration
equipment, appliances, business
machines, and related
equipment.
Construction Features ...............................110-111
Selection Instructions ....................................... 111
Selection Charts................................................ 112

Section 9_0412.indd 109

6/13/12 12:02 PM

SECTION

9

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

Air Conditioning, Refrigeration & Appliance Transformers
The transformers in this section are autotransformers
designed to change a wide range of voltages to the standard
motor voltages for domestic appliances, air conditioners,
and related equipment.
Correcting high or low supply voltage conditions to match
the voltage requirements of appliances and equipment aids
in safe, efficient operation.
These Acme autotransformers change or correct offstandard voltage that may be the result of:
1. Line supply voltage not matching the appliance motor
nameplate voltage, (e.g., supply voltage is 380Y/220V,
three phase, four wire. Appliance motor operates on 110 V,
single phase. See schematic).

are suitable for 50/60 Hz (cycle) service, they are
applicable in export trade where it is necessary to change
to a standard voltage for appliance operation.
These transformers are capable of adjusting voltage
only; they can’t change the frequency of a supply circuit.
However, in most instances, 60 Hz (cycle) equipment
can be operated from a 50 Hz supply if the voltage is
reduced approximately 8 -10%. For example, 115 V, 60 Hz
equipment can usually be operated on 50 Hz at 105 V.
Some common uses for Acme Air Conditioning, Refrigeration
and Appliance transformers include adjustment of offstandard voltage to the nominal voltages required to
operate:
a) Air conditioners, television receivers, all home
appliances.

2. Low voltage due to inadequate wiring capacity in the
electrical distribution system.

b) Hermetically sealed refrigeration motors.

3. Low voltage caused by distribution of power over a
long distance.

c) Individual machine lighting, tool post grinders, fans,
convenience outlets for portable lights, power tools.

4. High or low voltages supplied by the utility company.

d) Magnetic contactors, relays, AC motors and similar
devices requiring large starting (inrush) currents.

Standard voltages and frequencies (Hz) vary throughout
many countries of the world. Since these autotransformers
A
220V

110V

380V
N
380Y/220V, 3Ø
4 WIRE SUPPLY

ACME
APPLIANCE
TRANSFORMER

LOAD
(MOTOR, APPLIANCE, ETC.)

Construction Features
Acme appliance transformers are autotransformers. The input
(primary) winding is in electrical series connection with the
output (secondary) winding; the input and output are not
electrically isolated.

All units are constructed of core lamination processed
from annealed electrical grade silicon steel. This improves
transformer efficiency by keeping heat losses at a
minimum.

The autotransformer principle is the most economical for
appliance applications, since only the difference between
input voltage and output voltage is transformed. This results
in smaller size, reduced weight and lower cost.

Coils are precision machine wound and hand finished.
The core and coil combination is impregnated with electrical
grade varnish, then heat cured. This provides cool
operation and protects the transformer from moisture and
contamination. The result is long transformer life.

110

Section 9_0412.indd 110

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:02 PM

SECTION

9

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

The transformers in this section will not cause harmonic
distortion to voltage or current wave shape.

All units are manufactured and tested in accordance with
National Electrical Manufacturers Association standards.

All transformers in Group C are equipped with a SAFETY
grounding feature on both the input and output side.

Some groups are equipped with primary voltage taps which
correct for voltage conditions constantly above or below the
nominal rating of the supply.

Connection for ground may be made through lead wires or
through plug and receptacle combinations where installed.

Selection Steps
1. Determine the value of incoming line supply voltage and
frequency (50 or 60 Hz).

3. Add all VA requirements of equipment to obtain total
load. (All components must be of same voltage rating).

2. Find the appliance or load equipment voltage rating and
amperes from the nameplate or instruction sheet. Multiply
the two to obtain VA requirement of the load. If the power
requirements are listed only in watts, consider this the
same as VA. (Exception: electric discharge lighting such
as mercury vapor, fluorescent, etc. should always be
sized by volts x amps (VA). If only wattage ratings are
known, double this requirement to obtain VA ratings of
transformers needed).

4. Add 10% for high starting current and overloading to
obtain VA size of transformers.
5. Select transformer from charts on following pages using
combination of supply voltage (primary), voltage rating of
equipment (secondary), load VA rating, and type of
connections desired.

Secondary Receptacle
Catalog # T160812

6’ (1.8 M) Primary Cord

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 9_0412.indd 111

111

6/13/12 12:02 PM

SECTION

9

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

GROUP C
PRIMARY VOLTS — 200/220/240

SECONDARY VOLTS — 115, 50/60 Hz
APPROX. DIMENSIONS
INCHES (CM.)
HEIGHT
WIDTH
DEPTH

RECEPTACLE

APPROX.
SHIP WEIGHT
LBS. (KG.)

CATALOG
NO.

VA
RATING

OUTPUT
AMPS

T160830 ①

200

1.74

9.16 (23.3)

3.89 (9.9)

3.67 (9.3)

6 (2.7)

6 (1.8) primary cord and secondary receptacle

T160831 ①

300

2.61

9.16 (23.3)

3.89 (9.9)

3.67 (9.3)

6 (2.7)

6 (1.8) primary cord and secondary receptacle

T160832 ①

400

3.48

9.16 (23.3)

3.89 (9.9)

3.67 (9.3)

8 (3.6)

6 (1.8) primary cord and secondary receptacle

T160833 ①

500

4.35

9.68 (24.6)

4.75 (12.1)

4.51 (11.5)

10 (4.5)

6 (1.8) primary cord and secondary receptacle

T160834 ①

1000

8.70

9.68 (24.6)

4.75 (12.1)

4.51 (11.5)

14 (6.4)

6 (1.8) primary cord and secondary receptacle

T160835 ①

2000

17.40

11.50 (29.2)

7.81 (19.8)

7.13 (18.1)

27 (12.2)

6 (1.8) primary cord and secondary receptacle

CONNECTIONS
FEET (METERS)

① All models can be reverse connected with input voltage applied to secondary terminals and output voltage available at primary terminals.
Do not exceed rating voltages. Transformer VA capacity will remain the same.

112

Section 9_0412.indd 112

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:02 PM

S E CTI O N

10

POWER
CONDITIONING
PRODUCTS
W
NE

True-Power ® Constant Voltage
Regulators and Portable Power Line
Conditioners; Portable .250–2.0
kVA and Hardwire .250–15.0 kVA
True-Power ® Products .......................................114
Specifications ....................................................115
Selection Charts.................................................115
Dimensional Drawings.......................................116

Section 10_0412.indd 113

6/13/12 12:07 PM

SECTION
SECTION

10

CONSTANT VOLTAGE REGULATORS & POWER LINE CONDITIONERS

Acme® True-Power ® Power Line Conditioners
The average computer installation, representing mini-computer,
workstations or personal computers, experiences an average of
100 power disturbances each month. These disturbances can
cause equipment malfunction, loss of memory and inaccurate
data, and in the worst cases complete failure of these delicate
electronic devices. Computer installation manuals recommend
dedicated service lines, but these are expensive to install, offer
minimal future flexibility and do not provide total protection of
the equipment. Acme offers a complete line of Power Protection
Equipment. Refer to the “Product Selection Guide” for the product
that best meets your requirements.
Note: This section of the general catalog contains complete
specification and selection information on Acme’s True-Power®
power line conditioners.

Acme True-Power® products consist of speciality designed ferroresonant transformers. Although ferroresonant transformers have
been an economical solution to power problems for many years, it
took the skills of Acme’s highly regarded engineering staff to refine
it to meet today’s exacting requirements.
For example, typical ferroresonant transformers have an input
limited to 100 -130 V. Acme’s True -Power ® units have an input
range of +10/-20% around input voltage nominals of 120/208/240
and 480 volts. At 120 volt input, this relates to 95-130 volts.
The typical ferroresonant transformer has limited electrical noise
suppression capability. True-Power® power line conditioners have
the following noise attenuation capability:
Common Mode: 120 db
Transverse Mode: 60 db
The typical ferroresonant transformer has an audible hum that
can be objectionable in most offices. Acme’s True-Power® power
line conditioners are encapsulated in epoxy to lower sound levels
below ANSI standard C 89.2.

APPLICATIONS
■

Computers and Data Processing
Equipment

■

Point of Sale Terminals

■

Electronic Test Equipment

■

X-Ray Equipment

■

Critical Lighting Applications

■

Programmable Controllers

■

Security Systems

FEATURES

■

Microprocessor Controls

■

■

Communications Equipment

Reliable, regulated output voltage when input voltage varies,
even to brownout levels.

Photographic Equipment

■

■
■

Regulated DC Power Supplies

Extended operation to 65% of nominal when operated at 60% of
full load.

■

■

Electronic Cash Registers

Noise rejection—effectively suppressing transient spikes and
surges—120 db common mode and 60 db transverse mode.

■

Robotics

■

■

Numerical Controls

Rapid response to line and load changes—5% variation in 8m
sec, 10% variation in 16m sec.

■

Hold up time of 3m sec for complete loss of input power.

The typical ferroresonant transformer has on output regulation
of ± 3% for input line changes only. Acme’s True-Power® power
line conditioners have an output regulation of ± 3% for input line
and load changes, making them suitable for operation at any load
condition.

Product Selection Guide
PROBLEM ENCOUNTERED

Shielded
Isolation
Transformer

TruePower ®

SPS

UPS

Power Failure

—

—

X

X

Widely Varying Source Voltage

—

X

—

X
X

Brown Outs

—

X

X

Switching Of Power Factor Correction Capacitors

X

X

X

X

Distorted Wave Shape Due To Harmonic Content

—

X

—

X

Common-Mode Transients

X

X

—

X

Transverse-Mode Transients

—

X

X

X

Voltage Spikes Due To Proximity Of
Welding Equipment Or Certain
Medical Diagnostic Equipment

X

X

X

X

Line Distortion Due To Noise Generated From
Occasional Lightning Strikes

X

X

X

X

Operation Of Computer Storage Devices Such
As Floppy Disks Or Winchester Drives
Generates Transients

114

Section 10_0412.indd 114

X

X

X

X

■

Inherent overload and short circuit protection,
without thermo protectors, fuses or circuit
breakers, for immediate recovery when the
overload is removed.

■

Sinusoidal output features, less than 3% harmonic
distortion, improves input wave forms which have
total harmonic distortions of greater than 5%.

■

Available in 250 through 15,000 VA in hardwired
and portable models.

■

Hardwired models will handle multiple primary
input voltages.

■

Illuminated ON/OFF switch, multiple output
receptacles and six foot input power cord on
portable units.

■

UL Listed.

■

CSA Certified (Hardwire models).

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:07 PM

10

CONSTANT VOLTAGE REGULATORS & POWER LINE CONDITIONERS

SECTION
SECTION

SPECIFICATIONS
Input (Primary)

95-132 VAC (Portable)

Output (Secondary)

120 VAC (Portable)
120/208/240 VAC (Hardwire)

Load Range
Regulation
Attenuation

0-100%
± 3% for line/load changes
120 db Common Mode Noise
60 db Transverse Mode Noise
Below ANSI std. C 89.2

95-132 VAC (Hardwired) ②
166-228 VAC
192-264 VAC
384-528 VAC
Phase:

1 Phase

Audible Noise

SELECTION CHARTS
GROUP I
PORTABLE MODELS — POWER LINE CONDITIONERS
95-132 VOLT PRIMARY — 120 VOLT SECONDARY — 1Ø, 60 Hz
KVA
SIZE

CATALOG
NUMBER

0.25

PLC85000

0.50

PLC85001

0.75

PLC85002

1.00

PLC85003

2.00

PLC85004

A
HEIGHT
8.13
(20.7)
9.13
(23.2)
10.94
(27.8)
10.94
(27.8)
12.50
(31.8)

APPROX. DIMENSIONS
INCHES (CM.)
B
C
D
WIDTH
DEPTH
6.31
11.38
5.25
(16.0)
(28.9)
(13.3)
7.50
13.63
6.38
(19.1)
(34.6)
(16.2)
7.50
15.63
6.38
(19.1)
(39.7)
(16.2)
10.69
17.63
8.31
(27.2)
(44.8)
(21.1)
11.44
20.19
9.75
(29.1)
(51.3)
(24.8)

TYPE
MTG.

E

5.69
(14.5)
7.19
(18.3)
7.19
(18.3)
10.88
(27.6)
12.25
(31.1)

APPROX.
SHIP WEIGHT
LBS. (KG.)
29
(13.2)
45
(20.4)
60
(27.2)
72
(32.7)
135
(61.2)

P
P
P
P
P

FIGURE

ELECTRICAL
CONNECTIONS

I

Two, ea. outlet rated 15A max.

I

Two, ea. outlet rated 15A max.

I

Two, ea. outlet rated 15A max.

I

Three, ea. outlet rated at 15A max.

I

Three, ea. outlet rated at 15A max.

P = Portable

GROUP II
HARDWIRED MODELS — CONSTANT VOLTAGE REGULATORS
95-132 X 166-228 X 192-264 X 384-528 VOLT PRIMARY — 120/208/240 VOLT SECONDARY — 1Ø, 60 Hz
KVA
SIZE

CATALOG
NUMBER

0.25

T169430

0.35

T169431

0.50

T169432

0.75

T169433

1.00

T169434

2.00

T169435

3.00

T169436

5.00

T169437

10.00

T169438

15.00

T169439

A
HEIGHT
15.50
(39.4)
17.00
(43.2)
17.00
(43.2)
17.00
(43.2)
18.50
(47.0)
19.00
(48.3)
19.00
(48.3)
22.00
(55.9)
23.06
(58.6)
23.06
(58.6)

B
WIDTH
6.30
(16.0)
7.00
(17.8)
7.00
(17.8)
7.00
(17.8)
6.50
(16.5)
10.50
(26.7)
10.50
(26.7)
12.54
(31.9)
27.31
(69.4)
40.13
(101.9)

C
DEPTH
5.80
(14.7)
7.30
(18.5)
7.30
(18.5)
7.30
(18.5)
8.55
(21.7)
10.20
(25.9)
10.20
(25.9)
12.20
(31.0)
24.06
(61.1)
24.06
(61.1)

APPROX. DIMENSIONS ③
INCHES (CM.)
D
E
F

5.63
(14.3)
5.63
(14.3)
5.63
(14.3)
5.63
(14.3)
5.63
(14.3)
6.00
(15.2)
6.00
(15.2)
6.00
(15.2)
18.00
(45.7)
18.00
(45.7)

8.13
(20.7)
8.13
(20.7)
8.13
(20.7)
8.13
(20.7)
8.13
(20.7)
12.00
(30.5)
12.00
(30.5)
14.00
(35.6)
25.50
(64.8)
38.31
(97.3)

TYPE
MTG.

G

H

J

9.30
(23.6)
9.40
(23.9)
9.40
(23.9)
9.40
(23.9)
9.50
(24.1)
13.25
(33.7)
13.25
(33.7)
15.25
(38.7)
—

1.2
(3.0)
2.3
(5.8)
2.3
(5.8)
2.3
(5.8)
2.3
(5.8)
2.3
(5.8)
2.3
(5.8)
2.3
(5.8)
—

5.00
(12.7)
6.50
(16.5)
6.50
(16.5)
6.50
(16.5)
7.75
(19.7)
9.40
(23.9)
9.40
(23.9)
11.40
(29.0)
—

F&W ①

—

—

.41 x .81
(1.0 x 2.1)
.41 x .81
(1.0 x 2.1)
.41 x .81
(1.0 x 2.1)
.41 x .81
(1.0 x 2.1)
.41 x .81
(1.0 x 2.1)
.44 x .63
(1.1 x 1.6)
.44 x .63
(1.1 x 1.6)
.44 x .63
(1.1 x 1.6)
.56
(1.4)
.56
(1.4)

—

F

F&W
F&W
F&W
F&W
F&W
F&W
F&W
F&W

APPROX.
SHIP
WEIGHT
LBS. (KG.)
37
(16.8)
51
(23.1)
53
(24.0)
65
(29.5)
82
(37.2)
142
(64.4)
176
(79.8)
295
(134.0)
605
(274.0)
880
(399.0)

FIGURE

II

WIRING
DIAGRAMS
SEE PAGE 147
16

II

16

II

16

II

16

II

16

III

16

III

16

III

16

IV

16

IV

16

F = Floor W = Wall
① Wall mounting brackets required for this size. Refer to Page 137.
② All hardwired models will accommodate these primary input voltages.
③ Dimensions not suitable for construction. Contact factory.
ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

Section 10_0412.indd 115

115

6/13/12 12:07 PM

SECTION
SECTION

10

CONSTANT VOLTAGE REGULATORS & POWER LINE CONDITIONERS

POWER LINE CONDITIONERS DIMENSIONAL DRAWINGS
FIGURE I

C

B

A

E

D

SIDE VIEW

FRONT VIEW

CONSTANT VOLTAGE REGULATORS DIMENSIONAL DRAWINGS
FIGURE II & III
F

C

E

J

B
G
D
A

FRONT VIEW

SIDE VIEW

FIGURE IV
C

B

A

E

FRONT VIEW

116

Section 10_0412.indd 116

D

SIDE VIEW

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:07 PM

S E CTI O N

11

DM POWER
SUPPLIES
A leading source of high quality
linear and switch mode power
supplies in enclosed and open
frame styles.
DM Series Mounted Power Supplies
Din-Rail Mounted (DM Series)
DM Series 0.6 to 20 Amps & Accessories....118-120

DM Accessories............................................ 121

Unregulated Linear Power Supplies
Blackline Series 100 Watts to 750 Watts .....112-113

Regulated Linear Power Supplies
SPS Blueline Series
7.5 Watts to 144 Watts....................................124-125
SPW Series 15 Watts to 175 Watts ............126-127
Frequently Asked Questions ............................ 128

SECTION 11_0412.indd 117

6/13/12 12:13 PM

SECTION

11

DM SERIES DIN-RAIL MOUNTED POWER SUPPLIES

DIN-Rail Mounted Power Supplies
DM Series 0.6 to 20 Amps
Acme’s new flagship line of DM Series
DC power supplies are an innovative
solution to a vast array of control
applications. Designed to provide
optimal performance with a minimal
impact on installation time and space.
Currently available in single phase
models (three phase coming soon)
from 0.6 to 20 Amps (15-480 watts)
these new power supplies provide the
convenience of DIN-rail mounting up
to 10 Amp for a toolless installation
and the versatility of a standard auto-ranging input to cover the
most applications with the fewest models. The slim profile greatly
reduces the amount of space taken up on the DIN-rail and within
the overall control cabinet. The fully enclosed design is touch proof
and CE compliant to meet international specifications. All units are
UL 508 listed and can be used at full-rated power.

INDUSTRIES
■
■
■
■
■

Solution Ease

■

The DM families auto-ranging input feature provides you the
versatility of using one power supply to address input voltages
from 90-264 volts for single phase applications with no
adjustments required during installation.

■

APPLICATIONS
■
■

Space Saving

■

All the Acme Electric “DM Series” power supplies have been
designed in a compact, slim profile package compatible with other
modules mounted in the control panel.

Automotive
Machine tool
Material handling
Packaging
Food processing
Panel builders
Automation

■
■
■
■

Industrial/Machine control
Process control
Conveying equipment
Material handling
Packaging
Robotics
Welding

Installation Made Easy
All housings up to 20 Amps conveniently snap onto standard
35 mm DIN-rail assuring permanent mounting without the use
of any tools.

FEATURES
■
■
■
■
■
■
■
■
■
■

Fully enclosed, low profile design
Touchsafe
Reduced installation time
Pluggable connections
Fast, easy wiring connections
Simplifies troubleshooting effort
Mounts on standard DIN-rail
Local output indication
Primary switching technology
Up to Five-year limited warranty

118

SECTION 11_0412.indd 118

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:13 PM

SECTION

11

DM SERIES DIN-RAIL MOUNTED POWER SUPPLIES

DM Series Features
DC power now comes in a smaller package. Our slimline single phase models measure as small
as 32 mm wide to conserve valuable space on the DIN Rail and in the overall control cabinet!

32mm

Adjustable output voltage
compensates for voltage drop

Compact, narrow design provides
significant space savings

“DC OK” LED indicator
identifies local output status

Industrial design with rugged
metal case and mounting clip
makes installation easy

Universal input eliminates
voltage gaps for full product
application versatility

Overload indicator

Power factor correction
minimizes harmonic distortion

IP20 Touchsafe rating

SELECTION GUIDES
SINGLE PHASE
		
Output Power	
	 Catalog No.	 (Watts Max)	

Amp	
Rating	

Voltage	
Range AC	

	 DM112045	

4.5–3.4	

90–254 VAC	

—	

12 VDC (10–16 adj)	

54 W	

Voltage			
Range DC	
Output Voltage	 Efficiency (1)	

Operating	
Temp	

Dimensions H*W*D	
Inches (mm)	

Weight
LBS (Kg)

86%	

-10°C to +60°C	

4.88 x 1.97 x 4.13 (124 x 50 x 105)	

1.08 (0.49)
1.08 (0.49)

	 DM124025	

60 W	

2.5–2.1	

90–254 VAC	

—	

24 VDC (22–28 adj)	

87%	

-10°C to +60°C	

4.88 x 1.97 x 4.13 (124 x 50 x 105)	

	 DM12420	

480 W	

20.0–17.1	

90–254 VAC	

—	

24 VDC (22–28 adj)	

90%	

-10°C to +60°C	

5.12 x 6.14 x 4.96 (130 x 156 x 126)	 4.96 (2.25)

	 DM13613	

480 W	

13.3–12.0	

90–254 VAC	

—	

36 VDC (34–40 adj)	

90%	

-10°C to +60°C	

5.12 x 6.14 x 4.96 (130 x 156 x 126)	 4.96 (2.25)

	 DM1480125	

60 W	

1.25–1.15	

90–254 VAC	

—	

48 VDC (46–52 adj)	

89%	

-10°C to +60°C	

4.88 x 1.97 x 4.13 (124 x 50 x 105)	

	 DM14810	

480 W	

10.0–9.2	

90–254 VAC	

—	

48 VDC (46–52 adj)	

90%	

-10°C to +60°C	

5.12 x 6.14 x 4.96 (130 x 156 x 126)	 4.96 (2.25)

1.08 (0.49)

Frequency: 47-63 Hz for all models

1. Depends upon specific model selection, output voltage and/or upon 120 or 240 VAC operation.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

119

SECTION

11

DM SERIES DIN-RAIL MOUNTED POWER SUPPLIES

SLIMLINE SINGLE PHASE
Catalog No.

Output Power
(Watts Max)

Amp
Rating

Voltage
Range AC

Output Voltage

Efficiency (1)

Operating
Temp

Dimensions H*W*D
Inches (mm)

Weight
LBS (Kg)

DM11206S

72 W

6.0–4.8

90–264 VAC

12 VDC (12–15 adj)

87%

-20°C to +60°C

4.88 x 1.26 x 4.02 (124 x 32 x 102)

0.92 (0.42)

DM11208S

96 W

8.0–6.4

90–264 VAC

12 VDC (12–15 adj)

89%

-20°C to +60°C

4.88 x 1.57 x 4.45 (124 x 40 x 113)

1.37 (0.62)

DM11215S

180 W

15.0

90–264 VAC

12 VDC (12–15 adj)

88%

-20°C to +60°C (1)

4.88 x 2.36 x 4.45 (124 x 60 x 113)

1.98 (0.9)

DM124033S

80 W

3.4–2.8

90–264 VAC

24 VDC (24–28 adj)

90%

-20°C to +60°C

4.88 x 1.26 x 4.02 (124 x 32 x 102)

0.92 (0.42)

DM12405S

120 W

5.0–4.3

90–264 VAC

24 VDC (24–28 adj)

91%

-20°C to +60°C

4.88 x 1.57 x 4.45 (124 x 40 x 113)

1.37 (0.62)

DM12410S

240 W

10.0

90–264 VAC

24 VDC (24–28 adj)

92%

-20°C to +60°C (1)

4.88 x 2.36 x 4.45 (124 x 60 x 113)

1.98 (0.9)

DM148017S

80 W

1.7–1.4

90–264 VAC

48 VDC (48–56 adj)

90%

-20°C to +60°C

4.88 x 1.26 x 4.02 (124 x 32 x 102)

0.92 (0.42)

DM148025S

120 W

2.5–2.1

90–264 VAC

48 VDC (48–56 adj)

91%

-20°C to +60°C

4.88 x 1.57 x 4.45 (124 x 40 x 113)

1.37 (0.62)

DM14805S

240 W

5.0

90–264 VAC

48 VDC (48–56 adj)

92%

-20°C to +60°C (1)

4.88 x 2.36 x 4.45 (124 x 60 x 113)

1.98 (0.9)

Frequency: 47-63 Hz for all models
1. Depends upon specific model selection, output voltage and/or upon 120 or 240 VAC operation.

PLASTIC
Output Power
(Watts Max)

Amp
Rating

Voltage
Range AC

Output Voltage

Efficiency (1)

Operating
Temp

Dimensions H*W*D
Inches (mm)

Weight
LBS (Kg)

DMP1504

20 W

4.4 - 3.64

90-264 VAC

5 VDC (4.5-5.5 adj)

75%

-10°C to +50°C

3.54 x 0.90 x 4.02 (90 x 22.8 x 102)

0.35 (0.16)

DMP1120125

15 W

1.25 - 1.07

90-264 VAC

12 VDC (10-14 adj)

78%

-10°C to +50°C

3.54 x 0.90 x 4.02 (90 x 22.8 x 102)

0.29 (0.13)

Catalog No.

DMP112025

30 W

3.0 - 2.14

90-264 VAC

12 VDC (10-14 adj)

84%

-10°C to +50°C

3.54 x 0.90 x 4.02 (90 x 22.8 x 102)

0.35 (0.16)

DMP11204

50 W

5.0 - 3.57

90-264 VAC

12 VDC (10-14 adj)

83%

-10°C to +50°C

3.54 x 1.26 x 4.02 (90 x 32 x 102)

0.51 (0.23)

DMP11502

30 W

2.14 - 1.67

90-264 VAC

15 VDC (14-18 adj)

84%

-10°C to +50°C

3.54 x 0.90 x 4.02 (90 x 22.8 x 102)

0.35 (0.16)

DMP124006

15 W

0.68 - 0.54

90-264 VAC

24 VDC (22-28 adj)

81%

-10°C to +50°C

3.54 x 0.90 x 4.02 (90 x 22.8 x 102)

0.29 (0.13)

DMP1240125

30 W

1.36 - 1.07

90-264 VAC

24 VDC (22-28 adj)

85%

-10°C to +50°C

3.54 x 0.90 x 4.02 (90 x 22.8 x 102)

0.35 (0.16)

DMP12402

50 W

2.27 - 1.79

90-264 VAC

24 VDC (22-28 adj)

85%

-10°C to +50°C

3.54 x 1.26 x 4.02 (90 x 32 x 102)

0.51 (0.23)

DMP14801

50 W

1.09 - 0.96

90-264 VAC

48 VDC (46-52 adj)

85%

-10°C to +50°C

3.54 x 1.26 x 4.02 (90 x 32 x 102)

0.51 (0.23)

Plastic units not TUV certified.

Frequency: 47-63 Hz for all models
1. Depends upon specific model selection, output voltage and/or upon 120 or 240 VAC operation.

DM SERIES DIMENSIONAL DRAWINGS

Single Phase

120

SECTION 11_0412.indd 120

Slimline

Plastic

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:13 PM

SECTION

11

DM SERIES DIN-RAIL MOUNTED POWER SUPPLIES

DM Duplex Receptacle
DESCRIPTIONS
Packaged in a touch-proof enclosure to eliminate the
possibility of accidental shock. The universal mounting
foot allows the outlet box to be mounted either vertically
or horizontally in your panel. Touch-proof screw terminal
block provides a reliable connection.

FEATURES
■

DIN-rail mount duplex receptacle

■

Vertical or horizontal mounting

■

Snap on foot provides fast installation or can be fixed with
screws in control cabinet

■

Fits on 35 mm wide DIN-rail

■

Ground prong reversed for greater protection

■

Screw terminal connection via touch-proof terminal blocks

■

Available with GFI (Ground Fault Interrupting)

■

UR Recognized

GENERAL SPECIFICATIONS
Technical Data
Rated Voltage ............................................. 120 V AC
Rated Current ............................................. 15 AMPS
Maximum Wire Size .................................... #10 AWG

APPLICATIONS

Housing Data

■

Test & Diagnostic Equipment

Color ........................................................... Black

■

Computers/Printers

Material ....................................................... PVC V01550

■

Power Tools

Maximum Temperature .............................. 40°C

■

Soldering Iron

■

Displays

■

Lighting

■

Fan

Dimensions
Length ............................................................... 5.32 in. (135 mm)
Width ................................................................. 2.95 in. (75 mm)
Depth ................................................................ 2.56 in. (65 mm)

DM Duplex Receptacle Selection Chart
AMP

CATALOG
NUMBER

APPROX.
SHIP WEIGHT LBS (Kg)

15

DRR15

.41 (.19)

15

DRR15GFI

.46 (.21)

Figure 1
AC115-230V

2

Redundancy Applications
For critical load applications
redundancy may be required
All the DM Series power supplies can be connected in
parallel for redundancy, so if one power supply fails, there
is adequate power reserve in the remaining unit to continue
supporting the critical load (Reference Figure 1).

3

N

1

3
2

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

DC+
DC-

5
4

DC24V

Part No. DM1-2405-S

PE

1

SECTION 11_0412.indd 121

L

L
N

DC+
DC-

5
4

Part No. DM1-2405-S

121

6/13/12 12:13 PM

SECTION

11

DC POWER SUPPLIES

Unregulated Linear Power Supplies

C

®

Blackline Series 100 Watts to 750 Watts Bulk DC Linear Power
The “Blackline” series of Bulk DC power supplies have
high surge current capability, floating output, thermal
dissipation, and computer grade capacitors––all in
an open frame construction. Units are UL recognized.

FEATURES
High Surge Current Capabilities
MTBF to 500,000 hours per MIL 217E
n	 Maximum efficiency to 90%
n	 UL recognized to UL 1950
n	 FCC Level B EMI
n	 Floating output
n	 High quality transformer
n	 Open-frame construction
n	 Thermal dissipation
n	 Computer-grade capacitors
n	 Recognized to UL
n	
n	

APPLICATIONS

		

	 TYPICAL VDC OUTPUT
			
(@ 115 VAC IN)		
	 CATALOG NO.	 NO LOAD	
HALF LOAD	 FULL LOAD	

AMPS
FULL LOAD

	 100B7HA	10.6	 8.8	 7.9	10.0

122

	100B12HA	

14.8	

12.9	

11.7	

7.0

	100B20HA	

23.3	

20.8	

19.3	

5.0

	200B7HA	

12.3	

9.5	

8.2	

20.0

	200B20HA	

26.8	

22.5	

20.3	

10.0

	200B24HA	

34.4	

29.5	

27.1	

7.5

	200B48HA	

58.9	

48.2	

46.5	

4.0

	500B24HA	

31.0	

28.4	

26.7	

20.0

	500B48HA	

59.7	

50.2	

47.8	

10.0

	750B24HA	

33.3	

27.7	

25.5	

30.0

	750B48HA	

58.5	

49.7	

48.5	

15.0

	 DC Motors
DC Relays
n	 Industrial Machinery
n	 Battery Chargers
n	 Solenoids
n

n	

ELECTRICAL SPECIFICATIONS
AC INPUT
Input voltage is selectable by transformer taps for 115
or 230 Vac (10% taps are provided).
DC OUTPUT
VOLTAGE RATINGS: 7, 12, 16, 20, 24, 48 Volts
MAXIMUM RIPPLE: 3% rms at nominal line voltage,
at full rated load

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

11

SECTION

DC POWER SUPPLIES

Electrical & Mechanical Specifications
JUMPER CONNECTION

H

E

F
C

B1

B0

AC INPUT VOLTAGE

1

Input voltage is selectable by transformer taps for 115 or 230
Vac (10% taps are provided).
TAP
(Vac)

NOMINAL
(Vac)

HIGH-LINE
(Vac)

JUMPER
CONNECTION

115, -10%

103.5

113.9

#1

115, NOM

115.0

126.5

#2

115, +10%

126.5

139.2

#3

230, -10%

207.0

227.7

#4

230, NOM

230.0

253.0

#5

230, +10%

253.0

278.3

#6

3

2

4

INSULATION CLASS N-1

5

6

7

GT-C201 T

A

D

8

G

Frequency: 47 to 63 Hz with 10% ± primary taps.

A
SERIES

In.

(mm)

B0

B1

C

D

E

F

G

H MTG.
WEIGHT
DIA.
In.
Lbs. (kg)

In.

(mm)

In.

(mm)

In.

(mm)

In.

(mm)

In.

(mm)

In.

(mm)

In.

(mm)

15B

4.62 (117.3)

4.00

(101.6)

NA

NA

.31

(7.9)

2.09

(53.1)

1.60

(40.6)

.31

(7.9)

2.75

(69.8)

.20

1.7

(0.8)

30B

5.88 (149.3)

5.38

(136.6)

NA

NA

.25

(6.3)

2.72

(69.1)

2.19

(55.6)

.31

(7.9)

3.25

(82.5)

.22

2.6

(1.2)

60B

6.25 (158.7)

5.65

(143.5)

5.15

(130.8)

.25

(6.3)

3.00

(76.2)

2.73

(69.3)

.35

(8.9)

3.71

(94.2)

.22

4.0

(1.8)

100B

7.12 (180.8)

6.42

(163.1)

5.87

(149.1)

.35

(8.9)

3.25

(82.5)

2.88

(73.1)

.30

(7.6)

4.00

(101.6)

.22

6.7

(3.0)

200B

8.10 (205.7)

7.50

(190.5)

6.90

(175.3)

.25

(6.3)

3.88

(98.5)

3.80

(96.5)

.30

(7.6)

5.00

(127.0)

.26

12.2

(5.5)

500B

9.00 (228.6)

8.24

(207.6)

NA

NA

.35

(8.9)

4.62

(117.3)

2.50

(63.5)

1.56

(39.6)

5.62

(142.7)

.28

20.0

(9.1)

750B

9.50 (241.3)

8.50

(215.9)

NA

NA

.50

(12.7)

5.56

(141.2)

6.62

(168.1)

.50

(12.7)

8.00

(203.2)

.28

28.5

(12.9)

Inside mounting hole center line dimension applicable to Blackline 60B, 100B and 200B Series only.
B 0 - Outside mounting hole center line. B1 - Inside mounting hole center line.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION 11_0412.indd 123

123

6/13/12 12:13 PM

SECTION

11

DC POWER SUPPLIES

Regulated Linear Power Supplies
SPS Blueline Series 2.0 to 144 Watts of DC Power
The “SPS Blueline” series provides 15 to 120 watts of DC
power with adjustable output voltages and selectable inputs
of 115/230 VAC, 47-440 Hz. Floating outputs on most models
and optional OVP on most models for greater versatility.

FEATURES
■
■
■
■
■
■
■
■

Adjustable output voltage
Selectable input 120/240 Vac, 50/60 Hz
Wide operating temperature range
Remote sense capability on each output
Overvoltage protection available on all outputs
Overload protection with automatic recovery
UL Recognized, CSA Certified
Most outputs rated SELV

APPLICATIONS
■
■
■
■

OUTPUT
CATALOG NO.

VDC

AMPS

SPS3012

12

1.8

SPS6012

12

5.0

SPS12012

12

10.0

(*) SPS152428

24/28

0.8/0.6

SPS302428

24/28

1.2/1.0

All outputs are potentiometer adjustable
(*) 120 Vac operation only

■

Instrumentation
Control Circuits
Data Processing
Microprocessor Circuits
Electronic Circuits

ELECTRICAL SPECIFICATIONS
AC INPUT
INPUT VOLTAGE:

120/(240) Vac on most models

INPUT FREQUENCY:

50/60 Hz

DC OUTPUT
OUTPUT VOLTAGE/CURRENT: See selection chart
VOLTAGE ADJUSTMENT RANGE: + 5% minimum

124

SECTION 11_0412.indd 124

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:13 PM

11

SECTION

DC POWER SUPPLIES
SPS 60 SERIES

SPS 15 SERIES

0.44 (11.18)

(4) 8-32 MTG.

5.016 (127.4)
MAX

3.44 (87.38)

4.68 (118.87)

4.50 (114.3)

4.00 (101.60)
0.12 (3.05)

0.25 (6.35)

1.62 (41.15)

3.25 (82.55)

2.39 (60.7)

0.38 (9.65)

0.31 (7.87)

0.219 (5.55)

5.38 (136.65)

4.82 (122.43)

6.00 (152.40)

4.94 (125.48)

1.62 (41.15)
0.38 (9.65)

Weight: 2.14 lbs (1.3 kg)

Weight: 7.1 lbs (3.2 kg)

SPS 30 SERIES

SPS 120 SERIES

6.30 (160.00)

4.75 (120.65)

0.35 (8.89)

5.00 (127.00)

0.35 (8.89)

4.88 (123.95)

4.00 (101.60)

2.50 (63.50)

2.70 (58.60)

3.25 (82.55)
1.25 (31.75)

6.60 (167.64)

(5) 8-32 MTG.

3.19 (81.03)

3.75 (95.25)

2.50 (63.50

0.38 (9.65)

(2) 6-32 MTG.
(2) 0.172 (4.37)

1.44 (36.58)
7.00 (177.80)

0.38 (9.65)
0.50 (12.70)

3.00 (76.20)

0.50 (12.70)

Weight: 3.3 lbs (1.5 kg)

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION 11_0412.indd 125

Weight: 12.4 lbs (5.6 kg)

125

6/13/12 12:13 PM

11

SECTION

DC POWER SUPPLIES

Regulated Linear Power Supplies
SPW Series 15 Watts to 175 Watts
FEATURES
■
■
■
■
■
■
■
■

Worldwide AC input range
Worldwide safety standards
Industry standard package
Built-in OVP on 5V output
Optional OVP for other outputs
Overload protection with automatic recovery
100% burn-in
Recognized to UL, CSA Certified, and CE Listed

APPLICATIONS
■
■
■
■
■

The “SPW” series regulated linear power supplies are
accepted world-wide for selectable AC input voltages of
100 through 240 V and meet UL, CSA and TUV standards.
These units have overload protection with automatic
recovery and 100% burn-in. All 5V output models have
built-in over voltage protection.

ELECTRICAL SPECIFICATIONS
AC INPUT
INPUT VOLTAGE:

100/120/220/230/240 selectable

INPUT FREQUENCY:

47 to 63 Hz typical 60 Hz

DC OUTPUT
OUTPUT ADJUSTMENT RANGE: + 5% minimum

OUTPUT 1
CATALOG NO.

Instrumentation
Control Circuits
Data Processing
Microprocessor Circuits
Electronic Circuits

VDC

AMPS

CASE

SPWS53OV

5

3.0

A

SPWS2424

24

2.4

B

SPWS2436

24

3.6

C

SPWS2448

24

4.8

D

SPWS2472

24

7.2

E

AC INPUT JUMPER INFORMATION
FOR USE AT

100Vac

120Vac

220Vac

Jumper

1-3, 2-4

1-3, 2-4

2-3

2-3

1&5

1&4

1&5

1&4

Apply AC

126

SECTION 11_0412.indd 126

230/240Vac

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:13 PM

11

SECTION

DC POWER SUPPLIES
B CASE

A CASE
OVP
(OPTIONAL)

.378 (9.6)

AC
INPUT

.39 (10.0)
0.433 (11.0) 4.875 (124.0)

OVP
(OPTIONAL)

V ADJ.

V ADJ

AC INPUT
1.28 (32.5)

.188 (4.8) D. MTG HOLES (12 PLACES)

0.72 (16.3)

.744 (18.9)

2.50 (62.8)

.39 (10.0)

.188 (4.80) D. MTG HOLES (8 PLACES)

Weight: 4 lbs (1.8 kg)

.366 (9.3)

Weight: 2.43 lbs (1.1 kg)

D CASE

C CASE

DC OUTPUT

OVP (OPTIONAL)
11.00 (279.5)

AC INPUT

DC OUTPUT

DC OUTPUT
1.248 (31.7)

7.0 (178.0)
.38 (9.6)

0.72 (18.3)
0.44 (11.2)
MAX

4.118 (104.5)

.744 (18.9)

0.48 (12.2)

DC OUTPUT
5.62 (142.6)

4.142 (105.2)

3.370 (85.6)

0.252 (6.4)

1.62 (41.0)

4.843 (123.0)

3.992 (101.4)

1.28 (32.5)

4.87 (123.5)

DC OUTPUT

1.25 (32.0)

.185 (4.7)

7.50 (190.5)

3.00 (76.5)

.75 (19.0)
.41 (10.5)

.75 (19.1)
.56 (4.2) MAX

6.25 (158.8)

.50 (12.7)

.50 (12.9)

.188 (4.8) D. MTG HOLES
(16 PLACES)

OVP (OPTIONAL)

3.37 (56.0)

V ADJ

AC INPUT

.39 (10.0)

V ADJ

4.80 (1.88) D. MTG HOLES
(16 PLACES)

.75 (19.0)

1.248 (31.7)

Weight: 8.82 lbs (4 kg)

.75 (19.1)

2.75 (69.9)

2.75 (70.0)

.37 (9.5)

V ADJ

.25 (32.0)

4.87 (123.7)

4.125 (104.5)

4.0 (102.0)

COMM

Weight: 7.28 lbs (3.3 kg)

E CASE
14.0 (355.60)
.50 (12.70)

1.25 (31.75)

13.0 (330.20)

4.87 (123.70)

4.125 (104.78)

.75 (19.05)
DC OUTPUT
AC INPUT

OVP OPTIONAL

.50 (12.70)
2.75 (69.85)
.188 (4.80) D. MTG HOLES
(16 PLACES)

1.25 (31.75)

.130 (3.30)

.65 (16.51)

.75 (19.05)

Weight: 8.82 lbs (4 kg)
NOTE: Dimensions are in inches (mm)

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION 11_0412.indd 127

127

6/13/12 12:13 PM

SECTION

11

DC POWER SUPPLIES

Frequently Asked Questions
Q What is a power supply and what does it do?
A A power supply is an electronic device that converts AC line power to
one or more individual DC outputs.

Q What is remote sensing?
A Remote sensing is a method of moving the point of regulation
from the output terminals to the load.

Q What is an unregulated power supply and where are they used?
A An unregulated power supply provides DC voltage for applications
that do not require close tolerance DC output regulation. Typical
applications for unregulated power supplies are DC motors, relays,
and solenoids.

Q Why should the sense terminals be connected in either local or
remote?
A If the sense leads are not connected, this could cause the output
voltage to go high. If the output has over-voltage protection, the
output will shut down.

Q What is a regulated linear DC power supply and where are they used?
A This is a power supply that, through additional circuitry,series pass
transistors and linear IC’s; provides a regulated, low noise DC voltage.
Typical applications are IC’s, micro-processors, keyboards and disc
drives.

Q Are there any special considerations that provisions must be made for
when remote sensing?
A Yes, when remote sensing is used, the sense leads must be as
short as possible and twisted to avoid picking up stray noise.

Q How are the input connections made on linears?
A All of the linear power supplies offered require the AC input to be
connected directly to the transformer.
Q How are the output connections made on linears?
A All of the output connections on the linears are via solder barrett
terminals. The linears require the customer to solder directly to
the turret terminals.
Q What is a switching power supply?
A This is a supply which converts the AC source to a high voltage
(typically 350 VDC). This high voltage is used in turning on and off
power switching transistors or MOSFETs to produce a DC current
and voltage. The high voltage and high switching frequency (20 KHz
to 100 KHz) allows a switchmode power supply to be more efficient.
That is, it needs less AC current to produce equivalent DC current than
a linear power supply, resulting in less heat and a smaller package.
Q Can power supplies be operated at line frequencies other than 60 Hz?
A Yes, the Standard Power line of DC power supplies operates on 50 to
60 Hz.
Q What is efficiency?
A Efficiency is the ratio of the output power to input power. It is
generally measured at full load and nominal line conditions and
expressed as a percentage.
Q What is overvoltage protection (OVP)?
A Overvoltage protection is a protection mechanism for the load
circuitry that prevents the output voltage from exceeding a
preset limit.

Q What is foldback current limit?
A Foldback current limit is a protective circuit of the power supply
output. The foldback current limit is preset at 120% of the rated
output current of the supply. If this output value is exceeded, the
circuit folds back the current so that only 40% of the rated current is
delivered. This prevents the power supply from trying to deliver
more than it is capable of and overheating.
Q If the current limit foldback is activated, does the power supply
have to be manually reset?
A No, the unit will reset automatically.
Q What would be some possible causes of a power supply overheating?
A A. Outputs overloaded.
B. Poor ventilation.
C. Improper connection on primary side of transformer.
D. AC input voltage too high.
E. Power supply is running at full load in an environment that
exceeds temperature specs. The power supply should be derated.
Q What are floating outputs?
A Floating outputs are outputs on the supply that do not share a
common return which enable the user to switch polarities.
Q What is switching frequency?
A Switching frequency is the rate at which the high source voltage is
switched in a switching regulator.
Q What is the switching frequency of Standard Power switchers?
A 20 to 100 KHz.

Q If a switcher’s output shuts down the overvoltage protection
circuit, can the unit turn on by itself?
A No, you must manually re-cycle (turn off, then turn on) the AC
input power.

Q What is meant by the adjustment range of the output of a power
supply?
A The adjustment range is how much the output of the supply can be
adjusted or changed from its rated output. This is expressed as a
percentage and is accomplished through the use of a potentiometer.

Q Do all power supplies require an AC ground?
A Yes, all AC input connections require a ground. On the switching
power supplies, the ground is provided on the AC barrier strip or
chassis. Linear power supplies have AC grounding directly on the
transformer or chassis.

Q What is ripple?
A Ripple or PARD, as it is sometimes referred to, is the Periodic and
Random Deviation of the output voltage. This is usually noise
induced from other sources.

Q Can a power supply be loaded according to its wattage rating alone?
A No, each output on a power supply is rated for voltage and current.
The power supply is selected for each application according to the
voltage and current requirements.
Q What is meant by regulation in a power supply?
A Regulation is the change in value of DC output voltage resulting
from a change in either the output’s load or the AC line voltage.
Q What is a regulator?
A The regulator is the part of the power supply that controls the
output voltage level when there is a change in the line or load.
128

SECTION 11_0412.indd 128

Q What is hold-up time?
A Hold-up time is the total time an output will remain within its
regulation after the input line voltage has been turned off.
Q What is the mean time between failure (MTBF)?
A The MTBF is the parameter used to compare the reliabilities of
power supplies. It is expressed in hours.
Q Are UL designations acceptable everywhere?
A Not necessarily. There are similar agencies all over the world, but
their specifications for safety vary. Many of Standard Power’s
products are certified to CSA and CE licensed by TUV for IEC and
VDE.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:13 PM

S E CTI O N

12

POWERWISE C3
Acme High Efficiency Powerwise
C3 transformers provide the
perfect solution for LEED and green
facilities or end users looking for
the lowest total cost of ownership
in transformer design. See
acmepowerdist.com/c3 for energy
savings calculator.
CSL-3 Super Efficient Transformers ................. 130
General Description and Features ............130-131
Selection Charts................................................ 132

SECTION 12_0412.indd 129

6/13/12 12:15 PM

SECTION

12

POWERWISE C3 TRANSFORMER

A New Standard in Transformer Efficiency
In January 2007, the Energy Policy Act of 2005 (EPAct 2005) set the minimum
efficiency level (TP1) for transformers. While this standard sets a minimum
performance level, transformers rated at TP1 do not provide the greatest
efficiency or offer the lowest life cycle cost.
Acme POWERWISE C3 transformers are 30% better performing in efficiency
than standard TP1 transformers. Thanks to a more efficient core and highergrade electrical steel that minimizes losses, these energy-efficient units even
exceed the requirements of the US Department of Energy Candidate Standard
Level (CSL) 3 performance standard, commonly referred to as “C3.”
Depending on the kVA size, this increase in efficiency can save thousands of
dollars in energy costs per transformer. Whether you are looking to upgrade
your older pre-TP1 transformers or specify the highest-efficiency transformers
on your new project, Acme POWERWISE C3 transformers can deliver the
power and performance you need.

CSL-3 Efficiency

15 kVA

30 kVA

45 kVA

75 kVA

112.5 kVA

150 kVA

225 kVA

300 kVA

500 kVA

97.9%

98.3%

98.4%

98.6%

98.7%

98.8%

99.0%

99.0%

99.1%

Within a typical facility, increasing the efficiency of your transformers can provide significant savings in a short period of time.
Payback usually occurs within 2.5 to 3.5 years, thanks in large part to our no-load losses. Because no-load losses are present
even when the transformers are lightly loaded, they are critical to overall efficiency — and POWERWISE losses are up to 40%
less than traditional TP1 designs.

No-Load Loss

15 kVA

30 kVA

45 kVA

75 kVA

112.5 kVA

150 kVA

225 kVA

300 kVA

70W

90W

130W

160W

240W

280W

370W

550W

EVALUATING TOTAL COST OF OWNERSHIP
Total Cost of Ownership = Initial Cost + Yearly Energy Cost
Cost over the life of the installation should be the most important factor when deciding which technology to use. Since the typical
transformer lasts 25 to 30 years, the total life cycle cost far outweighs the initial purchase price of the transformer. The electricity
wasted by low initial-cost transformers can amount to millions of wasted kilowatt hours over the operational life of the installation.

TYPICAL APPLICATIONS INCLUDE:
■

Educational Facilities (K–12/University)

■

Government Buildings

■

Manufacturing Facilities

■

Office and Commercial Buildings

■

Healthcare/Hospital/Medical Office Buildings

■

Financial Institutions

■

Data Processing Centers

■

Wastewater and Sewage Treatment Facilities

■

Correctional Facilities

■

Industrial Facilities

130

SECTION 12_0412.indd 130

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:15 PM

SECTION

12

POWERWISE C3 TRANSFORMER

APPLICATIONS

SPECIFICATIONS

The Acme POWERWISE C3 transformer is the ideal

Windings ...........................Copper

transformer for commercial environments where

Insulation Class.................220° C

energy efficiency is a primary concern. It is a perfect

Degree Rise ......................115° C or 130° C

choice for K through 12, college, university, healthcare,

Noise Levels......................Per NEMA ST-20 -5dB low noise

governmental and commercial buildings where the

Rated for 60 Hertz ............

total life cycle cost of the facility and its electrical
system is a priority.

DESIGN
The Acme POWERWISE C3 sets new standards for
efficiency and reliability. Through more efficient core
material and higher-grade electrical steel, losses are
minimized and performance is maximized. Acme
POWERWISE C3 transformers are copper wound,
3-phase common-core, dry type ventilated isolation
transformers. Each transformer is meticulously

K Rating ............................K-13
Voltage Taps ..................... Voltage Taps: 15 through 500 kVA
(2)
2-1/2% ANFC, (4) 2-1/2% BNFC
Neutral Conductor ............200% Rated
Electrostatic Shield ...........Standard
Enclosure .......................... Ventilated NEMA 2 (NEMA 3R
available with drip shield)

ADDITIONAL FEATURES & BENEFITS
■

Exceeds US DOE CSL-3 efficiency to help you reduce
electrical waste and provide sustainability in your
electrical design

■

Significantly exceeds TP1 efficiency for low operating
cost over the life of the transformer

■

Optimized design provides maximum reliability and
proven performance

■

Produced in an ISO 9001 facility to ensure high quality
and rigorous testing standards

constructed to ANSI/IEEE Standards and is UL
and CSA listed.

ENVIRONMENTAL EFFICIENCY
Acme POWERWISE transformers are the most efficient
commercially available transformers. Because they
generate lower losses, they reduce power drawn from
generating stations, resulting in lower greenhouse gas
emissions and less smog. The result is a win for the
environment and a win in terms of lowest transformer
life cycle costs.

WARRANTY
Acme POWERWISE C3 transformers are subjected to
rigorous quality electrical and insulation tests in our
ISO 9001-certified facility, and they are backed by our
25-year pro-rated warranty.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SECTION 12_0412.indd 131

131

6/13/12 12:15 PM

SECTION

12

POWERWISE C3 TRANSFORMER

SELECTION CHARTS
W
NE

GROUP D6
POWERWISE C3 - 115 C RISE - COPPER WINDINGS
CSL 3 Efficiency (exceeds TP1)
480 DELTA PRIMARY VOLTS - 208Y120 SECONDARY VOLTS - MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY - 3Ø, 60 Hz
kVA

15

APPROX. DIMENSIONS ②
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

350 (158.8)

CATALOG NO.

TPC3533111S

TYPE MTG.
W – Wall
F – Floor

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

F

WSA1

22-E

30

TPC3533121S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

385 (174.6)

F

WSA2

22-E

45

TPC3533131S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

455 (206.4)

F

WSA2

22-E
22-E

TPC3533141S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

585 (265.4)

F

WSA3

112.5

75

TPC3533151S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1020 (462.7)

F

WSA4

22-E

150

TPC3533161S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1260 (571.5)

F

WSA4

22-E

225

TPC3533171S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1410 (639.6)

F

WSA4

22-E

300

TPC3533181S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1860 (843.7)

F

WSA5

22-E

500

TPC3533191S

57.80 (146.8)

45.60 (115.8)

41.50 (105.4)

3350 (1519.5)

F

WSA7

22-G

W
NE

GROUP D7
POWERWISE C3 - 130 C RISE - COPPER WINDINGS
CSL 3 Efficiency (exceeds TP1)
480 DELTA PRIMARY VOLTS - 208Y120 SECONDARY VOLTS - MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY - 3Ø, 60 Hz
kVA

15.0

APPROX. DIMENSIONS ②
Inches (Cm.)
HEIGHT

WIDTH

DEPTH

APPROX.
SHIP WEIGHT
Lbs. (Kg.)

25.50 (64.8)

24.39 (61.9)

19.37 (49.2)

350 (158.8)

CATALOG NO.

TPC3533113S

TYPE MTG.
W – Wall
F – Floor

WEATHER
SHIELD
P/N

Wiring Diagrams &
Design Figures
Begin on Page 154

F

WSA1

22-E

30.0

TPC3533123S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

380 (172.4)

F

WSA2

22-E

45.0

TPC3533133S

29.41 (74.7)

28.15 (71.5)

22.37 (56.8)

440 (199.6)

F

WSA2

22-E

75.0

TPC3533143S

35.47 (90.1)

31.90 (81.0)

26.88 (68.3)

560 (254.0)

F

WSA3

22-E

112.5

TPC3533153S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1000 (453.6)

F

WSA4

22-E

150.0

TPC3533163S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1220 (553.4)

F

WSA4

22-E

225.0

TPC3533173S

41.52 (105.5)

32.90 (83.6)

29.87 (75.9)

1385 (628.2)

F

WSA4

22-E

300.0

TPC3533183S

45.60 (115.8)

39.50 (100.3)

35.50 (90.2)

1820 (825.5)

F

WSA5

22-E

500.0

TPC3533193S

57.80 (146.8)

45.60 (115.8)

41.50 (105.4)

3250 (1474.2)

F

WSA7

22-G

132

SECTION 12_0412.indd 132

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:15 PM

G E NE RAL

ACME ®
TRANSFORMER™
GENERAL
INFORMATION
Design Figures, Wiring Diagrams,
Accessories, Specification
Guides, Industry Standards and
Alphanumerical Catalog
Number Index
Design Figures.........................................................134
Wiring Diagrams ..............................................135–144
Transformer Accessories ................................145–146
Specification Guides .......................................147–150
Industry Standards ..................................................151
Alphanumerical Catalog Number Index .........152–156

General 0412.indd 133

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
DESIGN
DIAGRAMS
FIGURES

GENERAL

Design Figures
Sections I, II, III & IV

D

These drawings are for reference only.
Contact factory for certified drawings.

H

W

Design A

D

D

D

W
H

H

H

W

W

Design B

Design C

Design D

D

D

D
H

H
H

W

W

W

Design E

Design F

Design G

D
D

H
H

W

Design H
134

General 0412.indd 134

W

Design I
ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

Wiring DiagramsSections I, II, III & IV

1

PRIMARY: 240 X 480
SECONDARY: 120/240
TAPS: None

2
H4

H1
H3

H2

X2

X3

X4

Primary
Volts
480

Connect
Primary
Lines To

H2 to H3

480
240

Secondary Volts

H2

X2

X3

H2

X2

Connect
Secondary
Lines To

InterConnect

H1-H4
H1-H3 &
H2-H4

X2 to X3
X2 to X3
X1 to X3
X2 to X4

120

X1-X4
X1-X2-X4

240
120/240

X1-X4

120

PRIMARY: 240 X 480
SECONDARY: 120/240
2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC
H5 H6

H1

H2 to H3

5

X2 to X3
X2 to X3
X1 to X3
X2 to X4

X1-X4
X1-X2-X4
X1-X4

PRIMARY: 240 X 480
SECONDARY: 120/240
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC

X2

H7 H8 H9

216

H1-H10

228

H1-H10

240

H1-H10

252

H1-H10

432
H1-H10
444
H1-H10
456
H1-H10
468
H1-H10
480
H1-H10
492
H1-H10
504
H1-H10
Secondary Volts
240
120/240
120

1

2

4

X2

InterConnect
H1 to H9
H10 to H2
H1 to H8
H10 to H3
H1 to H7
H10 to H4
H1 to H6
H10 to H5
H2 to H9
H3 to H9
H3 to H8
H4 to H8
H4 to H7
H5 to H7
H5 to H6

5

6

7

Connect
Secondary
Lines To

X1-X4
X1-X3-X4
X1-X4

Primary
Volts

Connect
Primary
Lines To

216

H1-H4

228

H1-H4

240

H1-H4

252

H1-H4

432
H1-H4
444
H1-H4
456
H1-H4
468
H1-H4
480
H1-H4
492
H1-H4
504
H1-H4
Secondary Volts
240
120/240
120

Connect
InterSecondary
Connect
Lines To
H1, H3, 8 &
H2, H4, 1
H1, H3, 7 &
H2, H4, 2
H1, H3, 6 &
H2, H4, 3
H1, H3, 5 &
H2, H4, 4
H2, 1 & H3, 8
H2, 2 & H3, 8
H2, 2 & H3, 7
H2, 3 & H3, 7
H2, 3 & H3, 6
H2, 4 & H3, 6
H2, 4 & H3, 5

X3

H1-H8

240

H1-H7

228

H1-H6

504
492
480

H1-H8
H1-H8
H1-H7

Connect
Secondary
Lines To

InterConnect
H1 to H5
H4 to H8
H1 to H5
H3 to H7
H1 to H5
H2 to H6
H4 to H5
H3 to H5
H3 to H5

468
H1-H7
456
H1-H6
Secondary Volts
240
120/240

H2 to H5
H2 to H5
X2 to X3
X2 to X3
X1 to X3
X2 to X4

X1-X4
X1-X2-X4
X1-X4

PRIMARY: 208
SECONDARY: 120/240
TAPS: 2, 5% BNFC
H4

H1
H2

X2

H3

X3

X4

Connect
Primary
Primary
Volts
Lines To
208
H1 & H4
198
H1 & H3
187
H1 & H2
Secondary Volts
240
120/240
120

X1

InterConnect

X2 to X3
X2 to X3
X1 to X3
X2 to X4

Connect
Secondary
Lines To

X1-X4
X1-X2-X4
X1-X4

X1-X4
X1-X2-X4
X1-X4

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 135

252

6

X1

X2 to X3
X2 to X3
X1 to X3
X2 to X4

H7

8

X3

X4

X1

X2 to X3
X2 to X3
X1 to X3
X2 to X4

3

H8
H6

X1

H4

X3

X4

Primary
Volts

Primary
Volts

Connect
Primary
Lines To

120

H2

H3

H10
H1

H2 H3 H4

Connect
Primary
Lines To

H3

X4

X1

Connect
Primary
Lines To

H4 H5

H1

Secondary Volts

240
120/240

4

Primary
Volts

PRIMARY: 240 X 480
SECONDARY: 120/240
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC

H4
H3

X4

Connect
Secondary
Lines To

InterConnect

3

H1

X1

H1-H4
H1-H3 &
H2-H4

240

PRIMARY: 240 X 480
SECONDARY: 120/240
TAPS: None

135

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

7

PRIMARY: 277
SECONDARY: 120/240
TAPS: 2, 5% BNFC

8

H1
H2

X2

Connect
Primary
Lines To
H1 & H4

263
250

H1 & H3
H1 & H2

Secondary Volts
240

H4

H1

X1

X4

PRIMARY: 600
SECONDARY: 120/240
TAPS: None

9

H2

H1

H2

H3

X2

X3

X2

X4

Primary
Volts
277

PRIMARY: 600
SECONDARY: 120/240
TAPS: None

InterConnect

Connect
Secondary
Lines To

X3

X1-X4

120/240

X2 to X3

X1-X2-X4

120

X1 to X3
X2 to X4

X1-X4

Primary
Volts

240
120/240

X2 to X3
X2 to X3

X1-X4
X1-X2-X4

240

X2 to X3

X1-X4

120/240

X1-X2-X4

120

X1 to X3
X2 to X4

X1-X4

X2 to X3
X1 to X3
X2 to X4

InterConnect

600
H1-H2
Secondary Volts

120

12

10

11

H2

3

PRIMARY: 600
SECONDARY: 120/240
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

H4

H1

H2

H1

2

H3

1

2

3

4

5

6
1

X2

X4

X1

Connect
Primary
Primary
Volts
Lines To
600
H1-H4
570
H1-H3
540
H1-H2
Secondary Volts
240
120/240
120

13

X2

X3

X4

InterConnect

X2 to X3
X2 to X3
X1 to X3
X2 to X4

Connect
Secondary
Lines To

X1-X4
X1-X2-X4
X1-X4

PRIMARY: 120 x 240
SECONDARY: 120/240
TAPS: None
H3

X2
X4

Connect
Primary
Primary
Volts
Lines To
240
H1-H4
H1-H3
&
120
H2-H4
Secondary Volts
240
120/240
120

136

General 0412.indd 136

Connect
Primary
Primary
Volts
Lines To
540
H1-H2
555
H1-H2
570
H1-H2
585
H1-H2
600
H1-H2
615
H1-H2
635
H1-H2
Secondary Volts
240
120/240
120

H4

H1

X1-X4

PRIMARY: 240
SECONDARY: 120/240
TAPS: None
1

PRIMARY: 600
SECONDARY: 120/240
TAPS: 2, 5% BNFC

Connect
Secondary
Lines To

Connect
Secondary
Lines To

600
H1-H2
Secondary Volts

X2 to X3

X1

Connect
Primary
Lines To

InterConnect

Primary
Volts

Connect
Primary
Lines To

X3

X4

X1

X3
X1

InterConnect
1-6
1-5
2-6
2-5
3-5
2-4
3-4
X2 to X3
X2 to X3
X1 to X3
X2 to X4

Connect
Secondary
Lines To

3

Connect
Primary
Primary
Volts
Lines To
240
1-3
Secondary Volts
240
120
120/240

14

X1

InterConnect
H2 to H3

X2 to X3
X2 to X3
X1 to X3
X2 to X4

Connect
Secondary
Lines To

X1-X4
X1-X2-X4
X1-X4

H10

H5 H6
H2 H3 H4

X1-X4
X1-X2-X4

X2

H7 H8 H9

X3

X4

Primary
Volts

Connect
Primary
Lines To

190

H1 & H7

200

H1 & H8

208

H1 & H9

220

H1 & H10

H2

X3

1-3
1-2 or 2-3
1-2-3

EXPORT MODEL
PRIMARY: 190-220 x 380-440
SECONDARY: 120/240
H1

X1-X4

Connect
Secondary
Lines To

InterConnect

380
H1 & H7
400
H1 & H8
416
H1 & H9
440
H1 & H10
Secondary Volts
240
120/240
120

X1

InterConnect
H1 to H6
H2 to H7
H1 to H6
H3 to H8
H1 to H6
H4 to H9
H1 to H6
H5 to H10
H2 & H6
H3 & H6
H4 & H6
H5 & H6
X2 to X3
X2 to X3
X1 to X3
X2 to X4

Connect
Secondary
Lines To

X1-X4
X1-X2-X4
X1-X4

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

15

EXPORT MODEL
PRIMARY: 190-220 x 380-440
SECONDARY:120/240

16

INPUT LINE

H2

H3

1

H4

H1
1

3

2

4

X2

5

6

7

Primary
Volts

InterConnect

190

H1 & H4

H1, H3, 8 &
H2, H4, 1

208

H1 & H4

220

H1 & H4

380

H1 & H4

400

H1 & H4

H2, H3, 2, 7

416
H1 & H4
440
H1 & H4
Secondary Volts
240

H2, H3, 3, 6
H2, H3, 4, 5

120

Connect

120

1, 3, 6, 8 to A
2, 5, 7, 10 to B
1, 6 to A
4, 9 to B
2, 3 to C
7, 8 to D

X2 to X3
X1 to X3
X2 to X4

X1-X2-X4

Volts

3 2 1

120/240

H2

3 2 1

208

H3

3 2 1

240
X0

X1

Connect
Primary
Primary
Volts
Lines To
240
H1, H2, H3
228
H1, H2, H3
216
H1, H2, H3
Secondary Volts
208
120
1 phase

X2

InterConnect
1
2
3

X3

Connect
Secondary
Lines To

4, 9

4, 9

Output
Lines
To

Connect
11 to F
12 to G
14 to H
11 to F
12 to G
14 to H
11 to F
12 to G
13 to H
11 to F
12 to G
14 to H

120

H1

5, 10

1 to A
10 to B
480
2, 3 to C
5, 6 to D
7, 8 to E
Output Connections

X1-X4

PRIMARY: 240 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 5% BNFC

4, 9

1, 6 to A
5, 10 to B
2, 3 to C
7, 8 to D

240

X1-X4

&
Isolate

Volts

208

X2 to X3

X4

Input ConnectionsInsulate

H1, H3, 7 &
H2, H4, 2
H1, H3, 6 &
H2, H4, 3

F, H

H1

5 4 3 2 1

X0

X1

Connect
Primary
Primary
Volts
Lines To
252
H1, H2, H3
246
H1, H2, H3
240
H1, H2, H3
234
H1, H2, H3
228
H1, H2, H3
Secondary Volts
208
120
1 phase

H2

5 4 3 2 1

X2

InterConnect
1
2
3
4
5

H3

5 4 3 2 1

X3

Connect
Secondary
Lines To

H2

218
213

H1 & H2
H1 & H2

3 to 4
2 to 4

208
203

H1 & H2
H1 & H2

3 to 5
2 to 5

198
192

H1 & H2
H1 & H2

1 to 5
2 to 6

187
H1 & H2
Secondary Volts

1 to 6

X1

Connect
Secondary
Lines To

240

X2 to X3

X1-X4

120/240

X2 to X3
X1 to X3
X2 to X4

X1-X2-X4

120

20

X1-X4

PRIMARY: 380 Volts Delta
SECONDARY: 220Y/127 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

76 5 4 3 21

X0

X1

Connect
Primary
Primary
Volts
Lines To
399
H1, H2, H3
390
H1, H2, H3
380
H1, H2, H3
371
H1, H2, H3
361
H1, H2, H3
352
H1, H2, H3
342
H1, H2, H3
Secondary Volts
220
127
1 phase

H2
76 5 4 3 21

X2

InterConnect
1
2
3
4
5
6
7

H3
76 5 4 3 21

X3

Connect
Secondary
Lines To

X1, X2,X3
X1 to X0
X2 to X0
X3 to X0

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 137

InterConnect

H1

F, H

X3

Connect
Primary
Lines To

F, G, H

PRIMARY: 240 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

X2

Primary
Volts

F, G

NOTE: To prevent externally shorting, all leads marked
“INSULATE” must be individually capped with wire
nuts or equivalent. Insulate leads individually!

19

4 5 6

14

9
10

Connect
Secondary
Lines To

H1, H3, 5 &
H2, H4, 4
H2, H3, 1, 8

120/240

12
13

1 2 3

F
G
H

7
8
X1

H1 & H4

H1

11

4
5
6

X3

X4

200

2
3

A
B
C
D
E

8

Connect
Primary
Lines To

18

PRIMARY: 208 Volts
SECONDARY: 120/240 Volts
TAPS:

17

POWER LINE CONDITIONER

137

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

21

PRIMARY: 480 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 5% BNFC
H1

PRIMARY: 480 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

22

H2

H1

H3

3 2 1

3 2 1

3 2 1

X1

X2

X3

7 6 5 4 3 2 1

23

H2

7 6 5 4 3 2 1

PRIMARY: 120/208/240/277 Volts
SECONDARY: 120/240 Volts
H2 H3 H4 H5

H1

H3

7 6 5 4 3 2 1

X4
X0

Primary
Volts
480

Connect
Primary
Lines To
H1, H2, H3

InterConnect
1

456
432

H1, H2, H3
H1, H2, H3

2
3

Secondary Volts
208

Connect
Primary
Lines To

InterConnect

504
492

H1, H2, H3
H1, H2, H3

1
2

480
468

H1, H2, H3
H1, H2, H3

3
4

X1, X2, X3

456

H1, H2, H3

5

X1 to X0
X2 to X0
X3 to X0

444
432

H1, H2, H3
H1, H2, H3

6
7

PRIMARY: 380 Volts Delta
SECONDARY: 220Y/127 Volts
TAPS: 2, 5% BNFC

321

Primary
Volts
380
361
342

InterConnect
1
2
3

127
1 phase

2 4 6

2 4 6

H2

3 2 1

X4

X1

H2

5 3 1

H1

Connect
Secondary
Lines To

PRIMARY: 480 Volts Delta
SECONDARY: 240 Volts Delta/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

5 3 1

Connect
Primary
Primary
Volts
Lines To
480
H1, H2, H3
456
H1, H2, H3
432
H1, H2, H3
Secondary Volts
240

Connect
Primary
Primary
Volts
Lines To
504
H1, H2, H3
492
H1, H2, H3
480
H1, H2, H3
468
H1, H2, H3
456
H1, H2, H3
444
H1, H2, H3
432
H1, H2, H3
Secondary Volts
240
120

138

General 0412.indd 138

X4

3 2 1

X2

X3

InterConnect
1 to 2
2 to 3
1 to 4
3 to 4
1 to 6
3 to 6
5 to 6

Connect
Secondary
Lines To

InterConnect
1
2
3

X1, X2, X3
X1, X4 or
X2, X4

120

2 4 6

28

PRIMARY: 600 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 5% BNFC

3 2 1

Connect
Secondary
Lines To
X0

X1

Connect
Primary
Primary
Volts
Lines To
600
H1, H2, H3
570
H1, H2, H3
540
H1, H2, H3
Secondary Volts
208
X1, X2, X3
X1, X4 or
X2, X4

120
1 phase

Connect
Secondary
Lines To

H1

H2

7 6 5 4 3 2 1

X4

Connect
Primary
Primary
Volts
Lines To
504
H1, H2, H3
492
H1, H2, H3
480
H1, H2, H3
468
H1, H2, H3
456
H1, H2, H3
444
H1, H2, H3
432
H1, H2, H3
Secondary Volts
240

H2

29

3 2 1

X2

InterConnect
1
2
3

X1-X4
X1-X2-X4
X1-X4

H3

7 6 5 4 3 2 1

X2

X3

InterConnect
1
2
3
4
5
6
7

Connect
Secondary
Lines To

X1, X2, X3
X1, X4 or
X2, X4

PRIMARY: 600 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC
H1

7 6 5 4 3 2 1

H2

7 6 5 4 3 2 1

H3

7 6 5 4 3 2 1

H3
X0

X3

InterConnect

120

H3

5 3 1

X2

H3

X1

PRIMARY: 480 Volts Delta
SECONDARY: 240 Volts Delta/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

X1

3 2 1

H1
X1

26

PRIMARY: 480 Volts Delta
SECONDARY: 240 Volts Delta/120 Volts
TAPS: 2, 5% BNFC

25

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

H1

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

X3

Secondary Volts
220

27

120/240
240

Secondary Volts
208

X2

X1 to X3
X2 to X4
X2 to X3
X2 to X3

120

7 6 5 4 3 2 1

321

X2

Connect
Primary
Lines To
H1, H2, H3
H1, H2, H3
H1, H2, H3

Connect
Secondary
Lines To

X3

Connect
Primary
Primary
Volts
Lines To
277
H1, H5
240
H1, H4
208
H1, H3
120
H1, H2
Secondary Volts

H3

321

X1

X0

X3

120
1 phase

H2

H1

X2

X1

Primary
Volts

Connect
Secondary
Lines To

120
1 phase

24

X0

3 2 1

X3

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

X1

Connect
Primary
Primary
Volts
Lines To
630
H1, H2, H3
615
H1, H2, H3
600
H1, H2, H3
585
H1, H2, H3
570
H1, H2, H3
555
H1, H2, H3
540
H1, H2, H3
Secondary Volts
208
120
1 phase

X2

InterConnect
1
2
3
4
5
6
7

X3

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

PRIMARY: 600 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

30

H1

H2

31

PRIMARY: 480 Volts Delta
SECONDARY: 480Y/277 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

32

PRIMARY: 480 Volts Delta
SECONDARY: 480Y/277 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC
H1

H3

H1

H2

5 3 1

5 3 1

2 4 6

5 3 1

2 4 6

5 3 1

2 4 6

7 6 5 4 3 2 1

7 6 5 4 3 2 1

X2

X1

Primary
Volts
630

Connect
Primary
Lines To
H1, H2, H3

InterConnect
1 to 2

615
600

H1, H2, H3
H1, H2, H3

585
570
555

X0

X3

Connect
Secondary
Lines To

X2

X1

2 4 6

Connect
Primary
Lines To
H1, H2, H3

InterConnect
1

2 to 3
1 to 4

492
480

H1, H2, H3
H1, H2, H3

2
3

H1, H2, H3
H1, H2, H3

3 to 4
1 to 6

468

H1, H2, H3

4

H1, H2, H3

3 to 6

456
444

H1, H2, H3
H1, H2, H3

5
6

540
H1, H2, H3
Secondary Volts

5 to 6

432
H1, H2, H3
Secondary Volts

7

208

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

120
1 phase
PRIMARY: 380 Volts Delta
SECONDARY: 208/120 Volts
TAPS: 2-2 1/2 % ANFC and BNFC

33

H2

H1

Connect
Primary
Primary
Volts
Lines To
399
H1, H2, H3
390
H1, H2, H3
380
H1, H2, H3
371
H1, H2, H3
361
H1, H2, H3
Secondary Volts
208

InterConnect
1
2
3
4
5

277
1 phase

X0

X0

266
1 phase

%
105
102.5
100
97.5
95

3 to 4
1 to 6

444

H1, H2, H3

3 to 6

432
H1, H2, H3
Secondary Volts

5 to 6

277
1 phase

3 2 1

X1

X2

X3

PRIMARY: 460 Volts Delta
SECONDARY: 460Y/266 Volts
TAPS: 2-2 1/2 % ANFC and BNFC

%

Connect Leads
to Tap No.

105
100
95

1
2
3

2 4 6

Primary
Volts
483
472
460
449
437
Secondary Volts
460

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

266
1 phase

5 3 1

PRIMARY: 460 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 1-5% ANFC and BNFC

38

5 4 3 2 1

X3

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

5 4 3 2 1

X1

X2

%
105
102.5

Connect Leads
to Tap No.
1
2

X3

100
97.5
95

3
4
5
X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

H1
H2

3 2 1

3 2 1

3 2 1

X1

X2

X3

X0

Primary
Volts
483
460
437
Secondary Volts
230
133
1 phase

%
105
100
95

H2

H3

H3
5 4 3 2 1

X0

H3

PRIMARY: 460 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 2-2 1/2 % ANFC and BNFC

2 4 6

Connect Leads
to Tap No.
1 to 2
2 to 3
1 to 4
3 to 4
4 to 5

H2

266
1 phase

Connect Leads
to Tap No.
1
2
3
X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

Primary
Volts
483
472
460
449
437
Secondary Volts
230
133
1 phase

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 139

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

H3

X2

X1

H1, H2, H3
H1, H2, H3

H3

3 2 1

H1

Primary
Volts
483
472
460
449
437
Secondary Volts
460

468
456

Connect
Secondary
Lines To

H1

H2

3 2 1

Primary
Volts

37

H2

5 3 1

2 to 3
1 to 4

35

PRIMARY: 460 Volts Delta
SECONDARY: 460Y/266 Volts
TAPS: 1-5% ANFC and BNFC

483
460
437
Secondary Volts
460
X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

H1

2 4 6

H1, H2, H3
H1, H2, H3

X0

PRIMARY: 460 Volts Delta
SECONDARY: 460Y/266 Volts
TAPS: 2-2 1/2 % ANFC and BNFC

5 3 1

492
480

X3

120
1 phase

36

InterConnect
1 to 2

5 4 3 2 1

Connect
Secondary
Lines To

2 4 6

X3

Primary
Volts
504

5 4 3 21

X2

X1

X0

5 3 1

X2

X1

H3

5 4 3 21

2 4 6

480
X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

H1

5 4 3 21

Connect
Secondary
Lines To

480

34

5 3 1

Connect
Primary
Lines To
H1, H2, H3

X3

Primary
Volts
504

H3

7 6 5 4 3 2 1

X0

X0

H2

H3

X1

%
105
102.5
100
97.5
95

5 4 3 2 1

5 4 3 2 1

X2

X3

Connect Leads
to Tap No.
1
2
3
4
5
X1, X2, X3
X1 & X0
X2 & X0
X3 & X0
139

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

39

PRIMARY: 460 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 2-2 1/2 % ANFC and BNFC
H1

40

H2

PRIMARY: 575 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 1-5% ANFC and BNFC

2 4 6

X0

5 3 1

2 4 6

5 3 1

H2

X3

X0

3 2 1

3 2 1

3 2 1

X1

X2

X3

Primary
Volts

%

Connect Leads
to Tap No.

483
472

105
102.5

1 to 2
2 to 3

Primary
Volts
604

%
105

Connect Leads
to Tap No.
1

460
449

100
97.5

1 to 4
3 to 4

575
546

100
95

2
3

437
Secondary Volts

95

4 to 5

Secondary Volts

42

230

230

X1, X2, X3

133
1 phase

X1 & X0
X2 & X0
X3 & X0

43

H2

X0

5 3 1

5 3 1

X3

%
105
102.5
100
97.5
95

1 to 2
2 to 3
1 to 4
3 to 4
4 to 5

PRIMARY: 575 Volts Delta
SECONDARY: 460Y/266 Volts
TAPS: 2-2 1/2 % ANFC and BNFC
H1

5 3 1

2 4 6

46

H2

5 3 1

2 4 6

5 3 1

Primary
Volts
604
589
575
561
546
Secondary Volts
460
266
1 phase

140

General 0412.indd 140

%
105
102.5
100
97.5
95

X2

X3

2
3

561
546

97.5
95

4
5
X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

PRIMARY: 575 Volts Delta
SECONDARY: 460Y/266 Volts
TAPS: 2-2 1/2 % ANFC and BNFC

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

5 4 3 2 1

X3

Connect Leads
to Tap No.
1 to 2
2 to 3
1 to 4
3 to 4
4 to 5
X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

H1

Connect
Primary
Primary
Volts
Lines To
218
X1, X2, X3
213
X1, X2, X3
208
X1, X2, X3
203
X1, X2, X3
198
X1, X2, X3
Secondary Volts
480
277
1 phase

X2

5 4 3 2 1

H2

InterConnect
1
2
3
4
5

5 4 3 2 1

X0

Connect Leads
to Tap No.
1
2
3

X1

2 4 6

X2

X1

102.5
100

H1

Primary
Volts
604
589
575
561
546
Secondary Volts

H2

5 4 3 2 1

X3

%
105
102.5
100
97.5
95

Connect Leads
to Tap No.
1
2
3
4
5
X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

PRIMARY: 416 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC
H1

X3
5 4 3 2 1

5 4 3 2 1

H3

Connect
Secondary
Lines To

H1, H2, H3
H1 to H0
H2 to H0
H3 to H0

5 4 3 2 1

X2

266
1 phase

47

H3

X1

460

PRIMARY: 208 Volts Delta
SECONDARY: 480Y/277 Volts
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC

H0
X0

589
575

H3

X1

H3

X3

133
1 phase

3 2 1

266
1 phase

X2

X1

230

3 2 1

%
105
100
95

5 4 3 2 1

Secondary Volts

3 2 1

Primary
Volts
604
575
546
Secondary Volts
460

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

133
1 phase

45

X0

5 4 3 2 1

%
105

2 4 6

Connect Leads
to Tap No.

H3

Connect Leads
to Tap No.
1

44

H2

H2

Primary
Volts
604

H3

X2

X1

Primary
Volts
604
589
575
561
546
Secondary Volts
230

2 4 6

X0

PRIMARY: 575 Volts Delta
SECONDARY: 460Y/266 Volts
TAPS: 1-5% ANFC and BNFC
H1

2 4 6

5 3 1

5 4 3 2 1

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

133
1 phase

PRIMARY: 575 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 2-2 1/2 % ANFC and BNFC
H1

H1

H3

2 4 6

X2

X1

PRIMARY: 575 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 2-2 1/2 % ANFC and BNFC

H3
H1

5 3 1

41

X0

X1

Connect
Primary
Primary
Volts
Lines To
437
H1, H2, H3
426
H1, H2, H3
416
H1, H2, H3
406
H1, H2, H3
395
H1, H2, H3
Secondary Volts
208
120
1 phase

H2

5 4 3 2 1

X2

InterConnect
1
2
3
4
5

H3

5 4 3 2 1

X3

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

48

PRIMARY: 208 Volts Delta
SECONDARY: 480Y/ 277 Volts
TAPS: 2, 5% BNFC

49

PRIMARY: 600 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC
H1

X2

X1

H2

5 4 3 2 1

H1

H3

H2

Primary
Volts

Connect
Primary
Lines To

InterConnect

208
198

X1, X2, X3
X1, X2, X3

1
2

187
X1, X2, X3
Secondary Volts

3

Connect
Secondary
Lines To

480

H1, H2, H3
H1 to H0
H2 to H0

277
1 phase

5 4 3 2 1

PRIMARY: 600 Volts Delta
SECONDARY: 480Y/277 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC
H1

7 6 5 4 3 2 1

7 6 5 4 3 2 1

5 4 3 2 1

X2

X1

H2

7 6 5 4 3 2 1

X0

X3

Primary
Volts

Connect
Primary
Lines To

InterConnect

630
615

H1, H2, H3
H1, H2, H3

1
2

600
585

H1, H2, H3
H1, H2, H3

3
4

570
H1, H2, H3
Secondary Volts

5

Connect
Secondary
Lines To

208

X1, X2, X3

120
1 phase

X1 to X0
X2 to X0
X3 to X0

H3 to H0

51

H1

H3

H2

7 6 5 4 3 2 1

52

H1

7 6 5 4 3 2 1

H2

7 6 5 4 3 2 1

X3

Primary
Volts
630

InterConnect
1

615
600

H1, H2, H3
H1, H2, H3

2
3

585
570

H1, H2, H3
H1, H2, H3

4
5

555

H1, H2, H3

6

540
H1, H2, H3
Secondary Volts

7

380

H3

7 6 5 4 3 2 1

53

Primary
Volts
630
615

Connect
Primary
Lines To
H1, H2, H3
H1, H2, H3

600
H1, H2, H3
585
H1, H2, H3
570
H1, H2, H3
555
H1, H2, H3
540
H1, H2, H3
Secondary Volts
480

X3

InterConnect
1
2

Connect
Secondary
Lines To

3
4
5
6
7
X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

277
1 phase

54

X0

PRIMARY: 600 Volts Delta
SECONDARY: 600Y/347 Volts
TAPS: 2, 5% BNFC
H1

X0

347
1 phase

H2

PRIMARY: 600 Volts Delta
SECONDARY: 380Y/220 Volts
TAPS: 2, 5% BNFC

3 2 1

X1

X2

X3

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

InterConnect

Connect
Secondary
Lines To

1
2
3
4
5
6
7

X0

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

PRIMARY: 600 Volts Delta
SECONDARY: 480Y/277 Volts
TAPS: 2, 5% BNFC
H1

X0

277
1 phase

H2

3 2 1

X1

X2

X3

InterConnect
1
2
3

220
1 phase

3 2 1

X1

X2

X3

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 141

3 2 1

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

PRIMARY: 600 Volts
SECONDARY: 480 Volts
TAPS: 2, 5% BNFC

H3

3 2 1

InterConnect
1
2
3

H3

3 2 1

Connect
Primary
Primary
Volts
Lines To
600
H1, H2, H3
570
H1, H2, H3
540
H1, H2, H3
Secondary Volts
380

56

3 2 1

Connect
Primary
Primary
Volts
Lines To
600
H1, H2, H3
570
H1, H2, H3
540
H1, H2, H3
Secondary Volts
480

H2

X3

347
1 phase

H3

3 2 1

InterConnect
1
2
3

Connect
Primary
Lines To

630
H1, H2, H3
615
H1, H2, H3
600
H1, H2, H3
585
H1, H2, H3
570
H1, H2, H3
555
H1, H2, H3
540
H1, H2, H3
Secondary Volts
600

55

3 2 1

Connect
Primary
Primary
Volts
Lines To
600
H1, H2, H3
570
H1, H2, H3
540
H1, H2, H3
Secondary Volts
600

Primary
Volts

X2

X1

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

220
1 phase

PRIMARY: 600 Volts Delta
SECONDARY: 600Y/ 347 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

H3

7 6 5 4 3 2 1

X2

X1

7 6 5 4 3 2 1

X2

X1

Connect
Primary
Lines To
H1, H2, H3

H1
X0

H3

3 21

X0

H0

PRIMARY: 600 Volts Delta
SECONDARY: 380Y/220 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

X3

32 1

32 1

50

H1 H4 H7 X1

H2 H5 H8 X2

H3 H6 H9 X3

X0
H0

Connect
Connect
Primary
Alt
Primary
Inter- Secondary
Volts Rating Lines To Connect Lines To
600
480 H1, H2, H3
570
456 H4, H5, H6
540
432 H7, H8, H9
Secondary Volts
480
380
X1, X2, X3
X1 to X0
277
220
X2 to X0
1 phase 1 phase
X3 to X0
141

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL
PRIMARY: 600 Volts
SECONDARY: 480 Volts
TAPS: 2, 5% BNFC

57

PRIMARY: 208 Volts
SECONDARY: 120/240 Volts
TAPS: 2, 5% BNFC

58

H1
H1

H2

H3

1 2 3 X1

1 2 3 X2

1 2 3 X3

X4

Primary Alt
Volts Rating

Connect
Inter- Secondary
Connect Lines To

600
570

480
456

H1, H2, H3
H1, H2, H3

1
2

540

432

H1, H2, H3

3

Secondary Volts
480
380

X1 to X0
X2 to X0
X3 to X0

X2

X3

Connect
Primary
Lines To
H1 & H2

InterConnect
3 to 4

198
187

H1 & H2
H1 & H2

2 to 5
1 to 6

X0

3 2 1

X3

%
100

Connect Leads
to Tap No.
1

95
90

2
3

198
187
Secondary Volts
208

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

120
1 phase

PRIMARY: 120/208/240/277 Volts
SECONDARY: 120/240 Volts
H4
H2 H3

X4

X2

Primary
Volts

Connect
Primary
Lines To

120

H1 & H8

208
H1 & H8
240
H1 & H8
277
H1 & H8
Secondary Volts
240
120/240
120
142

General 0412.indd 142

X3

InterConnect
H1 to H6
H3 to H8
H2 to H7
H3 to H6
H4 to H5
X2 to X3
X2 to X3
X1 to X3
X2 to X4

Primary
Volts
242

%
105

Connect Leads
to Tap No.
1

236

102.5

2

230
224

100
97.5

3
4

95

5

219
Secondary Volts

120

X1 to X3
X2 to X4

X1-X4

230

X1, X2, X3

133
1 phase

X1 & X0
X2 & X0
X3 & X0

PRIMARY: 208 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2-2 1/2 % ANFC and 2-2 1/2 % BNFC

61

X0

H2

5 4 3 2 1

62

H3

5 4 3 2 1

X1

Connect
Secondary
Lines To

X1 & X4
X1, X3, X4
X1 & X4

X2

X1

Primary
Volts
218
213
208
203
198
Secondary Volts

PRIMARY: 230 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 1-5% ANFC and 1-5% BNFC

Connect Leads
to Tap No.

105
102.5
100
97.5
95

1
2
3
4
5

64

X0

H5

H7

X3

Primary
Volts

Connect
Primary
Lines To

190

H1& H7

208

H1 & H8

220

H1 & H9

240

H1& H10

380
H1 & H7
416
H1 & H8
440
H1 & H9
480
H1 & H10
Secondary Volts
240
120/240
120

3 2 1

X1

X2

X3

X2

H10
H9

X2 to X3
X2 to X3
X1 to X3
X2 to X4

%
105
100
95

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

PRIMARY: 190/200/208/220 x
380/400/416/440 Volts
SECONDARY: 110/ 220 Volts
H3

H1
H2

X1

InterConnect
H1 to H6
H2 to H7
H1 to H6
H3 to H8
H1 to H6
H4 to H9
H1 to H6
H5 to H10
H2 to H6
H3 to H6
H4 to H6
H5 to H6

Connect Leads
to Tap No.
1
2
3

133
1 phase

65

H8

H6

H4

3 2 1

230

PRIMARY: 190/208/220/240 x
380/416/440/480 Volts
SECONDARY: 120/ 240 Volts
H3

H3

3 2 1

Primary
Volts
241
230
218
Secondary Volts

X1, X2, X3
X1 & X0
X2 & X0
X3 & X0

120
1 phase

H2

X3

%

208

X4

H5
H8
H6 H7

X3

X1-X4

H2

H1

X2

X1

X1-X2-X4

H1

63

5 4 3 2 1

X2 to X3

H3

X2

Primary
Volts
208

X0

Connect
Secondary
Lines To

H1

3 2 1

X1

5 4 3 2 1

X2 to X3

5 4 3 2 1

H2

H3

120/240

H1

3 2 1

H2

Secondary Volts
240

PRIMARY: 208 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2-5% BNFC
H1

H1

X1

Primary
Volts
208

X1, X2, X3

277
220
1 phase 1 phase

60

H2

4 5 6

1 2 3

PRIMARY: 230 Volts Delta
SECONDARY: 230Y/133 Volts
TAPS: 2-2 1/2 % ANFC and 2-2 1/2 % BNFC

5 4 3 2 1

X0
H0

Connect
Primary
Lines To

59

Connect
Secondary
Lines To

X1 - X4
X1- X2 - X4
X1 - X4

X4

H5

H7

X3

Primary
Volts

Connect
Primary
Lines To

190

H1 & H7

200

H1 & H8

208

H1 & H9

220

H1 & H10

380
H1 & H7
400
H1 & H8
415
H1 & H9
440
H1 & H10
Secondary Volts
220
110/220
110

H8

H6

H4

X2

H10
H9

X1

InterConnect
H1 to H6
H2 to H7
H1 to H6
H3 to H8
H1 to H6
H4 to H9
H1 to H6
H5 to H10
H2 to H6
H3 to H6
H4 to H6
H5 to H6
X2 to X3
X2 to X3
X1 to X3
X2 to X4

Connect
Secondary
Lines To

X1-X4
X1-X2-X4
X1-X4

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

PRIMARY: 416 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 5% BNFC

66

H2

H1

PRIMARY: 480 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2- 2 1/2 % ANFC, 4, 2 1/2 % BNFC

67
H3

H1

H2

PRIMARY: 480 Volts Delta
SECONDARY: 240 Volts Delta/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

68
H3

H1

7 6 5 4 3 2 1

X0

X1

437
416

Connect
Secondary
Lines To

InterConnect

H1, H2, H3
H1, H2, H3

1
2

395
H1, H2, H3
Secondary Volts

3

208

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

120
1 phase

PRIMARY: 600 Volts Delta
SECONDARY: 240 Delta/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

69

H1

7 6 5 4 3 2 1

7 6 5 4 3 2 1

X4

H3

X3

Connect Leads
to Tap No.
1
2
3
4
5
6
7

%
105
102.5
100
97.5
95
92.5
90

X1, X2, X3
X1, X4, or
X2, X4

120

X0

H1

H2

7 6 5 4 3 2 1

X2

X1

H3

Primary
Volts
399
390
380
371
361
352
342
Secondary Volts
208
120
1 phase

%
105
102.5
100
97.5
95
92.5
90

7 6 5 4 3 2 1

X2

InterConnect

1
2

504
492

H1, H2, H3
H1, H2, H3

1
2

H1, H2, H3
H1, H2, H3

3
4

480

H1, H2, H3

3

456
444

H1, H2, H3
H1, H2, H3

5
6

468
456

H1, H2, H3
H1, H2, H3

4
5

432

H1, H2, H3

7

444
432

H1, H2, H3
H1, H2, H3

6
7

504
492

H1, H2, H3
H1, H2, H3

480
468

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

120
1 phase
PRIMARY: 240 Volts Delta
SECONDARY: 480Y/277 Volts
TAPS: 2, 5% BNFC

70

X1

X2

321

Primary
Volts
240
228
216
Secondary Volts
480

X1

%
100
95

Connect Leads
to Tap No.
1
2

90

3
H1, H2, H3
H1 to H0
H2 to H0
H3 to H0

PRIMARY: 440 Volts Delta
SECONDARY: 220Y/127 Volts
TAPS: 2, 5% ANFC & BNFC

54 3 21

H0

H1

Connect
Primary
Primary
Volts
Lines To
252
X1, X2, X3
246
X1, X2, X3
240
X1, X2, X3
234
X1, X2, X3
228
X1, X2, X3
Secondary Volts
480
277
1 phase

7 6 5 4 3 2 1

H2

X1, X4, or
X2, X4

X2
54 321

X3
54 321

H3

277
1 phase

73

Connect
Secondary
Lines To

PRIMARY: 240 Volts Delta
SECONDARY: 480Y/277 Volts
TAPS: 2, 2 1/2 % ANFC & BNFC

321

H2

X3

X1, X2, X3

120

X3

321

H1

H0

Secondary Volts
240

71

H2

InterConnect
1
2
3
4
5

H3

Connect
Secondary
Lines To

H1, H2, H3
H1 to H0
H2 to H0
H3 to H0

H3

5 4 3 21

5 4 3 21

X2

X3

X3

Connect Leads
to Tap No.
1
2
3
4
5
6
7
X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

X0

X1

Primary
Volts
484
462
440
418
396
Secondary Volts
220
127
1 phase

%
110
105
100
95
90

Connect Leads
to Tap No.
1
2
3
4
5
X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 143

X4

X1

Connect
Primary
Lines To

InterConnect

5 4 3 21
X2

X1

7 6 5 4 3 2 1

Primary
Volts

Connect
Primary
Lines To

H1

X0

7 6 5 4 3 2 1

X3

Primary
Volts

PRIMARY: 380 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC

7 6 5 4 3 2 1

7 6 5 4 3 2 1

7 6 5 4 3 2 1

X2

Secondary Volts
240

72

7 6 5 4 3 2 1

Secondary Volts
208

H2

X1

Primary
Volts
630
615
600
585
570
555
540

H3

X3

X2

Connect
Primary
Lines To

Primary
Volts

H2

3 21

32 1

32 1

143

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
WIRING
DIAGRAMS
DIAGRAMS

GENERAL

74

PRIMARY: 190/200/210/220/
230/240 Volts Delta
SECONDARY: 400Y/231 Volts
X1
6 5 4 3 2 1

PRIMARY: 190/200/210/220/
230/240 Volts Delta
SECONDARY: 400Y/231 Volts

75

X2

H2

H1
6 5 4 3 21

H0

H2

H1

Primary
Volts
240

InterConnect
1

230
220

X1, X2, X3
X1, X2, X3

2
3

210
200

X1, X2, X3
X1, X2, X3

4
5

190
X1, X2, X3
Secondary Volts

6

Connect
Secondary
Lines To

400

H1, H2, H3

231
1 phase

H1 to H0
H2 to H0
H3 to H0

7654 321

H2
7654 321

X4

X1

Primary
Volts
420
410
400
390
380

Connect
Primary
Lines To
H1, H2, H3
H1, H2, H3
H1, H2, H3
H1, H2, H3
H1, H2, H3

370
H1, H2, H3
360
H1, H2, H3
Secondary Volts
240

H3

3 21

X0

X1

Connect
Primary
Primary
Volts
Lines To
504
H1, H2, H3
480
H1, H2, H3
456
H1, H2, H3
Secondary Volts
208
120
1 phase

144

General 0412.indd 144

X2

X3

X2

Primary
Volts

Connect
Primary
Lines To

InterConnect

240

H1, H2, H3

1

230
220

H1, H2, H3
H1, H2, H3

2
3

210
200

H1, H2, H3
H1, H2, H3

4
5

190
H1, H2, H3
Secondary Volts

6

321

H3

321

321

InterConnect
1
2
3
4
5

X1, X2, X3
X1 to X4 or
X2 to X4

H2
3 21

X2

InterConnect
1
2
3

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

H1

H2

H3

X1

X2

X3

X3

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

380
360

H1, H2, H3
H1, H2, H3

2
3
X1, X2, X3

79

PRIMARY: 277/480 Volts
SECONDARY: 208/277 Volts
TAPS: NONE
H6
H3

H5

H4

InterConnect

H2

H1

X1

Connect
Secondary
Lines To

Secondary Volts
208
277

82

X4

X1

Connect
Secondary
Lines To

InterConnect
H2 to H4
H3 to H4
X2 to X4
X3 to X4

X1 - X5
X1 - X6

PRIMARY: 380 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2-2 1/2 % ANFC and 2-2 1/2 % BNFC

H3

H1

5 4 3 2 1

X0

Connect
Primary
Primary
Volts
Lines To
504
H1, H2, H3
492
H1, H2, H3
480
H1, H2, H3
468
H1, H2, H3
456
H1, H2, H3
Secondary Volts
208
120
1 phase

X3

Connect
Primary
Lines To
H1 - H5
H1 - H6

Primary
Volts
277
480

54 321

54 321

X2

X2

X6

PRIMARY: 480 Volts Delta
SECONDARY: 208Y/ 120 Volts
TAPS: 2, 2 1/2 % ANFC, 2, 2 1/2 % BNFC

81

Connect
Secondary
Lines To

X1 to X4 or
X2 to X4

H2

X0

3 21

InterConnect
1

H1

X1 to X2
X1 to X3

54 3 21

H3

Connect
Primary
Lines To
H1, H2, H3

X5

Connect
Primary
Primary
Volts
Lines To
277
H1 & H2
480
H1 & H3
Secondary Volts

X3

120

208
277

6
7

X2

Primary
Volts
400

PRIMARY: 277/480 Volts
SECONDARY: 208/277 Volts
TAPS: NONE

X3

Connect
Secondary
Lines To

Connect
Secondary
Lines To

X4

X1

Secondary Volts
240

400

PRIMARY: 480 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 1-5% ANFC & 1-5% BNFC
H1

6 5 4 3 21

X1

X0

78

7654 321

120

80

6 5 4 3 21

231
1 phase

PRIMARY: 400 Volts Delta
SECONDARY: 240 Delta/120 Volts
TAPS: 2, 2 1/2 % ANFC, 4, 2 1/2 % BNFC
H1

H2

H1

H3

H3

Connect
Primary
Lines To
X1, X2, X3

77

PRIMARY: 400 Volts Delta
SECONDARY: 240 Volts Delta/120 Volts
TAPS: 2, 5% BNFC

X3
6 5 4 3 2 1

6 5 4 3 2 1

76

H2

5 4 3 2 1

H3

5 4 3 2 1

X2

X1

X3

X3

InterConnect
1
2
3
4
5

Connect
Secondary
Lines To

X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

Primary
Volts
399
390
380
371
361
Secondary Volts
208
120
1 phase

%
105
102.5
100
97.5
95

Connect Leads
to Tap No.
1
2
3
4
5
X1, X2, X3
X1 to X0
X2 to X0
X3 to X0

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

GENERAL

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
ACCESSORIES
DIAGRAMS

Wall Mounting Brackets

Thermal Switch Kits
Acme Thermal Switch Kits are designed for use with single and three
phase drive isolation and distribution transformers. Thermal switch kits
are available for one or three sensor systems.
Thermal sensors can be field or factory installed in the transformer
winding ducts to detect abnormal temperatures. The thermal sensors
are a normally closed contact that opens at 200°C ± 10°C and has a
current capacity of 5 amps @ 120V or 2.5 amps @ 240V. This contact
can activate any number of different types of alarms or mechanisms
that could warn of a potential failure.

Catalog Number: PL-79900
kVA

Required on:
Ventilated Units:
1Ø, 37.5 and 50 kVA
3Ø, 30, 45 and 75 kVA
Catalog Number: PL-79912

Mounting Position

Illustration

27.0 –
220.0

Bottom of
the case

Figure 1

275.0 –
750

Top Flange of the
Core Bracket

Figure 2

Encapsulated Units:
3Ø dit., 11 kVA — 20 kVA
3Ø std. distribution — 15 kVA
Catalog Number: PL-79911
Wall mounting brackets are not
required on:
1Ø units — 25 kVA and below
3Ø units — 9 kVA and below

COIL 1

COIL 3

COIL 2

Standard Taps
The catalog number suffix provides tap
information as outlined in chart below:

CORE
BOTTOM OF CASE

If the catalog number has no suffix,
there are no taps available.

Figure 1

EXAMPLE: T-2-53019-3S
The suffix 3S indicates the unit has two 2.5%
(+) ANFC taps and four 2.5% (–) BNFC taps.
Suffix

Tap Arrangement

– 1S

Two 5% (–) BNFC Taps

– 2S

One 5% (+) ANFC Tap
and
One 5% (–) BNFC Tap

– 3S

Two 2-1/2% (+) ANFC Taps
and
Four 2-1/2%(–) BNFC Taps

– 4S

Two 2-1/2% (+) ANFC Taps
and
Two 2-1/2% (–) BNFC Taps

– 5S

Two 5% (+) ANFC Taps
and
Two 5% (–) BNFC Taps

TERMINAL BLOCK

THERMAL SWITCH
.5H
(1.3 cm)
H
COIL 1

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 145

.625 (1.6 cm) H DIA.
EPOXY-RING

EPOXY LAYER

COIL 2

COIL 3

CORE

Figure 2

145

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
ACCESSORIES
DIAGRAMS

GENERAL

Lug Kits

Weather Shields

Acme’s mechanical transformer lug kits contain all of the hardware
necessary to provide satisfactory transformer terminations. Lug kits are
available in sizes from 27 kVA to 660 kVA.
Acme lugs are of the dual rated single pole solderless type, made
from high strength aluminum alloy. To provide the best in low contact
resistance, all lugs in these kits are plated.
Kit Contains
Transformer
kVA Size

Wire Range
Al or Cu

Qty

Nuts & Bolts

Lug 1

37 1/2 1-phase
27 - 45 3-phase

2 -14
250 mcm - 6

8
4

1/4 - 20 X 3/4

Lug 2

50 - 75 1-phase
51 - 118 3-phase

250 mcm - 6

12

Lug 3

100 -167 1-phase
145 - 300 3-phase

250 mcm - 6
600 mcm - 2

3
22

1/4

Lug 4

440 - 660 3-phase

600 mcm - 2

29

3/8

Catalog No.

8

1/4

- 20 x 3/4
1/4 - 20 x 1 3/4
- 20 x 3/4
- 16 x 2

3/8

- 16 x 2

Qty

8
8

Catalog No.

Approx. Ship Weight
Lbs. (Kg.)

WSA1

6 (2.7)

WSA2

7 (3.2)

WSA3

8 (3.6)

WSA4

8 (3.6)

WSA5

10 (4.5)

WSA6

10 (4.5)

WSA8

7 (3.2)

WSB3

30 (13.6)

WSB4

32 (14.5)

3
16
8

Spare Parts
TOP COVER
CATALOG NO.

FRONT/REAR PANEL
APPROX. SHIP WEIGHT
Lbs. (Kg.)

CATALOG NO.

APPROX. SHIP WEIGHT
Lbs. (Kg.)

SA1701319

14 (6.4)

SA1701321

13 (5.9)

SA2701319

16 (7.3)

SA2701321

15 (6.8)

SA3701319

20 (9.1)

SA3701321

21 (9.5)

SA4701319

34 (15.4)

SA4701321

35 (15.9)

SA6701319

17 (7.7)

SA7701321

16 (7.3)

SIDE PANEL
CATALOG NO.

APPROX. SHIP WEIGHT
Lbs. (Kg.)

SA1701320

11 (5.0)

SA2701320

13 (5.9)

SA3701320

19 (8.6)

SA4701320

34 (15.4)

146

General 0412.indd 146

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

GENERAL

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
SPECIFICATIONS
DIAGRAMS

Specification Guide for
Dry Type Distribution Transformers
1.0 Dry Type Transformers:
1.0.0 The following information should be utilized only by
trained technical personnel. If you need assistance,
please contact Acme’s Technical Services Department
at 800-334-5214.
1.0.1 Provide dry type, enclosed and ventilated transformers
as indicated herein. Transformers shall be Acme or
approved equal.
1.0.2 Transformers shall be designed, constructed and rated
in accordance with UL, CSA, NEMA, ANSI, IEEE, and
OSHA standards.
1.0.3 Transformers rated 27 kVA and larger, single and three
phase shall be the ventilated type, incorporating a 220
degree C insulation system and designed not to
exceed 150 degree C temperature rise above a 40
degree C ambient under full load conditions. Taps are
to be provided on the primary side of the transformer
as follows:
(a) 2 - 2.5% above normal full capacity.
4 - 2.5% below normal full capacity.
-or(b) 2 - 2.5% above normal full capacity.
2 - 2.5% below normal full capacity.
Alternate 1: 115 degree C rise transformers shall
incorporate a 220 degree C insulation system and
be designed not to exceed 115 degree C temperature
rise above a 40 degree C ambient under full load
conditions. In addition, the transformer shall have
the ability to carry a continuous 15% overload without
exceeding a 150 degree C rise above ambient.
Alternate 2: 80 degree C rise Transformers shall
incorporate a 220 degree C insulation system and
be designed not to exceed 80 degree C temperature
rise above a 40 degree C ambient under full load
conditions. In addition, the transformer shall have the
ability to carry a continuous 30% overload without
exceeding a 150 degree C rise above ambient.
1.0.4 Transformer enclosure finish must be ASA 61 gray
powder polyurethane paint. Transformer enclosure
temperature shall not exceed 50 degrees C plus
the ambient under any condition of loading at any
specified temperature rise at or below 150 degrees C.
1.0.5 Transformer enclosure shall be UL/NEMA Type 2 and
UL 3R Listed with the addition of a weather shield and
shall be so marked on the transformer.
1.0.6 Transformer shall incorporate an electrostatic shield
for the attenuation of voltage spikes, line noise, and
transients.

1.0.7 Single phase transformers and three phase
transformers terminate in copper or aluminum bus bar.
1.0.8 Transformer coils designed and manufactured for
increased insulation life, cooler operation, and lower
losses.
1.0.9 Transformers must operate at audible sound levels
below NEMA Standard ST-20. Sound levels will not
exceed the following:
30 - 50 kVA
45 db
51 - 150 kVA
50 db
151 - 300 kVA
55 db
301 - 500 kVA
60 db
501 - 750 kVA
65 db
Transformers must incorporate vibration isolation pads
in their construction located between the transformer
core and coil assembly and the transformer case.
External vibration isolation pads will not be used as
they tend to increase audible noise. Transformers shall
be floor mounted on a concrete pad. All connections
to the transformer will be made by means of flexible
metallic conduit.
1.0.10 Transformer enclosure shall be grounded per the
National Electric Code.
1.0.11 Transformers shall be dry-type 600 volt class, kVA
rating as indicated. Contractor to provide all necessary
lugs for all transformers.
1.0.12 Complete shop drawings must be submitted for
approval on all dry type transformers.
1.0.13 Typical performance data must be submitted for
approval on all transformers. Factory tests must be
made in accordance with the latest revisions of ANSI
Test Code C57.12.91 for Dry Type Transformers.
Performance data provided must contain but not be
limited to:
(a) No load losses.
(b) Full load losses.
(c) Polarity and phase rotation.
(d) Impedance at reference temperature.
(e) Efficiencies at 25, 50, 75, and 100% load.
(f) Regulation at 100% and 80% power factor.
(g) Audible sound level.
(h) Dimensions and weight.
(i) Applied potential test.
(j) Induced potential test.
(k) Excitation current.
(l) IR, IX, and IZ percentages.
(m) Reference and ambient temperature.
1.0.14 Warranty: Transformers must be warranted against
defects in materials, workmanship, and performance
for ten years from date of manufacture.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 147

147

6/13/12 12:24 PM

GENERAL

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
SPECIFICATIONS
DIAGRAMS

Specification Guide for Single & Three Phase
Encapsulated Transformers
1.0 Dry Type Transformers:
1.0.0 The following information should be utilized only by
trained technical personnel. If you need assistance,
please contact Acme’s Technical Services Department
at 800-334-5214.
1.0.1 Provide dry type, enclosed, epoxy encapsulated
transformers as indicated and specified herein.
Transformers must be Acme or approved equal.
1.0.2 Transformers must be designed, constructed and
rated in accordance with UL, CSA, NEMA, ANSI, IEEE,
and OSHA standards.
1.0.3 Transformers 3.0 - 75 kVA shall be compound filled,
incorporating a 180 degree C insulation system and
designed not to exceed a 115 degree C temperature
rise above a 40 degree C ambient under full load
conditions. Taps are to be provided on the primary
side of the transformer. The catalog number suffix will
provide the tap information outlined below:
SUFFIX

TAP ARRANGEMENT

- 1S

2-5% BNFC

- 2S

1-5% ANFC & 1-5% BNFC

- 3S

2- 2.5% ANFC & 4-2.5% BNFC

- 4S

2- 2.5% ANFC & 2-2.5% BNFC

- 5S

2- 5% ANFC & 2-5% BNFC

1.0.4 Transformer enclosure finish must be ASA 61 gray
powder polyurethane paint.
1.0.5 Transformer enclosure temperature shall not exceed
65 degrees C plus the ambient.
1.0.6 Transformer enclosure shall be UL/NEMA Type 3R and
so marked on the transformer.
1.0.7 Transformer shall incorporate an electrostatic shield
for the attenuation of voltage spikes, line noise and
transients.
1.0.8 Transformer coils are typically wound with aluminum or
copper for increased insulation life, cooler operation
and lower losses.

148

General 0412.indd 148

1.0.9 All primary tap connections and both primary and
secondary phase conductors must be either copper
wire or copper bus bar.
1.0.10 Transformers must operate at audible sound levels
below ANSI/NEMA Standard ST-20. Sound levels will
not exceed the following:
Up to 9 kVA
40 db
10 - 50 kVA
45 db
51 - 150 kVA
50 db
1.0.11 Transformer enclosures shall be grounded per the
National Electric Code.
1.0.12 Complete shop drawings must be submitted for
approval on all Dry Type Transformers.
1.0.13 Typical performance data must be submitted for
approval on all transformers. Factory tests must be
made in accordance with the latest revisions of ANSI
Test Code C57.12.91 for Dry Type Transformers.
Performance data must contain but not be limited to:
(a) No load losses.
(b) Full load losses.
(c) Polarity and phase rotation.
(d) Impedance at reference temperature.
(e) Efficiencies at 25, 75, and 100% load.
(f) Regulation at 100% and 80% power factor.
(g) Audible sound level.
(h) Insulation class and rated temperature rise.
(i) Dimensions and weight.
(j) Applied potential test.
(k) Induced potential test.
(l) Excitation current.
(m) IR, IX, and IZ percentages.
(n) Reference and ambient temperature.
1.0.14 Warranty: Transformer must be warranted against
defects in materials, workmanship and performance
for ten years from date of manufacture.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

GENERAL

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
SPECIFICATIONS
DIAGRAMS

Specification Guide for Non-Linear Load
Isolation® Transformers
Enclosed, ventilated transformers must incorporate
vibration dampening pads in their construction,
located between the transformer core and coil
assembly and the transformer case. External vibration
dampening pads will not be used on enclosed,
ventilated designs as they tend to increase audible
noise. Transformers 15 kVA and larger shall be floor
mounted on a concrete pad. All connections to the
transformer will be made by means of flexible metallic
conduit.

1.0 Dry Type Transformers:
1.0.0

The following information should be utilized only by
trained technical personnel. If you need assistance,
please contact Acme’s Technical Services
Department at 800-334-5214.

1.0.1

Provide dry type, enclosed, and ventilated
transformers as indicated and specified herein.
Transformers must be Acme or approved equal.
Transformers must be UL listed for non-sinusoidal
current loads of a specified K Factor (UL Standard
1561), CSA certified and labeled as such.

1.0.2

For sizes 15 kVA and larger, low voltage dry
transformers will be ventilated type, incorporating a
220 degree C insulation system and designed not to
exceed 150 degree C temperature rise above a 40
degree C ambient under full load conditions. Taps will
be provided on the primary side of the transformer.
There will be 2, 2.5% taps above normal full capacity
and 4, 2.5% taps below normal full capacity.
Alternate 1: 115 degree C rise Transformers shall
incorporate a 220 degree C insulation system and
be designed not to exceed 80 degree C temperature
rise above a 40 degree C ambient under full load
conditions. In addition, the transformer shall have the
ability to carry a continuous 15% overload without
exceeding a 150 degree C rise above ambient.
Alternate 2: 80 degree C rise Transformers shall
incorporate a 220 degree C insulation system and
be designed not to exceed 80 degree C temperature
rise above a 40 degree C ambient under full load
conditions. In addition, the transformer shall have the
ability to carry a continuous 30% overload without
exceeding a 150 degree C rise above ambient.

1.0.3

Transformers shall incorporate an electrostatic shield
for the attenuation of voltage spikes, line noise, and
transients.

1.0.4

Transformers must be designed to handle nonlinear loads and the adverse effects of harmonics.
Transformer coils will be wound with foil to minimize
the heating effects caused by harmonic currents.

1.0.5

Transformers must be able to power non-linear loads
with a K-Factor as high as 20.

1.0.6

Transformers must operate at audible sound levels
below NEMA ST-20. Sound levels will not exceed the
following:
30 - 50 kVA
45 db*
51 - 150 kVA
50 db*
151 - 300 kVA
55 db*
301 - 500 kVA
60 db*

1.0.7

Transformers shall incorporate a neutral conductor
sized at 2 times rated phase current. Transformer
cases shall be grounded per the National Electric
Code.

1.0.8

Transformers shall be 60 Hz, 480 or 600 volts delta
primary, 208Y/120 volt secondary. kVA rating as
indicated. Contractor to provide all necessary lugs for
all transformers. Transformer enclosures shall be
Type 2 and UL-3R listed with the addition of a weather
shield.

1.0.9

Complete shop drawings must be submitted for
approval on all dry type transformers.

1.0.10 Typical performance data must be submitted for
approval on all transformers. Factory tests must be
made in accordance with the latest revisions of ANSI
Test Code C57.12.91 for Dry Type Transformers.
Performance data must contain but not be limited to:
(a) No load losses.
(b) Full load losses.
(c) Polarity and phase rotation.
(d) Impedance at reference temperature.
(e) Efficiencies at 25, 75, 50 and 100% load.
(f) Regulation at 100% and 80% power factor.
(g) Audible sound level.
(h) Insulation class and rated temperature rise.
(i) Dimensions and weight.
(j) Applied potential test.
(k) Induced potential test.
(l) Excitation current.
(m) IR, IX, and IZ percentages.
(n) Reference and ambient temperature.
1.0.11 Warranty: Transformers must be warranted against
defects in materials, workmanship and performance
for ten years from date of manufacture.

* Sound levels are based on transformers with a K-Factor of
4 and a temperature rise of 150 degrees centigrade.
ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 149

149

6/13/12 12:24 PM

GENERAL

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
SPECIFICATIONS
DIAGRAMS

Specification Guide for Drive Isolation Transformers
1.0 Dry Type Transformers:
1.0.0

The following information should be utilized only by
trained technical personnel. If you need assistance,
please contact Acme’s Technical Services Department at
800-334-5214.

1.0.1

Provide dry type, enclosed, epoxy encapsulated
transformers as indicated and specified herein.
Transformers shall be designed for use with AC/DC
Drive applications and labeled as such.

1.0.2

Transformers shall be designed, constructed and rated
in accordance with UL, CSA, NEMA, ANSI, IEEE, and
OSHA standards.

1.0.3 Transformers 7.5 - 20 kVA shall be three phase,
compound filled, incorporating a 180 degree C insulation system and designed not to exceed a 115 degree C
temperature rise above a 40 degree C ambient under full
load conditions. Taps are provided on the primary side of
the transformer as follows:
(a) 1-5% above normal full capacity.
(b) 1-5% below normal full capacity.
Transformers 27 - 750 kVA shall be the ventilated type,
incorporating a 220 degree C insulation system and
designed not to exceed a 150 degree C temperature rise
above a 40 degree C maximum ambient under full load
conditions. Taps are to be provided on the primary side
of the transformer as follows:
(a) 2 - 2.5% above normal full capacity.
(b) 2 - 2.5% below normal full capacity.
Alternate 1: 115 degree C rise transformers shall
incorporate a 220 degree C insulation system and be
designed not to exceed a 115 degree C temperature rise
above a 40 degree C maximum ambient under full load
conditions.
Alternate 2: 80 degree C rise transformers shall
incorporate a 220 degree C insulation system and be
designed not to exceed 80 degree C temperature rise
above a 40 degree C maximum ambient under full
load conditions.
1.0.4

Transformer enclosure finish must be ASA 61 gray powder
polyurethane paint. Ventilated transformer enclosure
temperature shall not exceed 50 degrees C plus the ambient.
Compound filled transformer enclosure temperature shall not
exceed 65 degrees C, plus the ambient.

1.0.5

Compound filled transformer enclosure shall be UL/
NEMA Type 3R and so marked on the transformer
(7.5 - 20 kVA). No weather shield is required. Ventilated
transformer enclosure shall be UL/NEMA Type 2 and
UL-3R listed with the addition of a weather shield and
shall be so marked on the transformer (27 - 750 kVA).

1.0.6

Transformers shall incorporate an electrostatic shield for
the attenuation of voltage spikes, line noise, and transients.

1.0.7

Transformers up to 220 kVA shall terminate in copper bus
bar or copper wire.

1.0.8

Transformer coils must be wound with aluminum strip
conductors for increased insulation life, cooler operation
and lower losses.

150

General 0412.indd 150

1.0.9 Transformers must operate at audible sound levels
below NEMA standard ST-20. Sound levels will not
exceed the following:
up to 9kVA
40 db
10 - 50 kVA
45 db
51 - 150 kVA
50 db
151 - 300 kVA
55 db
301 - 500 kVA
60 db
501 - 750 kVA
65 db
Transformers must incorporate vibration isolation pads
in their construction located between the transformer
core and coil assembly and the transformer case, (27 750 kVA).
External vibration pads should not be used as they
tend to increase audible noise. Transformers shall be
floor mounted on a concrete pad. All connections to the
transformer will be made by means of flexible metallic
conduit.
1.0.10 Transformer enclosure shall be grounded per the
National Electrical Code.
1.0.11 Transformer voltages shall be as follows:
(a)
460 Delta - 460Y/266
(b)
460 Delta - 230Y/133
(c)
575 Delta - 230Y/133
(d)
575 Delta - 460Y/266
(e)
230 Delta-230Y/133
(f)
Other
Transformer shall be 60 Hz. kVA rating as indicated.
Contractor to provide all necessary lugs for all transformers.
1.0.12 Complete shop drawings must be submitted for
approval on all dry type transformers.
1.0.13 Typical performance data must be submitted for
approval on all transformers. Factory tests must be
made in accordance with the latest revisions of ANSI
Test Code C57.12.91 for Dry Type Transformers.
Performance data provided must contain, but not be
limited to:
(a) No load losses.
(b) Full load losses.
(c) Polarity and phase rotation.
(d) Impedance at reference temperature.
(e) Efficiencies at 25, 75, 50 and 100% load.
(f)
Regulation at 100% and 80% power factor.
(g) Audible sound level.
(h) Insulation class and rated temperature rise.
(i)
Dimensions and weight.
(j)
Applied potential test.
(k) Induced potential test.
(l)
Excitation current.
(m) IR, IX, and IZ percentages.
(n) Reference and ambient temperature.
1.0.14 Warranty: Transformers must be warranted against
defects in materials, workmanship and performance for
ten years from date of manufacture.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

6/13/12 12:24 PM

™
ACME® TRANSFORMER
ELECTRICAL
CONNECTION
INDUSTRY
DIAGRAMS
STANDARDS

GENERAL

Transformer Industry Standards
Underwriters’ Laboratories, Inc. is an independent not for profit
organization which tests products for safety.

CSA Standards C22.2-47 and C22.2-66 and carry the CSA
Certification Label.

Acme’s transformers are designed and manufactured to comply
with UL Standard 506, 1561, 1012, or 1062 and carry the
applicable UL Listing Label. Because of the continuous product
evolutions at Acme, it is best that you contact the factory for
the current file and guide numbers associated with the listings.

All of Acme’s transformers are manufactured to meet National
Electrical Code requirements.
Other Agencies and Standards:
National Electrical Manufacturers Association (NEMA)
ST-20 1992 (R1978)
American National Standards Institute (ANSI)
OSHA
IEEE

The Canadian Standards Association is the Canadian
counterpart to Underwriters’ Laboratories. Acme’s
transformers are also constructed and rated to comply with

OCP LOCATION
SUPPLY
VOLTAGE

Listed

A

LOAD

B

Certified

How to overcurrent protect (OCP) 600 volt class transformers and associated wiring
. . . in accordance with the ‘99 National Electric Code (Articles 450-3(b) and 240-3 (i))
Case

Type of
Supply
Voltage

Phase

Number of
Wires on
Secondary

1

Main

1Ø

2

Main

3

4

Primary

Secondary

Protection
Required

OCP
Location

Current
(AMPS)

OCP
(% of rating)

Current
(AMPS)

OCP
(% of rating)

2

Primary
Only

A

>9
< 9, > 2
<2

125 ①
167 max.
300 max.

Not Required

1Ø
3Ø

More than 2
Not Applicable

Primary
&
Secondary ②

A&B

≥9
< 9, ≥2
<2

125 ①
167 max.
300 max.

≥9
<9

Feeder
Circuit
with OCP

1Ø

2

None
on
Either

—

Not Required

Feeder
Circuit
with OCP

1Ø
3Ø

More than 2
Not Applicable

Secondary
Only ②

B

Not Required

125①
167 max.
Not Required

9
<9

125 ①
167 max.

Acme Transformer ™ Products vs. U/L Insulation Systems & U/L Standards
®

U/L
Standard

U/L
Product
Category

U/L
File
Number

U/L
Listed
Control #

U/L
Insulation
Number

Insulation
System
Temp./C

kVA
Single
Phase

kVA
Three
Phase

506

XPTQ

E79947V1

50B8

B3223

130

.050-.150

N/A

506

XPTQ

E79947V1

50B8

1062

YEFR

E56936V1

N/A

Swim Pool & Spa
Hardwired CVR

379
1012

HDGV
QQFU

E111069V1
E86492V1

N/A
6B81

Portable PLC
Industrial Control
General Purpose
Opti-Miser® & DIT

1012
506
1561

QQFU
XPTQ
XQNX

E86492V1
E79947V1
E12547V3

60B1
50B8
542B

X3221
H3221
H3180
H3221
H3180
B3223
X3221
B3223
B3223
C3222

155
180
180
180
180
130
155
130
130
220

.25-5.0
7.5-25.0
5.0
7.5-25.0
0.10-.30
.25-3.0
5.0-15.0
.25-2.0
.050-5.0
37.5-250.0

3.0-6.0
7.5-75.0
N/A
9.0-30.0
N/A
N/A
N/A
N/A
N/A
25-1000

Air Conditioning
and Refrigeration
Appliance

NONE

NONE

NONE

N/A

NONE

130

.085-2.0

N/A

Acme Construction
Style

Acme Catalog
Product Name

Enclosed

General Purpose
and Buck-Boost
General Purpose
Buck-Boost & DIT
Panel Tran®

Compound Filled
(Encapsulated)

Open Core & Coil
Air Cooled
Ventilated &
Non Ventilated
Enclosed

① % of rated current (or next higher standard rating).
② In cases where the secondary is overcurrent protected, the primary overcurrent
protection rating can be no more than 250% (2.5 times) full load amps (shown on
above chart). For example, if a 10 kVA, single phase transformer has a 480V primary
and a 120/240 secondary, and the secondary is overcurrent protected, maximum
primary overcurrent protection rating is 20.8 amps (full load current) x 2.5 (250%) =
52. Therefore, use a standard 50 amp fuse or breaker selected from NEC Section
240-6 (below).

Section 240-6 of the 1999 National Electrical Code. The standard ampere ratings
for fuses and inverse time circuit breakers shall be considered 15, 20, 25, 30, 35, 40,
45, 50, 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225, 250, 300, 350, 400, 450, 500,
600, 700, 800, 1000, 1200, 1600, 2000, 2500, 3000, 4000, 5000 and 6000 amperes.
Exception: Additional standard ratings for fuses shall be considered 1, 3, 6, 10, and
601. “Extracted by permission from ANSI/NFPA 70-1999, National Electrical
Code ®, Copyright ©,1999, National Fire Protection Association, Boston, MA.”
Acme Electric–Power Distribution Products Division has never used
polychlorinated biphenyls (PCBs) in the manufacture of our quality products.

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

General 0412.indd 151

151

6/13/12 12:24 PM

GENERAL

ELECTRICAL CONNECTION
ALPHANUMERICAL
CATALOG
DIAGRAMS
NUMBER INDEX

Alphanumerical Catalog Number Index
This alphanumerical listing of catalog numbers has been
prepared to help you locate the appropriate page, when only
CATALOG NO.	

152

PAGE NO.

CATALOG NO.	

PAGE NO.

the catalog number is known. It is arranged in alphanumerical
order according to the first letter of the catalog number.
CATALOG NO.	

PAGE NO.

CATALOG NO.	

PAGE NO.

100B12HA............................... 122

AE120150.................................. 71

CE010150................................. 72

DM124033S............................ 120

100B20HA............................... 122

AE120250.................................. 71

CE010250................................. 72

DM12405S.............................. 120

100B7HA................................. 122

AE120350.................................. 71

CE010350................................. 72

DM12410S.............................. 120

200B20HA............................... 122

AE120500.................................. 71

CE010500................................. 72

DM12420................................. 119

200B24HA............................... 122

AE120750.................................. 71

CE09950................................... 72

DM12440................................. 119

200B48HA............................... 122

ALRB002TBC............................ 51

CE020050................................. 72

DM13613................................. 119

200B7HA................................. 122

ALRB003TBC............................ 50

CE020100................................. 72

DM1480125............................. 119

500B24HA............................... 122

ALRB004TBC............................ 50

CE020150................................. 72

DM148017S............................ 120

500B48HA............................... 122

ALRB006TBC............................ 50

CE020250................................. 72

DM148025S............................ 120

750B24HA............................... 122

ALRB008TBC............................ 50

CE020350................................. 72

DM14805S.............................. 120

750B48HA............................... 122

ALRB012TBC............................ 50

CE020500................................. 72

DM14810 ................................ 119

AE010050.................................. 70

ALRB016TBC............................ 50

CE020750................................. 72

DMP1120125.......................... 120

AE010075.................................. 70

ALRB025TBC............................ 50

CE030050................................. 72

DMP112025............................ 120

AE010100.................................. 70

ALRB027TBC............................ 50

CE030075................................. 72

DMP11204.............................. 120

AE010150.................................. 70

ALRB035TBC............................ 50

CE030100................................. 72

DMP11502.............................. 120

AE010250.................................. 70

ALRB045TBC............................ 50

CE030150................................. 72

DMP124006............................ 120

AE010350.................................. 70

ALRB055TBC............................ 50

CE030250................................. 72

DMP1240125.......................... 120

AE010500.................................. 70

ALRB080TBC............................ 50

CE030350................................. 72

DMP12402.............................. 120

AE09950.................................... 70

ALRB110CBC........................... 50

CE030500................................. 72

DMP14801.............................. 120

AE020050.................................. 70

ALRB130CBC........................... 50

CE030750................................. 72

DMP1504................................ 120

AE020075.................................. 70

ALRB160CBC........................... 50

CE040050................................. 73

DRR15..................................... 121

AE020100.................................. 70

ALRB200CBC........................... 50

CE040100................................. 73

DRR15GFI............................... 121

AE020150.................................. 70

ALRB250CBC........................... 50

CE040150................................. 73

DTFA0112S............................... 47

AE020250.................................. 70

ALRB300CBC........................... 50

CE040250................................. 73

DTFA01184S............................. 47

AE020300.................................. 70

ALRB360CBC........................... 50

CE040350................................. 73

DTFA0142S............................... 47

AE020350.................................. 70

ALRB420CBC........................... 50

CE040500................................. 73

DTFA01454S............................. 47

AE020500.................................. 70

ALRB480CBC........................... 50

CE040750................................. 73

DTFA01754S............................. 47

AE020750.................................. 70

ALRC002TBC............................ 50

CE050050................................. 73

DTFA0202S............................... 47

AE030050.................................. 70

ALRC003TBC............................ 50

CE050150................................. 73

DTFA02204S............................. 47

AE030075.................................. 70

ALRC004TBC............................ 50

CE050250................................. 73

DTFA0274S............................... 47

AE030100.................................. 70

ALRC006TBC............................ 50

CE050350................................. 73

DTFA0344S............................... 47

AE030150.................................. 70

ALRC008TBC............................ 50

CE050500................................. 73

DTFA0404S............................... 47

AE030250.................................. 70

ALRC012TBC............................ 50

CE050750................................. 73

DTFA0514S............................... 47

AE030350.................................. 70

ALRC016TBC............................ 50

CE060050................................. 73

DTFA0634S............................... 47

AE030500.................................. 70

ALRC025TBC............................ 50

CE060075................................. 73

DTFA0754S............................... 47

AE030750.................................. 70

ALRC027TBC............................ 50

CE060100................................. 73

DTFA0934S............................... 47

AE060050.................................. 71

ALRC035TBC............................ 50

CE060150................................. 73

DTFA72S................................... 47

AE060075.................................. 71

ALRC045TBC............................ 50

CE060250................................. 73

DTGA002754S.......................... 46

AE060100.................................. 71

ALRC055TBC............................ 50

CE060300................................. 73

DTGA0112S.............................. 46

AE060150.................................. 71

ALRC080TBC............................ 50

CE060350................................. 73

DTGA01184S............................ 46

AE060250.................................. 71

ALRC110CBC........................... 50

CE060500................................. 73

DTGA0142S.............................. 46

AE060350.................................. 71

ALRC130CBC........................... 50

CE060750................................. 73

DTGA01454S............................ 46

AE060500.................................. 71

ALRC160CBC........................... 50

CMT533124S............................ 35

DTGA01754S............................ 46

AE060750.................................. 71

ALRC200CBC........................... 50

CMT533134S............................ 35

DTGA0202S.............................. 46

AE070050.................................. 71

ALRC250CBC........................... 50

CMT533144S............................ 35

DTGA02204S............................ 46

AE070100.................................. 71

ALRC300CBC........................... 50

CMT533154S............................ 35

DTGA0274S.............................. 46

AE070150.................................. 71

ALRC360CBC........................... 50

CMT533164S............................ 35

DTGA03304S............................ 46

AE070250.................................. 71

ALRC420CBC........................... 50

CMT533174S............................ 35

DTGA0344S.............................. 46

AE070350.................................. 71

ALRC480CBC........................... 50

DM112045............................... 119

DTGA0404S.............................. 46

AE070500.................................. 71

ALRC600CBC........................... 50

DM11206S.............................. 120

DTGA0514S.............................. 46

AE070750.................................. 71

CE010050................................. 72

DM11208S.............................. 120

DTGA0634S.............................. 46

AE120050.................................. 71

CE010075................................. 72

DM11215S.............................. 120

DTGA0754S.............................. 46

AE120100.................................. 71

CE010100................................. 72

DM124025............................... 119

DTGA0934S.............................. 46

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

GENERAL
CATALOG NO.	

ELECTRICAL CONNECTION
ALPHANUMERICAL
CATALOG
DIAGRAMS
NUMBER INDEX
PAGE NO.

CATALOG NO.	

PAGE NO.

CATALOG NO.	

PAGE NO.

CATALOG NO.	

PAGE NO.

DTGA72S.................................. 46

DTHB72S.................................. 46

PL79906.................................... 78

SA7701321.............................. 142

DTGB002754S.......................... 46

FS1100...................................... 77

PL79907.................................... 78

SPS12012................................ 115

DTGB008804S.......................... 46

FS11000.................................... 77

PL79908.................................... 78

SPS152428.............................. 115

DTGB0112S.............................. 46

FS1150...................................... 77

PL79911.................................. 141

SPS3012.................................. 115

DTGB01184S............................ 46

FS1250...................................... 77

PL79912.................................. 141

SPS302428.............................. 115

DTGB0142S.............................. 46

FS1350...................................... 77

PL79920.................................... 75

SPS6012.................................. 115

DTGB01454S............................ 46

FS150........................................ 77

PL79921.................................... 75

SPWS2424.............................. 126

DTGB01754S............................ 46

FS1500...................................... 77

PL79922.................................... 75

SPWS2436.............................. 126

DTGB0202S.............................. 46

FS175........................................ 77

PL79923.................................... 75

SPWS2448.............................. 126

DTGB02204S............................ 46

FS1750...................................... 77

PL79924.................................... 75

SPWS2472.............................. 126

DTGB0274S.............................. 46

FS2100...................................... 77

PL79924.............................. 64, 75

SPWS53OV............................. 126

DTGB03304S............................ 46

FS21000.................................... 77

PL79925.................................... 75

T111683................ 93, 94, 96, 100

DTGB0344S.............................. 46

FS2150...................................... 77

PL79926.................................... 75

T111684................ 93, 94, 96, 100

DTGB0404S.............................. 46

FS21500.................................... 77

PL79927.................................... 75

T111685................ 93, 94, 96, 100

DTGB04404S............................ 46

FS22000.................................... 77

PL79928.................................... 75

T111686................ 93, 94, 96, 100

DTGB0514S.............................. 46

FS2250...................................... 77

PL79928.............................. 64, 75

T111687................ 93, 94, 96, 100

DTGB05504S............................ 46

FS2300...................................... 77

PL79929.................................... 75

T113073...................... 95, 98, 100

DTGB0634S.............................. 46

FS23000.................................... 77

PL79929.............................. 64, 75

T113074...................... 95, 98, 100

DTGB06604S............................ 46

FS2350...................................... 77

PL79930.................................... 75

T113075...................... 95, 98, 100

DTGB0754S.............................. 46

FS250........................................ 77

PL79930.............................. 64, 75

T113076...................... 95, 98, 100

DTGB07704S............................ 46

FS2500...................................... 77

PL79931.................................... 75

T113077...................... 95, 98, 100

DTGB0934S.............................. 46

FS275........................................ 77

PL79931.............................. 64, 75

T137920...................... 96, 99, 100

DTGB72S.................................. 46

FS2750...................................... 77

PLC85000............................... 115

T137921...................... 96, 99, 100

DTGB9902S.............................. 46

FS31000.................................... 77

PLC85001............................... 115

T137922...................... 96, 99, 100

DTHA002754S.......................... 46

FS3150...................................... 77

PLC85002............................... 115

T137923...................... 96, 99, 100

DTHA0112S.............................. 46

FS31500.................................... 77

PLC85003............................... 115

T137924...................... 96, 99, 100

DTHA01184S............................ 46

FS32000.................................... 77

PLC85004............................... 115

T153004.................................... 17

DTHA0142S.............................. 46

FS3250...................................... 77

PT061150005LS...................... 106

T153005.................................... 17

DTHA01454S............................ 46

FS33000.................................... 77

PT061150005SS..................... 106

T153006.................................... 17

DTHA0202S.............................. 46

FS3350...................................... 77

PT061150007LS...................... 106

T153104.................................... 19

DTHA0274S.............................. 46

FS350........................................ 77

PT061150007SS..................... 106

T153105.................................... 19

DTHA03304S............................ 46

FS3500...................................... 77

PT061150010LS...................... 106

T153106.................................... 19

DTHA0344S.............................. 46

FS3750...................................... 77

PT061150010SS..................... 106

T153929.................................... 67

DTHA0404S.............................. 46

GP1210000S............................. 22

PT061150015LS...................... 106

T153930.................................... 67

DTHA0514S.............................. 46

GP121000S............................... 22

PT061150015SS..................... 106

T153931.................................... 67

DTHA0634S.............................. 46

GP1215000S............................. 22

PT061150025LS...................... 106

T160800.................................. 112

DTHA0754S.............................. 46

GP12250S................................. 22

PT061150025SS..................... 106

T160830.................................. 112

DTHA0934S.............................. 46

GP123000S............................... 22

PTBA3150009LS....................... 99

T160831.................................. 112

DTHA72S.................................. 46

GP125000S............................... 22

PTBA3150009SS....................... 99

T160832.................................. 112

DTHB002754S.......................... 46

GP12500S................................. 22

PTBA3150015LS....................... 99

T160833.................................. 112

DTHB006604S.......................... 46

LUG1....................................... 146

PTBA3150015SS....................... 99

T160834.................................. 112

DTHB0112S.............................. 46

LUG2....................................... 146

PTBA3150022LS....................... 99

T160835.................................. 112

DTHB01184S............................ 46

LUG3....................................... 146

PTBA3150022SS....................... 99

T169430.................................. 115

DTHB0142S.............................. 46

LUG4....................................... 146

PTBA3150030LS....................... 99

T169431.................................. 115

DTHB01454S............................ 46

PL112600.................................. 64

PTBA3150030SS....................... 99

T169432.................................. 115

DTHB01754S............................ 46

PL112601.................................. 64

SA1701319.............................. 142

T169433.................................. 115

DTHB0202S.............................. 46

PL112602.................................. 64

SA1701320.............................. 142

T169434.................................. 115

DTHB02204S............................ 46

PL112603.................................. 64

SA1701321.............................. 142

T169435.................................. 115

DTHB0274S.............................. 46

PL112700.................................. 64

SA2701319.............................. 142

T169436.................................. 115

DTHB03304S............................ 46

PL112701.................................. 64

SA2701320.............................. 142

T169437.................................. 115

DTHB0344S.............................. 46

PL112702.................................. 64

SA2701321.............................. 142

T169438.................................. 115

DTHB0404S.............................. 46

PL112703.................................. 64

SA3701319.............................. 142

T169439.................................. 115

DTHB04404S............................ 46

PL112704.................................. 64

SA3701320.............................. 142

T179600S.................................. 92

DTHB0514S.............................. 46

PL112705.................................. 64

SA3701321.............................. 142

T179603S.................................. 92

DTHB05504S............................ 46

PL112706.................................. 64

SA4701319.............................. 142

T179604S.................................. 92

DTHB0634S.............................. 46

PL112707.................................. 64

SA4701320.............................. 142

T179605S.................................. 92

DTHB0754S.............................. 46

PL79900.................................. 141

SA4701321.............................. 142

T179608S.................................. 92

DTHB0934S.............................. 46

PL79905.................................... 78

SA6701319.............................. 142

T179609S.................................. 92

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

153

GENERAL
CATALOG NO.	

154

ELECTRICAL CONNECTION
ALPHANUMERICAL
CATALOG
DIAGRAMS
NUMBER INDEX
PAGE NO.

CATALOG NO.	

PAGE NO.

CATALOG NO.	

PAGE NO.

CATALOG NO.	

PAGE NO.

T179615S.................................. 92

T2530134S................................ 17

T2A533281S.............................. 25

TA281197.................................. 62

T179618S.................................. 92

T253013S.................................. 17

T2A533291S.............................. 25

TA281202.................................. 62

T179619S.................................. 92

T253013SS................................ 17

T2A533401S.............................. 25

TA281203.................................. 62

T179620S.................................. 92

T2530144S................................ 17

T2A533601S.............................. 22

TA281205.................................. 62

T179621S.................................. 92

T253014S.................................. 17

T2A792681S.............................. 27

TA281218.................................. 60

T179622S.................................. 92

T253014SS................................ 17

T2A792691S.............................. 27

TA281219.................................. 60

T179623S.................................. 92

T253060.................................... 20

T2A792701S.............................. 27

TA281220.................................. 60

T179624S.................................. 92

T253061.................................... 20

T2A793301S.............................. 26

TA281221.................................. 60

T179625S.................................. 92

T253062.................................... 20

T2A793311S.............................. 26

TA281240.................................. 62

T179629S.................................. 92

T253063.................................... 20

T2A793321S.............................. 26

TA281241.................................. 62

T179630S.................................. 92

T253064.................................... 20

T2A795161S.............................. 27

TA83221.................................... 64

T179631S.................................. 92

T253065.................................... 20

T2A795171S.............................. 27

TA83222.................................... 64

T181047................ 85, 94, 96, 100

T253066.................................... 20

T2A795181S.............................. 27

TA83223.................................... 64

T181048................ 85, 94, 96, 100

T253067.................................... 20

T2A795523S.............................. 28

TA83224.................................... 64

T181049................ 85, 94, 96, 100

T25399S.................................... 19

T2A795533S.............................. 28

TA83300.................................... 63

T181050................ 85, 94, 96, 100

T253108S.................................. 19

T2A795543S.............................. 28

TA83301.................................... 63

T181051................ 85, 94, 96, 100

T253109S.................................. 19

T2A795553S.............................. 28

TA83302.................................... 63

T181052................ 85, 94, 96, 100

T253110S.................................. 19

T335000153S............................ 26

TA83303.................................... 63

T181054...................... 95, 98, 100

T253111S.................................. 19

T3527101.................................. 29

TA83304.................................... 63

T181055...................... 95, 98, 100

T253112S.................................. 19

T353040S.................................. 18

TA83305.................................... 63

T181056...................... 95, 98, 100

T2531131S................................ 19

T353041S.................................. 18

TA83306.................................... 63

T181057...................... 95, 98, 100

T2531141S................................ 19

T353042S.................................. 18

TA83310.................................... 64

T181058...................... 95, 98, 100

T2531193S................................ 19

T353043S.................................. 18

TA83311.................................... 64

T181059...................... 95, 98, 100

T2531203S................................ 19

T353044S.................................. 18

TA83312.................................... 64

T181061...................... 96, 99, 100

T2535153S................................ 17

T3533111S................................ 23

TA83313.................................... 64

T181062...................... 96, 99, 100

T253515SS................................ 17

T353311SS................................ 25

TA83314.................................... 64

T181063...................... 96, 99, 100

T2535163S................................ 17

T3533411S................................ 25

TA83315.................................... 64

T181064...................... 96, 99, 100

T253516SS................................ 17

T3533611S................................ 22

TA83316.................................... 64

T181065...................... 96, 99, 100

T2535173S................................ 17

T353545S.................................. 18

TB181141.................................. 59

T181066...................... 96, 99, 100

T253517SS................................ 17

T353546S.................................. 18

TB181142.................................. 59

T181217.................................... 67

T2535183S................................ 17

T353547S.................................. 18

TB181143.................................. 59

T181219.................................... 67

T253518SS................................ 17

T353548S.................................. 18

TB181144.................................. 59

T181220.................................... 67

T2536151S................................ 19

T379083S.................................. 29

TB181146.................................. 59

T181221.................................... 67

T2536161S................................ 19

T3792711S................................ 27

TB181148.................................. 59

T181223.................................... 67

T2536171S................................ 19

T3793123S................................ 24

TB181149.................................. 59

T211688................ 85, 94, 96, 100

T2536181S................................ 19

T379312SS................................ 25

TB181150.................................. 59

T211689................ 85, 94, 96, 100

T2793762S................................ 22

T3793133S................................ 24

TB181151.................................. 59

T213078...................... 95, 98, 100

T279740S.................................. 20

T379313SS................................ 25

TB269300.................................. 63

T213079...................... 95, 98, 100

T279741S.................................. 20

T3793143S................................ 24

TB269301.................................. 63

T243570...................... 96, 99, 100

T279742S.................................. 20

T379314SS................................ 25

TB269302.................................. 63

T243571...................... 96, 99, 100

T279743S.................................. 20

T3793331S................................ 26

TB269303.................................. 63

T25012S.................................... 82

T279744S.................................. 20

T3793343S................................ 26

TB269304.................................. 63

T25024S.................................... 82

T279745S.................................. 20

T3793353S................................ 26

TB269305.................................. 63

T2527031.................................. 29

T279746S.................................. 20

T3793363S................................ 26

TB269306.................................. 63

T2527051.................................. 29

T279747S.................................. 20

T3793671S................................ 22

TB269307.................................. 63

T2527071.................................. 29

T279748S.................................. 20

T3795191S................................ 27

TB32403.................................... 62

T253007S.................................. 17

T2A527121................................ 29

T3795511S................................ 28

TB32404.................................... 62

T253007SS................................ 17

T2A527131................................ 29

T3796931S................................ 27

TB32405.................................... 62

T253008S.................................. 17

T2A527151................................ 29

TA253929.................................. 60

TB32406.................................... 62

T253008SS................................ 17

T2A527171................................ 29

TA253930.................................. 60

TB32669.................................... 62

T253009S.................................. 17

T2A527181................................ 29

TA253931.................................. 60

TB54523.................................... 62

T253009SS................................ 17

T2A527191................................ 29

TA254525.................................. 62

TB54524.................................... 62

T253010S.................................. 17

T2A533081S.............................. 23

TA254535.................................. 62

TB81000.................................... 60

T253010SS................................ 17

T2A53308SS............................. 25

TA254536.................................. 62

TB81001.................................... 60

T253011S.................................. 17

T2A533091S.............................. 23

TA254537.................................. 62

TB81002.................................... 60

T253011SS................................ 17

T2A53309SS............................. 25

TA254538.................................. 62

TB81003.................................... 60

T253012S.................................. 17

T2A533101S.............................. 23

TA254539.................................. 62

TB81004.................................... 60

T253012SS................................ 17

T2A53310SS............................. 25

TA281008.................................. 60

TB81005.................................... 60

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

GENERAL
CATALOG NO.	

ELECTRICAL CONNECTION
ALPHANUMERICAL
CATALOG
DIAGRAMS
NUMBER INDEX
PAGE NO.

CATALOG NO.	

PAGE NO.

CATALOG NO.	

PAGE NO.

CATALOG NO.	

PAGE NO.

TB81006.................................... 60

TF252794S................................ 21

TP533123S................................ 23

TPC533193S............................. 23

TB81007.................................... 60

TF252795S................................ 21

TP533128S................................ 24

TPC3533111S......................... 132

TB81009.................................... 60

TF252796S................................ 21

TP533131S................................ 24

TPC3533113S......................... 132

TB81020.................................... 60

TF252797S................................ 21

TP533133S................................ 23

TPC3533121S......................... 132

TB81200.................................... 59

TF279260S................................ 21

TP533138S................................ 24

TPC3533123S......................... 132

TB81201.................................... 59

TF279261S................................ 21

TP533141S................................ 24

TPC3533131S......................... 132

TB81210.................................... 59

TF279262S................................ 21

TP533143S................................ 23

TPC3533133S......................... 132

TB81211.................................... 59

TF279263S................................ 21

TP533148S................................ 24

TPC3533141S......................... 132

TB81212.................................... 59

TF279264S................................ 21

TP533151S................................ 24

TPC3533143S......................... 132

TB81213.................................... 59

TF279265S................................ 21

TP533153S................................ 23

TPC3533151S......................... 132

TB81214.................................... 59

TF279266S................................ 21

TP533158S................................ 24

TPC3533153S......................... 132

TB81215.................................... 59

TF279267S................................ 21

TP533161S................................ 24

TPC3533161S......................... 132

TB81216.................................... 59

TF279300S................................ 21

TP533163S................................ 23

TPC3533163S......................... 132

TB81217.................................... 59

TF279301S................................ 21

TP533168S................................ 24

TPC3533171S......................... 132

TB81301.................................... 61

TF279302S................................ 21

TP533171S................................ 24

TPC3533173S......................... 132

TB81302.................................... 61

TF279303S................................ 21

TP533173S................................ 23

TPC3533181S......................... 132

TB81303.................................... 61

TF279304S................................ 21

TP533181S................................ 24

TPC3533183S......................... 132

TB81304.................................... 61

TP131023S................................ 26

TP533183S................................ 23

TPC3533191S......................... 132

TB81305.................................... 61

TP131033S................................ 26

TP533191S................................ 24

TPC3533193S......................... 132

TB81306.................................... 61

TP131043S................................ 26

TP533624S................................ 22

TPNS00533113S....................... 40

TB81307.................................... 61

TP131423S................................ 27

TP533634S................................ 22

TPNS00533123S....................... 40

TB81308.................................... 61

TP131433S................................ 27

TP533644S................................ 22

TPNS00533133S....................... 40

TB81309.................................... 61

TP131443S................................ 27

TP533654S................................ 22

TPNS00533143S....................... 40

TB81321.................................... 61

TP131053S................................ 26

TP533664S................................ 22

TPNS00533153S....................... 40

TB81322.................................... 61

TP131063S................................ 26

TP533674S................................ 22

TPNS00533163S....................... 40

TB81323.................................... 61

TP131073S................................ 26

TP536491S................................ 19

TPNS00533173S....................... 40

TB81324.................................... 61

TP130993S................................ 26

TP536503S................................ 19

TPNS01533113S....................... 40

TB81325.................................... 61

TP131123S................................ 26

TP536513S................................ 19

TPNS01533121S....................... 41

TB81326.................................... 61

TP131133S................................ 26

TP79085S.................................. 29

TPNS01533123S....................... 40

TB81327.................................... 61

TP1533193S.............................. 23

TP79087S.................................. 29

TPNS01533131S....................... 41

TB81328.................................... 61

TP1533213S.............................. 23

TP79088S.................................. 29

TPNS01533133S....................... 40

TB81329.................................... 61

TP1533222S.............................. 23

TP792724S................................ 27

TPNS01533141S....................... 41

TB83210.................................... 64

TP1533423S.............................. 25

TP792734S................................ 27

TPNS01533143S....................... 40

TB83212.................................... 64

TP1533433S.............................. 25

TP792744S................................ 27

TPNS01533151S....................... 41

TB83213.................................... 64

TP1533443S.............................. 25

TP793684S................................ 22

TPNS01533153S....................... 40

TB83215.................................... 64

TP1533453S.............................. 25

TP793694S................................ 22

TPNS01533161S....................... 41

TB83218.................................... 64

TP1533463S.............................. 25

TP793704S................................ 22

TPNS01533163S....................... 40

TB83219.................................... 64

TP1533473S.............................. 25

TP793714S................................ 22

TPNS01533173S....................... 40

TB83220.................................... 64

TP1533483S.............................. 25

TP793724S................................ 22

TPNS01792714S....................... 41

TC530193S............................... 18

TP1533493S.............................. 25

TP793734S................................ 22

TPNS01792724S....................... 41

TC530203S............................... 18

TP1533503S.............................. 25

TP793744S................................ 22

TPNS01792734S....................... 41

TC533111S............................... 23

TP35000303S............................ 26

TP795203S................................ 27

TPNS01792744S....................... 41

TC535153S............................... 18

TP35000453S............................ 26

TP795213S................................ 27

TPNS02533113S....................... 40

TC535163S............................... 18

TP35000753S............................ 26

TP795223S................................ 27

TPNS02533123S....................... 40

TC535173S............................... 18

TP35001123S............................ 26

TP795233S................................ 27

TPNS02533133S....................... 40

TC535183S............................... 18

TP35001503S............................ 26

TP795243S................................ 27

TPNS02533143S....................... 40

TE1530223S.............................. 18

TP35002253S............................ 26

TP796944S................................ 27

TPNS02533153S....................... 40

TE2530193S.............................. 18

TP35003003S............................ 26

TP796954S................................ 27

TPNS02533163S....................... 40

TE2530203S.............................. 18

TP530193S................................ 17

TP796964S................................ 27

TPNS02533173S....................... 40

TE2A530213S........................... 18

TP530203S................................ 17

TP796974S................................ 27

WSA1...................................... 142

TF217437S................................ 21

TP530213S................................ 17

TP796984S................................ 27

WSA2...................................... 142

TF217439S................................ 21

TP530223S................................ 17

TPC533123S............................. 23

WSA3...................................... 142

TF220105S................................ 28

TP530233S................................ 17

TPC533133S............................. 23

WSA4...................................... 142

TF220155S................................ 28

TP530243S................................ 17

TPC533143S............................. 23

WSA5...................................... 142

TF220255S................................ 28

TP531213S................................ 19

TPC533153S............................. 23

WSA6...................................... 142

TF220505S................................ 28

TP531223S................................ 19

TPC533163S............................. 23

WSA8...................................... 142

TF249873S................................ 21

TP531233S................................ 19

TPC533173S............................. 23

WSB3...................................... 142

TF252520S................................ 21

TP533121S................................ 24

TPC533183S............................. 23

WSB4...................................... 142

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

155

GENERAL

156

ELECTRICAL CONNECTION
ALPHANUMERICAL
CATALOG
DIAGRAMS
NUMBER INDEX

ACME ELECTRIC • MILWAUKEE, WI • 800.334.5214 • acmepowerdist.com

SAVE SPACE & MONEY

IN A SNAP!
The NEW Acme Electric DM Series
Compact, cost-effective DIN Rail DC Power Supplies

Maximize uptime with Acme’s DM Series Power Supplies
» Universal input eliminates voltage gaps
for full product application versatility
» Adjustable output voltage compensates
for voltage drop

» MTBF up to 500,000 hours
» Installs quickly and easily
» 5 year warranty

» Power factor correction minimizes
harmonic distortion

Single phase • Slimline single phase • Plastic
15–480 watts; 5–48 volts

Power Quality Application Expertise Industry-Leading Technical Support Off-the-Shelf Availability

Visit www.acmedinps.com to learn more about the exciting DM Series.
©2010 Acme Electric. All rights reserved.

General 0412.indd 157

157

6/13/12 12:24 PM

General Purpose Transformers
For over eighty-eight years, Acme Electric has been manufacturing Power Conditioning Equipment for use
in industrial, commercial and OEM applications. Built on a reputation for superior service, quality and
technical expertise in the transformer market, Acme is regarded as a true industry leader.

Dry Type General Purpose Transformers

Harmonic Mitigating Transformers

Acme Electric is a full line manufacturer of low voltage (600V
and below) dry type distribution transformers using both copper
and aluminum conductor, offering an array of products between
0.05 -1000 KVA.

Harmonic currents can sometimes cause equipment to
malfunction, motors to burn out, circuit breakers to trip, and
fuses to blow. In such a case, there is an advantage to specifying
a transformer that treats the harmonic anomalies versus simply
tolerating them. Acme’s Harmonic Mitigating Transformers offer
the best solution for combating harmonics associated with nonlinear loads.

All Acme products are designed, constructed and rated to
meet or exceed the standards established by NEMA, ANSI and
IEEE. With few exceptions, all ACME transformers are
UL Listed.

K-Factor Transformers
Non-sinusoidal harmonic currents are created by much of
today’s electronic equipment. In fact, the switch mode power
supply found in desktop computers, data processors and other
office equipment is a major source of harmonic currents. Other
sources include electronic ballasts, variable frequency drives,
heating controls and rectifier circuits.
These non-linear loads can cause the transformer’s neutral
conductor to overheat, requiring special transformer design.
Acme’s non-linear load isolation transformers use special
winding techniques to minimize the eddy current losses
generated by harmonic currents. A double-sized neutral
conductor handles the excessive neutral current found in
non-linear load applications, preventing the transformer
from overheating.

These foil wound transformers will, by nature, be smaller, more
efficient, and have lower eddy current losses than their wire
wound counterparts. Acme’s Harmonic Mitigating Transformers
utilize a time proven zig-zag connection in the secondary circuit
that results in a phase shift of the triplen harmonics and causes
them to cancel one another. This technology not only results in
cooler operation and “cleaner power”, but also provides a more
energy efficient means of dealing with harmonic problems.

CSL-3 / NEMA Premium Transformers
The Acme POWERWISE C3 sets a new standard for
efficiency and reliability. Due to the use of more efficient core
material and higher-grade electrical steel, POWERWISE C3
transformers are the most efficient commercially available
transformers. With a 30% increase in efficiency performance
over standard TP-1 transformers, these energy-efficient units
exceed the requirements of the US Department of Energy
Candidate Standard Level (CSL) 3 performance standard.
POWERWISE C3 transformers achieve the lowest life cycle
costs by reducing annual energy costs. Depending on the size
of the transformer, this can mean thousands of dollars saved
per transformer. And, because they generate lower losses, they
reduce power drawn from generating stations, resulting in lower
greenhouse gas emissions and less smog.
Acme POWERWISE C3 transformers are copper wound,
3-phase common-core, dry-type ventilated isolation
transformers. Each transformer is meticulously constructed
to ANSI/IEEE Standards and is UL and CSA listed. The
POWERWISE C3 transformer is a perfect choice for K
through 12, college, university, healthcare, governmental and
commercial buildings where the total life cycle cost of the
facility and its electrical system is a priority.

158

General 0412.indd 158

6/13/12 12:24 PM

General Purpose Transformers
Options / Product Modifications /
Customization

Test Capabilities
ACME has significant in house test capabilities to ensure
highest product quality. These testing capabilities include,
but not limited to:

Despite ACME’s broad range of products, we know that
not every application requirement neatly fits with a specific
catalog item. As such, our technical support and engineering
teams can help you define and build the perfect product
for your unique need. Typical product modifications or
customizations include the following:
•
•
•
•
•
•
•
•
•
•

•
•
•
•
•
•
•
•

Wall Mounting Brackets
Specific Agency Listings
Aluminum or Copper Windings
Custom Tap Arrangements
kVA and Voltage Arrangements
Custom Performance Characteristics
Low Noise Requirements
Harmonic Mitigation with 0° and 30° phase angles
80°C and 115°C Temperature Rise
Various Constructions and Enclosures
• Encapsulated
• Non-ventilated
• NEMA 3R
• Open Core and Coil
• Stainless Steel Enclosures

Temperature Rise
Efficiency under linear and non-linear loads
Sound Level
Induced potential
Insulation resistance
Inductance
BIL
Non-linear load efficiency testing (Acme has
the unique ability to test efficiency with either
customer specified or pre-defined load profiles
up to K-factor 20)

Minimum Efficiency Levels
SINGLE PHASE

kVA

THREE PHASE

NEMA TP-1
Efficiency

%

kVA

NEMA TP-1 Minimum
% Efficiency

NEMA Premium
(DOE CSL-3)
% Efficiency

15

97.7

15

97.0

97.9

25

98.0

30

97.5

98.3

37.5

98.2

45

97.7

98.4

50

98.3

75

98.0

98.6

75

98.5

112.5

98.2

98.7

100

98.6

150

98.3

98.8

167

98.7

225

98.5

99.0

250

98.8

300

98.6

99.0

500

98.7

99.1

750

98.8

1000

98.9

159

General 0412.indd 159

6/13/12 12:24 PM

Peace of mind

Rock-solid power solutions
for over 80 years.
In today’s high-tech environments, it’s often the products you don’t see that are the most critical to your
success. That’s why leaders across a broad spectrum of industries look to Acme Electric for power
conversion and power conditioning equipment. While our products work quietly behind the scenes, our
engineers and researchers are out in front, discovering new ways to deliver power more efficiently in a
world ever aware of energy consumption and generation. Join customers around the globe who trust
Acme for reliable, efficient solutions in industrial, commercial, and OEM applications.

Acme Electric • N85 W12545 Westbrook Crossing • Menomonee Falls, WI 53051 • Phone: 262.293.1500 • acmetransformer.com
©2012 Acme Electric. All rights reserved.

160

General 0412.indd 160

6/13/12 12:24 PM

GENERAL

ACME TRANSFORMER GENERAL INFORMATION

NOTES

161

General 0412.indd 161

6/13/12 12:24 PM

GENERAL

ACME TRANSFORMER GENERAL INFORMATION

NOTES

162

General 0412.indd 162

6/13/12 12:24 PM

ACME ELECTRIC 10-YEAR LIMITED* WARRANTY
Acme Electric (Acme) warrants to the original purchaser to correct by repair, replacement or refund of
original purchase price, at Acme’s option, products manufactured and sold by its Power Distribution Products
Division, that may fail in service within the applicable period as set forth below, from the date of manufacture
provided however, that conditions of operation have been normal at all times, and that the equipment has not
been subjected to abnormal stress from such causes as incorrect primary voltage or frequency, improper
ventilation or improper use. This warranty is made on the condition that prompt notice of defect is given to
Acme in writing within the warranty period, and that Acme’s inspection reveals to its satisfaction that the original
purchaser’s claim is valid under the terms of this warranty. Acme’s obligation under this warranty, which is
in lieu of all other warranties, express or implied, including the implied warranty of fitness for a particular purpose
and merchantability, is limited to replacing or repairing defective products or parts, free of charge, provided
they are returned to the factory, or refund of original purchase price, at Acme’s option. However, purchased
components (except for timers and photocells used in low voltage lighting power supplies) including but not
limited to capacitors, circuit breakers, terminal blocks, batteries, fuses and tubes shall not be covered under
this warranty. Repairs or replacement deliveries shall not interrupt or prolong the term of this warranty. Acme
will not be liable for any special, indirect, consequential or incidental damages, including, without limitation,
from loss of use, data, function or profits deriving out of or in connection with the use or performance of
the product and shall have no liability for payment of any other damages whether in an action of contract,
strict liability or tort. The remedy provided herein states Acme Electric’s entire liability and buyer’s sole and
exclusive remedy here under. Rights may vary in certain states.
*Warranty Period:
Standard Catalog Transformers — 10-year limited; Low Voltage Lighting Power Supplies, transformer —
®
10-year limited, photocell and timer — 3 years; Standard Power™ DC Power Supplies — 2 years; True-Power
Power Line Conditioners, — 10-year limited; Custom products — 1 year.

Acme Transformers are Shielded for Cleaner Power – Free!
®

™

Shielding is a FREE standard
feature. Acme transformers have built-

The more you use, the cleaner
your system. The Acme shield

in noise and surge protection provided
by internal electrostatic shielding. It’s
a standard feature on Acme general
purpose dry-type transformers.

constantly works to trap, knockdown
and shunt potentially damaging noise
and voltage spikes to ground at an
average reduction ratio of 100:1. The
more Acme shielded transformers you
use on the feeder and branch circuits,
the cleaner your system becomes.
Use two Acme transformers on the
same feeder and branch circuits, and
get 10,000:1 reduction.

Acme transformers provide clean
power. They provide noise and surge
protection for entire feeder and branch
circuits, plus every connected load.
And, they establish a separately derived
circuit and provide a solid single
point ground—all essential for cleaner
power. Install Acme transformers, and
take the most fundamental and cost
effective step toward cleaner power.

Intro Page Warranty_0412.indd 2

With Acme you get all the extra benefits
of cleaner power, absolutely FREE!

Shielded
for cleaner
power
™

6/13/12 1:01 PM

acmetransformer.com

Acme Electric

Acme Electric
N85 W12545 Westbrook Crossing
Menomonee Falls, WI 53051
800.334.5214

Full Line Product Catalog

Full Line Product Catalog

Today, Actuant Electrical provides electrical tools, transformers, sockets and switches, wiring
devices and other power management products for the professional, retail/do-it-yourself (DIY),
harsh environment, marine, and diverse OEM end-market channels. Our focus is to create
innovative electrical products using consistent, high quality processes. We deliver these
products wherever our customers need them, anywhere in the world. Whether we power
life-saving medical machines or alternative energy sources or create electrical products for
marine on-board applications or industrial environments, the varied experience behind our
products translates into quality for our customers. actuant.com/electrical

ELECTRICAL
©2012 Actuant Corporation. All rights reserved.

ACM_CAT_005_0412



---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.6
Linearized                      : Yes
Create Date                     : 2012:06:28 06:57:20-05:00
Modify Date                     : 2012:07:17 11:11:32-05:00
Has XFA                         : No
XMP Toolkit                     : Adobe XMP Core 4.2.1-c043 52.372728, 2009/01/18-15:08:04
Metadata Date                   : 2012:07:17 11:11:32-05:00
Document ID                     : uuid:f0201104-b819-4ddd-9a37-2eab37dfdfde
Instance ID                     : uuid:11e18dcb-1d8e-4fc7-9570-52f6d83fcad5
Format                          : application/pdf
Producer                        : Creo Normalizer JTP
Trapped                         : False
Page Count                      : 164

EXIF Metadata provided by EXIF.tools