Product Detail Manual

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Dry-Type Distribution Transformers
Harmonic Mitigating Transformers
- Harmonic Mitigating Transformers
Non-Linear Load® Transformers
Drive Isolation Transformers & AC Line Reactors
Industrial Control Transformers
Low Voltage Lighting Transformers & Power Supplies
Buck-Boost Transformers
Panel-Tran® Zone Power Centers
Air Conditioning, Refrigeration & Appliance Transformers
Power Conditioning Products
- True-Power® Constant Voltage Regulators & Power Line Conditioners
Powerwise C3 Transformer
General Information

FULL LINE PRODUCT CATALOG

CommerCial ConstruCtion • industrial automation

ACM_CAT_007_0913

Acme Electric

N85 W12545 Westbrook Crossing

Menomonee Falls, WI 53051

800.334.5214

acmetransformer.com

Acme Electric Full Line Product Catalog

For over eighty-eight years, Acme Electric has

been manufacturing power conversion and

power conditioning equipment for use in indus-

trial, commercial and OEM applica-

tions. Acme has built its reputation

as a true industry leader by provid-

ing superior service, quality and

technical expertise to the trans-

former market.

Acme Electric is a full line manufacturer of low

voltage (600V and below) dry type distribution

transformers, industrial control transformers and

power quality equipment. With roughly 1300 cat-

alog sku's, our products cover the full spectrum

of applications, from general purpose power dis-

tribution in commercial applications,

to ultra-efficient transformers used

in alternative energy, to transform-

ers that address harmful harmonic

conditions generated in today's

electrical loads. All of our products

are designed, manufactured and

verified to exceed the standards established by

UL, CSA, CE, NEMA, ANSI and IEEE.

Acme operates out of two main facilities. Our

headquarters in Menomonee Falls is home to our

engineering and management staff. Our engi-

neers utilize modern computer aided design tools

and an in-house test lab to quickly, efficiently and

effectively turn around new product designs. The

Menomonee Falls facility also houses a power

laboratory which provides our engineering team

with the ability to test the performance of high

efficiency transformers and power quality equip-

ment under user-defined harmonic conditions.

This rather unique capability enables us to pro-

vide further assurance to our customers that our

products are fully qualified to meet the unique

challenges of their applications.

Manufacturing takes place in Acme's new

state-of-the-art, ISO 9001 production facility in

Monterrey, Mexico. With 133,000 square feet

of manufacturing space, it contains

the staffing, the equipment and the

processes indicative of world class,

flexible manufacturing operations.

The Monterrey facility also houses

an in house test lab with certifica-

tions from UL, CSA, ISO and TUV. Our manu-

facturing team is credited with defining and exe-

cuting the assembly methods and processes

that sustain Acme Electric's reputation as the

supplier of the highest quality transformers in

the industry. And, our on-site quality team takes

the lead in ensuring continuous improvement in

everything we do.

Once the manufacturing process

is complete, our products are

shipped to eight regional ware-

houses in the United States. The

location of each warehouse was

strategically determined to provide rapid deliv-

ery and short lead times to every corner of the

contiguous 48 states. And, with nearly 600

stocked part numbers, Acme has what you

need when you need it.

Acme's technical support team has over 100

years of combined experience in the electrical

industry. Only one phone call away, our techni-

cal support team is prepared and ready to help

you solve a broad range of challenges. From

finding the right solution for your application, to

helping you install your brand new transformer,

to helping you troubleshoot an electrical phe-

nomenon in your equipment or facility, our tech-

nical service team embodies our philosophy that

our commitment to the customer does not end

with the shipment of product.

Leadership in Quality Designed Products

And Quality Customer Satisfaction

ACME ELECTRIC

Selection Guide .................................................................................................................................83

General Purpose Low Voltage Transformers ...................................................................................84

Buck-Boost Lighting Transformers ...................................................................................................85

Wiring Diagrams ................................................................................................................................86

Low Voltage Lighting Transformers & Power Supplies

Information contained in this catalog is subject to change without notice and therefore cannot be guaranteed by Acme.

Harmonic Mitigating Transformers .............................................................................................. 34-35

SECTION 1

SECTION 2

SECTION 3

SECTION 4

SECTION 6

TABLE OF CONTENTS

Transformer Questions & Answers ................................................................................................ 6-10

Selection Steps ............................................................................................................................. 11-12

Construction Features .................................................................................................................. 13-15

316 Stainless Steel Transformers .............................................................................................17 & 25

Selection Charts, 1Ø and 3Ø ....................................................................................................... 17-29

Auto-Transformers .....................................................................................................................20 & 29

Auto Arrangements (Using 2 Single Phase) .................................................................................... 30

Auto Zig-Zag Transformers ............................................................................................................... 31

Non-Standard 3Ø Applications ......................................................................................................... 32

Design Figures, Wiring Diagrams & Accessories ...................................................................122-134

Dry-Type Distribution Transformers

Harmonic Mitigating Transformers

Non-Linear Description & Features ............................................................................................. 37-39

Non-Linear Selection Charts ........................................................................................................ 40-41

Non-Linear Definition of Terms ......................................................................................................... 42

Design Figures, Wiring Diagrams & Accessories ...................................................................122-134

Non-Linear Load® Transformers

General Description & Features .................................................................................................. 43-45

Selection Charts ........................................................................................................................... 46-47

Windings, Terminations & Construction ........................................................................................... 47

Thermal Switches .............................................................................................................................. 47

AC Line Reactors General Descriptions ..................................................................................... 48-49

AC Line Reactors Dimensional Drawings ........................................................................................ 48

AC Line Reactors Selection Charts .................................................................................................. 50

Drive Isolation Transformers & AC Line Reactors

SECTION 5

Selection Steps .................................................................................................................................. 52

TA Series Open Core & Coil Construction Features ........................................................................ 53

TA Series Open Core & Coil Primary & Secondary Fuse Sizing Info ......................................... 54-55

TA Series Open Core & Coil Primary & Secondary Fuse Sizing Info Fuse Kits ........................ 54-55

TA Series Open Core & Coil Jumper Link Connections .................................................................. 55

TB Series Open Core & Coil General Description & Features ....................................................... 56

TB Series Open Core & Coil Primary & Secondary Fuse Sizing Info ....................................... 57-58

TA & TB Series Open Core & Coil Transformers Selection Charts ............................................ 59-64

TA Series Open Core & Coil Wiring Diagrams & Dimensional Drawings ...................................... 65

TB Series Open Core & Coil Wiring Diagrams & Dimensional Drawings ...................................... 66

Harsh Environment Control Transformers ........................................................................................ 67

AE/CE Series Encapsulated Transformers .................................................................................. 68-75

Finger/Guard® Industrial Control Transformers. . . . . . . . . . . . ................................................... 76-79

Industrial Control Transformers

SECTION 8

TABLE OF CONTENTS

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

Panel-Tran® Zone Power Centers

Construction Features ..............................................................................................................110-111

Selection Steps ................................................................................................................................ 111

Selection Charts .............................................................................................................................. 112

SECTION 9

Air Conditioning, Refrigeration & Appliance Transformers

True-Power® Constant Voltage Regulators

Introduction & Features .......................................................................................................114

Specifications ....................................................................................................................... 115

Selection Charts, Portable & Hardwired .............................................................................115

Dimensional Drawings ......................................................................................................... 116

SECTION 10

Power Conditioning Products

GENERAL

Design Figures ................................................................................................................................122

Wiring Diagrams .......................................................................................................................123-132

Transformer Accessories .........................................................................................................133-134

Acme Specifications Guide .....................................................................................................135-138

Industry Standards Data .................................................................................................................139

Alphanumerical Catalog Number Listing ................................................................................140-144

Product Warranty & Shielding Information .............................................................Inside Back Cover

General Information

Description & Applications ...........................................................................................................88-89

Questions & Answers ...................................................................................................................89-93

Selection Charts, Single Phase ....................................................................................................94-96

Selection Charts, Three Phase.....................................................................................................97-99

Specifications & Dimensions ..........................................................................................................100

Wiring Diagrams .......................................................................................................................101-102

SECTION 7

Buck-Boost Transformers

SECTION 11

CSL-3 Super Efficient Transformers ....................................................................................................... 117

General Description and Features ...................................................................................................118-119

Selection Charts ...................................................................................................................................... 120

Powerwise C3 Transformer

SECTION

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

DRY-TYPE

DISTRIBUTION

TRANSFORMERS

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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.

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).

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.

Transformer Questions & Answers

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.

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.

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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 over-

loaded? 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.

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.

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

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 dry-

type 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

Total Winding Temperature °C

COIL HOT SPOT

DIFFERENTIAL

AV. WINDING

RISE

AMBIENT

105

130

180

220

115

150

AGENCY: UL/ANSI 1561 MARCH 1987

40 40 40 40

Figure A

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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 connect ed together,

refer to diagram below. This leaves one high voltage and

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 75,000 VA

√3 x Line Volts √3 x 480 V

90 Amps

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.

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.

Maximum Ambient Maximum Percentage

Temperature of Loading

40°C (104°F) 100%

50°C (122°F) 92%

60°C (140°F) 84%

H1 H2

x2 x1

120 VOLT

OUTPUT

240 VOLT

INPUT

VOLT

METER

360

VOLT

READING

ADDITIVE

POLARITY

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION 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.

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

NOTE: If motor is to be started more than once per hour add

20% additional kVA.

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

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:

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.

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.

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.

50 100 150 200 250

100

SPEED (PERCENT OF

SYNCHROUS SPEED)

TORQUE (PERCENT OF FULL LOAD TORQUE)

SPEED vs TORQUE FOR A TYPICAL THREE PHASE

INDUCTION TYPE SQUIRREL CAGE MOTOR

STALL

ZONE

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

36. Can 4-Winding Single Phase Transformer be auto-

connected? 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.

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.

NOTE: that maximum loading on any phase does not exceed

10 kVA. Each phase has a 15 kVA capacity.

45 kVA

3 phase = 15 kVA per phase

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.

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.

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.

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.

Figure 1

480V

H3 H2 H4 X1 X3 X2 X4

240V

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 fall-

ing rain, sleet and external ice formation.

Definitions Pertaining to Enclosures

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.

(NEUTRAL)

10 KVA

8 KVA 4 KVA5 KVA

CORRECT WAY:

(NEUTRAL)

10 KVA

5 KVA 4 KVA

INCORRECT WAY:

8 KVA

CORRECT WAY:

1 KVA

120V

240V 8 KVA

1 KVA

INCORRECT WAY:

1 KVA 1 KVA

120V

240V 8 KVA

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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%.

1 Phase kVA = Volts x Amps

1000

NOTE: If motors are started more than once per

hour, increase minimum transformer kVA by 20%.

Steps for Selecting the Proper Transformer

SINGLE PHASE LOADS

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.

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 volt-

age 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 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:

Amps = kVA x 1000

Volts

Single Phase Example

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.

Answer: Compute the kVA required.

1.3 amps x 120 volts = .156 kVA

1000

For each lighting fixture

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 trans-

former 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.

TABLE 1

Full Load Current in Amperes–

Single Phase Circuits

MIN.

HORSE- 115 V 208 V 230 V TRANS-

POWER FORMER

KVA

1/6 4.4 2.4 2.2 .53

1/4 5.8 3.2 2.9 .70

1/3 7.2 4.0 3.6 .87

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

10 100 55 50 12.0

TABLE 2

Full Load Amperes

Single Phase A.C. Motors ①

kVA 120 V 208 V 240 V 277 V 380 V 440V 480 V 600 V

.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

.750 6.3 3.6 3.1 2.7 2.0 1.7 1.6 1.3

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 17 15.6 12.5

10 83 48 41 36 26 22.7 20.8 16.7

15 125 72 62 54 39 34 31 25

25 208 120 104 90 65 57 52 41

37.5 312 180 156 135 98 85 78 62

50 416 240 208 180 131 114 104 83

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

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

THREE PHASE LOADS

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.

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:

Amps = 3 Phase kVA x 1000

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.

TABLE 3

Full Load Current in Amperes–

Three Phase Circuits

TABLE 4

Full Load Amperes

Three Phase A.C. Motors

①

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%.

MIN.

HORSE- 208 V 230 V 460 V 575 V TRANS-

POWER FORMER

KVA

1/2 2.2 2.0 1.0 0.8 0.9

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

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

kVA 208 V 240 V 380 V 440 V 480 V 600 V

3 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

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

UL-3R Enclosures

ENCAPSULATED SINGLE PHASE, .05 to .150 kVA

n 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.

n 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

n UL listed, CSA certified and UL-3R enclosure meets or exceeds all listing

criteria including NEMA, ANSI and OSHA standards.

n Easy and convenient installation to meet your re quirements, the transformer

can be mounted in any position.

n Long Life UL class 130°C insulation system. Transformers can be banked for

three phase service.

n Large wiring compartment, no conduit or pull boxes required. Front access

for wiring ease. Wiring compartment remains cool.

n Completely enclosed UL-3R enclosure for indoor/outdoor service. Rugged

non-ventilated construction.

n Plenty of knockouts for multi-directional entry.

n All copper lead wire terminations.

n Ground studs for use with non-metallic conduit.

FEATURES

n UL listed, CSA certified and UL-3R enclosures meets or

exceeds all listing criteria including NEMA, ANSI and OSHA

standards.

n Shielded for cleaner power.

n 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.

n Quiet operation with sound levels well below NEMA standards.

n 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.

ENCAPSULATED SINGLE PHASE, .250 to 25 kVA

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

316 STAINLESS STEEL

TRANSFORMERS

FEATURES

n 3R enclosure.

n Encapsulated construction.

n Single phase: 0.25 – 25 kVA.

Three phase: 3 – 7.5 kVA.

n Core and Coil assembly completely encapsulated in

polyester or epoxy seals out all moisture, eliminating

corrosion and deterioration of insulation.

n Electrostatic shielding.

APPLICATIONS

n Harsh industrial locations

n Corrosive chemical exposure

n Waste water treatment facilities

n Coastal or marine applications with high salt mist

n Any application where painted cold roll steel is not adequate

Shielded Power in Many Design Styles

ENCAPSULATED THREE PHASE 3 to 75 kVA

FEATURES

n UL listed, CSA certified and UL-3R enclosure meets

or exceeds all listing criteria including NEMA, ANSI and

OSHA standards.

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

n Extra large front access wiring compartment through 9 kVA;

top access through 75 kVA for easier installation and cooler

case temperatures.

n Completely enclosed — suitable for indoor/outdoor

service. Consult selection charts for details. Excellent for

dust or lint laden atmosphere.

n 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.

n High efficiency and excellent regulation.

n Sound levels below NEMA standards.

n Keyhole mounting slots permit installation of mounting

bolts prior to hanging transformer and are accessible from

the front. Lifting ears for easy installation.

n Wiring connections can be made outside of wiring

compartment due to the use of flexible leads.

n 3-9 kVA provided with dual size knockouts in sides and

bottom of wiring compartment.

n Termination — copper lead wire.

n Electrostatic shielding provided on all 60 Hz isolation

transformers.

NOTE:

Units above 15 kVA apply to Groups F and K.

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

FEATURES

n With weather shield, UL Type 3R enclosure type 2 enclosure

without weather shield. UL listed and CSA certified.

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

n Extra large wiring compartment for easier installation and

cooler case temperatures.

n NEMA standard bus bar terminals, no special tools

needed to make clearly marked connections. Tap

changing easily accomplished with jumpers.

n Aluminum windings for increased insulation life, cooler

operation, lower losses.

n Noise and vibration isolating pads standard to assure

quiet operation.

n Large permanently legible nameplates on front.

n Single phase units can be banked for 3 phase service.

n All units have ground studs for use with non-metallic

conduit.

n Suitable for wall or “trapeze” mounting. Wall brackets are

available for units up to 50 kVA single and 75 kVA

three phase.

n Other models are available with class 220°C insulation

and either 115°C or 80°C rise operating temperature. Refer

to Opti-Miser® Section.

n Termination — single phase 37.5 to 100 kVA, copper bus;

167 to 250 kVA, aluminum bus. Three phase 27 to 225 kVA,

copper bus; Groups D, G & J 30 to 225 kVA and all 275 to

1000 kVA, aluminum bus.

n Electrostatic shielding provided on all 60 Hz

isolation transformers. Not available on

Groups D1 and G.

VENTILATED

SINGLE PHASE 37.5 to 250 kVA

THREE PHASE 25 to 1000 kVA

General Purpose Transformers • CSL-3/NEMA Premium Transformers • Harmonic Mitigating Transformers • Non-Linear Load Transformers

Drive Isolation Transformers • Line Reactors • Buck Boost Transformers • Constant Voltage Regulators…and more

TRANSFORMING THE WAY WE SERVE OUR CUSTOMERS

TRANSFORMING THE DEFINITION OF CUSTOMER SERVICE

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supporting multi-million dollar

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Multiple World-class

manufacturing facilities

Industry leading Technical

Support Department and NEW

fully searchable online catalog

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

SELECTION CHARTS

SINGLE PHASE

①

Suitable for 50/60 Hz.

②

Wall mounting brackets are available for these sizes, refer to page 133.

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

316 STAINLESS STEEL

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

GROUP I–316SS

GROUP I

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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) F ② NA WSA1 5–E

50.00 TP530203S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 350 (158.8) F ② 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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

0.25 T253007SS 8.68 (22.0) 4.08 (10.4) 3.88 (9.9) 10 (4.5) W NA NA 2-B

0.50 T253008SS 9.06 (23.0) 4.37 (11.1) 4.20 (10.7) 15 (6.8) W NA NA 2-B

0.75 T253009SS 9.68 (24.6) 4.75 (12.1) 4.50 (11.4) 19 (8.6) W NA NA 2-B

1.00 T253010SS 10.50 (26.7) 5.50 (14.0) 5.13 (13.0) 24 (10.9) W NA NA 2-B

1.50 T253011SS 11.62 (29.5) 5.50 (14.0) 5.13 (13.0) 30 (13.6) W NA NA 2-B

2.00 T253012SS 13.00 (33.0) 5.50 (14.0) 5.13 (13.0) 38 (17.2) W NA NA 2-B

3.00 T253013SS 11.50 (29.2) 10.31 (26.2) 7.13 (18.1) 55 (24.9) W NA NA 3-C

5.00 T253014SS 14.38 (36.5) 10.31 (26.2) 7.13 (18.1) 75 (34.0) W NA NA 3-C

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

Notes: 0.25 through 25.0 kVA encapsulated (exempt from TP1)

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

① Suitable for 50/60 Hz.

② Wall mounting brackets are available for these sizes, refer to page 133.

NON-VENTILATED TRANSFORMERS

—

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

GROUP II

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

GROUP IA

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

7.50 TC535153S 15.19 (38.6) 13.50 (34.3) 10.84 (27.5) 100 (45.4) W 0.75-1.25 (1.9-3.2) NA 4–D

10.00 TC535163S 15.19 (38.6) 13.50 (34.3) 10.84 (27.5) 120 (54.4) W 0.75-1.25 (1.9-3.2) NA 4–D

15.00 TC535173S 16.94 (43.0) 14.12 (35.9) 11.59 (29.4) 160 (72.6) W 1.00-1.50 (2.5-3.8) NA 4–D

25.00 TC535183S 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 TPC530193S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 295 (133.8) F ② NA WSA1 5–E

50.00 TPC530203S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 378 (172.0) F ② NA WSA1 5–E

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

37.50 TE2530193S 35.47 (90.1) 31.90 (81.0) 26.90 (68.3) 430 (195.0) F ② NA NA 5–H

50.00 TE2530203S 35.47 (90.1) 31.90 (81.0) 26.90 (68.3) 430 (195.0) F ② 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

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

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

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

GROUP IV

GROUP V

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Page 122

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) F ② NA WSA1 11-E

50.00 TP531203S 29.90 (76.0) 28.15 (71.5) 22.37 (56.8) 340 (154.0) F ② 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

①

Suitable for 50/60 Hz.

②

Wall mounting brackets are available for these sizes, refer to page 133.

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

37.5 TP536491S 25.48 (64.7) 24.39 (62.0) 19.37 (49.2) 257 (117.0) F ② N/A WSA1 58–E

50.0 TP536503S 25.48 (64.7) 24.39 (62.0) 19.37 (49.2) 340 (154.2) F ② N/A WSA1 17–E

75.0 TP536513S 35.40 (89.9) 31.90 (81.0) 26.88 (68.2) 420 (190.5) F ② N/A WSA3 17–E

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

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

AUTO-TRANSFORMERS

240 PRIMARY VOLTS — 120/240 SECONDARY VOLTS — 1Ø, 60 Hz

GROUP VIII

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

1.0 T253060 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

1.5 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

2.0 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

120/208/240/277 PRIMARY VOLTS –– 120/240 SECONDARY VOLTS –– 1Ø, 60 Hz

GROUP VII

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

1.0 T279740S 10.50 (26.7) 5.50 (14.0) 5.13 (13.0) 23 (10.4) W 0.50-0.75 (1.3-1.9) NA 23–B

1.5 T279741S 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 23–B

2.0 T279742S 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

3.0 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

5.0 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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

EXPORT MODEL

②

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

GROUP XI

* CE Marked

EXPORT MODEL

190/200/208/220 X 380/400/416/440 PRIMARY VOLTS

120/240 SECONDARY VOLTS — 1Ø, 50/60 Hz

GROUP IX

EXPORT MODEL

②

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

GROUP X

* CE Marked

① Wall mounting brackets are available for these sizes, refer to page 133.

② Maximum exciting current 5% at 50 Hz.

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

* 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 TF252794S 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

* 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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

*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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

*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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

208 DELTA PRIMARY VOLTS –– 480Y/277 SECONDARY VOLTS –– 3Ø, 60 Hz

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

SELECTION CHARTS THREE PHASE

GROUP A

GROUP B

① Wall mounting brackets are available for these sizes, refer to page 133.

② Consult factory for wiring diagram.

277/480 PRIMARY VOLTS –– 208/277 SECONDARY VOLTS –– 1Ø, 60 Hz

GROUP XII

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

15.0 T3793671S 18.86 (48.0) 20.30 (51.6) 9.03 (22.9) 245 (111.0) F ① NA NA 48–I

30.0 TP793684S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 330 (150.0) F ① NA WSA1 46–E

45.0 TP793694S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 400 (181.0) F ① NA WSA1 46–E

75.0 TP793704S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 530 (240.0) F ① NA WSA2 46–E

112.5 TP793714S 35.47 (90.1) 31.90 (81.0) 26.90 (68.3) 750 (340.0) F NA WSA3 46–E

150.0 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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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 18–F

15.0 T3533611S 18.86 (48.0) 20.30 (51.6) 9.03 (23.0) 250 (113.0) F ① NA NA 18–I

30.0 TP533624S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 325 (147.0) F ① NA WSA1 19–E

45.0 TP533634S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 350 (158.8) F ① NA WSA1 19–E

75.0 TP533644S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 450 (204.1) F ① 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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

0.25 GP12250S 8.68 (22.0) 4.08 (10.4) 3.88 (9.9) 12 (5.4) W 0.50-0.75 (1.3-1.9) NA 78-B

0.50 GP12500S 9.06 (23.0) 4.37 (11.1) 4.20 (10.7) 19 (8.6) W 0.50-0.75 (1.3-1.9) NA 78-B

1.00 GP121000S 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

3.00 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

5.00 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

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

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

480 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY –– 3Ø, 60 Hz

GROUP D

① Wall mounting brackets are available for these sizes, refer to page 133.

② Consult factory for wiring diagram.

480 DELTA PRIMARY VOLTS –– COPPER WINDINGS –– 208Y/120 SECONDARY VOLTS, 150°C RISE –– 3Ø, 60 Hz

GROUP D2

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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

15.0 TC533111S* 18.90 (48.0) 20.30 (51.6) 9.00 (22.9) 245 (111.1) F ① NA NA 21–I

30.0 TPC533123S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 346 (157.0) F ① NA WSA1 22–E

45.0 TPC533133S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 397 (180.1) F ① NA WSA1 22–E

75.0 TPC533143S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 521 (236.3) F ① 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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

3.0 T2A 533081S 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 21–F

6.0 T2A533091S 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 21–F

9.0 T2A533101S 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 21–F

15.0 T3533111S 18.86 (48.0) 20.30 (51.6) 9.03 (22.9) 250 (113.0) F ① NA NA 21–I

30.0 TP533123S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 290 (132.0) F ① NA WSA1 22–E

45.0 TP533133S 25.50 (64.7) 24.39 (61.9) 19.37 (49.2) 400 (181.0) F ① NA WSA1 22–E

75.0 TP533143S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 500 (226.8) F ① 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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

For Additional Low Temperature Rise 115° and 80°C Units Consult Factory

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

GROUP D4

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

30.0 TP533121S 29.48 (74.9) 28.15 (71.5) 22.37 (56.8) 360 (163.3) F ① NA WSA2 22-E

45.0 TP533131S 29.48 (74.9) 28.15 (71.5) 22.37 (56.8) 417 (189.2) F ① NA WSA2 22-E

75.0 TP533141S 35.47 (90.1) 31.90 (81.0) 26.88 (68.3) 536 (243.1) F ① 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

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

GROUP D5

For Copper Wound Transformers Consult Factory

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

30.0 TP533128S 25.49 (64.7) 24.39 (61.9) 19.37 (49.2) 364 (165.1) F ① 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

① Wall mounting brackets are available for these sizes, refer to page 133.

ENCAPSULATED TRANSFORMERS, 115°C RISE

480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz

GROUP F

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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)

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

① Wall mounting brackets are available for these sizes, refer to page 133.

316 STAINLESS STEEL

ENCAPSULATED TRANSFORMERS, 115° C RISE

480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz

GROUP F – 316 SS

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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)

480 DELTA PRIMARY VOLTS –– 240 DELTA / 120 TAP SECONDARY VOLTS

MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY –– 3Ø, 60 Hz

GROUP G

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA② CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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

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 25–F

15.0 T3-533411S 18.86 (47.9) 20.30 (51.6) 9.03 (22.9) 250 (113.0) F ① NA NA 25–I

30.0 TP1533423S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 325 (147.0) F ① NA WSA1 26–E

45.0 TP1533433S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 400 (181.0) F ① NA WSA1 26–E

75.0 TP1533443S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 500 (226.8) F ① 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.

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

① Wall mounting brackets are available for these sizes, refer to page 133.

480 DELTA PRIMARY VOLTS –– 480Y/277 SECONDARY VOLTS

MAY BE USED ON A 4 WIRE 480Y/277 VOLT SUPPLY –– 3Ø, 60 Hz

GROUP I

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

15.0 T335000153S 18.86 (48.0) 20.30 (51.6) 9.03 (22.9) 250 (113.0) F ① NA NA 31–I

30.0 TP35000303S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 325 (147.0) F ① NA WSA2 31–E

45.0 TP135000453S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 400 (181.0) F ① NA WSA2 31–E

75.0 TP35000753S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 600 (272.0) F ① 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

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

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

GROUP J

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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) F ① NA NA 28–I

30.0 TP131023S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 325 (147.0) F ① NA WSA1 29–E

45.0 TP131033S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 400 (181.0) F ① NA WSA1 29–E

75.0 TP131043S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 600 (272.0) F ① NA WSA2 29–E

112.5 TP-131053S 35.47 (90.1) 31.90 (81.0) 26.88 (68.3) 750 (340.0) F NA WSA3 29-E

150.0 TP-131063S 41.52 (105.5 32.90 (83.6) 29.87 (75.9) 970 (440) F NA WSA4 29-E

225.0 TP-131073S 41.52 (105.5 32.90 (83.6) 29.87 (75.9) 1200 (544) F NA WSA4 29-E

300.0 TP-130993S 45.60 (115.8) 39.50 (100.3) 35.50 (90.2) 1550 (703.0) F NA WSA5 29-E

500.0 TP-131123S 57.84 (146.9) 45.00 (114.3) 41.50 (105.4) 2480 (1125.0) F NA WSA7 29-E

750.0 TP-131133S 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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

GROUP M

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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

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 55–F

15.0 T3795191S 18.86 (47.9) 20.30 (51.6) 9.03 (22.9) 250 (113.0) F ① NA NA 55–I

30.0 TP795203S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 400 (181.0) F ① NA WSA2 51–E

45.0 TP795213S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 425 (193.0) F ① NA WSA2 51–E

75.0 TP795223S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 700 (318.0) F ① 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

①Wall mounting brackets are available for these sizes, refer to page 133.

GROUP Q

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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

15.0 T3-796931S 18.86 (48.0) 20.30 (51.6) 9.03 (22.9) 245 (111.1) F ① NA NA 70–I

30.0 TP796944S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 330 (149.7) F ① NA WSA1 71–E

45.0 TP796954S 25.48 (64.7) 24.39 (61.9) 19.37 (49.2) 380 (172.4) F ① NA WSA1 71–E

75.0 TP796964S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 455 (206.4) F ① 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: 3.0 through 15.0 kVA units are encapsulated (TP1 exempt), 30.0 through 150.0 kVA are TP1 compliant

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

GROUP 0

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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 60–F

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) F ① NA NA 60–I

30.0 TP792724S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 300 (136.0) F ① NA WSA1 61–E

45.0 TP792734S 25.48 (64.7) 24.39 (61.9) 19.37 (49.2) 365 (166.0) F ① NA WSA1 61–E

75.0 TP792744S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 500 (227.0) F ① NA WSA2 61–E

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

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

GROUP P

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

30.0 TP131423S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 299 (135.6) F ① NA WSA1 69–E

45.0 TP131433S 25.48 (64.7) 24.39 (61.9) 19.37 (49.2) 353 (160.1) F ① NA WSA1 69–E

75.0 TP131443S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 463 (210.0) F ① NA WSA2 69–E

Notes: 30.0 through 75.0 kVA units TP1 compliant

Notes: 15 kVA unit encapsulated (TP1 exempt), 30.0 through 150.0 kVA TP1 compliant

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

① Wall mounting brackets are available for these sizes, refer to page 133.

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

GROUP T

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

15.0 T3795511S 20.80 (52.8) 20.90 (53.1) 10.20 (25.9) 435 (197.3) F NA NA 24–I

30.0 T2A795523S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 365 (165.6) F ① NA WSA1 20–E

45.0 T2A795533S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 468 (212.3) F ① 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

Notes: 50 Hz units (TP1 exempt)

GROUP U

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

10.0 TF220105S 18.90 (48.0) 20.30 (51.6) 9.00 (22.9) 245 (111.1) F ① NA NA 73–I

15.0 TF220155S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 291 (132.0) F ① NA WSA1 73–E

25.0 TF220255S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 375 (170.1) F ① NA WSA1 73–E

50.0 TF220505S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 437 (198.2) F ① NA WSA2 73–E

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

Notes: 50 Hz units (TP1 exempt)

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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.

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

GROUP V

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

15.0 T379083S 18.86 (47.9) 20.30 (51.6) 9.03 (22.9) 300 (136.1) F ① NA NA 75-I

30.0 TP79085S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 511 (231.8) F ⑤ NA WSA2 74-E

45.0 TP79087S 25.50 (64.8) 24.39 (62.0) 19.37 (49.2) 540 (244.9) F ⑤ 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

AUTO-TRANSFORMERS

600 PRIMARY VOLTS –– 480 SECONDARY VOLTS –– 3Ø, 60 Hz

480 PRIMARY VOLTS –– 380 SECONDARY VOLTS –– 3Ø, 50/60 Hz ALTERNATE RATING

kVA APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams &

600 Pri. 480 Pri.

CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall KNOCKOUTS SHIELD Design Figures

480V Sec.

380 Sec. HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor Inches (Cm.) P/N Begin on Page 122

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) F ① NA NA 56–I

112.5 90.0 T2A527121④ 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 325 (147.0) F ⑤ NA WSA1 57–E

150.0 120.0 T2A527131④ 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 350 (158.8) F ⑤ NA WSA1 57–E

225.0 180.0 T2A527151④ 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 600 (272.0) F ⑤ NA WSA2 57–E

300.0 240.0 T2A527171④ 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 650 (294.8) F ⑤ 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: 15.0 kVA unit encapsulated (TP1 exempt), 30.0 through 75.0 kVA units TP1 compliant

Notes: Auto-Transformers TP1 exempt

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

600 PRIMARY VOLTS — 480 SECONDARY (open delta) VOLTS — 3Ø, 60 Hz

480 PRIMARY VOLTS — 380 SECONDARY (open delta) VOLTS — 3Ø, 50/60 Hz

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.

600

480

VOLTS

480

380

VOLTS

DIAGRAM SHOWS NO TAP UNITS ONLY

TRANS. #1

OPEN DELTA-

AUTO

TRANS. #2

THREE PHASE

480 PRIMARY (open delta) VOLTS ––

240 SECONDARY (open delta) VOLTS –– 3Ø, 60 Hz

⑤ O = Fuse Location NEC 450-4, 1990.

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.

⑤ O = Fuse Location NEC 450-4, 1990.

Economical Auto Arrangements

Using two single phase transformers

Pri. 600V Pri. Sec. Pri. 480V Pri. Sec. Catalog ③ Max. Size

Sec. 480V Amps Amps Sec. 380V Amps Amps Qty ② No.④ Fuse or

kVA ① kVA ① Breaker

8.0 7.70 9.60 6.5 7.80 9.60 2 T253010S 15

12.0 11.55 14.40 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

Primary Secondary Max. Size

kVA ① Qty. ② Catalog No. ③ Full Load Full Load Fuse or

Amps Amps 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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

PRIMARY (INPUT): 480 VOLTS SECONDARY (OUTPUT): 480Y/277 VOLTS

3Ø, 3 WIRE ①50/60 Hz 3Ø, 4 WIRE

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.

NEUTRAL

POINT

A,B OR C

NEUTRAL

YIELDS

277 V

SINGLE

PHASE

4 WIRE

INPUT

480 V

3Ø

3 WIRE

COMMON TRIP DEVICE

NEUTRAL

TRANS. #3TRANS. #2TRANS. #1

See Footnote②

O = Fuse Location NEC 450-4, 1990.



③

Use 3 Pieces

Nameplate No. of Max. Continuous

of Available

kVA Tfmr. Three Phase Amp. Load Per

Type No.④ In

For Each Tfmr. Required kVA Phase

(277 Volts)

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

T2530134S Taps & No Taps 3.0 3 31.20 37.50

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

Auto Zig-Zag Grounding Transformers

For developing a neutral from a three phase, 3-wire supply

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

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

SECTION DRY-TYPE DISTRIBUTION TRANSFORMERS

KEY:

O.D. — Open Delta

ISO — Isolation

AUTO — Autotransformer

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

① Cannot Be Reverse Connected.

VOLTAGES AVAILABLE ACME

KVA TYPE OF DRAWING

INPUT OUTPUT RANGE CIRCUIT NO.

208 Delta 208Y/120 3-75 Isolation A-125879

208 Delta 208Y/120 3-86 Auto Zig-Zag ① A-125895

208 Delta 240 Delta/120 1.68-25.2 O.D. ISO A-700314

208 Delta 240 Delta 3-75 Isolation A-125880

208 Delta 416Y/240 3-75 Isolation A-700598

208 Delta 416Y/240 112.5-300 Isolation A-700591

208Y/120 208Y/120 3-75 Isolation A-125857

208Y/120 374Y/216 22.5-75 Isolation A-125883

208Y/120 374Y/216 112.5-750 Isolation A-102730

208Y/120 480Y/277 3-75 Isolation B-39881 (pg 2)

240 Delta 208Y/120 3-15 Isolation A-125855

240 Delta 208Y/120 9-15 Isolation A-102723

240 Delta 208Y/120 22.5-75 Isolation A-102722-B

240 Delta 208Y/120 112.5-750 Isolation A-125856

240 Delta 208Y/120 3-75 Isolation A-125858

240 Delta 240 Delta 3-75 Isolation A-125859

240 Delta 240Y/138 10.3-258.75 Auto Zig-Zag ① A-125896

240 Delta 374Y/216 22.5-75 Isolation A-125881

240 Delta 374Y/216 112.5-750 Isolation A-125882

240 Delta 480Y/277 3-75 Isolation B-39881 (pg 1)

380 Delta 240 Delta 3-75 Isolation A-700592

380 Delta 240 Delta 112.5-300 Isolation A-700593

380 Delta 228 Delta 1.4-7.0 O.D. Auto A-35633

380 Delta 228 Delta 4.2-7.0 O.D. Auto A-125892

380 Delta 228 Delta 10.4-34.5 O.D. Auto A-125893

380 Delta 228 Delta 51-227 O.D. Auto A-125894

380 Delta 416Y/240 3-75 Isolation A-700599

380 Delta 416Y/240 112.5-300 Isolation A-700594

380Y/220 240 Delta 3-75 Isolation A-700600

380Y/220 240 Delta 112.5-300 Isolation A-700595

416Y/240 440 Delta 3-75 Isolation A-700602

416Y/240 440 Delta 112.5-300 Isolation A-700597

416 Delta 240 Delta 3-75 Isolation A-700601

416 Delta 240 Delta 112.5-300 Isolation A-700596

VOLTAGES AVAILABLE ACME

KVA TYPE OF DRAWING

INPUT OUTPUT RANGE CIRCUIT NO.

416Y/240 208Y/120 3-15 Isolation A-700319

416Y/240 208Y/120 22.5-75 Isolation A-700322

480 Delta 240 Delta/120 1.68-5.04 O.D. ISO Hi-Leg ① A-125849

480 Delta 240 Delta/120 3.36 O.D. ISO Hi-Leg ① A-125850

480 Delta 240 Delta/120 5.04 O.D. ISO Hi-Leg ① A-125851

480 Delta 240 Delta/120 8.4 O.D. ISO Hi-Leg ① A-125852

480 Delta 240 Delta/120 12.6-25.2 O.D. ISO Hi-Leg ① A-125853

480 Delta 240 Delta/120 42 O.D. ISO Hi-Leg ① A-125854

480 Delta 240 Delta/120 63-266 O.D. ISO Hi-Leg ① A-111702

480 Delta 240 Delta 1.68-8.4 O.D. ISO A-32817-B

480 Delta 240 Delta 5.04-8.4 O.D. ISO A-125872

480 Delta 240 Delta 12.6-42 O.D. ISO A-125873

480 Delta 240 Delta 63-420 O.D. ISO A-125874

480 Delta 416Y/240 3-15 Isolation A-125875

480 Delta 416Y/240 9-15 Isolation A-125876

480 Delta 416Y/240 22.5-75 Isolation A-125877

480 Delta 416Y/240 112.5-750 Isolation A-125878

480 Delta 394Y/228 9-15 Isolation A-125884

480 Delta 394Y/228 22.5-75 Isolation A-125885

480 Delta 394Y/228 112.5-750 Isolation A-125886

600 Delta 208Y/120 3-6 Isolation A-102758

600 Delta 208Y/120 9-75 Isolation A-125863

600 Delta 208Y/120 112.5-500 Isolation A-125864

600 Delta 240 Delta 3-6 Isolation A-125860

600 Delta 240 Delta 9-75 Isolation A-125861

600 Delta 240 Delta 112.5-500 Isolation A-125862

600 Delta 240 Delta/120 1.68-2.52 O.D. ISO Hi-Leg ① A-125865

600 Delta 240 Delta/120 3.36 O.D. ISO Hi-Leg ① A-125866

600 Delta 240 Delta/120 5.04-25.2 O.D. ISO Hi-Leg ① A-125867

600 Delta 240 Delta/120 42 O.D. ISO Hi-Leg ① A-125868

600 Delta 240 Delta/120 63-168 O.D. ISO Hi-Leg ① A-125869

600 Delta 240 Delta 1.68-3.36 O.D. ISO A-33227-A

600 Delta 240 Delta 5.04-42 O.D. ISO A-125870

600 Delta 240 Delta 63-280 O.D. ISO A-125871

SECTION 2

General Description & Features ....................... 34

Selection Charts ................................................ 35

HARMONIC

MITIGATING

TRANSFORMERS

SECTION HARMONIC MITIGATING TRANSFORMERS

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

SECTION HARMONIC MITIGATING TRANSFORMERS

Harmonic Mitigating Transformers

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 technol-

ogy not only results in “cleaner power” but also provides the

most energy efficient means to deal with harmonic prob-

lems.

Available in sizes ranging from 30 thru 225 kVA, with copper

windings and a variety of other design options and acces-

sories, Acme harmonic mitigating transformers offer you

reduced transformer heat, reduced voltage distortion due to

3rd order harmonics, higher efficiency.

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

 Financial facilities

 Educational facilities

 TV Broadcast facilities

 Office buildings

 Hospitals

 Health care facilities

DIMENSIONAL DRAWING

SECTION HARMONIC MITIGATING TRANSFORMERS

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

SECTION HARMONIC MITIGATING TRANSFORMERS

480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS

SELECTION CHARTS

HARMONIC MITIGATING TRANSFORMERS

APPROX. DIMENSIONS  APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 122

30.0 CMT533124S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 535 (242.7) F  WSA2 81-E

45.0 CMT533134S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 600 (272.2) F  WSA2 81-E

75.0 CMT533144S 35.90 (91.2) 31.90 (81.0) 26.88 (68.3) 760 (344.7) F  WSA3 81-E

112.5 CMT533154S 41.52 (105.5) 32.90 (83.6) 29.88 (75.9) 1180 (535.2) F WSA4 81-E

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, 21

/2% BNFC

H1 H2 H3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

492 H1, H2, H3 2

480 H1, H2, H3 3

468 H1, H2, H3 4

456 H1, H2, H3 5

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

Harmonic Mitigating Transformers – How do they work?

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.

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

Diagram Showing Delta Primary &

Zig-Zag Secondary

(Zero degree angular displacement)

H2 X2

H1 H3 X1 X3

SECTION HARMONIC MITIGATING TRANSFORMERS

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

SECTION HARMONIC MITIGATING TRANSFORMERS

NOTES

SECTION 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

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

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SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

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.

Non-Linear Load Isolation® Transformers

* 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.

K-Factor/Type of Load

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

The following guide will help you select the proper

transformer when the K-factor is unknown.*

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) 21

/2% ANFC, (4) 21

/2% BNFC.

 Aluminum windings

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

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

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

Large legible

nameplates on

front cover Aluminum or copper

windings for increased life,

lower current losses

Industry standard full

capacity taps

Wound core construction for lower

losses and quiet operation

Heavy gauge steel UL Type 2

enclosures, UL-3R Listed with

weather shield accessory

Faraday shield eliminates

noise and voltage spikes

Rigid steel bottom is

punched for ventilation

Vibration isolation pads

reduce noise

Double-sized neutral

conductor handles exces-

sive neutral currents

Weather shields are available from stock

and are easily field-installed to make the

transformer weather resistant.

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

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

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz

SELECTION CHARTS THREE PHASE



Wall mounting brackets are available for these sizes, refer to page 133.



Dimensions in this section may change and are not to be used for detailed construction purposes. Please contact the factory for certified dimensional drawings.

480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz

GROUP A, K FACTOR 20, 150°C RISE

GROUP B,K FACTOR 13, 150°C RISE

GROUP C, K FACTOR 4, 150°C RISE

APPROX. DIMENSIONS  APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 122

15.0 TPNS02533113S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 325 (147.0) F  WSA1 22–E

30.0 TPNS02533123S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 420 (191.0) F  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

480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz

APPROX. DIMENSIONS  APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 122

15.0 TPNS01533113S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 325 (147.0) F  WSA1 22–E

30.0 TPNS01533123S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 360 (163.0) F  WSA2 22–E

45.0 TPNS01533133S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 440 (200.0) F  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

APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER Wiring Diagrams

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 122

15.0 TPNS00533113S 25.50 (64.8) 24.40 (62.0) 19.40 (49.3) 325 (147.0) F  WSA1 22–E

30.0 TPNS00533123S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 345 (157.0) F  WSA2 22–E

45.0 TPNS00533133S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 430 (195.0) F  WSA2 22–E

75.0 TPNS00533143S 35.90 (91.2) 31.90 (81.0) 26.88 (68.3) 560 (254.0) F WSA3 22–E

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

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

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

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS



Wall mounting brackets are available for these sizes, refer to page 133.



Dimensions in this section may change and are not to be used for detailed construction purposes. Please contact the factory for certified dimensional drawings.

480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz

GROUP H, K FACTOR 13, 115°C RISE

APPROX. DIMENSIONS  APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 122

30.0 TPNS01533121S 29.90 (75.9) 28.20 (71.6) 22.40 (56.9) 400 (181.0) F  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

Notes: All TPNS models are TP1 compliant

208 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS — 3Ø, 60 Hz

GROUP M, K FACTOR 13, 150°C RISE

APPROX. DIMENSIONS  APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 122

15.0 TPNS01792714S 25.50 (64.8) 24.90 (62.0) 19.37 (49.2) 320 (145.1) F  WSA1 61-E

30.0 TPNS01792724S 25.50 (64.8) 24.90 (62.0) 19.37 (49.2) 366 (166.0) F  WSA1 61-E

45.0 TPNS01792734S 29.40 (74.7) 28.15 (71.5) 22.37 (56.8) 522 (236.8) F  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

NON-LINEAR LOAD ISOLATION® WIRING DIAGRAMS (Refer to pgs 122-124)

NON-LINEAR LOAD ISOLATION® DESIGN FIGURES (Refer to pg 122)

Notes: All TPNS models are TP1 compliant

For Additional Low Temperature Rise 115° and 80° Degree Units and Copper Wound Units,

Consult Factory

SECTION NON-LINEAR LOAD ISOLATION® TRANSFORMERS

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

SECTION

1. L i n e a r l o a d s

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:

• Resistance heating

• Incandescent lighting

• Water heater

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.

5. Harmonic

A sinusoidal waveform with a frequency that is an integral

multiple of the fundamental 60 Hz frequency.

60 Hz Fundamental

120 Hz 2nd Harmonic

180 Hz 3rd Harmonic

240 Hz 4th Harmonic

etc.

Current waveforms from non-linear loads appear distorted

because the non-linear waveform is the result of adding

harmonic components to the fundamental current.

6. Triplen harmonics

Odd multiples of the 3rd harmonic

(3rd, 9th, 15th, 21st, etc.).

7. H a r m o n i c d i s t o r t i o n

Non-linear distortion of a system

characterized by the appearance in the output of harmonic

currents (voltages) when the input is sinusoidal.

8. Voltage harmonic distortion (VHD)

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.

9. Total harmonic distortion (THD)

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.

10. Root mean squared current

(or voltage) RMS

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.

11. Edd y cu rrent s

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.

13. St ray losse s

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.

14. Per unit value

1: Percent value divided by 100.

2: The ratio of two components of a system.

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 I2R losses of the

transformer, the total load losses are known. The “K” factor for

a linear load without harmonics is one (1).

SECTION

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

SECTION

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

SECTION DRIVE ISOLATION TRANSFORMERS

Drive Isolation Transformers

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.

DTGB0404S

DTGA72S

DTGA0142S

DTHA03304S

The Acme Drive Isolation Transformers are spe-

cifically designed to accommodate the

special voltages and kVA sizes unique to AC and

DC motor drive applications.

FEATURES

n 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.

n 3-Phase 60 Hertz.

n 180°C and 220°C insulation systems.

n Encapsulated and ventilated designs. All

ventilated units, are of strip wound construction.

Acme’s reinforced core assemblies enhance

quiet operation.

n Nominally 6% impedance.

n Designed for use with AC, adjustable frequency

or DC drives.

n 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,

taps are 2-21

/2% ANFC and 2-21

/2% BNFC.

n Full range of kVA ratings cover all standard

drive systems.

n Ample wiring compartment for easy cable entry.

n Optional wall mounting brackets for certain sizes.

Reduced short

circuit forces

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

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.

For example, a 40 Hp motor requires a

51 kVA DIT.

H.P. kVA

5.0 7.5

7.5 11.0

10.0 14.0

15.0 20.0

20.0 27.0

25.0 34.0

30.0 40.0

40.0 51.0

50.0 63.0

60.0 75.0

75.0 93.0

100.0 118.0

125.0 145.0

150.0 175.0

200.0 220.0

250.0 275.0

300.0 330.0

400.0 440.0

500.0 550.0

600.0 660.0

SECTION

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

SECTION DRIVE ISOLATION TRANSFORMERS

Wound core construction showing all copper terminations

Acme Advantages

Wound Cores and Strip

Winding mean lower losses

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.

Copper terminations provide trouble-

free operation

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.

SECTION

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

SECTION DRIVE ISOLATION TRANSFORMERS

① Optional wall mounting kits – part # PL 79911 refer to Page 133.

② Optional wall mounting kits – part # PL 79912 refer to Page 133.

The number in ( )’s following the catalog number is the electrical wiring diagram number beginning on page 122.

SELECTION CHARTS

GROUP A GROUP B

GROUP C GROUP D

Primary 575V Delta Primary 575V Delta APPROX. DIMENSIONS ③ APPROX. TYPE MTG. WEATHER

kVA Secondary 230Y/133 Secondary 460Y/266 Inches (Cm.) SHIP WEIGHT W - Wall SHIELD DIM.

CATALOG NO. CATALOG NO. HEIGHT WIDTH DEPTH Lbs. (Kg.) F - Floor P/N

DRAWING

7.5 DTHA72S DTHB72S 15.21 (38.6) 19.25 (48.9) 7.37 (18.7) 180 (81.6) W NA F

11.0 DTHA0112S DTHB0112S 18.86 (47.9) 20.30 (51.6) 9.03 (22.9) 265 (120.0) F

①

NA I

14.0 DTHA0142S DTHB0142S 18.86 (47.9) 20.30 (51.6) 9.03 (22.9) 270 (123.0) F

①

NA I

20.0 DTHA0202S DTHB0202S 20.77 (52.8) 20.94 (53.2) 10.18 (25.9) 435 (197.0) F

①

NA I

27.0 DTHA0274S (41) DTHB0274S

(44) 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 320 (145.0) F

②

WSA1 E

34.0 DTHA0344S DTHB0344S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 340 (154.0) F

②

WSA1 E

40.0 DTHA0404S DTHB0404S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 395 (179.0) F

②

WSA1 E

51.0 DTHA0514S DTHB0514S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 400 (181.0) F

②

WSA2 E

63.0 DTHA0634S DTHB0634S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 550 (250.0) F

②

WSA2 E

75.0 DTHA0754S DTHB754S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 570 (259.0) F

②

WSA2 E

93.0 DTHA0934S DTHB0934S 35.90 (91.2) 31.90 (81.0) 26.88 (68.3) 685 (311.0) F WSA3 E

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

③ Dimensions may change and are not to be used for detailed construction purposes.

Please contact the factory for certified dimensional drawings.

 Primary 460V Delta Primary 460V Delta APPROX. DIMENSIONS ③ APPROX. TYPE MTG. WEATHER

kVA Secondary 230Y/133 Secondary 460Y/266 Inches (Cm.) SHIP WEIGHT W - Wall SHIELD DIM.

CATALOG NO. CATALOG NO. HEIGHT WIDTH DEPTH Lbs. (Kg.) F - Floor P/N

DRAWING

7.5 DTGA72S DTGB72S 15.21 (38.6) 19.25 (48.9) 7.37 (18.7) 180 (81.6) W NA F

11.0 DTGA0112S DTGB0112S 18.86 (47.9) 20.30 (51.6) 9.03 (22.9) 265 (120.0) F

①

NA I

14.0 DTGA0142S DTGB0142S 18.86 (47.9) 20.30 (51.6) 9.03 (22.9) 270 (123.0) F

①

NA I

20.0 DTGA0202S DTGB0202S 20.77 (52.8) 20.94 (53.2) 10.18 (25.9) 435 (197.0) F

①

NA I

27.0 DTGA0274S (38) DTGB0274S (35) 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 320 (145.0) F

②

WSA1 E

34.0 DTGA0344S DTGB0344S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 340 (154.0) F

②

WSA1 E

40.0 DTGA0404S DTGB0404S 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 395 (179.0) F

②

WSA1 E

51.0 DTGA0514S DTGB0514S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 400 (181.0) F

②

WSA2 E

63.0 DTGA0634S DTGB0634S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 550 (250.0) F

②

WSA2 E

75.0 DTGA0754S DTGB0754S 29.90 (75.9) 28.15 (71.5) 22.37 (56.8) 570 (259.0) F

②

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 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

SECTION

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

SECTION DRIVE ISOLATION TRANSFORMERS

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.

Windings, Terminations and Construction

①

Optional wall mounting kits – part # PL 79911 refer to Page 133.

②

Optional wall mounting kits – part # PL 79912 refer to Page 133.

The number in ( )’s following the catalog number is the electrical wiring diagram number beginning on page 155.

GROUP E

Figure 1

Figure 2

COIL 1 COIL 2COIL 3

CORE

BOTTOM OF CASE

COIL 1 COIL 3

THERMAL SWITCH

.625 (1.6 cm) H DIA.

EPOXY-RING

CORE

EPOXY LAYER

TERMINAL BLOCK

.5H

(1.3 cm)

COIL 2

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 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

PRIMARY SECONDARY INSULATION CONSTRUCTION

KVA WINDING WINDING SYSTEM TERMINATION ENCLOSURE 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

PRIMARY 230 Delta APPROX. DIMENSIONS APPROX. TYPE MTG. WEATHER

kVA SECONDARY 230Y/133 Inches (Cm.) SHIP WEIGHT W – Wall Knockouts SHIELD DIM.

CATALOG NO. Height Width Depth Lbs. (Kg.) F – Floor Inches (Cm.) P/N

DRAWING

7.5 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) F ① NA NA I

14.0 DTFA0142S 18.86 (48.0) 20.30 (51.6) 9.03 (22.9) 265 (120.0) F ① NA NA I

20.0 DTFA0202S 20.77 (52.8) 20.94 (53.2) 10.18 (25.9) 435 (197.0) F ① NA NA I

27.0 DTFA0274S (59) 25.48 (64.8) 24.39 (62.0) 19.40 (49.3) 302 (137.0) F ② NA WSA1 E

34.0 DTFA0344S 25.48 (64.8) 24.39 (62.0) 19.40 (49.3) 330 (150.0) F ② NA WSA1 E

40.0 DTFA0404S 25.48 (64.8) 24.39 (62.0) 19.40 (49.3) 370 (168.0) F ② NA WSA1 E

51.0 DTFA0514S 29.40 (74.7) 28.15 (71.5) 22.40 (56.9) 375 (170.0) F ② NA WSA2 E

63.0 DTFA0634S 29.40 (74.7) 28.15 (71.5) 22.40 (56.9) 495 (225.0) F ② NA WSA2 E

75.0 DTFA0754S 29.40 (74.7) 28.15 (71.5) 22.40 (56.9) 525 (238.0) F ② 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

DRIVE ISOLATION DESIGN FIGURES (Refer to pg 122)

SECTION

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

SECTION AC LINE REACTORS

AC Line Reactors

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.

FEATURES

n Gapped iron core inductor–designed for optimum

performance while providing harmonics compensation.

n Precision wound copper coils–maximum protection from

short-circuiting.

n Finger-safe terminal blocks (up to 60 HP).

n Compact design–allows for more flexible installation.

n Amperage ratings of 2 to 600 amps

n Available in 3% and 5% impedance

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

n Covered under Acme’s 10-year limited warranty.

n UR and cUR Recognized.

n 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:

n Protection from damaging voltage drop.

n Elimination of nuisance tripping of drives or circuit

breakers.

n Reduction of motor current surges and power line spike

currents.

n Improvement in true power factor of capacitor input drives.

n Cooler, quieter operation.

n Reduction of harmonic distortion.

n Longer life for motors and solid state components.

AC LINE REACTORS DIMENSIONAL DRAWINGS

1-60 HP; 2-80 Amp 75-500 HP; 110-600 Amp

SECTION

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

SECTION AC LINE REACTORS

Applying Acme AC Line Reactors

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’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.

SECTION

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

SECTION AC LINE REACTORS

* Motor HP and Amp rated at 480 volts.

SELECTION CHARTS

GROUP B

480 VOLTS, 3% Z, 60 Hz (600 VOLTS, 2.4% Z; 240 VOLTS, 6% Z)

GROUP C

480 VOLTS, 5% Z, 60 Hz (600 VOLTS, 4% Z; 240 VOLTS, 10% Z )

MOTOR* REACTOR DIMENSIONS MOUNTING DIMENSIONS WEIGHT

CATALOG NO. HP AMP AMP uH H W D A (Depth) B (Width) (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)

MOTOR* REACTOR DIMENSIONS MOUNTING DIMENSIONS WEIGHT

CATALOG NO. HP AMP AMP uH H W D A (Depth) B (Width) (Lbs/Kg)

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) 3 (1.4)

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)

SECTION

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 - 5 5

Primary & Secondary Fuse Information .............54-55

Selection Charts ................................................59-64

Wiring Diagrams & Dimensions ..............................65

TB Series Open Core & Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 6 - 5 8

Primary & Secondary Fuse Information ..................57

Selection Charts ................................................59-64

Wiring Diagrams & Dimensions ..............................66

Harsh Environments Control Transformers .......67

AE/CE Series Encapsulated Transformers ..... 68-75

Selection Charts .................................................70-73

FINGER/GUARD®

Industrial Control Transformer ...........................76-79

Selection Charts ......................................................77

INDUSTRIAL

CONTROL

TRANSFORMERS

SECTION

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

SECTION 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 volt-

amperes—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. R e a d t o t h e f a r l e f t s i d e o f t h e c h a r t

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.

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.

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

TABLE 2. Typical Magnetic Motor Starter & Contactor Data 

60 Hz, 120 Volt, 3-Pole

Selecting Industrial Control Transformers

N.E.M.A. Size

Contactor 00 0 1 2 3 4 5

A L

500 Series — 192 192 240 660 1225 2040 1490 VA Inrush

Allen — 29 29 29 45 69 110 96 VA Sealed

Bradley 53 110 175 240 580 1000 1950 VA Inrush

K Series 15 20 22 31 43 65 98 VA Sealed

Heavy 85 85 100 150 490 900 1200 VA Inrush

ASEA Duty Series 9 9 11.5 15 35 55 65 VA Sealed

218 218 218 218 310 957 1518 VA Inrush

Furnas 25 25 25 25 26 75 116 VA Sealed

151 151 151 528 1152 1248 2580 VA Inrush

General Electric 24 24 24 60 83 86 191 VA Sealed

210 210 210 210 724 880 1790 VA Inrush

Joslyn Clark 18 18 18 18 30 39 295 VA Sealed

Siemens-Allis 76 76 76 194 365 530 1630 VA Inrush

(formerly ITE Gould) 12 12 12 21 35 40 110 VA Sealed

165 245 245 311 700 1185 2970 VA Inrush

Square D 33 27 27 37 46 85 212 VA Sealed

160 160 160 160 625 625 1700 VA Inrush

Westinghouse 25 25 25 25 50 50 180 VA Sealed

Cutler A1 Series 87 103 103 — — — 1158 VA Inrush

Hammer 15 20 20 — — — 100 VA Sealed

(Citation 102 103 103 140 390 1158 1158 VA Inrush

Line)

B1 Series 13 20 20 24 50 100 100 VA Sealed

Inrush VA @ 20% & 40% Power Factor

Nominal 85% Secondary Voltage 90% Secondary Voltage 95% Secondary Voltage

VA Rating

20% P.F. 40% P.F. 20% P.F. 40% P.F. 20% P.F. 40% P.F.

50 362 224 289 179 217 134

75 579 354 462 283 345 211

100 839 522 664 413 489 304

150 1326 842 1003 637 679 431

250 3447 2281 2462 1629 1477 977

300 3894 2618 2812 1890 1731 1163

350 5418 3689 3870 2635 2322 1581

500 6496 4575 4691 3304 2887 2033

750 8377 5811 5913 4102 3449 2393

1000 11329 9005 7789 6191 4248 3377

1500 25519 18803 18013 13273 10508 7742

2000 28178 21600 19372 14850 10566 8100

3000 34797 28391 24562 20041 14328 11690

5000 138500 84542 100000 61058 61550 37574

TABLE 1. Inrush VA

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

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.

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.

Integrally Mounted Fuse Blocks

Primary Fuse Kit with Snap-on

Secondary Fuse Block

Jumper Link Connections

Secondary Fuse Clips

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 con-

struction 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.

SECTION

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

5454

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

 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.

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.

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.

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.

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

mounting bracket.

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.

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.

TA Series Primary Fuse Kits

Instructions for TA Series Primary Fuse Kit

Type PL112706 & PL112707: Using 2 Class CC Dual Element Fuses (3000-5000 VA)

Type PL112700 Through PL112705:

Using 2 Class CC Dual Element Fuses (not supplied)

PRIMARY (H SIDE)

SECONDARY (X SIDE)

PRIMARY (H SIDE)

INPUT

SUPPLY

LINE

PRIMARY (H SIDE)

SECONDARY (X SIDE)

PRIMARY (H SIDE)

SECONDARY (X SIDE)

INPUT

SUPPLY

LINE

Figure 1

Figure 2

Primary Fuse Sizing Chart



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.

VA 120 V 208 V 230 V 240 V 277 V 380 V 416 V 440 V 460 V 480 V 550 V 600 V

50 1.2 0.6 0.6 0.6 0.6 0.3 0.3 0.3 0.3 0.3 0.3 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

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS



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

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.

3. Select the appropriate pair of jumpers for making the

connections between the secondary fuse block and the

secondary (X-side) of the transformer.

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)

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.

SECONDARY (X SIDE)

Figure 1

Figure 2

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

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)

Series

Connection

Parallel

Connection

Exception: 150 VA transformer TA232404 does not have

quick connect terminals.

TA Series Secondary Fuse Kits

Type PL112600, 601, 602: Use Dual Element Slow-Blow Fuse

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

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.

 Series-parallel connecting links save wiring and labor costs.

 Terminal blocks allow full access for ring terminals for easy

installation even with solid strand conductors.

 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.

APPLICATIONS

 Motor Starters

 Contactors

 Solenoids

 Timer Circuits

 Relays

 Control Panels

 Robotics

TB Series Open Core & Coil

Industrial Control Transformers

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

TB Series Primary Fuse Kits

Type PL112700 Through PL112705:

Using 2 Class CC Dual Element Fuses (not supplied)

Primary Fuse Sizing Chart

VA 120 V 208 V 230 V 240 V 277 V 380 V 416 V 440 V 460 V 480 V 550 V 600 V

50 1.2 0.6 0.6 0.6 0.6 0.3 0.3 0.3 0.3 0.3 0.3 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

Figure 2

 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.

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 1

Secondary Fuse Sizing Chart



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.

VA 24 V 85 V 91 V 99 V 100 V 110 V 115 V 120 V 125 V 130 V

50 VA 3.2 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 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

Fuse Kit adds approximately

1.75” to height of unit.

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

Catalog Number VA Type

PL79924* 50-1000 1/4" x 1-1/4"

PL79930 50-350 13/32" x 1-1/2"

PL79931 500-1000 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).

* PL79924: Use fuse kit on all transformers except 750 & 1000 VA

with 24 volt secondary.

Secondary

Fuse Kit

1. To attach secondary fuse kit PL 112603 to

p r i m a r y fuse kits PL112700 thru PL112705

snap the secondary single pole fuse block

o n t o t h e u n l a b e l e d s i d e o f t h e p r i m a r y d o u b l e

pole fuse block. (See Figure 1)

2. Install the fuse kits as instructed under the

p r i m a r y f u s e k i t i n s t r u c t i o n s o n p a g e 5 4 .

3. Select the appropriate pair of jumpers for

making the connections between the

secondary fuse block and the secondary

(X-side) of the transformer.

4. Connect the female quick-connect of the

j u m p e r s s u p p l i e d t o o n e o f t h e m a l e q u i c k -

c o n n e c t s o f t h e s e c o n d a r y f u s e b l o c k — o n e

j u m p e r t o e a c h e n d o f t h e f u s e b l o c k . ( S e e

F i g u r e 2 )

5. C o n n e c t t h e r i n g t e r m i n a l o f t h e j u m p e r s

supplied to screw terminals X1 and F or F1

o n t h e s e c o n d a r y ( X - s i d e ) o f t h e t r a n s f o r m e r .

6. Connect secondary load lines to terminals

X2 and F or F2.

Figure 1

Figure 2

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)

TB Series Secondary Fuse Kits

Type PL79924, PL79930, & PL79931: Use Dual Element Slow-Blow Fuse

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA & TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS



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



See chart for integrally mounted fuse block catalog number suffix.

120 X 240 PRIMARY VOLTS—12/24 SECONDARY VOLTS—1Ø, 50/60 Hz

GROUP A

SELECTION CHARTS

240 X 480, 230 X 460, 220 X 440 PRIMARY VOLTS—120/115/110 SECONDARY VOLTS—1Ø, 50/60 Hz

GROUP B

CATALOG VA OUTPUT APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY SECONDARY

NO.  RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK FUSE KIT  FUSE SIZE

@ 120V A B C D E F LBS. (KG.) PART NO. PART NO. 120 VOLTS

TB81210  50 0.42 4.23 3.00 2.70 2.50 2.13 .22 x .50 4 PL112700 * 6/10 amp

(10.7) (7.6) (6.8) (6.4) (5.4) (0.6 x 1.3) (1.8)

TB81201  75 0.63 4.74 3.00 2.70 2.50 2.61 .22 x .50 4 PL112700 * 1 amp

(12.0) (7.6) (6.8) (6.4) (6.6) (0.6 x 1.3) (1.8)

TB81211  100 0.83 4.90 3.00 2.70 2.50 2.81 .22 x .50 4 PL112700 * 1

1/4 amps

(12.4) (7.6) (6.8) (6.4) (7.1) (0.6 x 1.3) (1.8)

TB81212  150 1.25 5.00 3.75 3.40 3.13 2.81 .22 x .50 6 PL112701 * 2 amps

(12.7) (9.5) (8.6) (8.0) (7.1) (0.6 x 1.3) (2.7)

TB81213  250 2.08 4.18 4.50 3.84 3.75 3.13 .22 x .50 9 PL112702 * 3

2/10 amps

(10.6) (11.4) (9.8) (9.5) (8.0) (0.6 x 1.3) (4.1)

TB81200  300 2.50 5.57 4.50 3.84 3.75 3.13 .22 x .50 10 PL112702 * 4 amps

(14.1) (11.4) (9.8) (9.5) (8.0) (0.6 x 1.3) (4.5)

TB81214  350 2.92 6.32 4.50 3.84 3.75 3.83 .22 x .50 12 PL112702 * 4

1/2 amps

(16.1) (11.4) (9.8) (9.5) (9.7) (0.6 x 1.3) (5.4)

TB81215  500 4.17 6.30 5.25 4.47 4.06 3.81 .22 x .50 15 PL112704 * 6

1/4 amps

(16.0) (13.3) (11.4) (10.3) (9.7) (0.6 x 1.3) (6.8)

TB81216  750 6.25 6.65 5.25 4.47 4.38 5.13 .31 x .50 23 PL112704 * 10 amps

(16.9) (13.3) (11.4) (11.1) (13.0) (0.8 x 1.3) (10.4)

TB81217  1000 8.33 7.58 6.75 5.78 5.75 3.69 .31 x .50 25 PL112705 * 12 amps

(19.3) (17.1) (14.7) (14.6) (9.4) (0.8 x 1.3) (11.3)

CATALOG VA OUTPUT APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY

NO.  RATING AMPS Inches (Cm.) SHIP WEIGHT FUSE BLOCK FUSE SIZE

A B C D E F Lbs. (Kg.) PART NO. 24 VOLTS

TB181141  50 2.08 4.23 3.00 2.70 2.50 2.13 .22 x .50 4 PL112700 3 2/10 amps

(10.7) (7.6) (6.8) (6.4) (5.4) (0.6 x 1.3) (1.8)

TB181142  75 3.13 4.74 3.00 2.70 2.50 2.61 .22 x .50 4 PL112700 5 amps

(12.0) (7.6) (6.8) (6.4) (6.6) (0.6 x 1.3) (1.8)

TB181143  100 4.17 4.90 3.00 2.70 2.50 2.81 .22 x .50 4 PL112700 61/4 amps

(12.4) (7.6) (6.8) (6.4) (7.1) (0.6 x 1.3) (1.8)

TB181144  150 6.25 4.78 3.75 3.40 3.13 2.63 .22 x .50 6 PL112701 10 amps

(12.1) (9.5) (8.6) (8.0) (6.7) (0.6 x 1.3) (2.7)

TB181146  250 10.42 5.08 4.50 3.84 3.75 3.05 .22 x .50 9 PL112702 15 amps

(12.9) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.1)

TB181148  350 14.58 6.12 4.50 3.84 3.75 4.06 .22 x .50 13 PL112702 20 amps

(15.5) (11.4) (9.8) (9.5) (10.3) (0.6 x 1.3) (5.9)

TB181149  500 20.83 5.90 5.25 4.47 4.38 4.19 .31 x .50 16 PL112704 30 amps

(15.0) (13.3) (11.4) (11.1) (10.6) (0.8 x 1.3) (7.3)

TB181150 750 31.25 7.53 5.25 4.47 4.38 5.25 .31 x .50 24 PL112704 —

(19.1) (13.3) (11.4) (11.1) (13.3) (0.8 x 1.3) (10.9)

TB181151 1000 41.67 7.43 6.75 5.72 5.75 3.81 .31 x .50 26 PL112705 —

(18.9) (17.1) (14.5) (14.6) (9.7) (0.8 x 1.3) (11.8)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA & TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

ADD SUFFIX

TO CATALOG NO. 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)

* See fusing chart for secondary fuse kits.



Secondary Fuse Kit PL-112603 may be substituted for PL112600 thru PL112602 when Primary Fuse Kit is used. See page 58.



See chart for integrally mounted fuse block catalog number suffix.

240 X 480, 230 X 460, 220 X 440 PRIMARY VOLTS—120/115/110 SECONDARY VOLTS—1Ø, 50/60 Hz

GROUP B

Integrally Mounted Fuse Blocks Available:

(See Chart)

GROUP ‘A’ THROUGH 500 VA

GROUP ‘B’ THROUGH 2000 VA

Consult factory for other sizes available.

* See fusing chart for secondary fuse kits.

(CONTINUED)

240/480/600, 230/460/575, 220/440/550 PRIMARY VOLTS—120/100, 115/95, 110/90 SECONDARY VOLTS—

1Ø, 50/60 Hz

GROUP C

CATALOG VA OUTPUT APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY SECONDARY

NO.  RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK FUSE KIT  FUSE SIZE

@ 120V A B C D E F LBS. (KG.) PART NO. PART NO. 120 VOLTS

TA2-81218 1500 12.50 8.80 6.75 5.72 5.75 5.75 .31 x .50 43 PL112705 PL112601 15 amps

(22.4) (17.1) (14.5) (14.6) (14.6) (0.8 x 1.3) (19.5)

TA2-81219 2000 16.67 9.25 6.75 5.72 5.75 6.38 .31 x .50 49 PL112705 PL112601 20 amps

(23.5) (17.1) (14.5) (14.6) (16.2) (0.8 x 1.3) (22.2)

TA2-81220 3000 25.00 8.81 7.50 8.34 6.50 7.52 .41 x .81 70 PL112706 — —

(22.4) (19.1) (21.2) (16.5) (19.1) (1.0 x 2.1) (31.8)

TA281221 5000 41.67 7.52 11.92 9.49 6.75 6.25 .41 x .81 125 PL112707 — —

(19.1) (30.3) (24.1) (17.1) (15.9) (1.0 x 2.1) (56.7)

CATALOG VA OUTPUT APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY SECONDARY

NO. RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK FUSE KIT  FUSE SIZE

@ 120V A B C D E F LBS. (KG.) PART NO. PART NO. 120 VOLTS

TB81000 50 0.42 4.56 3.00 2.70 2.50 2.61 .22 x .50 4 PL112700 * 6/10 amp

(11.6) (7.6) (6.8) (6.4) (6.6) (0.6 x 1.3) (1.8)

TB81009 75 0.63 4.90 3.00 2.70 2.50 2.81 .22 x .50 4 PL112700 * 1 amp

(12.4) (7.6) (6.8) (6.4) (7.1) (0.6 x 1.3) (1.8)

TB81001 100 0.83 5.36 3.00 2.70 2.50 3.26 .22 x .50 5 PL112700 * 1

1/4 amps

(13.6) (7.6) (6.8) (6.4) (8.3) (0.6 x 1.3) (2.3)

TB81002 150 1.25 5.00 3.75 3.40 3.13 3.06 .22 x .50 7 PL112701 * 2 amps

(12.7) (9.5) (8.6) (8.0) (7.8) (0.6 x 1.3) (3.2)

TB81003 250 2.08 5.57 4.50 3.84 3.75 3.50 .22 x .50 11 PL112702 * 3

2/10 amps

(14.1) (11.4) (9.8) (9.5) (8.9) (0.6 x 1.3) (5.0)

TB81020 300 2.50 6.48 4.65 4.15 4.06 4.06 .22 x .50 15 PL112702 * 4 amps

(16.5) (11.8) (10.5) (10.3) (10.3) (0.6 x 1.3) (6.8)

TB81004 350 2.92 6.48 4.65 4.15 4.06 4.06 .22 x .50 15 PL112702 * 4

1/2 amps

(16.5) (11.8) (10.5) (10.3) (10.3) (0.6 x 1.3) (6.8)

TB81005 500 4.17 6.43 5.25 4.47 4.38 4.56 .31 x .50 21 PL112704 * 6

1/4 amps

(16.3) (13.3) (11.4) (11.1) (11.6) (0.8 x 1.3) (9.5)

TB81006 750 6.25 7.19 6.75 5.78 5.75 3.81 .31 x .50 25 PL112705 * 10 amps

(18.3) (17.1) (14.7) (14.6) (9.7) (0.8 x 1.3) (11.3)

TB81007 1000 8.33 7.96 6.75 5.78 5.75 4.63 .31 x .50 32 PL112705 * 12 amps

(20.2) (17.1) (14.7) (14.6) (11.8) (0.8 x 1.3) (14.5)

TA281008 1500 12.50 9.46 6.75 5.72 5.75 6.38 .31 x .50 47 PL112705 PL112601 15 amps

(24.0) (17.1) (14.5) (14.6) (16.2) (0.8 x 1.3) (21.3)

TA253929 2000 16.67 7.90 7.50 7.66 6.50 6.57 .41 x .81 55 PL112706 PL112601 20 amps

(20.1) (19.1) (19.5) (16.5) (16.7) (1.0 x 2.1) (24.9)

TA253930 3000 25.00 7.02 11.92 8.83 6.75 5.75 .41 x .81 75 PL112707 — —

(17.8) (30.3) (22.4) (17.1) (14.6) (1.0 x 2.1) (34.0)

TA253931 5000 41.67 7.52 11.92 9.49 6.75 6.25 .41 x .81 110 PL112707 — —

(19.1) (30.3) (24.1) (17.1) (15.9) (1.0 x 2.1) (49.9)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA & TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

208/277/380 PRIMARY VOLTS—115/95 SECONDARY VOLTS—1Ø, 50/60 Hz

GROUP E

* See fusing chart for secondary fuse kits.



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



See chart for integrally mounted fuse block catalog number suffix.

208/240/277/380/480 PRIMARY VOLTS—24 SECONDARY VOLTS—1Ø, 50/60 Hz

GROUP D

* See fusing chart for secondary fuse kits.

CATALOG VA OUTPUT APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY SECONDARY

NO. RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK FUSE KIT  FUSE SIZE

@ 115V A B C D E F LBS. (KG.) PART NO. PART NO. 115 VOLTS

TB81301 50 0.43 4.35 3.00 2.70 2.50 2.61 .22 x .50 4 PL112700 * 6/10 amp

(11.0) (7.6) (6.8) (6.4) (6.6) (0.6 x 1.3) (1.8)

TB81302 75 0.65 4.74 3.00 2.70 2.50 2.81 .22 x .50 4 PL112700 * 1 amp

(12.0) (7.6) (6.8) (6.4) (7.1) (0.6 x 1.3) (1.8)

TB81303 100 0.87 4.45 3.75 3.40 3.13 2.44 .22 x .50 5 PL112701 * 1

1/4 amps

(11.3) (9.5) (8.6) (8.0) (6.2) (0.6 x 1.3) (2.3)

TB81304 150 1.30 5.00 3.75 3.84 3.13 3.06 .22 x .50 5 PL112701 * 2 amps

(12.7) (9.5) (9.8) (8.0) (7.8) (0.6 x 1.3) (2.3)

TB81305 250 2.17 5.68 4.50 3.84 3.75 4.06 .22 x .50 13 PL112702 * 3

1/2 amps

(14.4) (11.4) (9.8) (9.5) (10.3) (0.6 x 1.3) (5.9)

TB81306 350 3.04 6.30 4.65 4.15 4.06 4.75 .22 x .50 18 PL112702 * 5 amps

(16.0) (11.8) (10.5) (10.3) (12.1) (0.6 x 1.3) (8.2)

TB81307 500 4.35 6.22 5.25 4.47 4.38 4.56 .22 x .50 20 PL112704 * 7 amps

(15.8) (13.3) (11.4) (11.1) (11.6) (0.6 x 1.3) (9.1)

TB81308 750 6.52 6.82 6.75 5.78 5.75 3.69 .31 x .50 24 PL112705 * 10 amps

(17.3) (17.1) (14.7) (14.6) (9.4) (0.8 x 1.3) (10.9)

TB81309 1000 8.70 7.96 6.75 5.72 5.75 4.44 .31 x .50 31 PL112705 * 12 amps

(20.2) (17.1) (14.5) (14.6) (11.3) (0.8 x 1.3) (14.1)

CATALOG VA OUTPUT APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY SECONDARY

NO. RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK FUSE KIT  FUSE SIZE

A B C D E F LBS. (KG.) PART NO. PART NO. 24 VOLTS

TB81321 50 2.08 4.08 3.75 3.40 3.13 2.19 .22 x .50 4 PL112701 * 3

2/10 amp

(10.4) (9.5) (8.6) (8.0) (5.6) (0.6 x 1.3) (1.8)

TB81322 75 3.13 4.31 3.75 3.40 3.13 2.31 .22 x .50 5 PL112701 * 5 amps

(10.9) (9.5) (8.6) (8.0) (5.9) (0.6 x 1.3) (2.3)

TB81323 100 4.17 4.52 3.75 3.40 3.13 2.63 .22 x .50 5 PL112701 * 6

1/4 amps

(11.5) (9.5) (8.6) (8.0) (6.7) (0.6 x 1.3) (2.3)

TB81324 150 6.25 4.75 4.50 3.84 3.75 3.05 .22 x .50 9 PL112702 * 10 amps

(12.1) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.1)

TB81325 250 10.42 5.24 4.65 4.15 4.06 3.25 .22 x .50 11 PL112702 * 15 amps

(13.3) (11.8) (10.5) (10.3) (8.3) (0.6 x 1.3) (5.0)

TB81326 350 14.58 6.02 5.25 4.47 4.38 4.00 .31 x .50 18 PL112704 * 20 amps

(15.3) (13.3) (11.4) (11.1) (10.2) (0.8 x 1.3) (8.2)

TB81327 500 20.83 6.51 5.25 4.47 4.38 4.19 .31 x .50 19 PL112704 * 30 amps

(16.5) (13.3) (11.4) (11.1) (10.6) (0.8 x 1.3) (8.6)

TB81328 750 31.25 7.08 6.75 5.78 5.75 3.81 .31 x .50 26 PL112705 * —

(18.0) (17.1) (14.7) (14.6) (9.7) (0.8 x 1.3) (11.8) 33 amps

TB81329 1000 41.67 8.10 6.75 5.72 5.75 4.63 .31 x .50 33 PL112705 * —

(20.6) (17.1) (14.5) (14.6) (11.8) (0.8 x 1.3) (15.0)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA & TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

GROUP G



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



Secondary fuse kit application for 115V only.

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

380/440/550/600 PRIMARY VOLTS—115/230 SECONDARY VOLTS—1Ø, 50/60 Hz

GROUP F

CATALOG VA OUTPUT

APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY

NO. RATING AMPS

INCHES (CM.) SHIP WEIGHT FUSE BLOCK FUSE SIZE 

@ 115V A B C D E F LBS. (KG.) PART NO. 115 VOLTS

TA254535 50 0.43 4.12 3.75 3.21 3.13 2.19 .22 x .50 4 PL112701 6/10 amp

(10.5) (9.5) (8.2) (8.0) (5.6) (0.6 x 1.3) (1.8)

TA254536 100 0.87 4.56 3.75 3.21 3.13 2.31 .22 x .50 5 PL112701 11/4 amps

(11.6) (9.5) (8.2) (8.0) (5.9) (0.6 x 1.3) (2.3)

TA254537 150 1.30 5.00 3.75 3.21 3.13 3.06 .22 x .50 10 PL112701 2 amps

(12.7) (9.5) (8.2) (8.0) (7.8) (0.6 x 1.3) (4.5)

TA254538 250 2.17 5.49 4.50 3.84 3.75 3.50 .22 x .50 11 PL112702 31/2 amps

(13.9) (11.4) (9.8) (9.5) (8.9) (0.6 x 1.3) (5.0)

TA281197 350 3.04 6.03 4.88 4.15 4.06 4.38 .22 x .50 17 PL112703 5 amps

(15.3) (12.4) (10.5) (10.3) (11.1) (0.6 x 1.3) (7.7)

TA254539 500 4.35 6.76 4.88 4.15 4.06 5.75 .22 x .50 23 PL112703 7 amps

(17.1) (12.4) (10.5) (10.3) (14.6) (0.6 x 1.3) (10.4)

TA281240 750 6.52 7.19 6.75 5.72 5.75 3.69 .31 x .50 25 PL112705 10 amps

(18.3) (17.1) (14.5) (14.6) (9.4) (0.8 x 1.3) (11.3)

TA281241 1000 8.70 7.77 6.75 5.72 5.75 4.44 .31 x .50 30 PL112705 12 amps

(19.7) (17.1) (14.5) (14.6) (11.3) (0.8 x 1.3) (13.6)

CATALOG VA OUTPUT

APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY SECONDARY

NO. RATING AMPS

INCHES (CM.) SHIP WEIGHT FUSE BLOCK FUSE KIT FUSE SIZE

@ 130V A B C D E F LBS. (KG.) PART NO. PART NO. 130 VOLTS

TB32403 50 0.38 4.08 3.75 3.40 3.13 2.31 .22 x .50 5 PL112701 NA 6/10 amp

(10.4) (9.5) (8.6) (8.0) (5.9) (0.6 x 1.3) (2.3)

TB32404 150 1.15 4.75 4.50 3.84 3.75 3.05 .22 x .50 10 PL112702 NA 16/10 amps

(12.1) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.5)

TB32405 250 1.92 5.58 4.65 4.15 4.06 4.06 .22 x .50 16 PL112702 NA 32/10 amps

(14.2) (11.8) (10.5) (10.3) (10.3) (0.6 x 1.3) (7.3)

TB32669 350 2.69 6.23 4.65 4.15 4.06 5.50 .22 x .50 22 PL112702 NA 4 amps

(15.8) (11.8) (10.5) (10.3) (14.0) (0.6 x 1.3) (10.0)

TB32406 500 3.85 6.40 6.75 5.78 5.75 3.69 .22 x .50 23 PL112705 NA 61/4 amps

(16.3) (17.1) (14.7) (14.6) (9.4) (0.6 x 1.3) (10.4)

TB54523 750 5.77 7.08 6.75 5.78 5.75 4.13 .31 x .50 29 PL112705 NA 9 amps

(18.0) (17.1) (14.7) (14.6) (10.5) (0.8 x 1.3) (13.2)

TB54524 1000 7.69 8.56 6.75 5.78 5.75 4.88 .31 x .50 35 PL112705 NA 12 amps

(21.7) (17.1) (14.7) (14.6) (12.4) (0.8 x 1.3) (15.9)

TA254525 1500 11.54 6.75 7.50 7.66 6.50 5.42 .41 x .81 55 PL112706 PL-112601 20 amps

(17.1) (19.1) (19.5) (16.5) (13.8) (1.0 x 2.1) (24.9)

TA281202 2000 15.39 7.45 7.50 7.66 6.50 6.12 .41 x .81 55 PL112706 PL-112601 25 amps

(18.9) (19.1) (19.5) (16.5) (15.5) (1.0 x 2.1) (24.9)

TA281203 3000 23.08 7.02 11.92 8.83 6.75 5.75 .41 x .81 70 PL112707 — —

(17.8) (30.3) (22.4) (17.1) (14.6) (1.0 x 2.1) (31.8)

TA281205 5000 38.46 7.52 11.92 9.49 6.75 6.25 .41 x .81 110 PL112707 — —

(19.1) (30.3) (24.1) (17.1) (15.9) (1.0 x 2.1) (49.9)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA & TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS



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

208/230/460 PRIMARY VOLTS—115 SECONDARY VOLTS—1Ø, 50/60 Hz

GROUP H

* See fusing chart for secondary fuse kits.

600 PRIMARY VOLTS—12/24 SECONDARY VOLTS—1Ø, 60 Hz

GROUP I

CATALOG VA OUTPUT

APPROX. DIMENSIONS APPROX. PRIMARY

NO. RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK

@ 12V A B C D E F LBS. (KG.) PART NO.

TA83300 50 4.17 4.13 3.00 2.59 2.50 2.30 .22 x .50 4 PL112700

(10.5) (7.6) (6.6) (6.4) (5.8) (0.6 x 1.3) (1.8)

TA83301 100 8.33 4.90 3.00 2.59 2.50 3.35 .22 x .50 4 PL112700

(12.4) (7.6) (6.6) (6.4) (8.5) (0.6 x 1.3) (1.8)

TA83302 150 12.50 4.92 3.75 3.21 3.13 2.81 .22 x .50 6 PL112701

(12.5) (9.5) (8.2) (8.0) (7.1) (0.6 x 1.3) (2.7)

TA83303 250 20.83 5.38 4.50 3.84 3.75 3.05 .22 x .50 9 PL112702

(13.7) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.1)

TA83304 500 41.67 6.06 4.88 4.15 4.06 4.06 .22 x .50 13 PL112703

(15.4) (12.4) (10.5) (10.3) (10.3) (0.6 x 1.3) (5.9)

TA83305 750 62.50 6.43 5.25 4.47 4.38 4.00 .31 x .50 21 PL112704

(16.3) (13.3) (11.4) (11.1) (10.2) (0.8 x 1.3) (9.5)

TA83306 1000 83.33 7.30 6.75 5.72 5.75 3.69 .31 x .50 24 PL112705

(18.5) (17.1) (14.5) (14.6) (9.4) (0.8 x 1.3) (10.9)

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

CATALOG VA OUTPUT

APPROX. DIMENSIONS APPROX. PRIMARY SECONDARY SECONDARY

NO. RATING AMPS

INCHES (CM.)

SHIP WEIGHT FUSE BLOCK FUSE KIT  FUSE SIZE

A B C D E F LBS. (KG.) PART NO. PART NO. 115 VOLTS

TB69300 50 0.43 4.44 3.00 2.70 2.50 2.61 .22 x .50 4 PL112700 * 6/10 amp

(11.3) (7.6) (6.8) (6.4) (6.6) (0.6 x 1.3) (1.8)

TB69301 100 0.87 5.21 3.00 2.70 2.50 3.26 .22 x .50 4 PL112700 * 1

4/10 amps

(13.2) (7.6) (6.8) (6.4) (8.3) (0.6 x 1.3) (1.8)

TB69302 150 1.30 5.10 3.75 3.40 3.13 3.06 .22 x .50 7 PL112701 * 2 amps

(13.0) (9.5) (8.6) (8.0) (7.8) (0.6 x 1.3) (3.2)

TB69303 250 2.17 5.38 4.50 3.84 3.75 3.50 .22 x .50 11 PL112702 * 3

1/2 amps

(13.7) (11.4) (9.8) (9.5) (8.9) (0.6 x 1.3) (5.0)

TB69304 350 3.04 5.90 4.65 4.15 4.06 3.81 .22 x .50 15 PL112702 * 5 amps

(15.0) (11.8) (10.5) (10.3) (9.7) (0.6 x 1.3) (6.8)

TB69305 500 4.35 6.22 5.25 4.47 4.38 4.56 .31 x .50 20 PL112704 * 7 amps

(15.8) (13.3) (11.4) (11.1) (11.6) (0.8 x 1.3) (9.1)

TB69306 750 6.52 6.82 6.75 5.78 5.75 3.81 .31 x .50 26 PL112705 * 10 amps

(17.3) (17.1) (14.7) (14.6) (9.7) (0.8 x 1.3) (11.8)

TB69307 1000 8.70 7.96 6.75 5.78 5.75 4.63 .31 x .50 33 PL112705 * 12 amps

(20.2) (17.1) (14.7) (14.6) (11.8) (0.8 x 1.3) (15.0)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA & TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

600 PRIMARY VOLTS—120/240 SECONDARY VOLTS—1Ø, 60 Hz

GROUP K

240 X 480 PRIMARY VOLTS—120/240 SECONDARY VOLTS—1Ø, 60 Hz

GROUP J

* See fusing chart for secondary fuse kits.

TA SERIES PROTECTIVE DEVICES – Secondary Fuse Kits

FOR USE WITH INDUSTRIAL CONTROL TRANSFORMERS THROUGH 1500 VA.

CATALOG NO. APPROX. SHIP WEIGHT Lbs. (Kg.)

PL112700 1 (0.5)

PL112701 1 (0.5)

PL112702 1 (0.5)

PL112703 1 (0.5)

PL112704 1 (0.5)

PL112705 1 (0.5)

PL112706 1 (0.5)

PL112707 1 (0.5)

TB SERIES PROTECTIVE DEVICES

– Secondary Fuse Kits

APPROX. SHIPPING WT.

CATALOG NO. VA DESCRIPTION (LBS./ KG.)

PL79924 Fuse Kit: Secondary Fuse 1/4" x 1-1/4" w/ARM 1.0 (0.5)

PL79928 50 – 350 Link: Small Jumper Links (Qty. 2) 1.0 (0.5)

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 & 1000 Fuse Kit: Secondary Fuse Midget w/ARM 1.0 (0.5)

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.)

PL112600 0.5 (0.2)

PL112601 0.5 (0.2)

PL112602 1 (0.5)

PL112603 1 (0.5)

CATALOG VA OUTPUT

APPROX. DIMENSIONS APPROX. PRIMARY

NO. RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK

@ 120V A B C D E F LBS. (KG.) PART NO.

TA83310 50 0.42 4.13 3.00 2.59 2.50 2.30 .22 x .50 4 PL112700

(10.5) (7.6) (6.6) (6.4) (5.8) (0.6 x 1.3) (1.8)

TA83311 100 0.83 4.90 3.00 2.59 2.50 3.35 .22 x .50 4 PL112700

(12.4) (7.6) (6.6) (6.4) (8.5) (0.6 x 1.3) (1.8)

TA83312 150 1.25 4.92 3.75 3.21 3.13 2.81 .22 x .50 6 PL112701

(12.5) (9.5) (8.2) (8.0) (7.1) (0.6 x 1.3) (2.7)

TA83313 250 2.08 5.38 4.50 3.84 3.75 3.05 .22 x .50 9 PL112702

(13.7) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.1)

TA83314 500 4.17 6.06 4.88 4.15 4.06 4.06 .22 x .50 13 PL112703

(15.4) (12.4) (10.5) (10.3) (10.3) (0.6 x 1.3) (5.9)

TA83315 750 6.25 6.43 5.25 4.47 4.38 4.00 .31 x .50 21 PL112704

(16.3) (13.3) (11.4) (11.1) (10.2) (0.8 x 1.3) (9.5)

TA83316 1000 8.33 7.34 6.75 5.72 5.75 3.69 .31 x .50 24 PL112705

(18.6) (17.1) (14.5) (14.6) (9.4) (0.8 x 1.3) (10.9)

CATALOG VA OUTPUT

APPROX. DIMENSIONS APPROX. PRIMARY

NO. RATING AMPS INCHES (CM.) SHIP WEIGHT FUSE BLOCK

@ 120V A B C D E F LBS. (KG.) PART NO.

TB83210 50 0.42 4.13 3.00 2.70 2.50 2.30 .22 x .50 4 PL112700

(10.5) (7.6) (6.8) (6.4) (5.8) (0.6 x 1.3) (1.8)

TB83212 100 0.83 4.90 3.00 2.70 2.50 3.35 .22 x .50 4 PL112700

(12.4) (7.6) (6.8) (6.4) (8.5) (0.6 x 1.3) (1.8)

TB83213 150 1.25 4.92 3.75 3.40 3.13 2.81 .22 x .50 6 PL112701

(12.5) (9.5) (8.6) (8.0) (7.1) (0.6 x 1.3) (2.7)

TB83215 250 2.08 5.38 4.50 3.84 3.75 3.05 .22 x .50 9 PL112702

(13.7) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.1)

TB83218 500 4.17 6.06 5.25 4.47 4.06 4.06 .22 x .50 13 PL112704

(15.4) (13.3) (11.4) (10.3) (10.3) (0.6 x 1.3) (5.9)

TB83219 750 6.25 6.43 5.25 4.47 4.38 5.30 .31 x .50 21 PL112704

(16.3) (13.3) (11.4) (11.1) (13.0) (0.8 x 1.3) (9.5)

TB83220 1000 8.33 7.34 6.75 5.78 5.75 3.69 .31 x .50 24 PL112705

(18.6) (17.1) (14.7) (14.6) (9.4) (0.8 x 1.3) (10.9)

TA83221 1500 12.50 8.80 6.75 5.72 5.75 5.02 .31 x .50 43 PL112705

(22.4) (17.1) (14.5) (14.6) (12.8) (0.8 x 1.3) (19.5)

TA83222 2000 16.67 9.15 6.75 5.72 5.75 5.42 .31 x .50 48 PL112705

(23.2) (17.1) (14.5) (14.6) (13.8) (0.8 x 1.3) (21.8)

TA83223 3000 25.00 7.00 7.50 7.66 6.50 5.55 .41 x .81 51 PL112706

(17.8) (19.1) (19.5) (16.5) (14.1) (1.0 x 2.1) (23.1)

TA83224 5000 41.67 7.06 11.92 8.75 6.75 5.75 .41 x .81 90 PL112707

(17.9) (30.3) (22.2) (17.1) (14.6) (1.0 x 2.1) (40.8)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

TA Series Open Core & Coil Wiring Diagrams

Group A Group B Group C

X2 X1

24V

H1 H2

240V 120V

H3 H4 H1 H2

H3 H4

X2 X1

120V

115

110

H1 H2

480V

460

440

H3 H4 H1 H2

H3 H4

240V

230

220

100V

240V

230

220

H2 H3

600V

575

550

120V

115

110

480V

460

440

X2 X1

240V

208V

H6H1

24V

277V

380V

480V

95V

277V

208V

H4H2 H3

380V

115V

X4 X2 X3 X1

230V 115V

600V

380V

440V H3

550V

230V

208V

H4H1

460V

115V

X4 X2 X3 X1

24V 12V

600V

Group D

Group E Group F Group G Group H

Group I Group J Group K

H1 H2

480V 240V

H3 H4

H1 H3 H2 H4

H1 H2

H3 H4

X4 X2 X3 X1

240V 120V

X4 X2 X3 X1

240V 120V

600V

50 VA Thru 2 kVA 3 & 5 kVA

D F

TA Series Open Core & Coil Dimensional Drawings

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION

TB SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

TB Series Open Core & Coil Dimensional Drawings

TB Series Open Core & Coil Wiring Diagrams

Group A Group B Group C

120V

H1 H2

240V

H3 H4

H1 H3 H2 H4

H1 H2

H3 H4

X4 X2 X3 X1

12V 24V

X2 X1

120V

115

110

H1 H2

480V

460

440

H3 H4 H1 H2

H3 H4

240V

230

220

100V

240V

230

220

H2 H3

600V

575

550

120V

115

110

480V

460

440

X2 X1

240V

208V

H6H1

24V

277V

380V

480V

95V

277V

208V

H4H2 H3

380V

115V

230V

208V

H4H1

460V

115V

Group D

Group E Group G Group H Group J

H1 H2

480V 240V

H3 H4

H1 H3 H2 H4

H1 H2

H3 H4

X4 X2 X3 X1

240V 120V

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION INDUSTRIAL CONTROL TRANSFORMERS



See page 70 for electrical diagram.



See page 58 for fuse sizing information.



For secondary fuse size, multiply output amps x 1.25.

240/480/600 PRIMARY VOLTS

—120/100

Secondary Volts

—1Ø,

50/60 Hz

240 x 480 PRIMARY VOLTS

—

120 SECONDARY VOLTS

—1Ø,

50/60 Hz

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.

Industrial Control Transformers for

Harsh Environments

Designed for Control Panels where Internal

Installation of Control Transformers is prohibited.

Encapsulated

1000 VA–10000 VA

GROUP L

GROUP M

APPROX. DIMENSIONS APPROX. SHIP

ELECTRICAL

CATALOG VA OUTPUT

INCHES (CM.) WEIGHT CONNECTION

NO. RATING AMPS H W D LBS. (KG.) DIAGRAM

 

T153929 2000 16.67 14.77 10.31 7.13 80 C

(37.5) (26.2) (18.1) (36.3)

T153930 3000 25.00 13.85 13.25 10.19 130 C

(35.2) (33.7) (25.9) (59.0)

T153931 5000 41.67 13.85 13.25 10.19 140 C

(35.2) (33.7) (25.9) (63.5)

APPROX. DIMENSIONS APPROX. SHIP

ELECTRICAL

CATALOG VA OUTPUT

INCHES (CM.) WEIGHT CONNECTION

NO. RATING AMPS H W D LBS. (KG.) DIAGRAM

 

T181217 1000 8.33 13.10 10.31 7.13 55 B

(33.3) (26.2) (18.1) (24.9)

T181219 2000 16.67 14.77 10.31 7.13 80 B

(37.5) (26.2) (18.1) (36.3)

T181220 3000 25.00 14.77 10.31 7.13 100 B

(37.5) (26.2) (18.1) (45.4)

T181221 5000 41.67 13.85 13.25 10.19 140 B

(35.2) (33.7) (25.9) (63.5)

T181223 10000 83.3 16.47 13.88 12.94 308 B

(41.8) (35.3) (32.9) (139.7)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE SERIES INDUSTRIAL CONTROL 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.

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.

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.

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.

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE SERIES INDUSTRIAL CONTROL TRANSFORMERS

Integrally mounted fuse blocks

available in standard and touch-proof

(CE Series) style.

Dual labels for

identification

of fused modules

Integrally molded terminal blocks with

combination slotted/phillips screws. Isolation barriers

protect against arc over while able to accommodate

a full ring terminal.

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.

FEATURES

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE INDUSTRIAL CONTROL TRANSFORMERS

120 x 240 PRIMARY VOLTS—24 SECONDARY VOLTS –– 1Ø, 50/60 Hz

240 x 480 PRIMARY VOLTS—24 SECONDARY VOLTS –– 1Ø, 50/60 Hz

SELECTION CHARTS AE SERIES

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

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

50 AE020050 3.28 (8.3) 3.00 (7.6) 2.78 (7.0) 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)

GROUP I

GROUP II

GROUP III

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

50 AE010050 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) 2.50 (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)

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

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)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE SERIES INDUSTRIAL CONTROL TRANSFORMERS

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

208/230/460 PRIMARY VOLTS –– 115 SECONDARY VOLTS –– 1Ø, 50/60 Hz

GROUP VI

GROUP VII

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F 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)

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

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)

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

GROUP XII

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

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 • acmetransformer.com

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE SERIES INDUSTRIAL CONTROL TRANSFORMERS

240 x 480 PRIMARY VOLTS –– 24 SECONDARY VOLTS –– 1Ø, 50/60 Hz

GROUP IIIC

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

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)

SELECTION CHARTS CE SERIES

120 x 240 PRIMARY VOLTS –– 24 SECONDARY VOLTS –– 1Ø, 50/60 Hz

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

GROUP IC

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

50 CE010050 2.69 (6.8) 3.00 (7.6) 2.81 (7.1) 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

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F 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)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE SERIES INDUSTRIAL CONTROL TRANSFORMERS

380/400/415 PRIMARY VOLTS –– 110/220 SECONDARY VOLTS –– 1Ø, 50/60 Hz

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

GROUP IVC

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

50 CE040050 3.53 (8.9) 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)

100 CE040100 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)

150 CE040150 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)

250 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)

350 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)

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

50 CE050050 4.03 (10.2) 3.41 (8.6) 3.09 (7.8) 2.47 (6.2) 2.81 (7.1) .20 x .40 (0.5 x 1.0) 2.7 (1.2)

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)

GROUP VC

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

GROUP VIC

VA APPROX. DIMENSIONS INCHES (CM.) MOUNTING SLOT APPROX.

RATING CATALOG NUMBER A B C D E F SHIPPING WT

50 CE060050 3.41 (8.6) 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)

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 • acmetransformer.com

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE INDUSTRIAL CONTROL TRANSFORMERS

RECOMMENDED RATING FOR CURRENT LIMITING MIDGET 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.

RECOMMENDED RATING FOR CURRENT LIMITING CLASS CC FUSES

FUSE SIZING CHARTS

PRIMARY FUSE SIZING CHARTS

SECONDARY FUSE SIZING CHARTS

CONNECTION DETAILS FOR AE05 & CE05

VA 120 V 208 V 230 V 240 V 277 V 380 V 416 V 440 V 460 V 480 V 550 V 600 V

50 1.2 0.6 0.6 0.6 0.6 0.3 0.3 0.3 0.3 0.3 0.3 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

VA 24 V 85 V 91 V 99 V 100 V 110 V 115 V 120 V 125 V 130 V

50 VA 3.2 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 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

H1-H2 H1-H3 H1-H4 X1-X2 X1-X3 X1-X4

208 85 100 110

220 380 440 91 110 120

230 400 460 95 115 125

240 416 480 99 120 130

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION AE/CE INDUSTRIAL CONTROL TRANSFORMERS

WIRING FOR AE01 & CE01 WIRING FOR AE02 & CE02 WIRING FOR AE03 & CE03 WIRING FOR CE04

WIRING FOR AE05 & CE05 WIRING FOR AE06 & CE06 WIRING FOR AE07 WIRING FOR AE12

X2 X1

24V

H1 H2

240V 120V

H3 H4 H1 H2

H3 H4

208

200

H2 H3

480

460

440

240

230

220

X2 X1

120

115

110

X3 X2 X1

24V

H1 H2

480V

460

440

H3 H4 H1 H2

H3 H4

240V

230

220

X4 X3

220V

X2 X1X4 X3

X2 X1

110V

380

H2 H3

415

400

X2 X1

99V

416V

400

380

240V

230

220

208

H2 H3H1

X4 X3

480V

460

440

130V

125

120

110

120V

115

110

100

X2 X1

120V

115

110

H1 H2

480V

460

440

H3 H4 H1 H2

H3 H4

240V

230

220

230V

208V

H4H1

460V

115V

100V

9 5

9 0

240V

230

220

H2 H3

600V

575

550

120V

115

110

480V

460

440

FUSE KITS & ACCESSORIES

AE & CE Series Wiring Diagrams

AE & CE Series Dimensional Drawings

CATALOG NUMBER VA DESCRIPTION APPROX. SHIPPING WT. (Lbs./ Kg.)

PL79920 50-750

Fuse Kit: Primary Fuse Block EIC Series

1.0 (0.5)

(2 Class CC Blocks)

PL79921 150-750

Fuse Kit: Primary & Secondary Fuse Block EIC Series

1.0 (0.5)

(2 Class CC and 1 Midget Blocks)

PL79922

50-750 Fuse Kit: Primary Fuse Block EIC Series

1.0 (0.5)

CE Listed w/ Covers (2 Class CC Blocks)

PL79923 Fuse Kit: Primary & Secondary Fuse Block EIC Series

1.0 (0.5)

150-750 CE Listed w/ Covers (2 Class CC and 1 Midget Blocks)

PL79924 Fuse Kit: Secondary Fuse 1/4” x 1-1/4” w/ARM 1.0 (0.5)

PL79925 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)

PL79927 Cover: Fuse Block Covers (Qty. 1) 1.0 (0.5)

PL79928 50–350 Link: Small Jumper Links (Qty. 2) 1.0 (0.5)

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)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION 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.

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 slip -

on plastic covers to be broken, lost or

misplaced.

All FINGER/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.

FEATURES

 Constructed with high quality silicon

s t e e l l a m i n a t i o n t o m i n i m i z e c o r e

l o s s e s a n d i n c r e a s e e f f i c i e n c y .

 Designs incorporate precision wound

coils for improved regulation.

 Copper windings on all groups.

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

 130°C (Class B) Insulation 80°C

temperature rise.

 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.

FINGER/GUARD® Industrial Control Transformers

CE Marking

(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.

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

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

• Electromagnetic Compatibility (EMC) Directive, 89/336/EEC effective

• January 1, 1996

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.

Durable molded plastic

terminal is designed for

protection against contact

with live components

Easy to read nameplate

clearly identifies

important data

Wide range of primary and

secondary voltages

Easy access front opening in

terminal makes for fast wire

connections with one screw

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

CATALOG VA EUROPEAN* APPROX. DIMENSIONS INCHES (CM.) APPROX.

NO. RATING RATING A B C D E F SHIP WEIGHT LBS. (Kg.)

FS150

FS175

FS1100

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) .31 x .50 (0.8 x 1.3) 26 (11.8)

SECTION FINGER/GUARD® INDUSTRIAL CONTROL TRANSFORMERS

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

240 X 480, 230 X 460, 220 X 440 PRIMARY VOLTS—120/115/110 SECONDARY VOLTS—50/60 Hz

120 X 240 PRIMARY VOLTS—24 SECONDARY VOLTS—50/60 Hz

SELECTION CHARTS

GROUP A

GROUP B

GROUP C

CATALOG VA EUROPEAN* APPROX. DIMENSIONS INCHES (CM.) APPROX.

NO. RATING RATING A B C D E F 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)

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) 22 (10.0)

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)

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) 51 (23.1)

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)

Reference Group IC (CE01):

CE Series Industrial Control Transformers

50-750 VA

See Pg 72

Reference Group VIC (CE06):

CE Series Industrial Control Transformers

50-750 VA

See Pg 73

CATALOG VA EUROPEAN* APPROX. DIMENSIONS INCHES (CM.) APPROX.

NO. RATING RATING A B C D E F SHIP WEIGHT LBS. (Kg.)

FS250

FS275

FS2100

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)

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION FINGER/GUARD® INDUSTRIAL CONTROL TRANSFORMERS

PRIMARY FUSE SIZING CHARTS

RECOMMENDED RATING FOR CURRENT LIMITING 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.

CONNECTION DETAILS FOR GROUP C

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

FUSE KITS–FOR FINGER/GUARD® INDUSTRIAL CONTROL TRANSFORMERS

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

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

VA 120 V 208 V 230 V 240 V 277 V 380 V 416 V 440 V 460 V 480 V 550 V 600 V

50 1.2 0.6 0.6 0.6 0.6 0.3 0.3 0.3 0.3 0.3 0.3 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

VA 24 V 85 V 91 V 99 V 100 V 110 V 115 V 120 V 125 V 130 V

50 VA 3.2 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 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

SECONDARY FUSE SIZING CHARTS

RECOMMENDED RATING FOR CURRENT LIMITING MIDGET FUSES

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION FINGER/GUARD® INDUSTRIAL CONTROL TRANSFORMERS

X2 X1

24V

H1 H2

240V 120V

H3 H4 H1 H2

H3 H4

X2 X1

120V

115

110

H1 H2

480V

460

440

H3 H4 H1 H2

H3 H4

240V

230

220

GROUP A GROUP B GROUP C

FINGER/GUARD® Wiring Diagrams

3 kVA

50 VA Thru 2 kVA

FINGER/GUARD® Dimensional Drawings

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

SECTION

TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS

SECTION FINGER/GUARD® INDUSTRIAL CONTROL TRANSFORMERS

NOTES

General Purpose ................................................ 84

Buck - Boost ....................................................... 85

Wiring Diagrams ................................................ 86

LOW VOLTAGE/

LIGHTING

TRANSFORMERS

SECTION 6

SECTION

LOW VOLTAGE LIGHTING TRANSFORMERS & POWER SUPPLIES

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

SECTION

LOW VOLTAGE LIGHTING TRANSFORMERS

Why Low Voltage?

Acme’s Low Voltage Lighting

products provide a safe, long last-

ing, 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

 More light intensity per watt

 Less radiated heat

 Greater efficiency

 Longer life

 Safer to use

 Easy installation

 A high return on end-user

investment

Low Voltage Lighting

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

More value

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.

More Power

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!

Acme Advantages

More protection

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.

Features & Options

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.

SECTION

LOW VOLTAGE LIGHTING TRANSFORMERS & POWER SUPPLIES

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

SECTION

LOW VOLTAGE LIGHTING TRANSFORMERS

TRANSFORMERS

GROUP V GROUP VI

Buck–Boost

Features/Options ‘T1’ ‘T1’ and ‘T2”

Catalog No. Catalog No.

100 .05

Ratings through through

(Watts, VA, kVA) 1000 VA 10 kVA

120 Volts or 120 x 240

Primary Input 240 Volts Volts

Secondary

Output 12V or 24V 12 x 24 V

Hardwired Primary Yes Yes

Auto Thermal Reset No

Overload Primary

Protection:

Secondary Circuit

Breakers No

Output Copper Copper

Wiring Lead Wires Lead Wires

UL Listed Yes Yes

CSA Certified Yes Yes

Faraday Yes No

Shield

Product

10 Years 10 Years

Warranty

UL-3R

Indoor/Outdoor No Yes

Enclosure

SELECTION GUIDE

SECTION

LOW VOLTAGE LIGHTING TRANSFORMERS & POWER SUPPLIES

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

SECTION

LOW VOLTAGE/ LIGHTING TRANSFORMERS

Low Voltage General Purpose Transformers

FEATURES

 UL Listed , CSA Certified.

 100, 150, 300, 600, 750, 1000 VA.

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

 12 or 24 volt output.

 Input Auto-Thermal reset switch.

 Output circuit breaker.

 Fully encapsulated core and coil.

 Full fault current carrying Faraday Shield.

 Flexible copper leadwire terminations.

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

 UL Type 2 enclosure.

 Keyhole slotted wall mounting brackets.

 Black finish.

 Bottom access.

 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.

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

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

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

GROUP V

APPROX. DIMENSIONS APPROX.

VA CATALOG NO. INCHES (CM.) SHIP WEIGHT CB RATING CB STYLE

HEIGHT WIDTH DEPTH 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

APPROX. DIMENSIONS APPROX.

VA CATALOG NO. INCHES (CM.) SHIP WEIGHT CB RATING CB STYLE

HEIGHT WIDTH DEPTH LBS. (KG.)

100 T179605S 9.01 (22.9) 4.08 (10.4) 3.88 (9.9) 7 (3.2) 7 AMP Push To Reset Thermal Breaker

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

APPROX. DIMENSIONS APPROX.

VA CATALOG NO. INCHES (CM.) SHIP WEIGHT CB RATING CB STYLE

HEIGHT WIDTH DEPTH LBS. (KG.)

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

SECTION

LOW VOLTAGE LIGHTING TRANSFORMERS & POWER SUPPLIES

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

SECTION

LOW VOLTAGE/ LIGHTING TRANSFORMERS

Buck-Boost Transformers

The No-Frills Low

Voltage Lighting

Buck-Boost Transformers offer a no-

frills approach to low voltage lighting.

(See Chart Below) A typical Buck-

Boost 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 autotrans-

former. For more information on Buck-

Boost Transformers, refer to the next

section in this catalog.

120 x 240 VOLT INPUT– 12/24 VOLT OUTPUT – 1Ø, 60 Hz

GROUP VI

INSULATING SECONDARY MAXIMUM

APPROX. DIMENSIONS APPROX.

CATALOG TRANSFORMER CURRENT OUTPUT INCHES (CM.) NET WEIGHT

NUMBER RATING 12V 24V HEIGHT WIDTH DEPTH LBS. (KG.)

T181047 0.05 kVA 4.16 2.08 6.38 (16.2) 3.19 (8.1) 3.00 (7.6) 4 (1.8)

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)

SECTION

LOW VOLTAGE LIGHTING TRANSFORMERS & POWER SUPPLIES

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

SECTION

LOW VOLTAGE/ LIGHTING TRANSFORMERS

VOLTAGE DROP FORMULA

Total Watts on Cable

X Length of Run

Cable Size Constant

= Voltage Drop

GROUP VI

Low Voltage Lighting Wiring Diagrams

120V

12V

120V

24V

240V

12V

240V

24V

X1 X2 X3 X4

120V

INPUT

H4 H1

H3 H2

12V

OUTPUT

X1 X2 X3 X4

240V

INPUT

12V

OUTPUT

H2H3H4

X1 X2 X3 X4

120V

INPUT

H4 H1

H3 H2

24V

OUTPUT

X1 X2 X3 X4

240V

INPUT

24V

OUTPUT

H2H3H4

GROUP V

VOLTAGE DROP CHART

Voltage Life Expectancy % of Rated

at Lamp of Lamp Candlepower

13.2 2/3 Rated Life 350

12.6 3/4 Rated Life 180

12.0 As Rated 100

11.5 2X Rated Life 80

11.0 3X Rated Life 74

10.5 5X Rated Life 65

10.0 9X Rated Life 50

CABLE SIZE CONSTANT CHART

Cable Cable Size

Size Constant

#18 1380

#16 2200

#14 3500

#12 7500

#10 11,920

#8 18,960

#6 30,150

SECTION

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 ................................... 89-93

Selection Charts – Single Phase .................. 94-96

Selection Charts – Three Phase ................... 97-99

Specifications .................................................. 100

Wiring Diagrams ....................................... 101-102

BUCK-BOOST

TRANSFORMERS

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS

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.

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.”

Where Are Buck-Boost

Transformers Used?

T211688 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.

ADVANTAGES

More efficient

Smaller & lighter

5-10 times increase

in kVA

Versatile, many

applications

Lower cost

DISADVANTAGES

No circuit isolation

Cannot create a

neutral

Application voltages

and kVA don‘t match

the nameplate

voltages and kVA

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION 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 air-

conditioner 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.

Buck-boost transformers are shipped ready to be connected

for a number of possible voltage combinations.

OUTPUT

INPUT

OUTPUT

INPUT

H1 X1

OUTPUT

INPUT H2

Questions & Answers About Buck-Boost Transformers

How Low Voltage Affects Various

Equipment Operations and Functions

150%

140%

130%

120%

110%

100%

90%

80%

70%

60%

50%

901/2%

81%

72%

105%

111%

117%

84%

70%

57%

111%

123%

138%

901/2%

81%

72%

Increase of Motor

Temperature and

Corresponding Insulation Life

Expectancy Loss

Increase of Motor Winding

Current Requirements in

Induction Motor Loads

Decrease in Motor Torque

Output

Decrease of

Incandescent

Lighting Output

Decrease of Heat Output in

Resistive Heating Loads

= 5% Low Voltage

= 10% Low Voltage

= 15% Low Voltage

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”.

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.

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS

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

3. What is the difference between a buck-

boost transformer and an autotransformer?

When a primary lead wire and secondary lead wire of a buck-

boost transformer are connected together electrically, in a

recommended voltage bucking or boosting connection, the

transformer is in all respects, an auto transformer. However,

if the inter connection 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 oper-

ate 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 commer-

cial and industrial air conditioning systems; boosting 110V to

120V and 240V to 277V for lighting systems; voltage correc-

tion 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 name-

plate kVA rating is the transformer’s capacity.

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 autotrans-

former 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 trans-

former 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).

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

(1 kVA) T111683 (7.5 kVA) T2535153S

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION 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

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.

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.

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

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.

3 PHASE CONNECTIONS

INPUT

(SUPPLY SYSTEM)

DELTA

3 wire

OPEN DELTA

3 wire

WYE

3 or 4 wire

WYE

4 wire

WYE

3 or 4 wire

CLOSED DELTA

3 wire

DESIRED OUTPUT

CONNECTION

WYE

3 or 4 wire

WYE

3 or 4 wire

CLOSED DELTA

3 wire

WYE

3 or 4 wire

OPEN DELTA

3 wire

OPEN DELTA

3 wire

DO NOT USE

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS

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.

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.

National Electrical Code

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.

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.

Consequently, an autotransformer is smaller, lighter in weight,

and less costly than a comparable kVA size insulating

transformer.

Please refer to Question 27 for additional information on auto-

transformers.

Buck-boost transformers are frequently field-connected as

auto transformers.

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.

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.

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

(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.

400 VOLTS

LINE TO GROUND

(POTENTIAL SAFETY

HAZARD)

480V

INPUT

240V OUTPUT

LINE TO LINE

PRIMARY

(INPUT)

PRIMARY

(INPUT)

SECONDARY

(OUTPUT)

SECONDARY

(OUTPUT)

AUTOTRANSFORMER

ISOLATION

TRANSFORMER

(ALSO CALLED

“INSULATING TRANSFORMER”)

SHUNT WINDING(S)

Diagram 450-4

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS

Exception: Where the rated input current of an

autotransformer is 9 am peres 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.

(b) Transformer Field-Connected as an Autotransformer.

A transformer field-connected as an autotransformer shall

be identified for use at elevated voltage.

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.

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.

Full Load Input Amps =

9,580 Volt Amps = 46 Amps

208 Volts

When the full load current is greater than 9 amps, the

overcurrent protective device (usually a fuse or non-

adjustable 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

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.

Steps for Selecting the Proper Buck-Boost Transformer

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 left-

hand 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.

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS

 See chart on page 101, for number of leads per termination.

NOTE: Inputs and Outputs may be re versed; 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.

GROUP I

SELECTION CHARTS

SINGLE PHASE

SINGLE PHASE BOOSTING

Line Voltage 95 100 105 110 189 208 215 220

(Available)

Load Voltage 114 120 115 120 208 230 237 242

(Output)

CAT. NO.

Load kVA 0.24 0.25 0.48 0.50 0.43 0.48 0.49 0.50

T181047 Amps 2.08 2.08 4.17 4.17 2.08 2.08 2.08 2.08

Max. Size of 6 6 10 10 6 6 6 6

Fuse or Breaker

Load kVA 0.47 0.50 0.96 1.01 0.87 0.96 0.99 1.01

T181048 Amps 4.17 4.17 8.33 8.33 4.17 4.17 4.17 4.17

Max. Size of 10 10 15 15 10 10 10 10

Fuse or Breaker

Load kVA 0.71 0.75 1.43 1.51 1.30 1.43 1.48 1.51

T181049 Amps 6.25 6.25 12.50 12.50 6.25 6.25 6.25 6.25

Max. Size of 15 15 20 20 15 15 15 15

Fuse or Breaker

Load kVA 1.19 1.25 2.40 2.50 2.16 2.39 2.46 2.52

T181050 Amps 10.42 10.40 20.80 20.80 10.40 10.40 10.40 10.40

Max. Size of 25 25 40 30 15 15 15 15

Fuse or Breaker

Load kVA 2.37 2.50 4.80 5.00 4.33 4.79 4.93 5.04

T181051 Amps 20.83 20.83 41.67 41.67 20.83 20.83 20.83 20.83

Max. Size of 35 35 60 60 30 30 30 30

Fuse or Breaker

Load kVA 3.56 3.75 7.17 7.56 6.50 7.19 7.41 7.56

T181052 Amps 31.25 31.25 62.50 62.50 31.25 31.25 31.25 31.25

Max. Size of 50 50 90 90 45 45 45 45

Fuse or Breaker

Load kVA 4.75 5.00 9.58 10.00 8.66 9.58 9.87 10.00

T111683 Amps 41.67 41.67 83.31 83.31 41.67 41.67 41.67 41.67

Max. Size of 70 70 125 125 60 60 60 60

Fuse or Breaker

Load kVA 7.12 7.50 14.40 15.10 13.00 14.30 14.80 15.10

T111684 Amps 62.50 62.50 125.00 125.00 62.50 62.50 62.50 62.50

Max. Size of 100 100 175 175 90 90 90 90

Fuse or Breaker

Load kVA 9.50 10.00 19.20 20.20 17.30 19.16 19.70 20.10

T111685 Amps 83.30 83.30 166.60 166.60 83.30 83.30 83.30 83.30

Max. Size of 125 125 250 250 125 125 125 125

Fuse or Breaker

Load kVA 14.20 15.00 28.80 30.00 26.00 28.70 29.60 30.30

T111686 Amps 125.00 125.00 250.00 250.00 125.00 125.00 125.00 125.00

Max. Size of 200 200 350 350 175 175 175 175

Fuse or Breaker

Load kVA 23.70 25.00 47.90 50.00 43.30 47.80 49.30 50.30

T111687 Amps 208.00 208.00 416.60 416.60 208.00 208.00 208.00 208.00

Max. Size of 350 350 600 600 300 300 300 300

Fuse or Breaker

Load kVA 35.60 37.50 71.90 75.60 65.00 71.80 74.00 75.60

T211688  Amps 312.50 312.50 625.00 625.00 312.50 312.50 312.50 312.50

Max. Size of 500 500 1000 1000 450 450 450 450

Fuse or Breaker

Load kVA 47.50 50.00 95.80 100.00 86.60 95.80 98.70 101.00

T211689  Amps 416.60 416.60 833.30 833.30 416.60 416.60 416.60 416.60

Max. Size of 700 700 1200 1200 600 600 600 600

Fuse or Breaker

See Page 110 For Connection Diagrams D D C C H H H H

BUCKING

125 132 230 245 250 252

113 120 208 222 227 240

0.52 0.54 0.47 0.50 0.52 1.02

4.60 4.60 2.28 2.28 2.28 4.37

10 10 6 6 6 10

1.04 1.08 0.95 1.00 1.04 2.04

9.20 9.20 4.56 4.56 4.58 8.75

15 15 10 10 10 15

1.56 1.62 1.42 1.50 1.56 3.00

13.80 13.80 6.86 6.86 6.86 13.10

20 20 15 15 15 15

2.60 2.75 2.37 2.50 2.60 5.10

22.80 22.80 11.40 11.40 11.40 21.80

30 30 15 15 15 30

5.20 5.40 4.47 5.00 5.20 10.20

46.80 46.80 22.80 22.80 22.80 43.70

60 60 30 30 30 60

7.80 8.15 7.10 7.50 7.80 15.30

68.50 69.50 34.40 34.40 34.40 65.50

80 80 40 40 40 80

10.40 10.80 9.50 10.00 10.00 20.40

91.50 91.50 45.80 45.80 45.80 87.50

110 110 60 60 50 110

15.00 16.20 14.24 15.00 15.60 30.60

138.00 138.00 68.60 68.60 68.60 132.00

150 175 80 80 80 175

20.80 21.60 19.00 20.00 20.30 40.80

183.00 183.00 91.60 91.60 91.20 175.00

225 225 110 110 110 225

31.20 32.50 28.50 30.00 31.20 61.00

275.00 275.00 136.80 136.80 136.80 263.00

350 350 175 175 175 350

52.00 54.00 47.40 50.00 52.00 102.00

457.00 457.00 228.00 228.00 228.00 437.00

600 600 300 300 300 600

78.00 81.00 71.00 76.00 78.00 153.00

688.00 688.00 344.00 344.00 344.00 655.00

800 800 400 400 400 800

104.00 108.00 95.00 100.00 104.00 204.00

915.00 915.00 458.00 458.00 458.00 875.00

1200 1200 600 600 600 1200

F F I I I E

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS

 See chart on page 101.

NOTE: Inputs and Outputs may be re versed; 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.

GROUP II

SINGLE PHASE BOOSTING

Line Voltage 95 100 105 208 215 215 220 225

(Available)

Load Voltage 120 114 119 240 244 230 235 240

(Output)

CAT. NO.

Load kVA 0.19 0.36 0.37 0.38 0.38 0.72 0.73 0.75

T181054 Amps 1.56 3.13 3.13 1.56 1.56 3.13 3.13 3.13

Max. Size of 6 6 6 6 6 6 6 6

Fuse or Breaker

Load kVA 0.38 0.71 0.74 0.75 0.76 1.44 1.47 1.50

T181055 Amps 3.13 6.25 6.25 3.13 3.13 6.25 6.25 6.25

Max. Size of 10 15 6 6 15 15 15 15

Fuse or Breaker

Load kVA 0.56 1.07 1.12 1.13 1.14 2.16 2.20 2.25

T181056 Amps 4.69 9.38 9.38 4.69 4.69 9.38 9.38 9.38

Max. Size of 10 15 15 10 10 15 15 15

Fuse or Breaker

Load kVA 0.94 1.78 1.86 1.88 1.91 3.59 3.67 3.75

T181057 Amps 7.81 15.63 15.63 7.81 7.81 15.63 15.63 15.63

Max. Size of 15 25 25 15 15 25 25 25

Fuse or Breaker

Load kVA 1.88 3.56 3.72 3.75 3.81 7.19 7.34 7.50

T181058 Amps 15.63 31.25 31.25 15.63 15.63 31.25 31.25 31.25

Max. Size of 25 45 45 25 25 45 45 45

Fuse or Breaker

Load kVA 2.81 5.34 5.58 5.63 5.72 10.78 11.02 11.25

T181059 Amps 23.44 46.88 46.88 23.44 23.44 46.88 46.88 46.88

Max. Size of 40 70 70 40 40 70 70 70

Fuse or Breaker

Load kVA 3.75 7.13 7.44 7.50 7.63 14.38 14.69 15.00

T113073 Amps 31.25 62.50 62.50 31.25 31.25 62.50 62.50 62.50

Max. Size of 50 90 90 50 50 90 90 90

Fuse or Breaker

Load kVA 5.63 10.69 11.16 11.25 11.44 21.56 22.03 22.50

T113074 Amps 46.90 93.80 93.80 46.90 46.90 93.80 93.80 93.80

Max. Size of 80 150 150 70 70 125 125 125

Fuse or Breaker

Load kVA 7.50 14.25 14.88 15.00 15.25 28.75 29.38 30.00

T113075 Amps 62.50 125.00 125.00 62.50 62.50 125.00 125.00 125.00

Max. Size of 100 200 200 90 90 175 175 175

Fuse or Breaker

Load kVA 11.25 21.38 22.31 22.50 22.88 43.13 44.06 45.00

T113076 Amps 93.80 187.50 187.50 93.80 93.80 187.50 187.50 187.50

Max. Size of 150 300 300 150 150 250 250 250

Fuse or Breaker

Load kVA 18.75 35.63 37.19 37.50 38.13 71.88 73.44 75.00

T113077 Amps 156.30 312.50 312.50 156.30 156.30 312.50 312.50 312.50

Max. Size of 250 450 450 225 225 450 450 450

Fuse or Breaker

Load kVA 28.10 53.40 55.80 56.30 57.20 107.80 110.20 112.50

T213078  Amps 234.40 468.80 468.80 234.40 234.40 468.80 468.80 468.80

Max. Size of 400 700 700 350 350 700 700 700

Fuse or Breaker

Load kVA 37.50 71.30 74.40 75.00 76.30 143.80 146.90 150.00

T213079  Amps 312.50 625.00 625.00 312.50 312.50 625.00 625.00 625.00

Max. Size of 500 1000 1000 450 450 1000 1000 1000

Fuse or Breaker

See Page 110 For D C C H H G G G

Connection Diagrams

BUCKING

135 240 240 245 250 255

119 208 225 230 234 239

0.42 0.37 0.75 0.77 0.78 0.80

3.54 1.77 3.33 3.33 3.33 3.33

6 3 6 6 6 6

0.84 0.74 1.50 1.53 1.56 1.59

7.08 3.54 6.67 6.67 6.67 6.67

15 6 15 15 15 15

1.26 1.11 2.25 2.30 2.34 2.39

10.63 5.31 10.00 10.00 10.00 10.00

15 6 15 15 15 15

2.11 1.84 3.75 3.83 3.90 3.98

17.71 8.85 16.67 16.67 16.67 16.67

20 15 20 20 20 20

4.21 3.68 7.50 7.67 7.80 7.97

35.42 17.71 33.33 33.33 33.33 33.33

40 20 40 40 40 40

6.32 5.53 11.25 11.50 11.70 11.95

53.13 26.56 50.00 50.00 50.00 50.00

60 30 60 60 60 60

8.43 7.37 15.00 15.33 15.60 15.93

70.83 35.42 66.67 66.67 66.67 66.67

80 40 80 80 80 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

212.50 106.30 200.00 200.00 200.00 200.00

250 125 250 250 250 250

42.15 36.83 75.00 76.67 78.00 79.67

354.20 177.10 333.30 333.30 333.30 333.30

400 200 400 400 400 400

63.20 55.30 112.50 115.00 117.00 119.50

531.30 265.60 500.00 500.00 500.00 500.00

600 300 600 600 600 600

84.30 73.70 150.00 153.30 156.00 159.30

708.30 354.20 666.70 666.70 666.70 666.70

800 400 800 800 800 800

F I E E E E

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS

 See chart on page 101.

NOTE: Inputs and Outputs may be re versed; 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.

GROUP III

SINGLE PHASE BOOSTING

Line Voltage 230 380 416 425 430 435 440 440 450 460

(Available)

Load Voltage 277 420 457 467 473 457 462 484 472 483

(Output)

CAT. NO.

Load kVA 0.29 0.44 0.48 0.49 0.49 0.95 0.96 0.50 0.98 1.01

T181061 Amps 1.04 1.04 1.04 1.04 1.04 2.08 2.08 1.04 2.08 2.08

Max. Size of 3 3 3 3 3 6 6 3 6 6

Fuse or Breaker

Load kVA 0.58 0.87 0.95 0.97 0.99 1.90 1.93 1.01 1.97 2.01

T181062 Amps 2.08 2.08 2.08 2.08 2.08 4.17 4.17 2.08 4.17 4.17

Max. Size of 6 6 6 6 6 10 10 6 10 10

Fuse or Breaker

Load kVA 0.87 1.31 1.43 1.46 1.48 2.86 2.89 1.51 2.95 3.02

T181063 Amps 3.13 3.13 3.13 3.13 3.13 6.25 6.25 3.13 6.25 6.25

Max. Size of 10 6 6 6 6 15 15 6 15 15

Fuse or Breaker

Load kVA 1.44 2.19 2.38 2.43 2.46 4.76 4.81 2.52 4.92 5.03

T181064 Amps 5.21 5.21 5.21 5.21 5.21 5.21 10.42 5.21 10.42 10.42

Max. Size of 15 10 10 10 10 15 15 10 15 15

Fuse or Breaker

Load kVA 2.89 4.38 4.76 4.86 4.93 9.52 9.62 5.04 9.83 10.06

T181065 Amps 10.42 10.42 10.42 10.42 10.42 20.83 20.83 10.42 20.83 20.83

Max. Size of 20 15 15 15 15 30 30 15 30 30

Fuse or Breaker

Load kVA 4.33 6.56 7.14 7.30 7.39 14.28 14.44 7.56 14.75 15.09

T181066 Amps 15.63 15.63 15.63 15.63 15.63 31.25 31.25 15.63 31.25 31.25

Max. Size of 25 25 25 25 25 45 45 25 45 45

Fuse or Breaker

Load kVA 5.77 8.57 9.52 9.73 9.85 19.04 19.25 10.08 19.67 20.13

T137920 Amps 20.83 20.83 20.83 20.83 20.83 41.67 41.67 20.83 41.67 41.67

Max. Size of 35 30 30 30 30 60 60 30 60 60

Fuse or Breaker

Load kVA 8.66 13.13 14.28 14.59 14.78 28.56 28.88 15.13 29.50 30.19

T137921 Amps 31.25 31.25 31.25 31.25 31.25 62.50 62.50 31.25 62.50 62.50

Max. Size of 50 50 45 45 45 90 90 45 90 90

Fuse or Breaker

Load kVA 11.54 17.50 19.04 19.46 19.71 38.08 38.50 20.17 39.33 40.25

T137922 Amps 41.67 41.67 41.67 41.67 41.67 83.33 83.33 41.67 83.33 83.33

Max. Size of 70 60 60 60 60 110 110 60 110 110

Fuse or Breaker

Load kVA 17.31 26.25 28.56 29.19 29.56 57.13 57.75 30.25 59.00 60.38

T137923 Amps 62.50 62.50 62.50 62.50 62.50 125.00 125.00 62.50 125.00 125.00

Max. Size of 100 90 90 90 90 175 175 90 175 175

Fuse or Breaker

Load kVA 28.90 43.80 47.60 48.60 49.30 95.20 96.20 50.40 98.30 100.60

T137924 Amps 104.20 104.20 104.20 104.20 104.20 208.30 208.30 104.20 208.30 208.30

Max. Size of 175 150 150 150 150 300 300 150 300 300

Fuse or Breaker

Load kVA 43.30 65.60 71.40 73.00 73.90 142.80 144.40 75.60 147.50 150.90

T243570 Amps 156.30 156.30 156.30 156.30 156.30 312.50 312.50 156.30 312.50 312.50

Max. Size of 250 225 225 225 225 450 450 225 450 450

Fuse or Breaker

Load kVA 57.70 87.50 95.20 97.30 98.50 190.40 192.50 100.80 196.70 201.30

T243571  Amps 208.30 208.30 208.30 208.30 208.30 416.70 416.70 208.30 416.70 416.70

Max. Size of 350 300 300 300 300 600 600 300 600 600

Fuse or Breaker

See Page 110 For D H H H H G G H G G

Connection Diagrams

BUCKING

277 480 480 504

230 436 456 480

0.29 0.50 1.05 1.10

1.25 1.15 2.29 2.29

3 3 6 6

0.58 1.00 2.09 2.20

2.50 2.29 4.58 4.58

6 6 10 10

0.86 1.50 3.14 3.30

3.75 3.44 6.88 6.88

6 6 15 15

1.44 2.50 5.23 5.50

6.25 5.73 11.46 11.46

10 10 15 15

2.88 5.00 10.45 11.00

12.50 11.46 22.92 22.92

15 15 30 30

4.31 7.49 15.68 16.50

18.75 17.19 34.38 34.38

20 20 45 45

5.75 9.99 20.90 22.00

25.00 22.92 45.83 45.83

30 30 60 60

8.63 14.99 31.35 33.00

37.50 34.38 68.75 68.75

40 40 90 90

11.50 19.98 41.80 44.00

50.00 45.83 91.67 91.67

60 60 110 110

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

125.00 114.60 229.20 229.20

150 150 300 300

43.10 74.90 156.80 165.00

187.50 171.90 343.80 343.80

200 200 450 450

57.50 99.90 209.00 220.00

250.00 229.20 458.30 458.30

300 300 600 600

J I E E

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS



See chart on page 101.

GROUP I

SELECTION CHARTS

THREE PHASE

THREE PHASE BOOSTING

Line Voltage 189Y 196Y 201Y 208Y 189 208 220

(Available) 109Y 113Y 116Y 120Y

Load Voltage 208 234 240 230 208 230 242

(Output)

CAT. NO.

Load kVA 1.50 0.84 0.87 1.66 0.75 0.83 0.87

T181047 Amps 4.17 2.08 2.08 4.17 2.08 2.08 2.08

Max. Size of

10 6 6 10 6 6 6

Fuse or Breaker

Load kVA 3.00 1.69 1.73 3.32 1.50 1.66 1.75

T181048 Amps 8.33 4.17 4.17 8.33 4.17 4.17 4.17

Max. Size of

15 10 10 15 10 10 10

Fuse or Breaker

Load kVA 4.50 2.53 2.60 4.98 2.25 2.49 2.62

T181049 Amps 12.50 6.25 6.25 12.50 6.25 6.25 6.25

Max. Size of

20 15 15 20 15 15 15

Fuse or Breaker

Load kVA 7.51 4.22 4.33 8.30 3.75 4.15 4.37

T181050 Amps 20.83 10.42 10.42 20.83 10.42 10.42 10.42

Max. Size of

30 20 20 30 15 15 15

Fuse or Breaker

Load kVA 15.01 8.44 8.66 16.60 7.51 8.30 8.73

T181051 Amps 41.67 20.83 20.83 41.67 20.83 20.83 20.83

Max. Size of

60 35 35 60 30 30 30

Fuse or Breaker

Load kVA 22.52 12.67 12.99 24.90 11.26 12.45 13.10

T181052 Amps 62.50 31.25 31.25 62.50 31.25 31.25 31.25

Max. Size of

90 50 50 90 45 45 45

Fuse or Breaker

Load kVA 30.02 16.89 17.32 33.20 15.01 16.60 17.46

T111683 Amps 83.33 41.67 41.67 83.33 41.67 41.67 41.67

Max. Size of

125 70 70 125 60 60 60

Fuse or Breaker

Load kVA 45.03 25.33 25.98 49.80 22.52 24.90 26.20

T111684 Amps 125.00 62.50 62.50 125.00 62.50 62.50 62.50

Max. Size of

175 100 100 175 90 90 90

Fuse or Breaker

Load kVA 60.04 33.77 34.64 66.40 30.02 33.20 34.93

T111685 Amps 166.67 83.33 83.33 167.67 83.33 83.33 83.33

Max. Size of

250 125 125 250 125 125 125

Fuse or Breaker

Load kVA 90.07 50.66 51.96 99.59 45.03 49.80 52.39

T111686 Amps 250.00 125.00 125.00 250.00 125.00 125.00 125.00

Max. Size of

350 200 200 350 175 175 175

Fuse or Breaker

Load kVA 150.11 84.44 86.60 165.99 75.06 82.99 87.32

T111687 Amps 416.67 208.33 208.33 416.67 208.33 208.33 208.33

Max. Size of

600 350 350 600 300 300 300

Fuse or Breaker

Load kVA 225.17 126.66 129.90 248.98 112.58 124.49 130.99

T211688 Amps 625.00 312.50 312.50 625.00 312.50 312.50 312.50

Max. Size of

1000 500 500 1000 450 450 450

Fuse or Breaker

Load kVA 300.22 168.87 173.21 331.98 150.11 165.99 174.65

T211689 Amps 833.33 416.67 416.67 833.33 416.67 416.67 416.67

Max. Size of

1200 700 700 1200 600 600 600

Fuse or Breaker

Quantity Required 3 3 3 3 2 2 2

See Page 102 For A-A F-F F-F A-A B-B B-B B-B

Connection Diagrams

BUCKING

219 230 250 255 264

208 208 227 232 240

1.58 0.83 0.90 0.92 0.95

4.39 2.30 2.29 2.29 2.29

10 6 6 6 6

3.16 1.66 1.80 1.84 1.91

8.77 4.61 4.59 4.58 4.58

15 10 10 10 10

4.74 2.49 2.71 2.76 2.86

13.16 6.91 6.88 6.87 6.88

20 15 15 15 15

7.90 4.15 4.51 4.60 4.76

21.94 11.52 11.47 11.45 11.46

30 15 15 15 15

15.80 8.30 9.02 9.20 9.53

43.87 23.04 22.94 22.90 22.92

60 30 30 30 30

23.71 12.45 13.53 13.80 14.29

65.81 34.56 34.42 34.35 34.38

80 40 40 40 40

31.61 16.60 18.04 18.40 19.05

87.74 46.07 45.89 45.80 45.83

110 60 60 60 60

47.41 24.90 27.06 27.60 28.58

131.61 69.11 68.83 68.70 68.75

175 80 80 80 80

63.22 33.20 36.08 36.81 38.11

175.48 92.15 91.78 91.59 91.67

225 110 110 110 110

94.83 49.80 54.13 55.21 57.16

263.22 138.22 137.67 137.39 137.50

350 175 175 175 175

158.05 82.99 90.21 92.02 95.26

438.70 230.37 229.44 228.99 229.17

600 300 300 300 300

237.07 124.49 135.32 138.02 142.89

658.05 345.55 344.16 343.48 343.75

800 400 400 400 400

316.10 165.99 180.42 184.03 190.53

877.40 460.74 458.88 457.97 458.33

1200 600 600 600 600

2 2 2 2 2

C-C E-E E-E E-E E-E

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS



See chart on page 101.

NOTE: (1) Inputs and Outputs may be re versed; 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.

GROUP II

THREE PHASE BOOSTING

Line Voltage 183Y 208Y 195 208 225

(Available) 106Y 120Y

Load Voltage 208 236 208 240 240

(Output)

CAT. NO.

Load kVA 1.13 1.28 1.13 0.63 1.30

T181054 Amps 3.13 3.13 3.13 1.56 3.13

Max. Size of

6 6 6 3 6

Fuse or Breaker

Load kVA 2.25 2.55 2.25 1.27 2.60

T181055 Amps 6.25 6.25 6.25 3.13 6.25

Max. Size of

15 15 15 6 15

Fuse or Breaker

Load kVA 3.38 3.83 3.38 1.90 3.90

T181056 Amps 9.38 9.38 9.38 4.69 9.38

Max. Size of

15 15 15 10 15

Fuse or Breaker

Load kVA 5.63 6.39 5.63 3.17 6.50

T181057 Amps 15.63 15.63 15.63 7.81 15.63

Max. Size of

25 25 25 15 25

Fuse or Breaker

Load kVA 11.26 12.77 11.26 6.33 12.99

T181058 Amps 31.25 31.25 31.25 15.63 31.25

Max. Size of

45 45 45 25 45

Fuse or Breaker

Load kVA 16.89 19.16 16.89 9.50 19.49

T181059 Amps 46.88 46.88 46.88 23.44 46.88

Max. Size of

70 70 70 35 70

Fuse or Breaker

Load kVA 22.52 25.55 22.52 12.67 25.98

T113073 Amps 62.50 62.50 62.50 31.25 62.50

Max. Size of

90 90 90 45 90

Fuse or Breaker

Load kVA 33.77 38.32 33.77 19.00 38.97

T113074 Amps 93.75 93.75 93.75 46.88 93.75

Max. Size of

150 150 125 70 125

Fuse or Breaker

Load kVA 45.03 51.10 45.03 25.33 51.96

T113075 Amps 125.00 125.00 125.00 62.50 125.00

Max. Size of

200 200 175 90 175

Fuse or Breaker

Load kVA 67.55 76.64 67.55 38.00 77.94

T113076 Amps 187.50 187.50 187.50 93.75 187.50

Max. Size of

300 300 250 150 250

Fuse or Breaker

Load kVA 112.58 127.74 112.58 63.33 129.90

T113077 Amps 312.50 312.50 312.50 156.25 312.50

Max. Size of

450 450 450 225 450

Fuse or Breaker

Load kVA 166.87 191.61 168.87 94.99 194.86

T213078 Amps 468.75 468.75 468.75 234.38 468.75

Max. Size of

700 700 700 350 700

Fuse or Breaker

Load kVA 225.17 255.48 225.17 126.66 259.81

T213079 Amps 625.00 625.00 625.00 312.50 625.00

Max. Size of

1000 1000 1000 450 1000

Fuse or Breaker

Quantity Required 3 3 2 2 2

See Page 110 For A-A A-A G-G B-B G-G

Connection Diagrams

BUCKING

240 245 250 256 265 272

208 230 234 240 234 240

0.56 1.33 1.35 1.39 0.72 0.74

1.56 3.33 3.34 3.33 1.77 1.77

3 6 6 6 3 3

1.13 2.65 2.71 2.77 1.43 1.47

3.13 6.66 6.68 6.67 3.54 3.54

6 15 15 15 6 6

1.69 3.98 4.06 4.16 2.15 2.21

4.69 9.99 10.02 10.00 5.31 5.31

10 15 15 15 10 10

2.81 6.63 6.77 6.93 3.59 3.68

7.81 16.64 16.69 16.67 8.85 8.85

15 20 20 20 15 15

5.63 13.26 13.53 13.86 7.17 7.36

15.63 33.29 33.39 33.33 17.69 17.71

20 40 40 40 20 20

8.44 19.89 20.30 20.78 10.76 11.04

23.44 49.93 50.08 50.00 26.54 26.56

30 60 60 60 30 30

11.26 26.52 27.06 27.71 14.34 14.72

31.25 66.58 66.67 66.67 35.39 35.42

35 80 80 80 40 40

16.89 39.87 40.59 41.57 21.52 22.08

46.88 99.86 100.16 100.00 53.08 53.13

60 125 125 125 60 60

22.52 53.04 54.13 55.43 28.69 29.44

62.50 133.15 133.55 133.33 70.78 70.83

70 175 175 175 80 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

156.25 332.88 333.87 333.33 176.95 176.80

175 400 400 400 200 200

84.44 198.92 202.97 207.85 107.58 110.42

234.38 499.32 500.80 500.00 265.42 265.63

300 600 600 600 300 300

112.58 265.22 270.63 277.13 143.44 147.22

312.50 665.76 667.74 666.67 353.90 354.17

350 800 800 800 400 400

2 2 2 2 2 2

D-D C-C C-C C-C E-E E-E

SECTION BUCK-BOOST TRANSFORMERS

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

SECTION BUCK-BOOST TRANSFORMERS



See chart on page 101.

NOTE: (1) Inputs and Outputs may be re versed; 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.

GROUP III

THREE PHASE BOOSTING

Line Voltage 399Y 380 430 440 460 460 480 480

(Available) 230Y

Load Voltage 480Y 420 473 462 506 483 528 504

(Output) 277Y

CAT. NO.

Load kVA 0.86 0.76 0.85 1.66 0.91 1.74 0.95 1.82

T181061 Amps 1.04 1.04 1.04 2.08 1.04 2.08 1.04 2.08

Max. Size of 3 3 3 6 3 6 3 6

Fuse or Breaker

Load kVA 1.73 1.51 1.70 3.33 1.82 3.48 1.90 3.63

T181062 Amps 2.08 2.08 2.08 4.16 2.08 4.16 2.08 4.16

Max. Size of 6 6 6 10 6 10 6 10

Fuse or Breaker

Load kVA 2.60 2.27 2.56 4.99 2.73 5.22 2.85 5.45

T181063 Amps 3.12 3.12 3.12 6.24 3.12 6.25 3.12 6.24

Max. Size of 10 6 6 15 6 15 6 15

Fuse or Breaker

Load kVA 4.33 3.78 4.26 8.32 4.56 8.70 4.76 9.08

T181064 Amps 5.20 5.20 5.20 10.40 5.20 10.40 5.20 10.40

Max. Size of 15 10 10 15 10 15 10 15

Fuse or Breaker

Load kVA 8.60 7.56 8.52 16.64 9.11 17.40 9.51 18.16

T181065 Amps 10.40 10.40 10.40 20.80 10.40 20.80 10.40 20.80

Max. Size of 20 15 15 30 15 30 15 30

Fuse or Breaker

Load kVA 12.90 11.34 12.77 24.97 13.67 26.10 14.27 27.24

T181066 Amps 15.60 15.60 15.60 31.20 15.60 31.20 15.60 31.20

Max. Size of 25 25 25 45 25 45 25 45

Fuse or Breaker

Load kVA 17.30 15.12 17.03 33.29 18.23 34.80 19.02 36.31

T137920 Amps 20.80 20.80 20.80 41.60 20.80 41.60 20.80 41.60

Max. Size of 35 30 30 60 30 60 30 60

Fuse or Breaker

Load kVA 25.90 22.69 25.55 49.93 27.34 52.20 28.53 54.47

T137921 Amps 31.20 31.20 31.20 62.40 31.20 62.40 31.20 62.40

Max. Size of 50 45 45 90 45 90 45 90

Fuse or Breaker

Load kVA 34.60 30.25 34.07 66.58 36.46 69.60 38.04 72.63

T137922 Amps 41.60 41.60 41.60 83.20 41.60 83.20 41.60 83.20

Max. Size of 70 60 60 110 60 110 60 110

Fuse or Breaker

Load kVA 52.00 45.45 51.18 100.03 54.69 104.57 57.07 109.12

T137923 Amps 62.50 62.50 62.50 125.00 62.50 125.00 62.50 125.00

Max. Size of 100 90 90 175 90 175 90 175

Fuse or Breaker

Load kVA 86.10 75.62 85.17 166.44 91.15 174.01 95.11 181.57

T137924 Amps 104.00 104.00 104.00 208.00 104.00 208.00 104.00 208.00

Max. Size of 175 150 150 300 150 300 150 300

Fuse or Breaker

Load kVA 129.30 113.43 127.75 249.66 136.72 261.01 142.67 272.36

T243570 Amps 156.00 156.00 156.00 312.00 156.00 312.00 156.00 312.00

Max. Size of 250 225 225 450 225 450 225 450

Fuse or Breaker

Load kVA 173.10 151.25 170.33 332.89 182.29 348.02 190.22 363.15

T243571 Amps 208.00 208.00 208.00 416.00 208.00 416.00 208.00 416.00

Max. Size of 350 300 300 600 300 600 300 600

Fuse or Breaker

Quantity Required 3 2 2 2 2 2 2 2

See Page 110 For F-F B-B B-B G-G B-B G-G B-B G-G

Connection Diagrams

BUCKING

440 440 460 460 480 480 500 500

400 419 438 418 457 436 455 477

0.79 1.58 1.66 0.83 1.73 0.86 0.90 1.80

1.14 2.18 2.18 1.14 2.18 1.14 1.14 2.18

3 6 6 3 6 3 3 6

1.59 3.17 3.31 1.66 3.46 1.73 1.80 3.61

2.29 4.37 4.37 2.29 4.37 2.29 2.29 4.37

6 10 10 6 10 6 6 10

2.38 4.75 4.97 2.48 5.19 2.59 2.70 5.41

3.43 6.55 6.55 3.43 6.55 3.43 3.43 6.55

6 15 15 6 15 6 6 15

3.96 7.92 8.28 4.14 8.64 4.32 4.51 9.02

5.72 10.92 10.92 5.72 10.92 5.72 5.72 10.92

10 15 15 10 15 10 10 15

7.93 15.85 16.57 8.28 17.29 8.64 9.02 18.04

11.44 21.84 21.84 11.44 21.84 11.44 11.44 21.84

15 30 30 15 30 15 15 30

11.89 23.77 24.85 12.42 25.93 12.96 13.52 27.07

17.16 32.76 32.76 17.16 32.76 17.16 17.16 32.76

20 40 40 20 40 20 20 40

15.85 31.70 33.14 16.57 34.57 17.28 18.03 36.09

22.88 43.68 43.68 22.88 43.68 22.88 22.88 43.68

30 60 60 30 60 30 30 60

23.78 47.55 49.71 24.85 51.86 25.92 27.05 54.13

34.32 65.52 65.52 34.32 65.52 34.32 34.32 65.52

40 80 80 40 80 40 40 80

31.70 63.40 66.27 33.13 69.15 34.56 36.06 72.18

45.76 87.36 87.36 45.76 87.36 45.76 45.76 87.36

60 110 110 60 110 60 60 110

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

300 600 600 300 600 300 300 600

2 2 2 2 2 2 2 2

E-E C-C C-C E-E C-C E-E E-E C-C

SECTION BUCK-BOOST TRANSFORMERS

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

100

SECTION BUCK-BOOST TRANSFORMERS

100

240 X 480 PRIMARY VOLTS — 24/48 SECONDARY VOLTS — 60 Hz

GROUP III

SPECIFICATIONS



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.

120 X 240 PRIMARY VOLTS — 12/24 SECONDARY VOLTS — 60 Hz

120 X 240 PRIMARY VOLTS — 16/32 SECONDARY VOLTS — 60 Hz

GROUP I

GROUP II

INSULATING SECONDARY MAXIMUM APPROX. DIMENSIONS APPROX.

CATALOG TRANSFORMER CURRENT OUTPUT INCHES (CM.) NET WEIGHT DIMENSIONAL

NUMBER RATING 24 V 48 V HEIGHT WIDTH DEPTH LBS. (KG.) DRAWINGS

T181061 0.05 kVA 2.08 1.04 6.41 (16.3) 3.14 (8.0) 3.05 (7.7) 4 (1.8) A

T181062 0.10 kVA 4.16 2.08 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 5 (2.3) A

T181063 0.15 kVA 6.24 3.12 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 7 (3.2) A

T181064 0.25 kVA 10.40 5.20 8.68 (22.0) 4.08 (10.4) 3.88 (9.9) 10 (4.5) B

T181065 0.50 kVA 20.80 10.40 9.06 (23.0) 4.37 (11.1) 4.20 (10.7) 15 (6.8) B

T181066 0.75 kVA 31.20 15.60 9.68 (24.6) 4.75 (12.1) 4.51 (11.5) 19 (8.6) B

T137920 1.00 kVA 41.60 20.80 10.50 (26.7) 5.50 (14.0) 5.13 (13.0) 24 (10.9) B

T137921 1.50 kVA 62.40 31.20 11.62 (29.5) 5.50 (14.0) 5.13 (13.0) 30 (13.6) B

T137922 2.00 kVA 83.20 41.60 13.00 (33.0) 5.50 (14.0) 5.13 (13.0) 38 (17.2) B

T137923 3.00 kVA 125.00 62.50 11.50 (29.2) 10.31 (26.2) 7.13 (18.1) 55 (24.9) C

T137924 5.00 kVA 208.00 104.00 14.38 (36.5) 10.31 (26.2) 7.13 (18.1) 75 (34.0) C

T243570 7.50 kVA 312.00 156.00 20.81 (52.9) 11.12 (28.2) 10.84 (27.5) 135 (61.2) D

T243571 10.00 kVA 416.00 208.00 20.81 (52.9) 11.75 (29.8) 11.59 (29.4) 160 (72.6) D

INSULATING SECONDARY MAXIMUM APPROX. DIMENSIONS APPROX.

CATALOG TRANSFORMER CURRENT OUTPUT INCHES (CM.) NET WEIGHT DIMENSIONAL

NUMBER RATING 16 V 32 V HEIGHT WIDTH DEPTH LBS. (KG.) DRAWINGS

T181054 0.05 kVA 3.12 1.56 6.41 (16.3) 3.14 (8.0) 3.05 (7.7) 4 (1.8) A

T181055 0.10 kVA 6.25 3.12 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 5 (2.3) A

T181056 0.15 kVA 9.38 4.69 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 7 (3.2) A

T181057 0.25 kVA 15.60 7.80 8.68 (22.0) 4.08 (10.4) 3.88 (9.9) 10 (4.5) B

T181058 0.50 kVA 31.20 15.60 9.06 (23.0) 4.37 (11.1) 4.20 (10.7) 15 (6.8) B

T181059 0.75 kVA 46.90 23.40 9.68 (24.6) 4.75 (12.1) 4.51 (11.5) 19 (8.6) B

T113073 1.00 kVA 62.50 31.20 10.50 (26.7) 5.50 (14.0) 5.13 (13.0) 24 (10.9) B

T113074 1.50 kVA 93.70 46.90 11.62 (29.5) 5.50 (14.0) 5.13 (13.0) 30 (13.6) B

T113075 2.00 kVA 125.00 62.50 13.00 (33.0) 5.50 (14.0) 5.13 (13.0) 38 (17.2) B

T113076 3.00 kVA 187.50 93.80 11.50 (29.2) 10.31 (26.2) 7.13 (18.1) 55 (24.9) C

T113077 5.00 kVA 312.00 156.00 14.38 (36.5) 10.31 (26.2) 7.13 (18.1) 75 (34.0) C

T213078 7.50 kVA 468.00 234.00 20.81 (52.9) 11.12 (28.2) 10.84 (27.5) 125 (56.7) D

T213079 10.00 kVA 625.00 312.00 20.81 (52.9) 11.75 (29.8) 10.84 (27.5) 160 (72.6) D

INSULATING SECONDARY MAXIMUM APPROX. DIMENSIONS APPROX.

CATALOG TRANSFORMER CURRENT OUTPUT INCHES (CM.) NET WEIGHT DIMENSIONAL

NUMBER RATING 12 V 24 V HEIGHT WIDTH DEPTH LBS. (KG.) DRAWINGS

T181047 0.05 kVA 4.16 2.08 6.41 (16.3) 3.14 (8.0) 3.05 (7.7) 4 (1.8) A

T181048 0.10 kVA 8.32 4.16 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 5 (2.3) A

T181049 0.15 kVA 12.52 6.25 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 7 (3.2) A

T181050 0.25 kVA 20.80 10.40 8.68 (22.0) 4.08 (10.4) 3.88 (9.9) 10 (4.5) B

T181051 0.50 kVA 41.60 20.80 9.06 (23.0) 4.37 (11.1) 4.20 (10.7) 15 (6.8) B

T181052 0.75 kVA 62.50 31.25 9.68 (24.6) 4.75 (12.1) 4.51 (11.5) 19 (8.6) B

T111683 1.00 kVA 83.20 41.60 10.50 (26.7) 5.50 (14.0) 5.13 (13.0) 24 (10.9) B

T111684 1.50 kVA 125.00 62.50 11.62 (29.5) 5.50 (14.0) 5.13 (13.0) 30 (13.6) B

T111685 2.00 kVA 166.00 83.20 13.00 (33.0) 5.50 (14.0) 5.13 (13.0) 38 (17.2) B

T111686 3.00 kVA 250.00 125.00 11.50 (29.2) 10.31 (26.2) 7.13 (18.1) 55 (24.9) C

T111687 5.00 kVA 416.60 208.00 14.38 (36.5) 10.31 (26.2) 7.13 (18.1) 75 (34.0) C

T211688 7.50 kVA 625.00 312.50 20.81 (52.9) 11.12 (28.2) 10.84 (27.5) 125 (56.7) D

T211689 10.00 kVA 833.00 416.60 20.81 (52.9) 11.75 (29.8) 11.59 (29.4) 160 (72.6) D

SECTION BUCK-BOOST TRANSFORMERS

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

101

SECTION BUCK-BOOST TRANSFORMERS

101

DESIGN A DESIGN B DESIGN C DESIGN D

LOW VOLTAGE LIGHTING WIRING DIAGRAMS SINGLE PHASE

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.

GROUP I GROUP II GROUP III

KL MN

H4 H1

H3 H2

X1 X2 X3 X4 X1 X2 X3 X4

H4 H1

H3 H2

X1 X2 X3 X4

H4 H1H3 H2

X1 X2 X3 X4

H4 H1H3 H2

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

BUCK-BOOST DIMENSIONAL DRAWINGS

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

INPUT OUTPUT CONNECTION

DIAGRAM

120 16 K

120 32 L

240 16 M

240 32 N

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

INPUT OUTPUT CONNECTION

DIAGRAM

120 12 K

120 24 L

240 12 M

240 24 N

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

INPUT OUTPUT CONNECTION

DIAGRAM

240 24 K

240 48 L

480 24 M

480 48 N

SECTION BUCK-BOOST TRANSFORMERS

102

INPUT ONLY

OUTPUT ONLY

H3H2

X2 X1

TRANS. #1

TRANS. #2

TRANS. #3

NEUTRAL

INPUT

OUTPUT

TRANS. #2

TRANS. #1

INPUT

OUTPUT

TRANS. #1

TRANS. #2

INPUT

OUTPUT

TRANS. #1

TRANS. #2

INPUT

OUTPUT

TRANS. #1

TRANS. #2

INPUT ONLY

OUTPUT ONLY

H3H2

X2 X1

TRANS. #1

TRANS. #2

TRANS. #3

NEUTRAL

INPUT

OUTPUT

TRANS. #2

TRANS. #1

FIG. AA  WYE FIG. BB OPEN DELTA FIG. CC OPEN DELTA FIG. DD OPEN DELTA

FIG. EE OPEN DELTA FIG. FF



WYE FIG. GG OPEN DELTA

 The symbol O used in these

connection diagrams indicates

where to field install the over-

current protective device,

typically a fuse or circuit breaker.

 Cannot be reverse connected.

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.

BUCK-BOOST WIRING DIAGRAMS

 SINGLE PHASE

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

H4 H1

H3 H2 X4 X1

X3 X2

INPUT

OUTPUT

FIG. D

FIG. F

FIG. C

FIG. E

FIG. G FIG. H

FIG. J

FIG. I

BUCK-BOOST WIRING DIAGRAMS

 THREE PHASE

SECTION

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® . . . . . . . . . . . . . . . . . 1 0 4 - 1 0 5

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

PANEL-TRAN®

ZONE POWER

CENTERS

SECTION PANEL-TRAN® ZONE POWER CENTERS

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

104

SECTION PANEL-TRAN® ZONE POWER CENTERS

104

Convenient Package Saves Costs and Space

ELECTRICAL CHARACTERISTICS

SINGLE PHASE

Primary Voltage:

480 Volts; 600 Volts Single Phase, 60 Hz

2 – 5% BNFC taps

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

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

PT061150005LS PTBA3150015LS

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

 600 volt class and below

 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

304 STAINLESS STEEL

PANEL-TRAN®

FEATURES

 3R Enclosure.

 Abundant knockouts provided.

 Encapsulated construction.

 Single phase: 5 – 25 kVA.

Three phase: 9 – 30 kVA.

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

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SECTION PANEL-TRAN® ZONE POWER CENTERS

105

SECTION 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® — W h y ? 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® — W h e r e ? 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 set-

ups, 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 capaci ty 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.

Primary

Main

Secondary

Main

Hinged Removable

Cover

Tamper-Proof

Pad-Lockable

Captive Hardware

Sturdy Unitized

Construction

FEATURES

SECTION PANEL-TRAN® ZONE POWER CENTERS

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SECTION PANEL-TRAN® ZONE POWER CENTERS

106

SELECTION CHARTS SINGLE PHASE

 The number of secondary circuits shown is only a representation of circuits. Please contact the factory for exact number of secondary circuits available.

 18,000 Amps RMS Symmetrical Interrupting Capacity.

Circuit Breaker Data

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

GROUP I

GROUP I – 304 SS

304 STAINLESS STEEL

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

480 VOLTS TO 240/120 VOLTS

MAXIMUM SECONDARY APPROX. DIMENSIONS APPROX.

CIRCUITS  INCHES (CM.) NET WEIGHT

KVA CATALOG NO. 120 V 240 V HEIGHT 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 10 41.88 (106.4) 17.88 (45.4) 13.50 (34.3) 330 (150.0)

MAXIMUM SECONDARY APPROX. DIMENSIONS APPROX.

CIRCUITS  INCHES (CM.) NET WEIGHT

KVA CATALOG NO. 120 V 240 V HEIGHT WIDTH DEPTH LBS. (KG.)

(1-POLE) (2-POLE)

5.0 PT061150005SS 8 4 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)

480 VOLTS 240/120 VOLTS MAXIMUM RATING

1Ø PRIMARY SECONDARY OF

KVA BREAKER MAIN 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

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SECTION PANEL-TRAN® ZONE POWER CENTERS

107

SECTION PANEL-TRAN® ZONE POWER CENTERS

Circuit Breaker Data

480 VOLTS DELTA TO 208Y/120 VOLTS

SELECTION CHARTS THREE PHASE

GROUP A

 The number of secondary circuits shown is only a representation of circuits. Please contact the factory for exact number of secondary circuits available.

 10,000 Amps RMS Symmetrical Interrupting Capacity.

480 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– 3Ø, 60 Hz

GROUP A – 304 SS

304 STAINLESS STEEL

480 DELTA PRIMARY VOLTS –– 208Y/120 SECONDARY VOLTS –– 3Ø, 60 Hz

MAX. SECONDARY CIRCUITS  APPROX. DIMENSIONS APPROX.

1Ø 3Ø INCHES (CM.) NET WEIGHT

KVA CATALOG NO. 120 V 208 V HEIGHT WIDTH DEPTH LBS. (KG.)

(1-Pole) (3-Pole)

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)

MAX. SECONDARY CIRCUITS  APPROX. DIMENSIONS APPROX.

1Ø 3Ø INCHES (CM.) NET WEIGHT

KVA CATALOG NO. 120 V 208 V HEIGHT WIDTH DEPTH LBS. (KG.)

(1-Pole) (3-Pole)

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)

3Ø 480 VOLTS 208Y/120 VOLTS MAXIMUM RATING

PRIMARY SECONDARY OF

KVA BREAKER MAIN 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

SECTION PANEL-TRAN® ZONE POWER CENTERS

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SECTION PANEL-TRAN® ZONE POWER CENTERS

108

Wiring Diagram 1Ø 5-25 kVA

X2X3

H3 H4H2

LINE 1 LINE 2

GROUND

WHEN

REQUIRED BOND

WHEN

REQUIRED

NEUTRAL

3Ø 9 kVA 3Ø 15-30 kVA

GROUND

WHEN

REQUIRED

BOND

WHEN

REQUIRED

H3H4 H7

LINE B LINE C

NEUTRAL

H1 H3H2

123123 1

X1 X2 X3

H2 H1H8

LINE A LINE A LINE CLINE B

4 10

115

126

BOND

WHEN

REQUIRED

NEUTRAL

PRIMARY MAIN

FURNISHED

SECONDARY MAIN

FURNISHED

BRANCH CIRCUIT

BREAKERS ARE

ADDED BY INSTALLER

GROUND

WHEN

REQUIRED

PANEL-TRAN® ZONE POWER CENTERS WIRING DIAGRAMS SINGLE PHASE

PANEL-TRAN® ZONE POWER CENTERS WIRING DIAGRAMS THREE PHASE

SECTION

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

AIR CONDITIONING,

REFRIGERATION

& APPLIANCE

TRANSFORMERS

SECTION

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

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SECTION

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

110

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 off-

standard 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).

2. Low voltage due to inadequate wiring capacity in the

electrical distribution system.

3. Low voltage caused by distribution of power over a

long distance.

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

Standard voltages and frequencies (Hz) vary throughout

many countries of the world. Since these autotransformers

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 off-

standard voltage to the nominal voltages required to

operate:

a) Air conditioners, television receivers, all home

appliances.

b) Hermetically sealed refrigeration motors.

c) Individual machine lighting, tool post grinders, fans,

convenience outlets for portable lights, power tools.

d) Magnetic contactors, relays, AC motors and similar

devices requiring large starting (inrush) currents.

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.

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.

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.

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.

Air Conditioning, Refrigeration & Appliance Transformers

380V

380Y/220V, 3Ø

4 WIRE SUPPLY

220V

110V

ACME

APPLIANCE

TRANSFORMER

LOAD

(MOTOR, APPLIANCE, ETC.)

Construction Features

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SECTION

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

111

SECTION

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

1. Determine the value of incoming line supply voltage and

frequency (50 or 60 Hz).

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).

3. Add all VA requirements of equipment to obtain total

load. (All components must be of same voltage rating).

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.

Catalog # T160812

Selection Steps

Secondary Receptacle

6’ (1.8 M) Primary Cord

The transformers in this section will not cause harmonic

distortion to voltage or current wave shape.

All transformers in Group C are equipped with a SAFETY

grounding feature on both the input and output side.

Connection for ground may be made through lead wires or

through plug and receptacle combinations where installed.

All units are manufactured and tested in accordance with

National Electrical Manufacturers Association standards.

Some groups are equipped with primary voltage taps which

correct for voltage conditions constantly above or below the

nominal rating of the supply.

SECTION

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

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SECTION

AIR CONDITIONING, REFRIGERATION & APPLIANCE TRANSFORMERS

112

GROUP C

PRIMARY VOLTS — 200/220/240 SECONDARY VOLTS — 115, 50/60 Hz

RECEPTACLE

CATALOG VA OUTPUT APPROX. DIMENSIONS APPROX.

NO. RATING AMPS INCHES (CM.) SHIP WEIGHT CONNECTIONS

HEIGHT WIDTH DEPTH LBS. (KG.) FEET (METERS)

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

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.

SECTION

True-Power® Constant Voltage

Regulators .250–15.0 kVA

True-Power® Products .......................................114

Specifications ....................................................115

Selection Charts .................................................115

Dimensional Drawings .......................................116

POWER

CONDITIONING

PRODUCTS

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SECTION

CONSTANT VOLTAGE REGULATORS & POWER LINE CONDITIONERS

SECTION

CONSTANT VOLTAGE REGULATORS

FEATURES

n Reliable, regulated output voltage when input voltage varies,

even to brownout levels.

n Extended operation to 65% of nominal when operated at 60% of

full load.

n Noise rejection—effectively suppressing transient spikes and

surges—120 db common mode and 60 db transverse mode.

n Rapid response to line and load changes—5% variation in 8m

sec, 10% variation in 16m sec.

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

n Inherent overload and short circuit protection, without thermo

protectors, fuses or circuit breakers, for immediate recovery

when the overload is removed.

n Sinusoidal output features, less than 3% harmonic distortion,

improves input wave forms which have total harmonic distortions

of greater than 5%.

n Available in 250 through 15,000 VA in hardwired models.

n Handle multiple primary input voltages.

n Illuminated ON/OFF switch, multiple output receptacles and six

foot input power cord on portable units.

n UL Listed.

n CSA Certified

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.

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.

APPLICATIONS

Industrial Automation and Control

Equipment

Electronic Test Equipment

Robotics

X-Ray Eauipment

Communications Equipment

Acme® True-Power® Constant Voltage Regulators

Product Selection Guide

Shielded

PROBLEM ENCOUNTERED Isolation True- SPS UPS

Transformer Power®

Power Failure — — X X

Widely Varying Source Voltage — X — X

Brown Outs — X 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 X X X X

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115

SECTION

CONSTANT VOLTAGE REGULATORS & POWER LINE CONDITIONERS

SECTION

10CONSTANT VOLTAGE REGULATORS

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

SPECIFICATIONS

F = Floor W = Wall

① Wall mounting brackets required for this size. Refer to Page 133.

② All hardwired models will accommodate these primary input voltages.

③ Dimensions not suitable for construction. Contact factory.

SELECTION CHARTS

GROUP II

Input (Primary) 95-132 VAC (Hardwired) ②

166-228 VAC

192-264 VAC

384-528 VAC

Phase: 1 Phase

Output (Secondary) 120/208/240 VAC (Hardwire)

Load Range 0-100%

Regulation ± 3% for line/load changes

Attenuation 120 db Common Mode Noise

60 db Transverse Mode Noise

Audible Noise Below ANSI std. C 89.2

APPROX. DIMENSIONS③

APPROX.

KVA CATALOG

INCHES (CM.) TYPE SHIP FIGURE WIRING

SIZE NUMBER A B C D E F G H J MTG. WEIGHT DIAGRAMS

HEIGHT WIDTH DEPTH LBS. (KG.) SEE PAGE 147

0.25 T169430 15.50 6.30 5.80 5.63 8.13 9.30 1.2 .41 x .81 5.00 F&W 37 II 16

(39.4) (16.0) (14.7) (14.3) (20.7) (23.6) (3.0) (1.0 x 2.1) (12.7) (16.8)

0.35 T169431 17.00 7.00 7.30 5.63 8.13 9.40 2.3 .41 x .81 6.50 F&W 51 II 16

(43.2) (17.8) (18.5) (14.3) (20.7) (23.9) (5.8) (1.0 x 2.1) (16.5) (23.1)

0.50 T169432 17.00 7.00 7.30 5.63 8.13 9.40 2.3 .41 x .81 6.50 F&W 53 II 16

(43.2) (17.8) (18.5) (14.3) (20.7) (23.9) (5.8) (1.0 x 2.1) (16.5) (24.0)

0.75 T169433 17.00 7.00 7.30 5.63 8.13 9.40 2.3 .41 x .81 6.50 F&W 65 II 16

(43.2) (17.8) (18.5) (14.3) (20.7) (23.9) (5.8) (1.0 x 2.1) (16.5) (29.5)

1.00 T169434 18.50 6.50 8.55 5.63 8.13 9.50 2.3 .41 x .81 7.75 F&W 82 II 16

(47.0) (16.5) (21.7) (14.3) (20.7) (24.1) (5.8) (1.0 x 2.1) (19.7) (37.2)

2.00 T169435 19.00 10.50 10.20 6.00 12.00 13.25 2.3 .44 x .63 9.40 F&W 142 III 16

(48.3) (26.7) (25.9) (15.2) (30.5) (33.7) (5.8) (1.1 x 1.6) (23.9) (64.4)

3.00 T169436 19.00 10.50 10.20 6.00 12.00 13.25 2.3 .44 x .63 9.40 F&W 176 III 16

(48.3) (26.7) (25.9) (15.2) (30.5) (33.7) (5.8) (1.1 x 1.6) (23.9) (79.8)

5.00 T169437 22.00 12.54 12.20 6.00 14.00 15.25 2.3 .44 x .63 11.40 F&W 295 III 16

(55.9) (31.9) (31.0) (15.2) (35.6) (38.7) (5.8) (1.1 x 1.6) (29.0) (134.0)

10.00 T169438 23.06 27.31 24.06 18.00 25.50 — — .56 — F&W ① 605 IV 16

(58.6) (69.4) (61.1) (45.7) (64.8) (1.4) (274.0)

15.00 T169439 23.06 40.13 24.06 18.00 38.31 — — .56 — F 880 IV 16

(58.6) (101.9) (61.1) (45.7) (97.3) (1.4) (399.0)

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116

SECTION

CONSTANT VOLTAGE REGULATORS & POWER LINE CONDITIONERS

116

SECTION

10CONSTANT VOLTAGE REGULATORS

FIGURE II & III

FIGURE IV

FRONT VIEW SIDE VIEW

CONSTANT VOLTAGE REGULATORS DIMENSIONAL DRAWINGS

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 ................. 118

General Description and Features ............118-119

Selection Charts ................................................ 120

POWERWISE C3

SECTION

SECTION POWERWISE C3 TRANSFORMER

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SECTION POWERWISE C3 TRANSFORMER

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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 higher-

grade 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.

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.

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.

A New Standard in Transformer Efficiency

15 kVA 30 kVA 45 kVA 75 kVA 112.5 kVA 150 kVA 225 kVA 300 kVA 500 kVA

CSL-3 Efficiency 97.9% 98.3% 98.4% 98.6% 98.7% 98.8% 99.0% 99.0% 99.1%

15 kVA 30 kVA 45 kVA 75 kVA 112.5 kVA 150 kVA 225 kVA 300 kVA

No-Load Loss 70W 90W 130W 160W 240W 280W 370W 550W

TYPICAL APPLICATIONS INCLUDE:

n Educational Facilities (K–12/University)

n Government Buildings

n Manufacturing Facilities

n Office and Commercial Buildings

n Healthcare/Hospital/Medical Office Buildings

n Financial Institutions

n Data Processing Centers

n Wastewater and Sewage Treatment Facilities

n Correctional Facilities

n Industrial Facilities

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SECTION POWERWISE C3 TRANSFORMER

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SECTION POWERWISE C3 TRANSFORMER

APPLICATIONS

The Acme POWERWISE C3 transformer is the ideal

transformer for commercial environments where

energy efficiency is a primary concern. It 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.

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

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.

SPECIFICATIONS

Windings ...........................Copper

Insulation Class ................. 220° C

Degree Rise ......................115° C or 130° C

Noise Levels......................Per NEMA ST-20 -5dB low noise

Rated for 60 Hertz ............

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

SECTION POWERWISE C3 TRANSFORMER

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SECTION POWERWISE C3 TRANSFORMER

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SELECTION CHARTS

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

APPROX. DIMENSIONS ② APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 154

15 TPC3533111S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 350 (158.8) 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

75 TPC3533141S 35.38 (89.9) 31.90 (81.0) 26.88 (68.3) 585 (265.4) F WSA3 22-E

112.5 TPC3533151S 41.52 (105.5) 33.06 (84.0) 29.87 (75.9) 1020 (462.7) F WSA4 22-E

150 TPC3533161S 41.52 (105.5) 33.06 (84.0) 29.87 (75.9) 1260 (571.5) F WSA4 22-E

225 TPC3533171S 41.52 (105.5) 33.06 (84.0) 29.87 (75.9) 1410 (639.6) F WSA4 22-E

300 TPC3533181S 45.70 (116.1) 39.50 (100.3) 35.50 (90.2) 1860 (843.7) F WSA5 22-E

500 TPC3533191S 62.95 (159.9) 54.00 (137.2) 41.88 (106.4) 3350 (1519.5) F WSA7 22-G

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

APPROX. DIMENSIONS ② APPROX. TYPE MTG. WEATHER Wiring Diagrams &

kVA CATALOG NO. Inches (Cm.) SHIP WEIGHT W – Wall SHIELD Design Figures

HEIGHT WIDTH DEPTH Lbs. (Kg.) F – Floor P/N Begin on Page 154

15.0 TPC3533113S 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 350 (158.8) 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 35.38 (89.9) 31.90 (81.0) 26.88 (68.3) 560 (254.0) F WSA3 22-E

112.5 TPC3533153S 41.52 (105.5) 33.06 (84.0) 29.87 (75.9) 1000 (453.6) F WSA4 22-E

150.0 TPC3533163S 41.52 (105.5) 33.06 (84.0) 29.87 (75.9) 1220 (553.4) F WSA4 22-E

225.0 TPC3533173S 41.52 (105.5) 33.06 (84.0) 29.87 (75.9) 1385 (628.2) F WSA4 22-E

300.0 TPC3533183S 45.70 (116.1) 39.50 (100.3) 35.50 (90.2) 1820 (825.5) F WSA5 22-E

500.0 TPC3533193S 62.95 (159.9) 54.00 (137.2) 41.88 (106.4) 3250 (1474.2) F WSA7 22-G

Design Figures, Wiring Diagrams,

Accessories, Specification

Guides, Industry Standards and

Alphanumerical Catalog

Number Index

Design Figures .........................................................122

Wiring Diagrams ..............................................123–132

Transformer Accessories ................................133–134

Specification Guides .......................................135–138

Industry Standards ..................................................139

Alphanumerical Catalog Number Index .........140–144

ACME®

TRANSFORMER™

GENERAL

INFORMATION

GENERAL

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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GENERAL ACME® TRANSFORMER™ DESIGN FIGURES

122

Design Figures

Sections I, II, III & IV

Design A

Design B

Design E

Design H

Design C Design D

Design F Design G

Design I

These drawings are for reference only.

Contact factory for certified drawings.

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GENERAL ELECTRICAL CONNECTION DIAGRAMS

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GENERAL ACME® TRANSFORMER™ WIRING DIAGRAMS

PRIMARY: 240 X 480

SECONDARY: 120/240

TAPS: None

X4 X1

X2 X3

PRIMARY: 240 X 480

SECONDARY: 120/240

2, 21

/2% ANFC, 4, 21

/2% BNFC

X4 X1

H10

H2 H3

X2 X3

H5 H6

H8H7

H4 H9

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

216 H1-H10 H1 to H9

H10 to H2

228 H1-H10 H1 to H8

H10 to H3

240 H1-H10 H1 to H7

H10 to H4

252 H1-H10 H1 to H6

H10 to H5

432 H1-H10 H2 to H9

444 H1-H10 H3 to H9

456 H1-H10 H3 to H8

468 H1-H10 H4 to H8

480 H1-H10 H4 to H7

492 H1-H10 H5 to H7

504 H1-H10 H5 to H6

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X3-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 240 X 480

SECONDARY: 120/240

TAPS:

2, 21

/2% ANFC, 2, 21

/2% BNFC

X4 X1

X2 X3

45678

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

480 H1-H4 H2 to H3

240 H1-H3 &

H2-H4

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 208

SECONDARY: 120/240

TAPS: 2, 5% BNFC

X4 X1

X2 X3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

208 H1 & H4

198 H1 & H3

187 H1 & H2

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

216 H1-H4 H1, H3, 8 &

H2, H4, 1

228 H1-H4 H1, H3, 7 &

H2, H4, 2

240 H1-H4 H1, H3, 6 &

H2, H4, 3

252 H1-H4 H1, H3, 5 &

H2, H4, 4

432 H1-H4 H2, 1 & H3, 8

444 H1-H4 H2, 2 & H3, 8

456 H1-H4 H2, 2 & H3, 7

468 H1-H4 H2, 3 & H3, 7

480 H1-H4 H2, 3 & H3, 6

492 H1-H4 H2, 4 & H3, 6

504 H1-H4 H2, 4 & H3, 5

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 240 X 480

SECONDARY: 120/240

TAPS: 2, 21

/2% ANFC, 2, 21

/2% BNFC

X4 X1

H2 H3

X2 X3

H4 H5

H6 H7

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

252 H1-H8 H1 to H5

H4 to H8

240 H1-H7 H1 to H5

H3 to H7

228 H1-H6 H1 to H5

H2 to H6

504 H1-H8 H4 to H5

492 H1-H8 H3 to H5

480 H1-H7 H3 to H5

468 H1-H7 H2 to H5

456 H1-H6 H2 to H5

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 240 X 480

SECONDARY: 120/240

TAPS: None

X4 X1

X2 X3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

480 H1-H4 H2 to H3

240 H1-H3 &

H2-H4

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

1 2 3

Wiring DiagramsSections I, II, III & IV

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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GENERAL ACME® TRANSFORMER™ WIRING DIAGRAMS

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PRIMARY: 120 x 240

SECONDARY: 120/240

TAPS: None

X4 X1

X2 X3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

240 H1-H4 H2 to H3

120 H1-H3 &

H2-H4

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 600

SECONDARY: 120/240

TAPS: None

X4 X1

X2 X3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

600 H1-H2

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 600

SECONDARY: 120/240

TAPS: None

X4 X1

X2 X3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

600 H1-H2

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 277

SECONDARY: 120/240

TAPS: 2, 5% BNFC

X4 X1

X2 X3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

277 H1 & H4

263 H1 & H3

250 H1 & H2

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

EXPORT MODEL

PRIMARY: 190-220 x 380-440

SECONDARY: 120/240

X4 X1

X2 X3

H2 H4

H7 H8 H9

H10

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

190 H1 & H7 H1 to H6

H2 to H7

200 H1 & H8 H1 to H6

H3 to H8

208 H1 & H9 H1 to H6

H4 to H9

220 H1 & H10 H1 to H6

H5 to H10

380 H1 & H7 H2 & H6

400 H1 & H8 H3 & H6

416 H1 & H9 H4 & H6

440 H1 & H10 H5 & H6

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 240

SECONDARY: 120/240

TAPS: None

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

240 1-3

Secondary Volts

240 1-3

120 1-2 or 2-3

120/240 1-2-3

PRIMARY: 600

SECONDARY: 120/240

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X4 X1

X2 X3

3456

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

540 H1-H2 1-6

555 H1-H2 1-5

570 H1-H2 2-6

585 H1-H2 2-5

600 H1-H2 3-5

615 H1-H2 2-4

635 H1-H2 3-4

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 600

SECONDARY: 120/240

TAPS: 2, 5% BNFC

X4 X1

X2 X3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

600 H1-H4

570 H1-H3

540 H1-H2

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

7 8 9

10 11

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GENERAL ACME® TRANSFORMER™ WIRING DIAGRAMS

PRIMARY: 240 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 5% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

240 H1, H2, H3 1

228 H1, H2, H3 2

216 H1, H2, H3 3

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

EXPORT MODEL

PRIMARY: 190-220 x 380-440

SECONDARY:120/240

X4 X1

X2 X3

45678

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

190 H1 & H4 H1, H3, 8 &

H2, H4, 1

200 H1 & H4 H1, H3, 7 &

H2, H4, 2

208 H1 & H4 H1, H3, 6 &

H2, H4, 3

220 H1 & H4 H1, H3, 5 &

H2, H4, 4

380 H1 & H4 H2, H3, 1, 8

400 H1 & H4 H2, H3, 2, 7

416 H1 & H4 H2, H3, 3, 6

440 H1 & H4 H2, H3, 4, 5

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

Input Connections Insulate

Volts Connect Isolate

120 1, 3, 6, 8 to A 4, 9

2, 5, 7, 10 to B

1, 6 to A

208 4, 9 to B 5, 10

2, 3 to C

7, 8 to D

1, 6 to A

240 5, 10 to B 4, 9

2, 3 to C

7, 8 to D

1 to A

10 to B

480 2, 3 to C 4, 9

5, 6 to D

7, 8 to E

Output Connections Output

Lines

Volts Connect To

11 to F

120 12 to G F, G

14 to H

11 to F

120/240 12 to G F, G, H

14 to H

11 to F

208 12 to G F, H

13 to H

11 to F

240 12 to G F, H

14 to H

NOTE: To prevent externally shorting, all leads marked

“INSULATE” must be individually capped with wire

nuts or equivalent. Insulate leads individually!

POWER LINE CONDITIONER

INPUT LINE

PRIMARY: 208 Volts

SECONDARY: 120/240 Volts

TAPS:

PRIMARY: 240 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 21

/2% ANFC, 2, 21

/2% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

252 H1, H2, H3 1

246 H1, H2, H3 2

240 H1, H2, H3 3

234 H1, H2, H3 4

228 H1, H2, H3 5

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 380 Volts Delta

SECONDARY: 220Y/127 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

123

456

X1X3X2X4

123

H2 H3

X2X1

4567 1234567 1234567

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

218 H1 & H2 3 to 4

213 H1 & H2 2 to 4

208 H1 & H2 3 to 5

203 H1 & H2 2 to 5

198 H1 & H2 1 to 5

192 H1 & H2 2 to 6

187 H1 & H2 1 to 6

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

399 H1, H2, H3 1

390 H1, H2, H3 2

380 H1, H2, H3 3

371 H1, H2, H3 4

361 H1, H2, H3 5

352 H1, H2, H3 6

342 H1, H2, H3 7

Secondary Volts

220 X1, X2,X3

127 X1 to X0

1 phase X2 to X0

X3 to X0

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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PRIMARY: 480 Volts Delta

SECONDARY: 240 Volts Delta/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X1 X2 X3X4

H1 H3H2

35 246 2 46

35 2 46

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1 to 2

492 H1, H2, H3 2 to 3

480 H1, H2, H3 1 to 4

468 H1, H2, H3 3 to 4

456 H1, H2, H3 1 to 6

444 H1, H2, H3 3 to 6

432 H1, H2, H3 5 to 6

Secondary Volts

240 X1, X2, X3

120 X1, X4 or

X2, X4

PRIMARY: 480 Volts Delta

SECONDARY: 240 Volts Delta/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

492 H1, H2, H3 2

480 H1, H2, H3 3

468 H1, H2, H3 4

456 H1, H2, H3 5

444 H1, H2, H3 6

432 H1, H2, H3 7

Secondary Volts

240 X1, X2, X3

120 X1, X4 or

X2, X4

PRIMARY: 480 Volts Delta

SECONDARY: 240 Volts Delta/120 Volts

TAPS: 2, 5% BNFC

X1 X2 X3

H1 H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

480 H1, H2, H3 1

456 H1, H2, H3 2

432 H1, H2, H3 3

Secondary Volts

240 X1, X2, X3

120 X1, X4 or

X2, X4

PRIMARY: 600 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 5% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

600 H1, H2, H3 1

570 H1, H2, H3 2

540 H1, H2, H3 3

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

X1 X2 X3

H1 H3H2

PRIMARY: 480 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 5% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

480 H1, H2, H3 1

456 H1, H2, H3 2

432 H1, H2, H3 3

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 480 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

492 H1, H2, H3 2

480 H1, H2, H3 3

468 H1, H2, H3 4

456 H1, H2, H3 5

444 H1, H2, H3 6

432 H1, H2, H3 7

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 120/208/240/277 Volts

SECONDARY: 120/240 Volts

H1 H5

H4H3

22 23

PRIMARY: 380 Volts Delta

SECONDARY: 220Y/127 Volts

TAPS: 2, 5% BNFC

123 123

123

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

277 H1, H5

240 H1, H4

208 H1, H3

120 H1, H2

Secondary Volts

120 X1 to X3 X1-X4

X2 to X4

120/240 X2 to X3 X1-X2-X4

240 X2 to X3 X1-X4

PRIMARY: 600 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

630 H1, H2, H3 1

615 H1, H2, H3 2

600 H1, H2, H3 3

585 H1, H2, H3 4

570 H1, H2, H3 5

555 H1, H2, H3 6

540 H1, H2, H3 7

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

380 H1, H2, H3 1

361 H1, H2, H3 2

342 H1, H2, H3 3

Secondary Volts

220 X1, X2, X3

127 X1 to X0

1 phase X2 to X0

X3 to X0

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GENERAL ELECTRICAL CONNECTION DIAGRAMS

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GENERAL ACME® TRANSFORMER™ WIRING DIAGRAMS

PRIMARY: 600 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X1 X2 X3X0

H1 H3H2

35 246 2 46

35 2 46

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

630 H1, H2, H3 1 to 2

615 H1, H2, H3 2 to 3

600 H1, H2, H3 1 to 4

585 H1, H2, H3 3 to 4

570 H1, H2, H3 1 to 6

555 H1, H2, H3 3 to 6

540 H1, H2, H3 5 to 6

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 480 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

492 H1, H2, H3 2

480 H1, H2, H3 3

468 H1, H2, H3 4

456 H1, H2, H3 5

444 H1, H2, H3 6

432 H1, H2, H3 7

Secondary Volts

480 X1, X2, X3

277 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 480 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X1 X2 X3X0

H1 H3H2

35 246 2 46

35 2 46

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1 to 2

492 H1, H2, H3 2 to 3

480 H1, H2, H3 1 to 4

468 H1, H2, H3 3 to 4

456 H1, H2, H3 1 to 6

444 H1, H2, H3 3 to 6

432 H1, H2, H3 5 to 6

Secondary Volts

480 X1, X2, X3

277 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 380 Volts Delta

SECONDARY: 208/120 Volts

TAPS: 2-21

/2% ANFC and BNFC

123

H2 H3

X2X1

45 12345 12345

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

399 H1, H2, H3 1

390 H1, H2, H3 2

380 H1, H2, H3 3

371 H1, H2, H3 4

361 H1, H2, H3 5

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 460 Volts Delta

SECONDARY: 460Y/266 Volts

TAPS: 1-5% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

483 105 1

460 100 2

437 95 3

Secondary Volts

460 X1, X2, X3

266 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 460 Volts Delta

SECONDARY: 460Y/266 Volts

TAPS: 2-21

/2% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

483 105 1

472 102.5 2

460 100 3

449 97.5 4

437 95 5

Secondary Volts

460 X1, X2, X3

266 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 460 Volts Delta

SECONDARY: 460Y/266 Volts

TAPS: 2-21

/2% ANFC and BNFC

X1 X2 X3X0

H1 H3H2

35 246 2 46

35 2 46

Primary Connect Leads

Volts % to Tap No.

483 105 1 to 2

472 102.5 2 to 3

460 100 1 to 4

449 97.5 3 to 4

437 95 4 to 5

Secondary Volts

460 X1, X2, X3

266 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 460 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 1-5% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

483 105 1

460 100 2

437 95 3

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 460 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 2-21

/2% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

483 105 1

472 102.5 2

460 100 3

449 97.5 4

437 95 5

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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PRIMARY: 575 Volts Delta

SECONDARY: 460Y/266 Volts

TAPS: 1-5% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

604 105 1

575 100 2

546 95 3

Secondary Volts

460 X1, X2, X3

266 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 575 Volts Delta

SECONDARY: 460Y/266 Volts

TAPS: 2-21

/2% ANFC and BNFC

X1 X2 X3X0

H1 H3H2

35 246 2 46

35 2 46

Primary Connect Leads

Volts % to Tap No.

604 105 1 to 2

589 102.5 2 to 3

575 100 1 to 4

561 97.5 3 to 4

546 95 4 to 5

Secondary Volts

460 X1, X2, X3

266 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 575 Volts Delta

SECONDARY: 460Y/266 Volts

TAPS: 2-21

/2% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

604 105 1

589 102.5 2

575 100 3

561 97.5 4

546 95 5

Secondary Volts

460 X1, X2, X3

266 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 575 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 1-5% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

604 105 1

575 100 2

546 95 3

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 575 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 2-21

/2% ANFC and BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

604 105 1

589 102.5 2

575 100 3

561 97.5 4

546 95 5

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 575 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 2-21

/2% ANFC and BNFC

X1 X2 X3X0

H1 H3H2

35 246 2 46

35 2 46

Primary Connect Leads

Volts % to Tap No.

604 105 1 to 2

589 102.5 2 to 3

575 100 1 to 4

561 97.5 3 to 4

546 95 4 to 5

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

218 X1, X2, X3 1

213 X1, X2, X3 2

208 X1, X2, X3 3

203 X1, X2, X3 4

198 X1, X2, X3 5

Secondary Volts

480 H1, H2, H3

277 H1 to H0

1 phase H2 to H0

H3 to H0

PRIMARY: 208 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 21

/2% ANFC, 2, 21

/2% BNFC

H2 H3

X3X2

PRIMARY: 460 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 2-21

/2% ANFC and BNFC

X1 X2 X3X0

H1 H3H2

35 246 2 46

35 2 46

Primary Connect Leads

Volts % to Tap No.

483 105 1 to 2

472 102.5 2 to 3

460 100 1 to 4

449 97.5 3 to 4

437 95 4 to 5

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

437 H1, H2, H3 1

426 H1, H2, H3 2

416 H1, H2, H3 3

406 H1, H2, H3 4

395 H1, H2, H3 5

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 416 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 21

/2% ANFC, 2, 21

/2% BNFC

X2 X3

H3H2

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GENERAL ELECTRICAL CONNECTION DIAGRAMS

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GENERAL ACME® TRANSFORMER™ WIRING DIAGRAMS

PRIMARY: 600 Volts Delta

SECONDARY: 600Y/347 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X2 X3

H3H2

PRIMARY: 208 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 5% BNFC

H2 H3

123

H1H0 Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

630 H1, H2, H3 1

615 H1, H2, H3 2

600 H1, H2, H3 3

585 H1, H2, H3 4

570 H1, H2, H3 5

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 600 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2,

% ANFC, 2,

% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

630 H1, H2, H3 1

615 H1, H2, H3 2

600 H1, H2, H3 3

585 H1, H2, H3 4

570 H1, H2, H3 5

555 H1, H2, H3 6

540 H1, H2, H3 7

Secondary Volts

380 X1, X2, X3

220 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 600 Volts Delta

SECONDARY: 380Y/220 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

630 H1, H2, H3 1

615 H1, H2, H3 2

600 H1, H2, H3 3

585 H1, H2, H3 4

570 H1, H2, H3 5

555 H1, H2, H3 6

540 H1, H2, H3 7

Secondary Volts

600 X1, X2, X3

347 X1 to X0

1 phase X2 to X0

X3 to X0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

630 H1, H2, H3 1

615 H1, H2, H3 2

600 H1, H2, H3 3

585 H1, H2, H3 4

570 H1, H2, H3 5

555 H1, H2, H3 6

540 H1, H2, H3 7

Secondary Volts

480 X1, X2, X3

277 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 600 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

600 H1, H2, H3 1

570 H1, H2, H3 2

540 H1, H2, H3 3

Secondary Volts

380 X1, X2, X3

220 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 600 Volts Delta

SECONDARY: 380Y/220 Volts

TAPS: 2, 5% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

600 H1, H2, H3 1

570 H1, H2, H3 2

540 H1, H2, H3 3

Secondary Volts

600 X1, X2, X3

347 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 600 Volts Delta

SECONDARY: 600Y/347 Volts

TAPS: 2, 5% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

600 H1, H2, H3 1

570 H1, H2, H3 2

540 H1, H2, H3 3

Secondary Volts

480 X1, X2, X3

277 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 600 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 5% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

208 X1, X2, X3 1

198 X1, X2, X3 2

187 X1, X2, X3 3

Secondary Volts

480 H1, H2, H3

277 H1 to H0

1 phase H2 to H0

H3 to H0

H1 X3

H3H2

H4 H7

H5 H8 H6 H9

PRIMARY: 600 Volts

SECONDARY: 480 Volts

TAPS: 2, 5% BNFC

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

277 220 X1 to X0

1 phase 1 phase X2 to X0

X3 to X0

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

190 H1& H7 H1 to H6

H2 to H7

208 H1 & H8 H1 to H6

H3 to H8

220 H1 & H9 H1 to H6

H4 to H9

240 H1& H10 H1 to H6

H5 to H10

380 H1 & H7 H2 to H6

416 H1 & H8 H3 to H6

440 H1 & H9 H4 to H6

480 H1 & H10 H5 to H6

Secondary Volts

240 X2 to X3 X1 - X4

120/240 X2 to X3 X1- X2 - X4

120 X1 to X3 X1 - X4

X2 to X4

PRIMARY: 190/208/220/240 x

380/416/440/480 Volts

SECONDARY: 120/240 Volts

PRIMARY: 230 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 2-21

/2% ANFC and 2-21

/2% BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

242 105 1

236 102.5 2

230 100 3

224 97.5 4

219 95 5

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 208 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2-5% BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

208 100 1

198 95 2

187 90 3

Secondary Volts

208 X1, X2, X3

120 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 230 Volts Delta

SECONDARY: 230Y/133 Volts

TAPS: 1-5% ANFC and 1-5% BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

241 105 1

230 100 2

218 95 3

Secondary Volts

230 X1, X2, X3

133 X1 & X0

1 phase X2 & X0

X3 & X0

PRIMARY: 208 Volts

SECONDARY: 120/240 Volts

TAPS: 2, 5% BNFC

123

456

X1X3X2X4

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

208 H1 & H2 3 to 4

198 H1 & H2 2 to 5

187 H1 & H2 1 to 6

Secondary Volts

240 X2 to X3 X1-X4

120/240 X2 to X3 X1-X2-X4

120 X1 to X3 X1-X4

X2 to X4

PRIMARY: 600 Volts

SECONDARY: 480 Volts

TAPS: 2, 5% BNFC

H3H2

123123123

Connect Connect

Primary Alt Primary Inter- Secondary

Volts Rating Lines To Connect Lines To

600 480 H1, H2, H3 1

570 456 H1, H2, H3 2

540 432 H1, H2, H3 3

Secondary Volts

480 380 X1, X2, X3

277 220 X1 to X0

1 phase 1 phase X2 to X0

X3 to X0

PRIMARY: 120/208/240/277 Volts

SECONDARY: 120/240 Volts

H6 H7

X1X3X2X4

H2 H3

H4 H5

H5 H6

H10

X4 X3 X2 X1

H5 H6

H10

X4 X3 X2 X1

PRIMARY: 190/200/208/220 x

380/400/416/440 Volts

SECONDARY: 110/220 Volts

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

120 H1 & H8 H1 to H6

H3 to H8

208 H1 & H8 H2 to H7

240 H1 & H8 H3 to H6

277 H1 & H8 H4 to H5

Secondary Volts

240 X2 to X3 X1 & X4

120/240 X2 to X3 X1, X3, X4

120 X1 to X3 X1 & X4

X2 to X4

PRIMARY: 208 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2-21

/2% ANFC and 2-21

/2% BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

218 105 1

213 102.5 2

208 100 3

203 97.5 4

198 95 5

Secondary Volts

208 X1, X2, X3

120 X1 & X0

1 phase X2 & X0

X3 & X0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

190 H1 & H7 H1 to H6

H2 to H7

200 H1 & H8 H1 to H6

H3 to H8

208 H1 & H9 H1 to H6

H4 to H9

220 H1 & H10 H1 to H6

H5 to H10

380 H1 & H7 H2 to H6

400 H1 & H8 H3 to H6

415 H1 & H9 H4 to H6

440 H1 & H10 H5 to H6

Secondary Volts

220 X2 to X3 X1-X4

110/220 X2 to X3 X1-X2-X4

110 X1 to X3 X1-X4

X2 to X4

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GENERAL ELECTRICAL CONNECTION DIAGRAMS

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GENERAL ACME® TRANSFORMER™ WIRING DIAGRAMS

PRIMARY: 480 Volts Delta

SECONDARY: 240 Volts Delta/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X1 X2 X3

H1 H3H2

PRIMARY: 600 Volts Delta

SECONDARY: 240 Delta/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X1 X2 X3

H1 H3H2

Primary Connect Leads

Volts % to Tap No.

630 105 1

615 102.5 2

600 100 3

585 97.5 4

570 95 5

555 92.5 6

540 90 7

Secondary Volts

240 X1, X2, X3

120 X1, X4, or

X2, X4

PRIMARY: 240 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 5% BNFC

123 123

123

PRIMARY: 240 Volts Delta

SECONDARY: 480Y/277 Volts

TAPS: 2, 21

/2% ANFC & BNFC

PRIMARY: 480 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2-21

/2% ANFC, 4, 21

/2% BNFC

X2 X3

H3H2

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

492 H1, H2, H3 2

480 H1, H2, H3 3

468 H1, H2, H3 4

456 H1, H2, H3 5

444 H1, H2, H3 6

432 H1, H2, H3 7

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 416 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 5% BNFC

X2 X3

123

X1X0

PRIMARY: 380 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 21

/2% ANFC, 4, 21

/2% BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

399 105 1

390 102.5 2

380 100 3

371 97.5 4

361 95 5

352 92.5 6

342 90 7

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 440 Volts Delta

SECONDARY: 220Y/127 Volts

TAPS: 2, 5% ANFC & BNFC

X2X1

Primary Connect Leads

Volts % to Tap No.

484 110 1

462 105 2

440 100 3

418 95 4

396 90 5

Secondary Volts

220 X1, X2, X3

127 X1 to X0

1 phase X2 to X0

X3 to X0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

492 H1, H2, H3 2

480 H1, H2, H3 3

468 H1, H2, H3 4

456 H1, H2, H3 5

444 H1, H2, H3 6

432 H1, H2, H3 7

Secondary Volts

240 X1, X2, X3

120 X1, X4, or

X2, X4

Primary Connect Leads

Volts % to Tap No.

240 100 1

228 95 2

216 90 3

Secondary Volts

480 H1, H2, H3

277 H1 to H0

1 phase H2 to H0

H3 to H0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

437 H1, H2, H3 1

416 H1, H2, H3 2

395 H1, H2, H3 3

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

252 X1, X2, X3 1

246 X1, X2, X3 2

240 X1, X2, X3 3

234 X1, X2, X3 4

228 X1, X2, X3 5

Secondary Volts

480 H1, H2, H3

277 H1 to H0

1 phase H2 to H0

H3 to H0

H1 H2 H3

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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PRIMARY: 190/200/210/220/

230/240 Volts Delta

SECONDARY: 400Y/231 Volts

PRIMARY: 400 Volts Delta

SECONDARY: 240 Volts Delta/120 Volts

TAPS: 2, 5% BNFC

123 123

123

X1 X4

H1 H2 H3

X2 X3

PRIMARY: 277/480 Volts

SECONDARY: 208/277 Volts

TAPS: NONE

H1 H6

H2 H3

X5 X2

H1 H2

X2X1

666

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

240 H1, H2, H3 1

230 H1, H2, H3 2

220 H1, H2, H3 3

210 H1, H2, H3 4

200 H1, H2, H3 5

190 H1, H2, H3 6

Secondary Volts

400 X1, X2, X3

231 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 190/200/210/220/

230/240 Volts Delta

SECONDARY: 400Y/231 Volts

H2 H3

X3X2

56 66

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

400 H1, H2, H3 1

380 H1, H2, H3 2

360 H1, H2, H3 3

Secondary Volts

240 X1, X2, X3

120 X1 to X4 or

X2 to X4

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

277 H1 - H5 H2 to H4

480 H1 - H6 H3 to H4

Secondary Volts

208 X2 to X4 X1 - X5

277 X3 to X4 X1 - X6

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

240 X1, X2, X3 1

230 X1, X2, X3 2

220 X1, X2, X3 3

210 X1, X2, X3 4

200 X1, X2, X3 5

190 X1, X2, X3 6

Secondary Volts

400 H1, H2, H3

231 H1 to H0

1 phase H2 to H0

H3 to H0

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

277 H1 & H2

480 H1 & H3

Secondary Volts

208 X1 to X2

277 X1 to X3

H1 H2

X2X1

312

PRIMARY: 480 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 1-5% ANFC & 1-5% BNFC

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

480 H1, H2, H3 2

456 H1, H2, H3 3

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

PRIMARY: 480 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2, 2 1

/2% ANFC, 2, 21

/2% BNFC

H1 H2 H3

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

504 H1, H2, H3 1

492 H1, H2, H3 2

480 H1, H2, H3 3

468 H1, H2, H3 4

456 H1, H2, H3 5

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

123 123

123

X1 X4

456

7456

PRIMARY: 400 Volts Delta

SECONDARY: 240 Delta/120 Volts

TAPS: 2, 2 1

/2% ANFC, 4, 21

/2% BNFC

Connect Connect

Primary Primary Inter- Secondary

Volts Lines To Connect Lines To

420 H1, H2, H3 1

410 H1, H2, H3 2

400 H1, H2, H3 3

390 H1, H2, H3 4

380 H1, H2, H3 5

370 H1, H2, H3 6

360 H1, H2, H3 7

Secondary Volts

240 X1, X2, X3

120 X1 to X4 or

X2 to X4

PRIMARY: 277/480 Volts

SECONDARY: 208/277 Volts

TAPS: NONE

PRIMARY: 380 Volts Delta

SECONDARY: 208Y/120 Volts

TAPS: 2-21

/2% ANFC and 2-21

/2% BNFC

X2 X3

H3H2

Primary Connect Leads

Volts % to Tap No.

399 105 1

390 102.5 2

380 100 3

371 97.5 4

361 95 5

Secondary Volts

208 X1, X2, X3

120 X1 to X0

1 phase X2 to X0

X3 to X0

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

133

GENERAL ELECTRICAL CONNECTION DIAGRAMS

133

GENERAL ACME® TRANSFORMER™ ACCESSORIES

Suffix Tap Arrangement

– 1S Two 5% (–) BNFC Taps

One 5% (+) ANFC Tap

– 2S and

One 5% (–) BNFC Tap

Two 2-1/2% (+) ANFC Taps

– 3S and

Four 2-1/2%(–) BNFC Taps

Two 2-1/2% (+) ANFC Taps

– 4S and

Two 2-1/2% (–) BNFC Taps

Two 5% (+) ANFC Taps

– 5S and

Two 5% (–) BNFC Taps

kVA Mounting Position Illustration

27.0 – Bottom of

220.0 the case Figure 1

275.0– Top Flange of the

750 Core Bracket Figure 2

COIL 1 COIL 3

THERMAL SWITCH

.625 (1.6 cm) H DIA.

EPOXY-RING

CORE

EPOXY LAYER

TERMINAL BLOCK

.5H

(1.3 cm)

COIL 2

Figure 2

COIL 1 COIL 2COIL 3

CORE

BOTTOM OF CASE

Required on:

Ventilated Units:

1Ø, 37.5 and 50 kVA

3Ø, 30, 45 and 75 kVA

Catalog Number: PL-79912

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

The catalog number suffix provides tap

information as outlined in chart below:

If the catalog number has no suffix,

there are no taps available.

EXAMPLE: T-2-53019-3S

The suffix 3S indicates the unit has two 2.5%

(+) ANFC taps and four 2.5% (–) BNFC taps.

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.

Figure 1

Thermal Switch Kits

Catalog Number: PL-79900

Wall Mounting Brackets

Standard Taps

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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

134

GENERAL ACME® TRANSFORMER™ ACCESSORIES

134

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.

Lug Kits Weather Shields

Spare Parts

TOP COVER

SIDE PANEL

FRONT/REAR PANEL

Kit Contains

Transformer Wire Range

Catalog No. kVA Size Al or Cu Qty Nuts & Bolts Qty

Lug 1 371/2 1-phase 2 -14 8 1/4 - 20 X 3/4 8

27 - 45 3-phase 250 mcm - 6 4

Lug 2 50 - 75 1-phase 250 mcm - 6 12 1

/4 - 20 x 3/4 8

51 - 118 3-phase 1

/4 - 20 x 13/4 8

Lug 3 100 -167 1-phase 250 mcm - 6 3 1

/4 - 20 x 3/4 3

145 - 300 3-phase 600 mcm - 2 22 3/8 - 16 x 2 16

Lug 4 440 - 660 3-phase 600 mcm - 2 29 3/8 - 16 x 2 8

CATALOG NO. APPROX. SHIP WEIGHT

Lbs. (Kg.)

SA1701319 14 (6.4)

SA2701319 16 (7.3)

SA3701319 20 (9.1)

SA4701319 34 (15.4)

SA6701319 17 (7.7)

CATALOG NO. APPROX. SHIP WEIGHT

Lbs. (Kg.)

SA1701320 11 (5.0)

SA2701320 13 (5.9)

SA3701320 19 (8.6)

SA4701320 34 (15.4)

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)

CATALOG NO. APPROX. SHIP WEIGHT

Lbs. (Kg.)

SA1701321 13 (5.9)

SA2701321 15 (6.8)

SA3701321 21 (9.5)

SA4701321 35 (15.9)

SA7701321 16 (7.3)

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

135

GENERAL ELECTRICAL CONNECTION DIAGRAMS

135

GENERAL ACME® TRANSFORMER™ SPECIFICATIONS

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.

(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.

Specification Guide for

Dry Type Distribution Transformers

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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

136

GENERAL ACME® TRANSFORMER™ SPECIFICATIONS

136

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.

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.

(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.

Specification Guide for Single & Three Phase

Encapsulated Transformers

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

137

GENERAL ELECTRICAL CONNECTION DIAGRAMS

137

GENERAL ACME® TRANSFORMER™ SPECIFICATIONS

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 non-

linear 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*

* Sound levels are based on transformers with a K-Factor of

4 and a temperature rise of 150 degrees centigrade.

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.

1.0.7 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.

(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.

Specification Guide for Non-Linear Load

Isolation® Transformers

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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

138

GENERAL ACME® TRANSFORMER™ SPECIFICATIONS

138

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

(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.

(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.

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 insula-

tion 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 tran-

sients.

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.

Specification Guide for Drive Isolation Transformers

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139

GENERAL ELECTRICAL CONNECTION DIAGRAMS

139

GENERAL ACME® TRANSFORMER™ INDUSTRY STANDARDS

Primary Secondary

Type of Number of

Case Supply Phase Wires on Protection OCP Current OCP Current OCP

Voltage Secondary Required Location (AMPS) (% of rating) (AMPS) (% of rating)

>9 125 ①

1 Main 1Ø 2 Primary A < 9, > 2 167 max. Not Required

Only <2 300 max.

Primary ≥9 125 ①

2 Main 1Ø More than 2 & A & B < 9, ≥2 167 max. ≥9 125①

3Ø Not Applicable Secondary ② <2 300 max. <9 167 max.

Feeder None

3 Circuit 1Ø 2 on — Not Required Not Required

with OCP Either

Feeder

4 Circuit 1Ø More than 2 Secondary B Not Required 9 125 ①

with OCP 3Ø Not Applicable Only② <9 167 max.

Listed 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))

BLOAD

SUPPLY

VOLTAGE

OCP LOCATION

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).

Acme® Transformer™ Products vs. U/L Insulation Systems & U/L Standards

Transformer Industry Standards

Underwriters’ Laboratories, Inc. is an independent not for profit

organization which tests products for safety.

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.

The Canadian Standards Association is the Canadian

counterpart to Underwriters’ Laboratories. Acme’s

transformers are also constructed and rated to comply with

CSA Standards C22.2-47 and C22.2-66 and carry the CSA

Certification Label.

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

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

Acme Electric–Power Distribution Products Division has never used

polychlorinated biphenyls (PCBs) in the manufacture of our quality products.

U/L U/L U/L U/L Insulation kVA kVA

Acme Construction Acme Catalog U/L Product File Listed Insulation System Single Three

Style Product Name Standard Category Number Control # Number Temp./C Phase Phase

Enclosed General Purpose 506 XPTQ E79947V1 50B8 B3223 130 .050-.150 N/A

and Buck-Boost

Compound Filled General Purpose 506 XPTQ E79947V1 50B8 X3221 155 .25-5.0 3.0-6.0

(Encapsulated) Buck-Boost & DIT H3221 180 7.5-25.0 7.5-75.0

Panel Tran® 1062 YEFR E56936V1 N/A H3180 180 5.0 N/A

H3221 180 7.5-25.0 9.0-30.0

Swim Pool & Spa 379 HDGV E111069V1 N/A H3180 180 0.10-.30 N/A

Hardwired CVR 1012 QQFU E86492V1 6B81 B3223 130 .25-3.0 N/A

X3221 155 5.0-15.0 N/A

Portable PLC 1012 QQFU E86492V1 60B1 B3223 130 .25-2.0 N/A

Open Core & Coil Industrial Control 506 XPTQ E79947V1 50B8 B3223 130 .050-5.0 N/A

Air Cooled General Purpose 1561 XQNX E12547V3 542B C3222 220 37.5-250.0 25-1000

Ventilated & Opti-Miser® & DIT

Non Ventilated

Air Conditioning NONE NONE NONE N/A NONE 130 .085-2.0 N/A

Enclosed and Refrigeration

Appliance

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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

140

GENERAL ALPHANUMERICAL CATALOG NUMBER INDEX

140

CATALOG NO. PAGE NO.

AE010050 ................................. 70

AE010075 ................................. 70

AE010100 ................................. 70

AE010150 ................................. 70

AE010250 ................................. 70

AE010350 ................................. 70

AE010500 ................................. 70

AE020050 ................................. 70

AE020075 ................................. 70

AE020100 ................................. 70

AE020150 ................................. 70

AE020250 ................................. 70

AE020300 ................................. 70

AE020350 ................................. 70

AE020500 ................................. 70

AE020750 ................................. 70

AE030050 ................................. 70

AE030075 ................................. 70

AE030100 ................................. 70

AE030150 ................................. 70

AE030250 ................................. 70

AE030350 ................................. 70

AE030500 ................................. 70

AE030750 ................................. 70

AE060050 ................................. 71

AE060075 ................................. 71

AE060100 ................................. 71

AE060150 ................................. 71

AE060250 ................................. 71

AE060350 ................................. 71

AE060500 ................................. 71

AE060750 ................................. 71

AE070050 ................................. 71

AE070100 ................................. 71

AE070150 ................................. 71

AE070250 ................................. 71

AE070350 ................................. 71

AE070500 ................................. 71

AE070750 ................................. 71

AE120050 ................................. 71

AE120100 ................................. 71

AE120150 ................................. 71

AE120250 ................................. 71

AE120350 ................................. 71

AE120500 ................................. 71

AE120750 ................................. 71

ALRB002TBC ........................... 50

ALRB003TBC ........................... 50

ALRB004TBC ........................... 50

ALRB006TBC ........................... 50

ALRB008TBC ........................... 50

ALRB012TBC ........................... 50

ALRB016TBC ........................... 50

ALRB025TBC ........................... 50

ALRB027TBC ........................... 50

ALRB035TBC ........................... 50

ALRB045TBC ........................... 50

ALRB055TBC ........................... 50

ALRB080TBC ........................... 50

ALRB110CBC .......................... 50

ALRB130CBC .......................... 50

ALRB160CBC .......................... 50

ALRB200CBC .......................... 50

ALRB250CBC .......................... 50

ALRB300CBC .......................... 50

ALRB360CBC .......................... 50

ALRB420CBC .......................... 50

ALRB480CBC .......................... 50

ALRC002TBC ........................... 50

ALRC003TBC ........................... 50

ALRC004TBC ........................... 50

ALRC006TBC ........................... 50

ALRC008TBC ........................... 50

ALRC012TBC ........................... 50

ALRC016TBC ........................... 50

ALRC025TBC ........................... 50

ALRC027TBC ........................... 50

ALRC035TBC ........................... 50

ALRC045TBC ........................... 50

ALRC055TBC ........................... 50

ALRC080TBC ........................... 50

ALRC110CBC .......................... 50

ALRC130CBC .......................... 50

ALRC160CBC .......................... 50

ALRC200CBC .......................... 50

ALRC250CBC .......................... 50

ALRC300CBC .......................... 50

ALRC360CBC .......................... 50

ALRC420CBC .......................... 50

ALRC480CBC .......................... 50

ALRC600CBC .......................... 50

CE010050 ................................ 72

CE010075 ................................ 72

CE010100 ................................ 72

CE010150 ................................ 72

CE010250 ................................ 72

CE010350 ................................ 72

CE010500 ................................ 72

CE020050 ................................ 72

CE020100 ................................ 72

CE020150 ................................ 72

CE020250 ................................ 72

CE020350 ................................ 72

CE020500 ................................ 72

CE020750 ................................ 72

CE030050 ................................ 72

CE030075 ................................ 72

CE030100 ................................ 72

CE030150 ................................ 72

CE030250 ................................ 72

CE030350 ................................ 72

CE030500 ................................ 72

CE030750 ................................ 72

CE040050 ................................ 73

CE040100 ................................ 73

CE040150 ................................ 73

CE040250 ................................ 73

CE040350 ................................ 73

CE040500 ................................ 73

CE040750 ................................ 73

CE050050 ................................ 73

CE050150 ................................ 73

CE050250 ................................ 73

CE050350 ................................ 73

CE050500 ................................ 73

CE050750 ................................ 73

CE060050 ................................ 73

CE060075 ................................ 73

CE060100 ................................ 73

CE060150 ................................ 73

CE060250 ................................ 73

CE060300 ................................ 73

CE060350 ................................ 73

CE060500 ................................ 73

CE060750 ................................ 73

CMT533124S ........................... 35

CMT533134S ........................... 35

CMT533144S ........................... 35

CMT533154S ........................... 35

CMT533164S ........................... 35

CMT533174S ........................... 35

DTFA0112S .............................. 47

DTFA01184S ............................ 47

DTFA0142S .............................. 47

DTFA01454S ............................ 47

DTFA01754S ............................ 47

DTFA0202S .............................. 47

DTFA02204S ............................ 47

DTFA0274S .............................. 47

DTFA0344S .............................. 47

DTFA0404S .............................. 47

DTFA0514S .............................. 47

DTFA0634S .............................. 47

DTFA0754S .............................. 47

DTFA0934S .............................. 47

DTFA72S .................................. 47

DTGA002754S ......................... 46

DTGA0112S ............................. 46

DTGA01184S ........................... 46

DTGA0142S ............................. 46

DTGA01454S ........................... 46

DTGA01754S ........................... 46

DTGA0202S ............................. 46

DTGA02204S ........................... 46

DTGA0274S ............................. 46

DTGA03304S ........................... 46

DTGA0344S ............................. 46

DTGA0404S ............................. 46

DTGA0514S ............................. 46

DTGA0634S ............................. 46

DTGA0754S ............................. 46

DTGA0934S ............................. 46

DTGA72S ................................. 46

DTGB002754S ......................... 46

DTGB008804S ......................... 46

DTGB0112S ............................. 46

DTGB01184S ........................... 46

DTGB0142S ............................. 46

DTGB01454S ........................... 46

DTGB01754S ........................... 46

DTGB0202S ............................. 46

DTGB02204S ........................... 46

DTGB0274S ............................. 46

DTGB03304S ........................... 46

DTGB0344S ............................. 46

DTGB0404S ............................. 46

DTGB04404S ........................... 46

DTGB0514S ............................. 46

DTGB05504S ........................... 46

DTGB0634S ............................. 46

DTGB06604S ........................... 46

DTGB0754S ............................. 46

DTGB07704S ........................... 46

DTGB0934S ............................. 46

DTGB72S ................................. 46

DTGB9902S ............................. 46

DTHA002754S ......................... 46

DTHA0112S ............................. 46

DTHA01184S ........................... 46

DTHA0142S ............................. 46

DTHA01454S ........................... 46

DTHA0202S ............................. 46

DTHA0274S ............................. 46

DTHA03304S ........................... 46

DTHA0344S ............................. 46

DTHA0404S ............................. 46

DTHA0514S ............................. 46

DTHA0634S ............................. 46

DTHA0754S ............................. 46

DTHA0934S ............................. 46

DTHA72S ................................. 46

DTHB002754S ......................... 46

Alphanumerical Catalog Number Index

This alphanumerical listing of catalog numbers has been

prepared to help you locate the appropriate page, when only

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. CATALOG NO. PAGE NO.

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

141

GENERAL ELECTRICAL CONNECTION DIAGRAMS

141

GENERAL ALPHANUMERICAL CATALOG NUMBER INDEX

DTHB006604S ......................... 46

DTHB0112S ............................. 46

DTHB01184S ........................... 46

DTHB0142S ............................. 46

DTHB01454S ........................... 46

DTHB01754S ........................... 46

DTHB0202S ............................. 46

DTHB02204S ........................... 46

DTHB0274S ............................. 46

DTHB03304S ........................... 46

DTHB0344S ............................. 46

DTHB0404S ............................. 46

DTHB04404S ........................... 46

DTHB0514S ............................. 46

DTHB05504S ........................... 46

DTHB0634S ............................. 46

DTHB0754S ............................. 46

DTHB0934S ............................. 46

DTHB72S ................................. 46

FS1100 ..................................... 77

FS11000 ................................... 77

FS1150 ..................................... 77

FS1250 ..................................... 77

FS1350 ..................................... 77

FS150 ....................................... 77

FS1500 ..................................... 77

FS175 ....................................... 77

FS1750 ..................................... 77

FS2100 ..................................... 77

FS21000 ................................... 77

FS2150 ..................................... 77

FS21500 ................................... 77

FS22000 ................................... 77

FS2250 ..................................... 77

FS2300 ..................................... 77

FS23000 ................................... 77

FS2350 ..................................... 77

FS250 ....................................... 77

FS2500 ..................................... 77

FS275 ....................................... 77

FS2750 ..................................... 77

FS31000 ................................... 77

FS3150 ..................................... 77

FS31500 ................................... 77

FS32000 ................................... 77

FS3250 ..................................... 77

FS33000 ................................... 77

FS3350 ..................................... 77

FS350 ....................................... 77

FS3500 ..................................... 77

FS3750 ..................................... 77

GP1210000S ............................ 22

GP121000S .............................. 22

GP1215000S ............................ 22

GP12250S ................................ 22

GP123000S .............................. 22

GP125000S .............................. 22

GP12500S ................................ 22

LUG1 ...................................... 134

LUG2 ...................................... 134

LUG3 ...................................... 134

LUG4 ...................................... 134

PL112600 ................................. 64

PL112601 ................................. 64

PL112602 ................................. 64

PL112603 ................................. 64

PL112700 ................................. 64

PL112701 ................................. 64

PL112702 ................................. 64

PL112703 ................................. 64

PL112704 ................................. 64

PL112705 ................................. 64

PL112706 ................................. 64

PL112707 ................................. 64

PL79900 ................................. 133

PL79905 ................................... 78

PL79906 ................................... 78

PL79907 ................................... 78

PL79908 ................................... 78

PL79911 ................................. 133

PL79912 ................................. 133

PL79920 ................................... 75

PL79921 ................................... 75

PL79922 ................................... 75

PL79923 ................................... 75

PL79924 ................................... 75

PL79924 ............................. 64, 75

PL79925 ................................... 75

PL79926 ................................... 75

PL79927 ................................... 75

PL79928 ................................... 75

PL79928 ............................. 64, 75

PL79929 ................................... 75

PL79929 ............................. 64, 75

PL79930 ................................... 75

PL79930 ............................. 64, 75

PL79931 ................................... 75

PL79931 ............................. 64, 75

PLC85000 .............................. 115

PLC85001 .............................. 115

PLC85002 .............................. 115

PLC85003 .............................. 115

PLC85004 .............................. 115

PT061150005LS ..................... 106

PT061150005SS .................... 106

PT061150007LS ..................... 106

PT061150007SS .................... 106

PT061150010LS ..................... 106

PT061150010SS .................... 106

PT061150015LS ..................... 106

PT061150015SS .................... 106

PT061150025LS ..................... 106

PT061150025SS .................... 106

PTBA3150009LS ...................... 99

PTBA3150009SS ...................... 99

PTBA3150015LS ...................... 99

PTBA3150015SS ...................... 99

PTBA3150022LS ...................... 99

PTBA3150022SS ...................... 99

PTBA3150030LS ...................... 99

PTBA3150030SS ...................... 99

T111683 ..................... 94, 97, 100

T111684 ..................... 94, 97, 100

T111685 ..................... 94, 97, 100

T111686 ..................... 94, 97, 100

T111687 ..................... 94, 97, 100

T113073 ..................... 95, 98, 100

T113074 ..................... 95, 98, 100

T113075 ..................... 95, 98, 100

T113076 ..................... 95, 98, 100

T113077 ..................... 95, 98, 100

T137920 ..................... 96, 99, 100

T137921 ..................... 96, 99, 100

T137922 ..................... 96, 99, 100

T137923 ..................... 96, 99, 100

T137924 ..................... 96, 99, 100

T153004 ................................... 17

T153005 ................................... 17

T153006 ................................... 17

T153104 ................................... 19

T153105 ................................... 19

T153106 ................................... 19

T153929 ................................... 67

T153930 ................................... 67

T153931 ................................... 67

T160830 ................................. 112

T160831 ................................. 112

T160832 ................................. 112

T160833 ................................. 112

T160834 ................................. 112

T160835 ................................. 112

T169430 ................................. 115

T169431 ................................. 115

T169432 ................................. 115

T169433 ................................. 115

T169434 ................................. 115

T169435 ................................. 115

T169436 ................................. 115

T169437 ................................. 115

T169438 ................................. 115

T169439 ................................. 115

T179600S ................................. 84

T179603S ................................. 84

T179604S ................................. 84

T179605S ................................. 84

T179608S ................................. 84

T179609S ................................. 84

T179615S ................................. 84

T179618S ................................. 84

T179619S ................................. 84

T179620S ................................. 84

T179621S ................................. 84

T179622S ................................. 84

T179623S ................................. 84

T179624S ................................. 84

T179625S ................................. 84

T179629S ................................. 84

T179630S ................................. 84

T179631S ................................. 84

T181047 ............... 85, 94, 97, 100

T181048 ............... 85, 94, 97, 100

T181049 ............... 85, 94, 97, 100

T181050 ............... 85, 94, 97, 100

T181051 ............... 85, 94, 97, 100

T181052 ............... 85, 94, 97, 100

T181054 ..................... 95, 98, 100

T181055 ..................... 95, 98, 100

T181056 ..................... 95, 98, 100

T181057 ..................... 95, 98, 100

T181058 ..................... 95, 98, 100

T181059 ..................... 95, 98, 100

T181061 ..................... 96, 99, 100

T181062 ..................... 96, 99, 100

T181063 ..................... 96, 99, 100

T181064 ..................... 96, 99, 100

T181065 ..................... 96, 99, 100

T181066 ..................... 96, 99, 100

T181217 ................................... 67

T181219 ................................... 67

T181220 ................................... 67

T181221 ................................... 67

T181223 ................................... 67

T211688 ............... 85, 94, 97, 100

T211689 ............... 85, 94, 97, 100

T213078 ..................... 95, 98, 100

T213079 ..................... 95, 98, 100

T243570 ..................... 96, 99, 100

T243571 ..................... 96, 99, 100

T2527031 ................................. 29

T2527051 ................................. 29

T2527071 ................................. 29

T253007S ................................. 17

T253007SS ............................... 17

T253008S ................................. 17

T253008SS ............................... 17

T253009S ................................. 17

T253009SS ............................... 17

T253010S ................................. 17

T253010SS ............................... 17

T253011S ................................. 17

T253011SS ............................... 17

T253012S ................................. 17

T253012SS ............................... 17

T2530134S ............................... 17

T253013S ................................. 17

T253013SS ............................... 17

T2530144S ............................... 17

T253014S ................................. 17

T253014SS ............................... 17

T253060 ................................... 20

T253061 ................................... 20

T253062 ................................... 20

CATALOG NO. PAGE NO. CATALOG NO. PAGE NO. CATALOG NO. PAGE NO. CATALOG NO. PAGE NO.

GENERAL ELECTRICAL CONNECTION DIAGRAMS

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

142

GENERAL ALPHANUMERICAL CATALOG NUMBER INDEX

142

T253063 ................................... 20

T253064 ................................... 20

T253065 ................................... 20

T253066 ................................... 20

T253067 ................................... 20

T253108S ................................. 19

T253109S ................................. 19

T253110S ................................. 19

T253111S ................................. 19

T253112S ................................. 19

T2531131S ............................... 19

T2531141S ............................... 19

T2535153S ............................... 17

T253515SS ............................... 17

T2535163S ............................... 17

T253516SS ............................... 17

T2535173S ............................... 17

T253517SS ............................... 17

T2535183S ............................... 17

T253518SS ............................... 17

T2536151S ............................... 19

T2536161S ............................... 19

T2536171S ............................... 19

T2536181S ............................... 19

T279740S ................................. 20

T279741S ................................. 20

T279742S ................................. 20

T279743S ................................. 20

T279744S ................................. 20

T279745S ................................. 20

T279746S ................................. 20

T279747S ................................. 20

T279748S ................................. 20

T2A527121 ............................... 29

T2A527131 ............................... 29

T2A527151 ............................... 29

T2A527171 ............................... 29

T2A527181 ............................... 29

T2A527191 ............................... 29

T2A533081S ............................. 23

T2A53308SS ............................ 25

T2A533091S ............................. 23

T2A53309SS ............................ 25

T2A533101S ............................. 23

T2A53310SS ............................ 25

T2A533281S ............................. 25

T2A533291S ............................. 25

T2A533401S ............................. 25

T2A533601S ............................. 22

T2A792681S ............................. 27

T2A792691S ............................. 27

T2A792701S ............................. 27

T2A793301S ............................. 26

T2A793311S ............................. 26

T2A793321S ............................. 26

T2A795161S ............................. 27

T2A795171S ............................. 27

T2A795181S ............................. 27

T2A795523S ............................. 28

T2A795533S ............................. 28

T2A795543S ............................. 28

T2A795553S ............................. 28

T335000153S ........................... 26

T3527101 ................................. 29

T3533111S ............................... 23

T353311SS ............................... 25

T3533411S ............................... 25

T3533611S ............................... 22

T379083S ................................. 29

T3792711S ............................... 27

T3793123S ............................... 24

T379312SS ............................... 25

T3793133S ............................... 24

T379313SS ............................... 25

T3793143S ............................... 24

T379314SS ............................... 25

T3793331S ............................... 26

T3793671S ............................... 22

T3795191S ............................... 27

T3795511S ............................... 28

T3796931S ............................... 27

TA253929 ................................. 60

TA253930 ................................. 60

TA253931 ................................. 60

TA254525 ................................. 62

TA254535 ................................. 62

TA254536 ................................. 62

TA254537 ................................. 62

TA254538 ................................. 62

TA254539 ................................. 62

TA281008 ................................. 60

TA281197 ................................. 62

TA281202 ................................. 62

TA281203 ................................. 62

TA281205 ................................. 62

TA281218 ................................. 60

TA281219 ................................. 60

TA281220 ................................. 60

TA281221 ................................. 60

TA281240 ................................. 62

TA281241 ................................. 62

TA83221 ................................... 64

TA83222 ................................... 64

TA83223 ................................... 64

TA83224 ................................... 64

TA83300 ................................... 63

TA83301 ................................... 63

TA83302 ................................... 63

TA83303 ................................... 63

TA83304 ................................... 63

TA83305 ................................... 63

TA83306 ................................... 63

TA83310 ................................... 64

TA83311 ................................... 64

TA83312 ................................... 64

TA83313 ................................... 64

TA83314 ................................... 64

TA83315 ................................... 64

TA83316 ................................... 64

TB181141 ................................. 59

TB181142 ................................. 59

TB181143 ................................. 59

TB181144 ................................. 59

TB181146 ................................. 59

TB181148 ................................. 59

TB181149 ................................. 59

TB181150 ................................. 59

TB181151 ................................. 59

TB32403 ................................... 62

TB32404 ................................... 62

TB32405 ................................... 62

TB32406 ................................... 62

TB32669 ................................... 62

TB54523 ................................... 62

TB54524 ................................... 62

TB81000 ................................... 60

TB81001 ................................... 60

TB81002 ................................... 60

TB81003 ................................... 60

TB81004 ................................... 60

TB81005 ................................... 60

TB81006 ................................... 60

TB81007 ................................... 60

TB81009 ................................... 60

TB81020 ................................... 60

TB81200 ................................... 59

TB81201 ................................... 59

TB81210 ................................... 59

TB81211 ................................... 59

TB81212 ................................... 59

TB81213 ................................... 59

TB81214 ................................... 59

TB81215 ................................... 59

TB81216 ................................... 59

TB81217 ................................... 59

TB81301 ................................... 61

TB81302 ................................... 61

TB81303 ................................... 61

TB81304 ................................... 61

TB81305 ................................... 61

TB81306 ................................... 61

TB81307 ................................... 61

TB81308 ................................... 61

TB81309 ................................... 61

TB81321 ................................... 61

TB81322 ................................... 61

TB81323 ................................... 61

TB81324 ................................... 61

TB81325 ................................... 61

TB81326 ................................... 61

TB81327 ................................... 61

TB81328 ................................... 61

TB81329 ................................... 61

TB83210 ................................... 64

TB83212 ................................... 64

TB83213 ................................... 64

TB83215 ................................... 64

TB83218 ................................... 64

TB83219 ................................... 64

TB83220 ................................... 64

TC533111S .............................. 23

TC535153S .............................. 18

TC535163S .............................. 18

TC535173S .............................. 18

TC535183S .............................. 18

TE1530223S ............................. 18

TE2530193S ............................. 18

TE2530203S ............................. 18

TE2A530213S .......................... 18

TF217437S ............................... 21

TF217439S ............................... 21

TF220105S ............................... 28

TF220155S ............................... 28

TF220255S ............................... 28

TF220505S ............................... 28

TF249873S ............................... 21

TF252520S ............................... 21

TF252794S ............................... 21

TF252795S ............................... 21

TF252796S ............................... 21

TF252797S ............................... 21

TF279260S ............................... 21

TF279261S ............................... 21

TF279262S ............................... 21

TF279263S ............................... 21

TF279264S ............................... 21

TF279265S ............................... 21

TF279266S ............................... 21

TF279267S ............................... 21

TF279300S ............................... 21

TF279301S ............................... 21

TF279302S ............................... 21

TF279303S ............................... 21

TF279304S ............................... 21

TP131023S ............................... 26

TP131033S ............................... 26

TP131043S ............................... 26

TP131423S ............................... 27

TP131433S ............................... 27

TP131443S ............................... 27

TP131053S ............................... 26

TP131063S ............................... 26

TP131073S ............................... 26

TP130993S ............................... 26

TP131123S ............................... 26

TP131133S ............................... 26

TP135000453S ......................... 26

TP1533173S ............................. 23

TP1533213S ............................. 23

TP1533222S ............................. 23

TP1533423S ............................. 25

TP1533433S ............................. 25

CATALOG NO. PAGE NO. CATALOG NO. PAGE NO. CATALOG NO. PAGE NO. CATALOG NO. PAGE NO.

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

143

GENERAL ELECTRICAL CONNECTION DIAGRAMS

143

GENERAL ALPHANUMERICAL CATALOG NUMBER INDEX

TP1533443S ............................. 25

TP1533453S ............................. 25

TP1533463S ............................. 25

TP1533473S ............................. 25

TP1533483S ............................. 25

TP1533493S ............................. 25

TP1533503S ............................. 25

TP35000303S ........................... 26

TP35000753S ........................... 26

TP35001123S ........................... 26

TP35001503S ........................... 26

TP35002253S ........................... 26

TP35003003S ........................... 26

TP530193S ............................... 17

TP530203S ............................... 17

TP530213S ............................... 17

TP530223S ............................... 17

TP530233S ............................... 17

TP530243S ............................... 17

TP531193S ............................... 19

TP531203S ............................... 19

TP531213S ............................... 19

TP531223S ............................... 19

TP531233S ............................... 19

TP533121S ............................... 24

TP533123S ............................... 23

TP533128S ............................... 24

TP533131S ............................... 24

TP533133S ............................... 23

TP533138S ............................... 24

TP533141S ............................... 24

TP533143S ............................... 23

TP533148S ............................... 24

TP533151S ............................... 24

TP533153S ............................... 23

TP533158S ............................... 24

TP533161S ............................... 24

TP533163S ............................... 23

TP533168S ............................... 24

TP533171S ............................... 24

TP533181S ............................... 24

TP533183S ............................... 23

TP533191S ............................... 24

TP533624S ............................... 22

TP533634S ............................... 22

TP533644S ............................... 22

TP533654S ............................... 22

TP533664S ............................... 22

TP533674S ............................... 22

TP536491S ............................... 19

TP536503S ............................... 19

TP536513S ............................... 19

TP79085S ................................. 29

TP79087S ................................. 29

TP79088S ................................. 29

TP792724S ............................... 27

TP792734S ............................... 27

TP792744S ............................... 27

TP793684S ............................... 22

TP793694S ............................... 22

TP793704S ............................... 22

TP793714S ............................... 22

TP793724S ............................... 22

TP793734S ............................... 22

TP793744S ............................... 22

TP795203S ............................... 27

TP795213S ............................... 27

TP795223S ............................... 27

TP795233S ............................... 27

TP795243S ............................... 27

TP796944S ............................... 27

TP796954S ............................... 27

TP796964S ............................... 27

TP796974S ............................... 27

TP796984S ............................... 27

TPC530193S ............................ 18

TPC530203S ............................ 18

TPC533123S ............................ 23

TPC533133S ............................ 23

TPC533143S ............................ 23

TPC533153S ............................ 23

TPC533163S ............................ 23

TPC533173S ............................ 23

TPC533183S ............................ 23

TPC533193S ............................ 23

TPC3533111S ........................ 120

TPC3533113S ........................ 120

TPC3533121S ........................ 120

TPC3533123S ........................ 120

TPC3533131S ........................ 120

TPC3533133S ........................ 120

TPC3533141S ........................ 120

TPC3533143S ........................ 120

TPC3533151S ........................ 120

TPC3533153S ........................ 120

TPC3533161S ........................ 120

TPC3533163S ........................ 120

TPC3533171S ........................ 120

TPC3533173S ........................ 120

TPC3533181S ........................ 120

TPC3533183S ........................ 120

TPC3533191S ........................ 120

TPC3533193S ........................ 120

TPNS00533113S ...................... 40

TPNS00533123S ...................... 40

TPNS00533133S ...................... 40

TPNS00533143S ...................... 40

TPNS00533153S ...................... 40

TPNS00533163S ...................... 40

TPNS00533173S ...................... 40

TPNS01533113S ...................... 40

TPNS01533121S ...................... 41

TPNS01533123S ...................... 40

TPNS01533131S ...................... 41

TPNS01533133S ...................... 40

TPNS01533141S ...................... 41

TPNS01533143S ...................... 40

TPNS01533151S ...................... 41

TPNS01533153S ...................... 40

TPNS01533161S ...................... 41

TPNS01533163S ...................... 40

TPNS01533173S ...................... 40

TPNS01792714S ...................... 41

TPNS01792724S ...................... 41

TPNS01792734S ...................... 41

TPNS01792744S ...................... 41

TPNS02533113S ...................... 40

TPNS02533123S ...................... 40

TPNS02533133S ...................... 40

TPNS02533143S ...................... 40

TPNS02533153S ...................... 40

TPNS02533163S ...................... 40

TPNS02533173S ...................... 40

WSA1...................................... 134

WSA2...................................... 134

WSA3...................................... 134

WSA4...................................... 134

WSA5...................................... 134

WSA6...................................... 134

WSA8...................................... 134

WSB3...................................... 134

WSB4...................................... 134

CATALOG NO. PAGE NO. CATALOG NO. PAGE NO. CATALOG NO. PAGE NO. CATALOG NO. PAGE NO.

GENERAL ACME TRANSFORMER GENERAL INFORMATION

144

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

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.

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.

Harmonic Mitigating Transformers

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 non-

linear loads.

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.

NOTES

GENERAL ACME® TRANSFORMER™ GENERAL INFORMATION

145

NOTES

GENERAL ACME® TRANSFORMER™ GENERAL INFORMATION

146

NOTES

GENERAL ACME® TRANSFORMER™ GENERAL INFORMATION

147

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.

Peace of mind

Rock-solid power solutions

for over 80 years.

Acme Electric • N85 W12545 Westbrook Crossing • Menomonee Falls, WI 53051 • Phone: 262.293.1500 • acmetransformer.com

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, 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-

in noise and surge protection provided

by internal electrostatic shielding. It’s

a standard feature on Acme general

purpose dry-type transformers.

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.

The more you use, the cleaner

your system. The Acme shield

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.

With Acme you get all the extra benefits

of cleaner power, absolutely FREE!

Shielded

for cleaner

power™

FULL LINE PRODUCT CATALOG

CommerCial ConstruCtion • industrial automation

ACM_CAT_007_0913

Acme Electric

N85 W12545 Westbrook Crossing

Menomonee Falls, WI 53051

800.334.5214

acmetransformer.com

Acme Electric Full Line Product Catalog

Product Detail Manual

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