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2008 SQUARE D REF GUIDE Flip 0514.qxd

SQUARE D®
INFORMATION RESOURCES
Local Square D Sales Office:
(____)_______________
Square D Customer Information Center:
1-888-SQUARE D (1-888-778-2733)
The 2008 Pocket Digest still contains Schneider
Electric’s best selling catalog numbers from
a broad range of product lines, as well as an
index for quick reference, catalog number logic
tables, a weekly planner, a 22-page notepad and
“How to Select” information.

www.us.squared.com and
www.us.telemecanique.com
— Web sites include:

10/2/07
9:45 AM

• e-Catalog (DigestPlus Selector) — PDA and
electronic versions of the paper-based Digest
catalog containing:
• Product-Related Support Information
• Technical Library
• CAD Drawings
• Product Literature
• Product Specifications
• Competitive Cross Reference
• Product FAQs
• Alphanumeric Price Search
• Free Software Downloads
• Distributor and Sales Office Locator Tools

Page 1

1

2008 SQUARE D REF GUIDE Flip 0514.qxd

PROPERTY OF:
Name:
Address:

Phone:

Frequently Used Phone Numbers:
Name

Phone

10/2/07
9:45 AM
Page 2

2

Highlighted products are typically stocked at your local Small
Project Express (SPE) distributor. Flush version trims not available
as part of SPE program.

ELECTRICAL DISTRIBUTION
4
16
19
22
24
30
33
40
51
56

10/2/07

61
63
64
68
69
71
79

9:45 AM

Load Centers & Circuit Breakers
Switches
Transformers
Wireway
Panelboards
Meter Centers
INDUSTRIAL CONTROL
Molded Case Circuit Breakers
Contactors & Starters
Indicating Banks and Push Buttons
Limit Switches
ELECTRICAL REFERENCE
Conductor Ampacities
Enclosures
Motor Full Load Current
NEMA Size Starters
Transformer Data
Motor Data
Electrical Formulas

2008 SQUARE D REF GUIDE Flip 0514.qxd

2008 POCKET DIGEST
A guide to frequently needed items. See the Square D Digest for
a complete listing of products, specifications and applications.

Page 3

Reprinted with permission from NFPA 70-2005, National Electrical Code® Copyright©
2004, National Fire Protection Association, Quincy, MA 02169. This reprinted material
is not the complete and official position of the NFPA on the referenced subject, which
is represented only by the standard in its entirety.

© 2008 Schneider Electric. All rights reserved.

3

How to select a load center
®

5.
6.
7.
8.
9.

®

1. Select brand (QO or Homeline )
2. Select voltage, system (single or three phase),
short circuit current rating
3. Select indoor or outdoor enclosure
4. Select main lugs or breaker

Select mains ampacity
Select number of pole spaces required
Select ground bar
For QO load centers, select cover, flush or surface
Select accessories/options

CATALOG NUMBER DESCRIPTION – See Digest for available products

QO

1*

3040

L

200

G

FT

C

QO
HOM = Homeline
Phases
1 = Single phase

3 = Three phase

Pole spaces/circuits
Mains
L = Main lugs M = Main breaker
U = Universal (purchase main lug or breaker kit separately)
Ampacity
Ground bar
G = Included

T = Installed

Blank = Purchase separately

FT = Feed-thru lugs
Cover
C = Combination cover

RB = Rainproof

S = Surface cover

F = Flush cover

Blank = Order cover separately

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 4

4

*

Phase indication for QO load centers only.

Max
Mains Branch Branch
Rating Spaces Circuits

30
70

2

2

Load Center
Catalog Number

Cover Cat. No.
F=Flush
S=Surface

PK3GTA-1
PK4GTA

2

4

QO24L70 (F/S)

6

12

QO612L100 (F/S)

6

12

QO612L100D (F/S)

8

16

QO816L100 (F/S)

8

16

QO816L100D (F/S)

6

12

QO612L100D (F/S) CU

8

16

QO816L100D (F/S) CU

4

8

QO148L125G (F/S)

Included

100

125

Ground
Bar

QO2L30S

PK7GTA

Included

Convertible Main Lugs

225

QOC16U (F/S)

QO11224L125G

QOC16U (F/S)

16

16

QO116L125G

QOC24U (F/S)

16

24

QO11624L125G

QOC24U (F/S)

20

20

QO120L125G

QOC24U (F/S)

20

24

QO12024L125G

QOC24U (F/S)

24

24

QO124L125G

QOC24U (F/S)

32

32

QO132L125G

QOC32U (F)

20

30

QO12030L150G

QOC30U (F/S)

24

24

QO124L150G

QOC30U (F/S)

30

30

QO130L150G

QOC30U (F/S)

12

12

QO112L200G

QOC30U (F/S)

24

36

QO12436L200TFT

QOC40U (F/S)

30

30

QO130L200G

QOC30U (F/S)

30

40

QO13040L200G

QOC30U (F/S)

40

40

QO140L200G

QOC40U (F/S)

42

42

QO142L225G

QOC42U (F/S)

Included

Included

Page 5

200

QO112L125G

24

9:45 AM

150

12

12

10/2/07

125

12

2008 SQUARE D REF GUIDE Flip 0514.qxd

QO® SINGLE PHASE LOAD CENTERS - INDOOR MAIN LUGS

Included

Included

5

2008 SQUARE D REF GUIDE Flip 0514.qxd

QO® SINGLE PHASE LOAD CENTERS - INDOOR
CONVERTIBLE MAIN BREAKER
Mains
Rating

100

Max
Branch Branch
Load Center
Spaces Circuits Catalog Number

12

12

QO112M100

16

16

20

20

24

Cover Cat. No.
F=Flush
S=Surface

Ground
Bar

QOC12U (F/S)

PK9GTA

QO116M100

QOC20U100 (F/S)

PK12GTA

QO120M100

QOC20U100 (F/S)

PK15GTA

24

QO124M100

QOC24U (F/S)

PK15GTA

32

32

QO132M100

QOC32UF

PK18GTA

24

24

QO124M125

QOC24U (F/S)

PK15GTA

32

32

QO132M125

QOC32UF

PK18GTA

20

30

QO12030M150

QOC30U (F/S)

PK18GTA

24

24

QO124M150

QOC30U (F/S)

PK15GTA

30

30

QO130M150

QOC30U (F/S)

PK18GTA

32

32

QO132M150

QOC40U (F/S)

PK18GTA

20

40

QO12040M200

QOC30U (F/S)

PK23GTA

24

24

QO124M200

QOC30U (F/S)

PK15GTA

30

30

QO130M200

QOC30U (F/S)

PK18GTA

30

40

QO13040M200

QOC30U (F/S)

PK23GTA

40

40

QO140M200

QOC40U (F/S)

PK23GTA

42

42

QO142M200

QOC42U (F/S)

PK23GTA

40

40

QO140M225

QOC42U (F/S)

PK23GTA

42

42

QO142M225

QOC42U (F/S)

PK23GTA

125

150

10/2/07

200

9:45 AM

225

Page 6

6

2008 SQUARE D REF GUIDE Flip 0514.qxd

QO® SINGLE PHASE LOAD CENTERS - OUTDOOR
Mains
Rating

Branch
Spaces

Max
Branch
Circuits

Load Center
Catalog Number

Ground
Bar

PK3GTA1

Fixed Main Lugs
40

2

QO2L40RB

2

4

QO24L70RB

PK4GTA

6

12

QO612L100RB

PK7GTA

6

12

QO612L100TRB

Included

6

12

QO612L100RBCU

8

16

8

16

QO816L100RBCU

4

8

QO148L125GRB

12

12

QO112L125GRB

12

24

QO11224L125GRB

16

24

24

24

QO124L125GRB

150

30

30

QO130L150GRB

12

12

QO112L200GRB

200

30

30

QO130L200GRB

40

40

QO140L200GRB

225

42

42

QO142L225GRB

70

100

125

2

QO816L100RB

PK7GTA

Included

Convertible Main Lugs

125

30

40

QO11624L125GRB

Included

QO13040L200GRB

10/2/07

Main Breaker
12

12

QO112M100RB

PK9GTA

100

16

16

QO116M100RB

PK12GTA

20

20

QO120M100RB

PK15GTA

125

24

24

QO124M125RB

PK15GTA

20

30

QO12030M150RB

30

30

QO130M150RB

20

40

QO12040M200RB

PK23GTA

200

30

30

QO130M200RB

PK18GTA

40

40

QO140M200RB

PK23GTA

225

42

42

QO142M225RB

PK23GTA

125

6

12

QO1612M125FTRB

150

8

16

QO1816M150FTRB

200

8

16

QO1816M200FTRB

4

QO24L60NRNM

PK18GTA

9:45 AM

150

Feed Thru Lugs

Page 7

PK12GTA
PK15GTAL

Non-Metallic Enclosure-Main Lugs
60

2

Included

7

2008 SQUARE D REF GUIDE Flip 0514.qxd

QO® THREE PHASE LOAD CENTERS - INDOOR
Mains
Rating

Branch
Spaces

Load Center
Catalog Number

Cover Cat. No.
F=Flush
S=Surface

Ground
Bar

Fixed Main Lugs, 65,000A Short Circuit Current Rating
60

125

200
225

3

QO403L60N (F/S)

12

QO312L125G

QOC16U (F/S)

Included

20

QO320L125G

QOC24U (F/S)

24

QO324L125G

QOC24U (F/S)

18

QO318L200G

QOC30U (F/S)

30

QO330L200G

QOC30U (F/S)

42

QO342L225G

QOC42U (F/S)

PK4GTA

Included

Convertible Main Breaker, QO3100VH 22,000A Short Current Rating
100

27

QO327M100

QOC30U (F/S)

PK15GTA

Convertible Main Breaker, QD25,000A Short Circuit Current Rating
125
150

200

QO330MQ125

PK18GTA

30

QO330MQ150

PK18GTA

42

QO342MQ150

30

QO330MQ200

42

QO342MQ200

PK23GTA

42

QO342MQ225

PK23GTA

QOC342MQ (F/S)

PK23GTA
PK18GTA

10/2/07

225

30

9:45 AM
Page 8

8

2008 SQUARE D REF GUIDE Flip 0514.qxd

QO® THREE PHASE LOAD CENTERS - OUTDOOR
Mains
Rating

Branch
Spaces

Load Center
Catalog Number

Ground
Bar

Fixed Main Lugs, 65,000A Short Circuit Current Rating
60
125

200
225

P4GTA

3

QO403L60NRB

12

QO312L125GRB

20

QO320L125GRB

18

QO318L200GRB

30

QO330L200GRB

42

QO342L225GRB

Included

Convertible Main Breaker, QO3100VH 22,000A Short Current Rating
100

27

QO327M100RB

PK15GTA

Convertible Main Breaker, QD, 25,000A Short Circuit Current Rating
125

30

150

30

QO330MQ150RB

30

QO330MQ200RB

42

QO342MQ200RB

42

QO342MQ225RB

200
225

QO330MQ125RB
PK18GTA

PK23GTA

One Pole
QO110
QO115
QO120
QO125
QO130
QO135
QO140
QO145
QO150
QO160
QO170

Three Pole
Common Trip

QO210
QO215
QO220
QO225
QO230
QO235
QO240
QO245
QO250
QO260
QO270
QO280
QO290
QO2100
QO2110

QO310
QO315
QO320
QO325
QO330
QO335
QO340
QO345
QO350
QO360
QO370
QO380
QO390
QO3100

125

QO2125

150

QO2150 *

175

QO2175 *

200

QO2200 *

Page 9

Two Pole
Common Trip

9:45 AM

10
15
20
25
30
35
40
45
50
60
70
80
90
100
110

10/2/07

QO BRANCH CIRCUIT BREAKERS 10,000 AIR
Ampere
Rating

* Requires four spaces. Use only in single phase panel rated 150A or greater.
9

2008 SQUARE D REF GUIDE Flip 0514.qxd

QO® GROUND FAULT CIRCUIT INTERRUPTERS 10,000 AIR
Ampere
Rating
15
20
25
30
40
50
60

One Pole

Two Pole

QO115GFI
QO120GFI
QO125GFI
QO130GFI

QO215GFI
QO220GFI
QO225GFI
QO230GFI
QO240GFI
QO250GFI
QO260GFI*

Three Pole

For bolt-on breakers, change QO to QOB
* Suitable only for feeding 240 Vac and 208 Vac loads. Does not contain
load neutral connection.

QO ARC FAULT CIRCUIT INTERRUPTERS 10,000 AIR
Ampere Rating
15

One Pole
QO115AFI

20

QO120AFI

15

QO115CAFI*

20

QO120CAFI*

* Combination Arc Fault Breakers.

10/2/07

QO TANDEM CIRCUIT BREAKERS
Ampere
Rating

Replacement for
Non-Class CTL

One Pole

One Pole

QOT1515
QOT1520
QOT2020

QO1515
QO1520
QO2020

9:45 AM

15 & 15
15 & 20
20 & 20

QOT

Cat. No.

Filler Plate
Handle Tie
Handle Tie for QOT
Handle Lock-off
Padlock Attachment - One Pole, Removable
Padlock Attachment - One Pole, Fixed, On or Off
Padlock Attachment - One Pole, Fixed, Off only
Padlock Attachment - Two & Three Pole, Removable
Padlock Attachment - Two Pole, Fixed, Off only
Surgebreaker® Plug-on Secondary Surge Arrester

QOFP
QO1HT
QOTHT
HLO1
QOHPL
QO1PA
QO1PAF
QO1HPL
QO2PAF
QO2175SB

10

Page 10

Accessories

Mains Branch
Rating Spaces

Max
Branch
Circuits

Load Center &
Cover Catalog Number
F = Flush, S = Surface

Ground
Bar

Fixed Main Lugs
70

2

4

100

6

12

125

4

8

HOM24L70 (F/S)

PK3GTA1

HOM612L100 (F/S)

PK7GTA

HOM48L125GC

Included

PK15GTA

Convertible Main Lugs
16

HOM816L125C

8

16

HOM816L125TC

12

12

HOM12L125C

12

24

HOM1224L125TC

16

24

HOM1624L125C

20

20

HOM20L125C

20

24

HOM2024L125TC

24

24

HOM24L125TC

30

30

HOM30L150C

PK23GTA

30

30

HOM30L150TC

Included

16

32

HOM1632L200TC

16

32

HOM1632L200TCFT

20

40

HOM2040L200TC

30

30

HOM30L200C

30

30

HOM30L200TC

Included

30

40

HOM3040L200TC

Included

40

40

HOM40L200C

40

40

HOM40L200TC

42

42

HOM42L225C

Included
PK15GTA
Included

125
PK15GTA

Included

150

PK23GTA

PK23GTA
Included
PK23GTA

11

Page 11

225

Included

9:45 AM

200

10/2/07

8

2008 SQUARE D REF GUIDE Flip 0514.qxd

HOMELINE® SINGLE PHASE LOAD CENTERS - INDOOR

Mains
Rating

Branch
Spaces

Max
Branch
Circuits

Load Center &
Cover Catalog Number
F = Flush, S = Surface

Ground
Bar

Convertible Main Breaker

100

125

150

8

16

HOM816M100C

8

16

HOM816M100TC

12

12

HOM12M100C

12

24

HOM1224M100TC

20

20

HOM20M100C

PK15GTA
Included
PK15GTA
Included
PK15GTA

24

24

HOM24M100C

30

30

HOM30M100C

PK23GTA

12

24

HOM1224M125C

PK15GTA

12

24

HOM1224M125TC

Included

24

24

HOM24M125C

PK15GTA

30

30

HOM30M125C

PK23GTA

16

32

HOM1632M150TC

20

30

HOM2030M150TC

30

30

HOM30M150C

12

24

HOM1224M200TC

16

32

HOM1632M200TC

20

40

HOM2040M200C

20

40

HOM2040M200TC

Included

30

30

HOM30M200C

PK23GTA

30

40

HOM3040M200TC

Included

40

40

HOM40M200C

42

42

HOM42M200C

42

42

HOM42M225C

Included
PK23GTA

2008 SQUARE D REF GUIDE Flip 0514.qxd

HOMELINE® SINGLE PHASE LOAD CENTERS - INDOOR

Included

PK23GTA

Universal Mains - No Main Circuit Breaker or Main Lugs

200

32

20

40

HOM1632U200TC
HOM2040U200TC

30

40

HOM3040U200TC

Included

Page 12

16

9:45 AM

225

10/2/07

200

PK23GTA

12

2008 SQUARE D REF GUIDE Flip 0514.qxd

HOMELINE® SINGLE PHASE LOAD CENTERS - OUTDOOR
Mains
Rating

Branch
Spaces

Max
Branch
Circuits

Load Center
Catalog Number

Ground
Bar

Fixed Main Lugs
70

2

4

HOM24L70RB

PK4GTA

100

6

12

HOM612L100RB

PK7GTA

125

4

8

HOM48L125GRB

Included

Convertible Main Lugs

125

200

8

16

HOM816L125RB

12

12

HOM12L125RB

12

24

HOM1224L125RB

20

20

HOM20L125RB

12

12

HOM12L200RB

20

40

HOM2040L200RB

30

30

HOM30L200RB

40

40

HOM40L200RB

PK15GTA

PK23GTA

Convertible Main Breaker
8

16

HOM816M100RB

PK15GTA

12

12

HOM12M100RB

PK15GTA

20

20

HOM20M100RB

20

HOM24M100RB

24

24

HOM24M125RB

150

30

30

HOM30M150RB

20

40

HOM2040M200RB

30

30

HOM30M200RB

30

40

HOM3040M200RB

40

40

HOM40M200RB

16

24

HOM1624M225RB

PK15GTA

42

42

HOM42M225RB

PK23GTA

225

9:45 AM

200

PK15GTA

PK23GTA

Feed Thru Lugs
150

8

16

HOM816M150FTRB

200

8

16

HOM816M200FTRB

16

HOM816U200FTRB

PK15GTA-L

Universal Mains
200

8

PK15GTA-L

13

Page 13

20
125

10/2/07

100

One Pole

Two Pole Common Trip

15

HOM115

HOM215

20

HOM120

HOM220

25

HOM125

HOM225

30

HOM130

HOM230

HOM140

HOM240

HOM150

HOM250

35

HOM235

40
45

HOM245

50
60

HOM260

70

HOM270

80

HOM280

90

HOM290

100

HOM2100

110

HOM2110

125

HOM2125

150

HOM2150BB*

175

HOM2175BB*

200

HOM2200BB*

2008 SQUARE D REF GUIDE Flip 0514.qxd

HOMELINE® BRANCH CIRCUIT BREAKERS 10,000 AIR
Ampere Rating

* Requires four spaces. Use only in panel rated 150A or greater.

Two Pole

HOM115GFI

HOM215GFI

20

HOM120GFI

9:45 AM

One Pole

15

HOM220GFI

30

HOM230GFI

40

HOM240GFI

50

HOM250GFI

Page 14

HOM ARC FAULT CIRCUIT INTERRUPTERS 10,000 AIR
Ampere Rating

One Pole

15

HOM115AFI

20

HOM120AFI

15

HOM115CAFI*

20

HOM120CAFI*

10/2/07

HOMELINE GROUND FAULT CIRCUIT INTERRUPTERS 10,000 AIR
Ampere Rating

* Combination Arc Fault Breakers.

14

2008 SQUARE D REF GUIDE Flip 0514.qxd

HOMELINE® TANDEM CIRCUIT BREAKERS
Ampere Rating
15
15
20
30
30

&
&
&
&
&

One Pole

15
20
20
15
20

HOMT1515
HOMT1520
HOMT2020
HOMT3015
HOMT3020

HOMELINE QUAD TANDEM CIRCUIT BREAKERS
Ampere Rating
One Pole
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)

15
15
15
15
15
15
20
20
20
20
20

Two Pole
15
20
25
30
40
50
20
25
30
40
50

Catalog Number
HOMT1515215
HOMT1515220
HOMT1515225
HOMT1515230
HOMT1515240
HOMT1515250
HOMT2020220
HOMT2020225
HOMT2020230
HOMT2020240
HOMT2020250

HOMFP
HOM1HT
HOMTHT
HOM1PA
HOM2PALA
HOM2PAHA
HOMQPA
HOM2175SB

9:45 AM

Cat. No.

Filler Plate
Handle Tie
Handle Tie for HOMT
Padlock Attachment One-Pole
Padlock Attachment Two-Pole (70A and lower)
Padlock Attachment Two-Pole (80A and higher)
Padlock Attachment-Quad
Surgebreaker® Plug-on Secondary Surge Arrester

10/2/07

Accessories

Page 15

15

How to select a safety switch
1. Select duty
2. Select fused or not fused
3. Select voltage

4. Select ampacity
5. Select enclosure
6. Select accessories/options

CATALOG NUMBER DESCRIPTION – See Digest for available products

H

Duty
H = Heavy Duty
D = General Duty

L = Light Duty
DT = Double Throw

Fuses
Blank = Fusible

U = Not fusible

U

3

2

3

N

RB

Switched Poles (Blades)
Voltage
1 = 120 Vac
Ampacity
1 = 30A
5 = 400A

2 = 120/240 Vac
2 = 60A
6 = 600A

6 = 600 Vac

3 = 100A
7 = 800A

4 = 200A
8 = 1200A

Neutral
N = Factory installed neutral
Enclosure
Blank = Type 1
R = Type 3R
RB = Type 3R with bolt-on hub provision

DS = Type 4, 4X, 5 (stainless steel)
DX = Type 4X Krydon
DF = Type 4X Glass Reinforced Polyester

A = Type 3R, 12 with KO’s
AWK = Type 3R, 12 without KO’s

16

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 16

2008 SQUARE D REF GUIDE Flip 0514.qxd

AIR CONDITIONING DISCONNECTS
Type 3R Outdoor, 240Vac 2 Wire with ground
Amps

Molded Case Switch

Not Fusible Pullout

Fusible Pullout

Metal Enclosure
30

use 60A

use 60A

FP221R

60

QO200TR

UFP222R

FP222R

UFP222RGFI*
UFP222RD**
Non-Metallic Enclosure
30

use 60A

use 60A

FP221RNM

60

QO200TRNM

UFP222RNM

FP222RNM

*Contains a 20A GFI receptacle
**Contains a 20A duplex receptacle

LIGHT DUTY SWITCH - FUSIBLE
Type 1 Indoor
Amps

120Vac
2 Wire
1 Blade, 1S/N
L111N

Fuse
Plug

30

Cartridge

L221N

10/2/07

30

120/240Vac
3 Wire
2 Blades, 1S/N
L211N

GENERAL DUTY SAFETY SWITCHES
Type 1
Amps

Type 3R

4 Wire
3 Blades, 1 S/N

3 Wire
2 Blades, 1 S/N

4 Wire
3 Blades, 1 S/N

Fusible, 240V Max., Single throw
30

D221N

D321N

D221NRB

D321NRB

60

D222N

D322N

D222NRB

D322NRB

100

D223N

D323N

D223NRB

D323NRB

D224N

D324N

D224NRB

D324NRB

200

Page 17

Not-Fusible, 240V Max., Single throw
Amps

3 Wire
3 Blades

3 Wire
3 Blades

30

DU321

DU321RB

60

DU322

DU322RB

100

DU323

DU323RB

200

DU324

DU324RB

9:45 AM

3 Wire
2 Blades, 1 S/N

17

Type 1
Amps

3 Wire

Type 3R
4 Wire

3 Wire

4 Wire

2 Blades, 1 S/N 3 Blades, 1 S/N 2 Blades, 1 S/N 3 Blades, 1 S/N
Fusible, 240V Max., Single throw
30

H221N

H321N

H221NRB

60

H222N

H322N

H222NRB

H321NRB
H322NRB

100

H223N

H323N

H223NRB

H323NRB

200

H224N

H324N

H224NRB

H324NRB

Fusible, 600V Max., Single throw
3 Wire

4 Wire

3 Wire

4 Wire

3 Blades

3 Blades, 1 S/N

3 Blades

3 Blades, 1 S/N

30

H361

H361N

H361RB

H361NRB

60

H362

H362N

H362RB

H362NRB

100

H363

H363N

H363RB

H363NRB

200

H364

H364N

H364RB

H364NRB

Amps

Not-Fusible, 600V Max., Single throw
3 Wire
3 Blades

30

HU361

HU461

HU361RB

60

HU362

HU462

HU362RB

100

HU363

HU463

HU363RB

200

HU364

HU464

HU364RB

9:45 AM

4 Wire
4 Blades

10/2/07

3 Wire
3 Blades

Amps

RAINPROOF BOLT-ON HUBS
Cat. No.
B075
B100
B125
B150
B200

Conduit Size
2 1/2
3
3 1/2
4
Closing Cap

Cat. No.
B250
B300
B350
B400
BCAP

Page 18

Conduit Size
3/4
1
1 1/4
1 1/2
2

2008 SQUARE D REF GUIDE Flip 0514.qxd

HEAVY DUTY SAFETY SWITCHES

18

10/2/07

How to select a low voltage transformer

1. Select voltage and system: single
phase or three phase
2. Select type (Energy Efficient, General
Purpose, Drive Isolation, K-Rated, etc.)

3.
4.
5.
6.

Select
Select
Select
Select

load kVA
primary and secondary voltage
taps required
temperature rise rating

9:45 AM

7. Select enclosure type
8. Select mounting method
9. Select accessories/options

CATALOG NUMBER DESCRIPTION – See Digest for available products

1*

kVA
Phase
T = Three Phase

S

1

S = Single Phase

Voltage and Tap code - See chart for common applications
Insulation Class
H = 220 (Not available on resin filled transformers)
F = 180 (Available only on resin filled transformers)
Options
See the Digest
COMMON SINGLE PHASE
Primary
Secondary
208 Delta
208Y/120
208 Delta
480Y/277
480 Delta
208Y/120
480 Delta
208Y/120
480 Delta
208Y/120
480
240 Delta
480 Delta
240 Delta
480 Delta
240 Delta
480 Delta
480Y/277
480 Delta
480Y/277
240 Delta
208Y/120
600 Delta
208Y/120
600 Delta
208Y/120

VOLTAGE/TAP CODES
Taps
Code
3 - 5% 1+2211
3 - 5% 1+2212
2 - 5% FCBN
2
6 - 2.5% 2+43
4 - 2.5% 2+268
2 - 5% FCBN
151
6 - 2.5% 2+46
4 - 2.5% 2+263
6 - 2.5% 2+41814
4 - 2.5% 2+276
6 - 2.5% 2+467
6 - 2.5% 2+465
4 - 2.5% 2+279

COMMON THREE PHASE
Primary
Secondary
120x240
120/240
208
120/240
208
120/240
240x480
120/240
240x480
120/240
277
120/240
277
120/240
480
120/240
600
120/240
600
120/240
600
120/240

Other Voltages and taps are available through the product selector.
EE meets TP1 efficiency levels. The remaining numbers are for general purpose.
* For 2005 Energy Act compliance, add EE prefix

VOLTAGE/TAP CODES
Taps
Code
none
6
none
7
2 - 5% FCBN
60
none
1
6 - 2.5% 2+43
none
8
2 - 5% FCBN
61
2 - 5% FCBN
40
none
51
2 - 5% FCBN
4
6 - 2.5% 2+43534

Page 19

19

2008 SQUARE D REF GUIDE Flip 0514.qxd

F_ _ _ _ _

2008 SQUARE D REF GUIDE Flip 0514.qxd

DRY TYPE TRANSFORMERS
Single Phase
kVA

Primary

Secondary

240x480V

Three Phase
Primary 480 Delta

120/240V

3

3S1F

5

5S1F

Sec 208Y/120
3T2F

6

6T2F

7.5

7S1F

9

9T2F

10

10S1F

15

EE15S3H

25

EE25S3H

EE15T3H

30

EE30T3H

37.5

EE37S3H

45

EE45T3H

50

EE50S3H

75

EE75S3H

100

EE100S3H

EE75T3H

112.5

EE112T3H

150

EE150T3H

10/2/07

BUCK & BOOST TRANSFORMERS
kVA

120x240V
Primary
12/24 V
Secondary

120x240V
Primary
16/32 V
Secondary

240x480V
Primary
24/48 V
Secondary

50SV46A

50SV82A

100SV43A

100SV46A

100SV82A

.150

150SV43A

150SV46A

150SV82A

.250

250SV43B

250SV46B

250SV82B

.500

500SV43B

500SV46B

500SV82B

.750

750SV43F

750SV46F

750SV82F

1.0

1S43F

1S46F

1S82F

1.5

1.5S43F

1.5S46F

1.5S82F

2.0

2S43F

2S46F

2S82F

3.0

3S43F

3S46F

3S82F

Page 20

50SV43A

.100

9:45 AM

.050

Try our new on-line Buck and Boost Calculator, quickly providing buck boost transformer
selection and wiring connection diagram! visit www.us.squared.com/buckboost

20

2008 SQUARE D REF GUIDE Flip 0514.qxd

BUCK AND BOOST APPLICATION
208 Volts to 230 Volts or 208 Volts to 240 Volts
Single Phase
208 - 230 or 230 - 208

208 - 240 or 240 - 208

Catalog No.

Load kVA

Catalog No.

Load kVA

50SV43A

0.5

50SV46A

0.37

100SV43A

1.0

100SV46A

0.75

150SV43A

1.5

150SV46A

1.12

250SV43B

2.5

250SV46B

1.88

500SV43B

5.0

500SV46B

3.75

750SV43F

7.5

750SV46F

5.62

1S43F

10

1S46F

7.5

1.5S43F

15

1.5S46F

11.25

2S43F

20

2S46F

15

3S43F

30

3S46F

22.5

Wiring Diagram 4
Three Phase (2 Transformers Rqd.)
(3-wire power loads only)
208 - 230 or 230 - 208

208 - 240 or 240 - 208
Catalog No.

Load kVA

50SV43A

0.86

50SV46A

0.64

100SV43A

1.72

100SV46A

1.29

150SV43A

2.58

150SV46A

1.94

250SV43B

4.30

250SV46B

3.23

500SV43B

8.60

500SV46B

6.45

750SV43F

12.9

750SV46F

9.70

1S43F

17.2

1S46F

12.9

1.5S43F

25.8

1.5S46F

19.4

2S43F

34.3

2S46F

25.8

3S43F

51.6

3S46F

38.8

9:45 AM

Load kVA

10/2/07

Catalog No.

Wiring Diagram 6

Page 21

For wiring diagrams and other voltage combinations refer to publication
7414HO9401 or Buck&Boost Slide Chart 7414SP9901.
Try our new on-line Buck and Boost Calculator, quickly providing buck
boost transformer selection and wiring connection diagram!
Visit www.us.squared.com/buckboost

21

How to select wireway
1. Select type required
2. Select size required

3. Select length required
4. Select fittings required
NEMA 1 only - connectors not supplied, order separately

CATALOG NUMBER DESCRIPTION – See Digest for available products

LDB
LJB

4
6

5

CP

Type
LDB = NEMA 1
LJB = NEMA 12 Oiltight
LDRB = Raintight Wireway
RDB = Raintight Trough
Size
2 = 2.5 x 2.5
4=4x4

6=6x6
8=8x8

12 = 12 x 12

Length
1, 2, 3, 4, 5, or 10’
Fittings
H = Hanger
T = Tee
45L = Elbow, 45
90L = Elbow, 90

C = Connector
CP = Closing Plate
A = Adapter
R = Reducer

22

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 22

Straight Length

2.5 x 2.5

4x4

1

LDB21

LDB41

LDB61

6x6

LDB81

8x8

2

LDB22

LDB42

LDB62

LDB82

3

LDB23

LDB43

LDB63

LDB83

4

LDB24

LDB44

LDB64

LDB84

5

LDB25

LDB45

LDB65

LDB85

10

LDB210

LDB410

LDB610

LDB810
LDB88H

LDB2H

LDB4H

LDB6H

Tee

LDB2T

LDB4T

LDB6T

LDB88T

Elbow 45

LDB245L

LDB445L

LDB645L

LDB845L

Elbow 90

LDB290L

LDB490L

LDB690L

LDB88L

Connector

LDB2C

LDB4C

LDB6C

LDB88C

Closing Plate

LDB2CP

LDB4CP

LDB6CP

LDB88E

Adaptor

LDB22A

LDB44A

LDB66A

LDB88A

LDB42R

LDB64R

LDB86R

Reducer

10/2/07

Hanger

WIREWAY - NEMA 3R TROUGH
4x4

6x6

8x8

3

RDB43

RDB63

RDB83

5

RDB45

RDB65

RDB85

9:45 AM

Straight Length

2008 SQUARE D REF GUIDE Flip 0514.qxd

WIDELY USED DEVICES
WIREWAY - NEMA 1

Page 23

23

How to select a panelboard
5.
6.
7.
8.

1. Select voltage, short circuit current rating, and system:
single or three phase
2. Select mains ampacity
3. Select main lugs or main breaker
4. Select number of pole spaces

Select
Select
Select
Select

copper or aluminum bus
interior catalog number
enclosure, select box and trim catalog numbers
accessories/options

CATALOG NUMBER DESCRIPTION – See Digest for available products

NQOD

4

42

L

225

CU

TF

Voltage
NQOD = 240V
NF = 480Y/277V
Phase/wire
No digit = Single phase, 3-wire
4 = Three phase, 4-wire
Pole spaces
Mains
L = Main lugs
M = Main breaker
Amps

NF: 1 = 100/125

C or CU = Copper bussing

2 = 250

4 = 400 6 = 600

600A Copper only

TF or TFL = Feed-thru lugs

24

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 24

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 25

25

NQOD LIGHTING PANELBOARDS - 240V. MAX.
Main Lugs
Interior

Mains
Rating

Max. No.
of Poles

100

24

225

400

600

30
42
42
42
54
30
42
54
30
42
42
54

Three Phase
4 Wire

Box

Enclosure
Type 1
Type 3R/12
MONO FLAT
Enclosure
Front
& Interior
F=Flush S=Surface
Trim Kit

NQOD424L100

MH23

MHC23( )

MH23WP

NQOD442L225TFL
NQOD442L225CUTF
NQOD454L225
NQOD430L400
NQOD442L400
NQOD454L400
NQOD430L600
NQOD442L600
NQOD442L600TFL
NQOD454L600

MH32
MH35
MH41
MH41
MH41
MH50
MH53
MH59
MH53
MH56
MH62
MH62

MHC32( )
MHC35( )
MHC41( )
MHC41( )
MHC41( )
MHC50V(
MHC53V(
MHC59V(
MHC53V(
MHC56V(
MHC62V(
MHC62V(

MH32WP
MH35WP
MH41WP
MH41WP
MH41WP
MH50WP
MH53WP
MH59WP
MH656WP
MH686WP
MH746WP
MH746WP

*
NQOD430L225
*
NQOD442L225
*

*
*
*
*
***
***
***
***

CU for copper bus.
* Add
** WP Enclosure available only with copper bus.

)
)
)
)
)
)
)

**
**
**

( )Add F/Flush or S/Surface suffix to front catalog number.

*** 600A interior available only with copper bus.

NQOD LIGHTING PANELBOARDS - 240V. MAX.
Main Breaker
Interior
Mains Max. No.
Rating of Poles

100

225

400

Three Phase
4 Wire

Main Breaker
Adapter Kit
Factory Installed
Backfed QOB
Main Breaker

24

NQOD424M100

30
42
42
42
54
30
42
42
54

NQOD430L225
NQOD442L225
NQOD442L225TFL
NQOD442L225CUTF
NQOD454L225
NQOD430L400
NQOD442L400
NQOD442L600TFL***
NQOD454L400

*

*
*
*
*
*
*

NQODQB &
desired
3 Pole
QB/QD/QG/QJ
circuit breaker
NQOD4 &
desired 3 Pole
LAL/LHL
circuit breaker

Box

Enclosure
Type 1
Type 3R/12
MONO FLAT
Enclosure
Front
& Interior
F=Flush S=Surface
Trim Kit

MH26

MHC26( )

MH26WP

MH44
MH50
MH56
MH56
MH56
MH65
MH68
MH77
MH74

MHC44( )
MHC50( )
MHC56( )
MHC56( )
MHC56( )
MHC65V(
MHC68V(
MHC77V(
MHC74V(

MH44WP
MH50WP
MH56WP
MH56WP
MH56WP
MH65WP
MH68WP
MH77WP
MH74WP

)
)
)
)

**
**
**

Add CU for copper bus.

( )Add F/Flush or S/Surface suffix to front catalog number.

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 26

26

*
** WP Enclosure available only with copper bus.
*** 600A interior available only with copper bus.

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 27

27

NF LIGHTING PANELBOARDS - 277V. MAX. THREE PHASE 4 WIRE
Main Lugs
Enclosure

Interior
Type 1
Mains

Max. No.

Three Phase

Rating

of Poles

4 Wire

125

18

NF418L1

30
250

42
54
30

400

42
54
30

600

*
NF430L2
*
NF442L2
*
NF454L2
*
NF430L4
*
NF442L4
*
NF454L4
*

NF430L6C

Box

Enclosure

Front

& Interior

F=Flush S=Surface

Trim Kit

MH26

NC26( )

MH26WP

MH38

NC38( )

MH38WP

MH44

NC44( )

MH44WP

MH50

NC50( )

MH50WP

MH50

NC50V( )

MH50WP

MH56

NC56V( )

MH62

NC62V( )

MH62WP

MH50

NC50V( )

WP Factory

MH56WP

42

NF442L6C

MH56

NC56V( )

Assembled

54

NF454L6C

MH62

NC62V( )

Only

Add “C” for copper bus.
( ) Add F/Flush or S/Surface suffix to front catalog number.
Note: 800A available factory assembled only.

*

Type 3R/12
MONO FLAT

NF LIGHTING PANELBOARDS - 277V. MAX. THREE PHASE 4 WIRE
Main Breaker
Three Phase

Enclosure

4 Wire
Mains

Max. No.

Rating

of Poles

100

18

NF418L1

125

18

NF418M1

30

NF430L2

42

NF442L2

54

NF454L2

250

30
400

42
54

Interior

*

Type 3R/12

MONO FLAT

Enclosure
& Interior

Main Breaker

F=Flush

Front

Adapter Kit

S=Surface

Trim Kit

N100MFI
or
N150MH

MH38

NC38( )

MH38WP

Includes
Backfed EDB
Main Breaker

MH32

NC32( )

MH32WP

N250MJ &
3 Pole circuit
breaker JDL,
JGL, JJL or JLL

MH50

NC50( )

MH50WP

MH56

NC56( )

MH56WP

MH62

NC62( )

MH62WP

N400M &
3 Pole
LAL or LHL
Cir.Brkr.

MH62

NC62V( )

MH62WP

MH68

NC68V( )

MH68WP

MH74

NC74V( )

MH74WP

**

*

*
*
*
NF430L4
*
NF442L4
*
NF454L4
*

Type 1

Add “C” for copper bus. ( ) Add F/Flush or S/Surface suffix to front catalog number.
Note: 600A available factory assembled only.
Use N100MFI for FIL main circuit breaker. Use N150MH for HDL, HGL, HJL or HLL (all 100A maximum in this interior).

*
**

28

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 28

2008 SQUARE D REF GUIDE Flip 0514.qxd

EDB†, EGB, EJB BRANCH CIRCUIT BREAKERS
Ampere
Rating

One Pole
277Vac

Two Pole
480/277Vac

Three Pole
480/277Vac

15

E( )B14015

E( )B24015

E( )B34015

20

E( )B14020

E( )B24020

E( )B34020

*
*
E( )B14025
*
E( )B14030
*
E( )B14035
*
E( )B14040
*
E( )B14045
*
E( )B14050
*
E( )B14060
*
E( )B14070
*

25
30
35
40
45
50
60
70
80
90
100
110
125

*
*
E( )B24025
*
E( )B24030
*
E( )B24035
*
E( )B24040
*
E( )B24045
*
E( )B24050
*
E( )B24060
*
E( )B24070
*
E( )B24080
*
E( )B24090
*
E( )B24100
*
E( )B24110
*
E( )B24125
*

*
*
E( )B34025
*
E( )B34030
*
E( )B34035
*
E( )B34040
*
E( )B34045
*
E( )B34050
*
E( )B34060
*
E( )B34070
*
E( )B34080
*
E( )B34090
*
E( )B34100
*
E( )B34110
*
E( )B34125
*

( ) Complete catalog number with letter for desired interrupting rating

*

shown below.
†

EDB breakers are most commonly stocked as an SPE product.

10/2/07

INTERRUPTING RATINGS (kA)
EGB

25

65

EJB
100

240V

18 (1P only), 25

35 (1P only), 65

65 (1P only), 100

480Y/277V

18

35

65

E-FRAME EPDs (EQUIPMENT PROTECTION DEVICES),
1-POLE, 277 VAC, THERMAL-MAGNETIC WITH
30mA GROUND-FAULT PROTECTION
EDB (18kA)

EGB (35kA)

EJB (65kA)

15

EDB14015EPD

EGB14015EPD

EJB14015EPD

20

EDB14020EPD

EGB14020EPD

EJB14020EPD

30

EDB14030EPD

EGB14030EPD

EJB14030EPD

40

EDB14040EPD

EGB14040EPD

EJB14040EPD

50

EDB14050EPD

EGB14050EPD

EJB14050EPD

Page 29

Ampere

9:45 AM

EDB
120V

29

How to select a meter pak
1. Check local utility requirements
2. Select meter pak device

3. Select service disconnect
4. Select accessories/options

CATALOG NUMBER DESCRIPTION – See Digest for available products

MP

H

4

4

125

Device
MP = Meter Pak

*

SocketCover/Bypass Style
Blank = Ring style, no bypass
H = Ringless, horn bypass with 5th jaw
L = Ringless, lever bypass
R = Ringless, no bypass

4 = 400A
8 = 800A

Page 30

600 Al, 750 Cu

6

600 Al, 750 Cu

5

400

4

400

3

400

2

400 Al
400

4

300

3
2
Amps per
Position

30

*

225

Suitable only for use as service equipment.

9:45 AM

350

2

400 Al

Socket Amperage
125
200

10/2/07

400

3

500 Cu

Number of sockets
2, 3, 4, 5, 6

2008 SQUARE D REF GUIDE Flip 0514.qxd

400

4

500 Cu

Mains Ampere Rating
2 = 200A
3 = 300A
5 = 500A
6 = 600A

No. of
Positions

200
Factory Installed
Main Lug
Ampacity

METER PAK METER CENTERS

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 31

Amps per
Position

125

Factory Installed
Main Lug
Ampacity

Main Bus
Ampacity

2

200

200

3

300

300

4

400

400

No. of
Positions

5
6

200

225

31

METER PAK METER CENTERS

400 Al
500 Cu
400 Al
500 Cu

500*
600*

2

400

400

3

400

400

4

400

600

5

600 Al, 750 Cu

800*

6

600 Al, 750 Cu

800*

2

350

350

3

400

400

4

400

400

* Use of alternate lug kits required to obtain full rating of main bus ampacity (refer to Digest 174 page 2-6).

METER PAK METER CENTERS (cont.)

Ring
Type

Catalog Number
Ringless
Horn
No Bypass
Bypass

MP22125

MPR22125

MPH22125

MP33125

MPR33125

MPH33125

MP44125

MPR44125

MPH44125

MP55125

MPR55125

MPH55125

MP66125

MPR66125

MPH66125

MP42200

MPR42200

MPH42200

MP43200

MPR43200

MPH43200

MP64200

MPR64200

MPH64200

MP85200

MPR85200

MPH85200

MP86200

MPR86200

MPH86200

Lever
Bypass

Circuit
Breaker
Type

QO,
QO-VH,
QOH

Hub
Provision

Semi-Flush
Flange Kit

A/B300*

MPSF12
MPSF14

A-L*

MPSF16

MPSF23
QOM2-MM,
QOM2-MVH

(2) A-L*

MPSF24
MPSF26

MPL32225
MPL53225

QB,QD,QG
or QJ

(2) A-L*

N/A

* Refer to Digest 174 page 2-3 for A and A/L type hubs. B300 is a complete catalog number.

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 32

32

MPL64225

Terminal Wire
Range

AL50FA
#14–#4 AWG Cu
or
#12–#4 AWG Al

AL100FA
#14–#1/0 AWG Cu
or
#12–#1/0 AWG Al

AL50FA
#14–#4 AWG Cu
or
#12–#4 AWG Al

AL100FA
#14–#1/0 AWG Cu
or
#12–#1/0 AWG Al

10/2/07

AL50FA
#14–#4 AWG Cu
or
#12–#4 AWG Al

AL100FA
#14–#1/0 AWG Cu
or
#12–#1/0 AWG Al

9:45 AM

AC Magnetic Trip
Standard Interrupting Level
Settings
(10 kA AIR)
Catalog Number *
Hold
Trip
1-Pole, 120 Vac (Not available in I-Line)
15
275
600
FAL12015
600
20
275
FAL12020
25
275
600
FAL12025
275
600
30
FAL12030
400
850
FAL12035
35
40
400
850
FAL12040
400
850
FAL12045
45
50
400
850
FAL12050
800
1450
FAL12060
60
1450
FAL12070
70
800
800
1450
FAL12080
80
1700
FAL12090
90
900
1700
100
900
FAL12100
2-Pole, 240 Vac Unit-mount with Lugs (See footnotes for I-Line)
275
600
FAL22015(**)
15
600
275
FAL22020(**)
20
25
275
600
FAL22025(**)
30
275
600
FAL22030(**)
400
850
FAL22035(**)
35
40
400
850
FAL22040(**)
45
400
850
FAL22045(**)
400
850
FAL22050(**)
50
60
800
1450
FAL22060(**)
70
800
1450
FAL22070(**)
80
800
1450
FAL22080(**)
900
1700
FAL22090(**)
90
100
900
1700
FAL22100(**)
3-Pole, 240 Vac Unit-mount with Lugs (See footnotes for I-Line)
275
600
FAL32015(***)
15
20
275
600
FAL32020(***)
600
25
275
FAL32025(***)
30
275
600
FAL32030(***)
35
400
850
FAL32035(***)
40
400
850
FAL32040(***)
45
400
850
FAL32045(***)
50
400
850
FAL32050(***)
800
1450
FAL32060(***)
60
800
1450
FAL32070(***)
70
80
800
1450
FAL32080(***)
90
900
1700
FAL32090(***)
900
1700
FAL32100(***)
100

Ampere
Rating

2008 SQUARE D REF GUIDE Flip 0514.qxd

FA 100A Thermal-Magnetic (240V)
Molded Case Circuit Breaker

Page 33

* Catalog numbers with L in third position are unit mount (Lug/Lug). For I-Line®,
replace the L in the third position with an A and add phasing option.
** For 2-Pole I-Line phasing: Replace (**) with AB or AC or BC.
*** For 3-Pole I-Line phasing: Replace (***) with none (ABC) or CBA.
Circuit breaker termination options
(Third character of catalog number)
F = No Lugs
L = Lugs both ends
M = Lugs “ON” end only
P = Lugs “OFF” end only

33

FAL14015(*)
FAL14020(*)
FAL14025(*)
FAL14030(*)
FAL14035
FAL14040
FAL14045
FAL14050
FAL14060
FAL14070
FAL14080
FAL14090
FAL14100
FAL24015(**)
FAL24020(**)
FAL24025(**)
FAL24030(**)
FAL24035(**)
FAL24040(**)
FAL24045(**)
FAL24050(**)
FAL24060(**)
FAL24070(**)
FAL24080(**)
FAL24090(**)
FAL24100(**)
FAL34015(***)
FAL34020(***)
FAL34025(***)
FAL34030(***)
FAL34035(***)
FAL34040(***)
FAL34045(***)
FAL34050(***)
FAL34060(***)
FAL34070(***)
FAL34080(***)
FAL34090(***)
FAL34100(***)

AL50FA
#14–#4 AWG Cu
or
#12–#4 AWG Al

AL100FA
#14–#1/0 AWG Cu
or
#12–#1/0 AWG Al

AL50FA
#14–#4 AWG Cu
or
#12–#4 AWG Al

AL100FA
#14–#1/0 AWG Cu
or
#12–#1/0 AWG Al

AL50FA
#14–#4 AWG Cu
or
#12–#4 AWG Al

AL100FA
#14–#1/0 AWG Cu
or
#12–#1/0 AWG Al

+ Catalog numbers with L in third position are unit mount (Lug/Lug).
For I-Line®, replace the L in the third position with an A and add phasing option.
* For 1-Pole I-Line 15A through 30A, replace FAL with FY.
** For 2-Pole I-Line phasing: Replace (**) with AB or AC or BC.
*** For 3-Pole I-Line phasing: Replace (***) with ABC or CBA.

34

Page 34

15
275
600
275
600
20
25
275
600
30
275
600
35
400
850
850
40
400
45
400
850
50
400
850
60
800
1450
800
1450
70
80
800
1450
90
900
1700
1700
100
900
2-Pole, 480 Vac, 250 Vdc
275
600
15
275
600
20
275
600
25
275
600
30
400
850
35
40
400
850
400
850
45
400
850
50
1450
60
800
70
800
1450
1450
80
800
90
900
1700
100
900
1700
3-Pole, 480 Vac, 250 Vdc
15
275
600
275
600
20
275
600
25
30
275
600
35
400
850
400
850
40
45
400
850
50
400
850
800
1450
60
70
800
1450
1450
800
80
90
900
1700
900
1700
100

Terminal Wire
Range

9:45 AM

Standard Interrupting Level
(18 kA AIR)
Catalog Number +

10/2/07

AC Magnetic Trip
Settings
Hold
Trip
1-Pole, 277 Vac, 125 Vdc

Ampere
Rating

2008 SQUARE D REF GUIDE Flip 0514.qxd

F-Frame—100 A, Thermal-magnetic (480 Vac)
Molded Case Circuit Breaker

Interrupting Level (AIR)

Current AC Magnetic
Rating Trip Setting
@ 40° C
Hold Trip

D

G

J

L

Cat No.

Cat No.

Cat No.

Cat No.

2-Pole, 240 Vac Unit-mount with Lugs (See footnotes for I-Line*)
70
80
90
100
110
125
150
175
200
225
250

1000
1000
1000
1200
1200
1200
1200
1200
1200
1200
1200

1800 QBL22070(**) QDL22070(**) QGL22070(**) QJL22070(**)
1800 QBL22080(**) QDL22080(**) QGL22080(**) QJL22080(**)
1800 QBL22090(**) QDL22090(**) QGL22090(**) QJL22090(**)
2400 QBL22100(**) QDL22100(**) QGL22100(**) QJL22100(**)
2400 QBL22110(**) QDL22110(**) QGL22110(**) QJL22110(**)
2400 QBL22125(**) QDL22125(**) QGL22125(**) QJL22125(**)
2400 QBL22150(**) QDL22150(**) QGL22150(**) QJL22150(**)
2400 QBL22175(**) QDL22175(**) QGL22175(**) QJL22175(**)
2400 QBL22200(**) QDL22200(**) QGL22200(**) QJL22200(**)
2400 QBL22225(**) QDL22225(**) QGL22225(**) QJL22225(**)
2400 QBL22250(****) QDL22250(****) QGL22250(****) QJL22250(****)

3-Pole, 240 Vac Unit-mount with Lugs (See footnotes for I-Line*)
1800
1800
1800
2400
2400
2400
2400
2400
2400
2400
2400

QBL32070(***) QDL32070(***) QGL32070(***) QJL32070(***)
QBL32080(***) QDL32080(***) QGL32080(***) QJL32080(***)
QBL32090(***) QDL32090(***) QGL32090(***) QJL32090(***)
QBL32100(***) QDL32100(***) QGL32100(***) QJL32100(***)
QBL32110(***) QDL32110(***) QGL32110(***) QJL32110(***)
QBL32125(***) QDL32125(***) QGL32125(***) QJL32125(***)
QBL32150(***) QDL32150(***) QGL32150(***) QJL32150(***)
QBL32175(***) QDL32175(***) QGL32175(***) QJL32175(***)
QBL32200(***) QDL32200(***) QGL32200(***) QJL32200(***)
QBL32225(***) QDL32225(***) QGL32225(***) QJL32225(***)
QBL32250(****) QDL32250(****) QGL32250(****) QJL32250(****)

* Catalog numbers with L in third position are unit mount (Lug/Lug).
For I-Line®, replace the L in the third position with an A and add phasing option.
** 2-Pole I-Line phasing: 1 (AB); 2 (AC); 3 (BA); 4 (BC); 5 (CA); 6 (CB).
*** 3-Pole I-Line phasing option: none (ABC); 6 (CBA).

9:45 AM

1000
1000
1000
1200
1200
1200
1200
1200
1200
1200
1200

10/2/07

70
80
90
100
110
125
150
175
200
225
250

2008 SQUARE D REF GUIDE Flip 0514.qxd

PowerPact Q-Frame Thermal-Magnetic Molded Case
Circuit Breaker (240Vac)

**** I-Line not available in 250A.

Page 35

250A lugs are suitable for copper conductors only.
Lugs accept (1) #4 AWG–300 kcmil.
Replacement lugs not available for Powerpact Q-frame circuit breakers.

INTERRUPTING RATINGS (kA)
240 V

QB

QD

QG

QJ

10

25

65

100+

+ 3-Pole QJ circuit breakers are rated at 208Y/120 Vac only.

35

Interrupting Level (AIR)

Current AC Magnetic
Rating Trip Setting
@ 40° C
Hold Trip

D
Cat No.

G
Cat No.

J
Cat No.

L
Cat No.

Page 36

INTERRUPTING RATINGS (kA)
D

G

J

L

240V
480VAC

25
18

65
35

100
65

125
100

600VAC

14

18

25

50

250Vdc

20

20

20

20

500Vdc

20

20

20

20

9:45 AM

* Catalog numbers with L in third position are unit mount (Lug/Lug).
For I-Line®, replace the L in the third position with an A and add phasing option.
** 2-Pole I-Line phasing: 1 (AB); 2 (AC); 3 (BA); 4 (BC); 5 (CA); 6 (CB).
*** 3-Pole I-Line phasing: None (ABC); 6 (CBA).
Terminal lugs: AL150HD #14-#3/0 AWG Cu or Al.

10/2/07

2-Pole, 600 Vac 50/60 Hz
See footnotes for I-Line Cat. Nos.*
15
350
750 HDL26015(**) HGL26015(**) HJL26015(**) HLL26015(**)
20
350
750 HDL26020(**) HGL26020(**) HJL26020(**) HLL26020(**)
25
350
750 HDL26025(**) HGL26025(**) HJL26025(**) HLL26025(**)
30
350
750 HDL26030(**) HGL26030(**) HJL26030(**) HLL26030(**)
35
400
850 HDL26035(**) HGL26035(**) HJL26035(**) HLL26035(**)
40
400
850 HDL26040(**) HGL26040(**) HJL26040(**) HLL26040(**)
45
400
850 HDL26045(**) HGL26045(**) HJL26045(**) HLL26045(**)
50
400
850 HDL26050(**) HGL26050(**) HJL26050(**) HLL26050(**)
60
800
1450 HDL26060(**) HGL26060(**) HJL26060(**) HLL26060(**)
70
800
1450 HDL26070(**) HGL26070(**) HJL26070(**) HLL26070(**)
80
800
1450 HDL26080(**) HGL26080(**) HJL26080(**) HLL26080(**)
90
800
1450 HDL26090(**) HGL26090(**) HJL26090(**) HLL26090(**)
100
900
1700 HDL26100(**) HGL26100(**) HJL26100(**) HLL26100(**)
110
900
1700 HDL26110(**) HGL26110(**) HJL26110(**) HLL26110(**)
125
900
1700 HDL26125(**) HGL26125(**) HJL26125(**) HLL26125(**)
150
900
1700 HDL26150(**) HGL26150(**) HJL26150(**) HLL26150(**)
3-Pole, 600 Vac 50/60 Hz
See footnotes for I-Line Cat. Nos.*
15
350
750 HDL36015(***) HGL36015(***) HJL36015(***) HLL36015(***)
20
350
750 HDL36020(***) HGL36020(***) HJL36020(***) HLL36020(***)
25
350
750 HDL36025(***) HGL36025(***) HJL36025(***) HLL36025(***)
30
350
750 HDL36030(***) HGL36030(***) HJL36030(***) HLL36030(***)
35
400
850 HDL36035(***) HGL36035(***) HJL36035(***) HLL36035(***)
40
400
850 HDL36040(***) HGL36040(***) HJL36040(***) HLL36040(***)
45
400
850 HDL36045(***) HGL36045(***) HJL36045(***) HLL36045(***)
50
400
850 HDL36050(***) HGL36050(***) HJL36050(***) HLL36050(***)
60
800
1450 HDL36060(***) HGL36060(***) HJL36060(***) HLL36060(***)
70
800
1450 HDL36070(***) HGL36070(***) HJL36070(***) HLL36070(***)
80
800
1450 HDL36080(***) HGL36080(***) HJL36080(***) HLL36080(***)
90
800
1450 HDL36090(***) HGL36090(***) HJL36090(***) HLL36090(***)
100
900
1700 HDL36100(***) HGL36100(***) HJL36100(***) HLL36100(***)
110
900
1700 HDL36110(***) HGL36110(***) HJL36110(***) HLL36110(***)
125
900
1700 HDL36125(***) HGL36125(***) HJL36125(***) HLL36125(***)
150
900
1700 HDL36150(***) HGL36150(***) HJL36150(***) HLL36150(***)

2008 SQUARE D REF GUIDE Flip 0514.qxd

PowerPact H-Frame (150 A) Thermal-magnetic Molded Case
Circuit Breakers (600 Vac)

36

Interupting Level (AIR)

Current AC Magnetic
Rating Trip Setting
@ 40° C
Low High

D
Cat No.*

2-Pole, 600 Vac 50/60 Hz
150
175
200
225
250

750
875
1000
1125
1250

1500
1750
2000
2250
2500

150
175
200
225
250

750
875
1000
1125
1250

1500
1750
2000
2250
2500

J
Cat No.*

L
Cat No.*

See footnotes for I-Line Cat. Nos.*

JDL26150(**)
JDL26175(**)
JDL26200(**)
JDL26225(**)
JDL26250(**)

3-Pole, 600 Vac 50/60 Hz

G
Cat No.*

JGL26150(**)
JGL26175(**)
JGL26200(**)
JGL26225(**)
JGL26250(**)

JJL26150(**)
JJL26175(**)
JJL26200(**)
JJL26225(**)
JJL26250(**)

JJL26150(**)
JJL26175(**)
JJL26200(**)
JJL26225(**)
JJL26250(**)

See footnotes for I-Line Cat. Nos.*

JDL36150(***)
JDL36175(***)
JDL36200(***)
JDL36225(***)
JDL36250(***)

JGL36150(***)
JGL36175(***)
JGL36200(***)
JGL36225(***)
JGL36250(***)

JJL36150(***)
JJL36175(***)
JJL36200(***)
JJL36225(***)
JJL36250(***)

JJL36150(***)
JLL36175(***)
JLL36200(***)
JLL36225(***)
JLL36250(***)

Standard terminal lugs: AL175JD #3/0 - 350 kcmil Cu or Al.
* Catalog numbers with L in third position are unit mount (Lug/Lug).
For I-Line®, replace the L in the third position with an A and add phasing option.
** 2-Pole I-Line phasing: 1 (AB); 2 (AC); 3 (BA); 4 (BC); 5 (CA); 6 (CB).
*** 3-Pole I-Line phasing option: None (ABC); 6 (CBA).

10/2/07

Terminal lugs: AL150HD #14-#3/0 AWG Cu or Al.

INTERRUPTING RATINGS (kA)
G

J

L

240V
480VAC

25
18

65
35

100
65

125
100

600VAC

14

18

25

50

250Vdc

20

20

20

20

500Vdc

20

20

20

20

9:45 AM

D

2008 SQUARE D REF GUIDE Flip 0514.qxd

PowerPact J-Frame (250 A) Thermal-magnetic
(600 Vac) Molded Case Circuit Breaker

H- and J-Frame termination options (third digit in catalog number).
=
=
=
=
=
=
=

Page 37

F
L
M
P
N
D
S

No Lugs (includes terminal nut kit)
Lugs both ends
Lugs “ON” end Terminal Nut Kit “Off” end
Lugs “OFF” end Terminal Nut Kit “On” end
Plug-in
Drawout
Rear Connected

37

FactoryInstalled
Suffix

…
…
…
…
…
…
…

AA AB SA

AB SO
AA UA
AA UO

S29384
S29385
S29386
S29387
S29388
S29382
S29390
S29392
S29406
S29410
S29450
S29450
S29450
S29450
S29450
S29450
S29450

(2)
+ S29386
+ S29387
+ S29390
+ S29386
+ S29387

S29450 (2) + S29386
S29450 (2) + S29387
S29450 (2) + 29390
S29450 + S29406
S29450 + S29410

None

Grounded B-Phase Ratings Included in
Standard Product

…

SA LC

120Vac Shunt Trip + Copper Lugs

S29386 + CU150HD
or CU250JD

SD LC

240Vac Shunt Trip + Copper Lugs

S29387 + CU150HD
or CU250JD

SO LC

24Vdc Shunt Trip + Copper Lugs

S29390 + CU150HD
or CU250JD

38

Page 38

Optional Electrical Auxiliaries
24Vac Shunt Trip
48Vac Shunt Trip
120Vac Shunt Trip
208-277Vac Shunt Trip
380-480Vac Shunt Trip
12Vdc Shunt Trip
24Vdc Shunt Trip
48Vdc Shunt trip
120Vac Undervoltage Release
24Vdc Undervoltage Release
1A/1B Aux Switch
2A/2B Aux Switch
1A/1B Aux Switch + 120Vac Shunt Trip
1A/1B Aux Switch + 240Vac Shunt Trip
1A/1B Aux Switch + 24Vdc Shunt Trip
1A/1B Aux Switch + 120Vac Shunt Trip
1A/1B Aux Switch + 240Vac Shunt Trip
1A/1B Aux Switch + Alarm Switch + 120Vac
Shunt Trip
1A/1B Aux Switch + Alarm Switch + 240Vac
Shunt Trip
2A/2B Aux Switch + 24Vdc Shunt Trip
1A/1B Aux Switch + 120Vac Undervoltage
Release
1A/1B Aux Switch + 24Vdc Undervoltage
Release

AL150HD
AL175JD
AL250JD
CU150HD
CU250JD
S37444
S37445

9:45 AM

AA AB SD

Optional Connectors
H-Frame Lug #14-3/0 AWG AL or Cu
J-Frame Lug #4-4/0 AWG AL or Cu
J-Frame Lug #3/0-350 kcmil AL or Cu
H-Frame Copper Lugs #14-2/0 AWG Cu
J-Frame Copper Lugs #1-300 kcmil
H-Frame Terminal Nut Insert Kit (qty 3)
J-Frame Terminal Nut Insert Kit (qty 3)

Kit Catalog No. (s)
(Field-Installable)

10/2/07

SK
SL
SA
SD
SH
SN
SO
SP
UA
UO
AA
AB
AA SA
AA SD
AA SO
AA SA
AA SD

Description

2008 SQUARE D REF GUIDE Flip 0514.qxd

Accessories for PowerPact H- and J-Frame

2008 SQUARE D REF GUIDE Flip 0514.qxd

PowerPact D-Frame (600 A) Thermal-magnetic
(600 Vac) Molded Case Circuit Breaker
with STR23SP Electronic Trip Unit
Current Rating
@ 40° C

Interrupting Level (AIR)
G
Cat No.*

J
Cat No.*

L
Cat No.*

DJL36150E20
DJL36250E20
DJL36400E20
DJL36600E20

–
–
DLL36400E20
DLL36600E20

3-Pole Cable Connection Unit-Mount
150**
250**
400**
600

DGL36150E20
DGL36250E20
DGL36400E20
DGL36600E20

4-Pole - Adjustable Neutral Protection Setting: Off, 50%, 100%
150**
250**
400**
600

DGL46150E20
DGL46250E20
DGL46400E20
DGL46600E20

DJL46150E20
DJL46250E20
DJL46400E20
–

–
–
DLL46400E20
DLL46600E20

4-Pole Oversized Neutral Protection - Adjustable Neutral Protection
150
250
400
600

–
DGL56250E20
DGL56400E20
–

–
DJL56250E20
DJL56400E20
DJL46600E20

–
DLL56250E20
DLL56400E20
–

* Catalog numbers with L in third position are unit mount (Lug/Lug).
For Bus Bar connection, replace the L with an F.
** 100% Rated.

10/2/07

INTERRUPTING RATINGS (kA)
G

J

L

65
35

100
65

125
100

600VAC

18

25

250Vdc

20

20

20

500Vdc

20

20

20

9:45 AM

240V
480VAC

50

Page 39

39

How to select a NEMA style contactor or starter
1. Select type of device:
contactor or starter
2. Select number of poles
3. Select size

4. Select motor voltage
5. Select horsepower
6. Select motor full
load amps

7. Select control voltage
(separate, common or
control transformer)
8. Select overload type

9. Select enclosure style
10. Select accessories
(push buttons, pilot lights,
auxiliary contacts, etc.)

CATALOG NUMBER DESCRIPTION – See Digest for available products

8502

Class
8502 = NEMA style contactor
8536 = NEMA style starter

S

B

G

2

VO2

P1S

Type
NEMA Size
00 = A
2=D
5=G

0=B
3=E
6=H

Enclosure
O = Open type
W = NEMA Type 4 & 4x

1=C
4=F
7=J
G = NEMA Type 1
A = NEMA 12 Industrial Use

Physical Arrangement
Designates numbers of poles, fuse clip size, etc. Consult Digest for details.
Coil Voltage
VO1 = 24
VO7 = 600

VO2 = 120
VO8 = 208

VO3 = 240
V99 = Specify

VO6 = 480

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 40

40

Forms (Factory Modifications)
See Digest

Contact
Ampere
Ratings

Voltage Code:
No. of
Poles

Open
Type

NEMA Type 1
Enclosure

2

8903LO20_ _ _

8903LG20_ _ _

3

8903LO30_ _ _

8903LG30_ _ _

24

V01

4

8903LO40_ _ _

8903LG40_ _ _

120

V02

6

8903LO60_ _ _

8903LG60_ _ _

208

V08

8

8903LO80_ _ _

8903LG80_ _ _

240

V03

10

8903LO1000_ _ _

8903LG1000_ _ _

277

V04

12

8903LO1200_ _ _

8903LG1200_ _ _

480

V06

2

8903LXO20_ _ _

8903LXG20_ _ _

3

8903LXO30_ _ _

8903LXG30_ _ _

24

V01

4

8903LXO40_ _ _

8903LXG40_ _ _

120

V02

6

8903LXO60_ _ _

8903LXG60_ _ _

208

V08

8

8903LXO80_ _ _

8903LXG80_ _ _

240

V03

Volts

Code

Electrically Held

30

Add Voltage Code:

Mechanically Held

8903LXO1000_ _ _ 8903LXG1000_ _ _

277

V04

12

8903LXO1200_ _ _ 8903LXG1200_ _ _

480

V06

9:45 AM

10

10/2/07

30

Add Voltage Code:

2008 SQUARE D REF GUIDE Flip 0514.qxd

LIGHTING CONTACTORS
Class 8903 Multipole Lighting Contactors

Page 41

41

Cont.
NEMA Current
Size
Rating

0

18

Motor
Volts

Max.
H.P.

*
230

3

*
1

27

120

_ _ _ _SBO2V02S

_ _ _ _SBG2V02S

240

_ _ _ _SBO2V03

_ _ _ _SBG2V03

120

8502SCO2V02S
8536SCO3V02S
8502SCO2V08
8536SCO3V08
8502SCO2V03
8536SCO3V03
8502SCO2V06
8536SCO3V06

8502SCG2V02S
8536SCG3V02S
8502SCG2V08
8536SCG3V08
8502SCG2V03
8536SCG3V03
8502SCG2V06
8536SCG3V06

8502SDO2V02S
8536SDO1V02S
8502SDO2V08
8536SDO1V08
8502SDO2V03
8536SDO1V03

8502SDG2V02S
8536SDG1V02S
8502SDG2V08
8536SDG1V08
8502SDG2V03
8536SDG1V03

208

230

7 1/2

240

460

10

480
120

200

10

208

230

15

240

460

25

45
480

8502SDO2V06
8536SDO1V06

8502SDG2V06
8536SDG1V06

120

8502SEO2V02S
8536SEO1V02S
8502SEO2V08
8536SEO1V08
8502SEO2V03
8536SEO1V03
8502SEO2V06
8536SEO1V06

8502SEG2V02S
8536SEG1V02S
8502SEG2V08
8536SEG1V08
8502SEG2V03
8536SEG1V03
8502SEG2V06
8536SEG1V06

200

25

208

230

30

240

460

50

480

90

120Volt Polyphase contactors are wired for separate control.

10/2/07

*

NEMA Type 1
Enclosure

7 1/2

*
3

Open
Type

200

*
2

Coil
Volt.

2008 SQUARE D REF GUIDE Flip 0514.qxd

NEMA CONTACTORS AND STARTERS
For contactors select Class 8502, for starters Class 8536, followed by type:

MOTOR LOGICTM SOLID STATE OVERLOAD RELAY
Feature Unit
Trip Class 10/20
Separate Direct
Mount
Mount
SF020
SF120
SF220
ST220
SF320
ST320

Add the following form to the starter catalog number to substitute for melting alloy
overload relay.
Form
H10
H20
H30

42

Page 42

CLASS 9065
Base Unit
Trip Class 10
Trip Class 20
Separate
Direct Separate
Direct
Mount
Mount
Mount
Mount
SS010
SS020
SS110
SS120
SS210
SR210
SS220
SR220
SS310
SR310
SS320
SR320

9:45 AM

Full Load
Current,
Size
Amps
0
6-18
1
9-27
2
15-45
3
30-90

2008 SQUARE D REF GUIDE Flip 0514.qxd

AC MAGNETIC STARTER THERMAL UNITS
SIZE 00-1 STANDARD TRIP
Class

Type

Series

Size

8536

SA
SB
SC

A, B
A
A

00
0
1
Thermal
Unit
Number

0.29-0.31

0.29-0.31

0.28-0.30

B 0.44

0.32-0.34

0.32-0.34

0.31-0.34

B 0.51

0.35-0.38

0.35-0.38

0.35-0.37

B 0.57

0.39-0.45

0.39-0.45

0.38-0.44

B 0.63

0.46-0.54

0.46-0.54

0.45-0.53

B 0.71

0.55-0.61

0.55-0.61

0.54-0.59

B 0.81

0.62-0.66

0.62-0.66

0.60-0.64

B 0.92

0.67-0.73

0.67-0.73

0.65-0.72

B 1.03

0.74-0.81

0.74-0.81

0.73-0.80

B 1.16

0.82-0.94

0.82-0.94

0.81-0.90

B 1.30

0.95-1.05

0.95-1.05

0.91-1.03

B 1.45

1.06-1.22

1.06-1.22

1.04-1.14

B 1.67

1.23-1.34

1.23-1.34

1.15-1.27

B 1.88

1.35-1.51

1.35-1.51

1.28-1.43

B 2.10

1.52-1.71

1.52-1.71

1.44-1.62

B 2.40

1.72-1.93

1.72-1.93

1.63-1.77

B 2.65

1.94-2.14

1.94-2.14

1.78-1.97

B 3.00

2.15-2.40

2.15-2.40

1.98-2.32

B 3.30

2.41-2.72

2.41-2.72

2.33-2.51

B 3.70

2.73-3.15

2.73-3.15

2.52-2.99

B 4.15

3.16-3.55

3.16-3.55

3.00-3.42

B 4.85

3.56-4.00

3.56-4.00

3.43-3.75

B 5.50

4.01-4.40

4.01-4.40

3.76-3.98

B 6.25

4.41-4.88

4.41-4.88

3.99-4.48

B 6.90

4.89-5.19

4.89-5.19

4.49-4.93

B 7.70

Page 43

3 T.U.

9:45 AM

2 T.U.

Motor
Full-Load Current (Amp)

10/2/07

1 T.U.

43

2008 SQUARE D REF GUIDE Flip 0514.qxd

AC MAGNETIC STARTER THERMAL UNITS
SIZE 00-1 STANDARD TRIP (CONTINUED)

1 T.U.

Motor
Full-Load Current (Amp)
2 T.U.

3 T.U.

Thermal
Unit
Number

5.20-5.73

5.20-5.73

4.94-5.21

B 8.20

5.74-6.39

5.74-6.39

5.22-5.84

B 9.10

6.40-7.13

6.40-7.13

5.85-6.67

B 10.2

7.14-7.90

7.14-7.90

6.68-7.54

B 11.5

7.91-8.55

7.91-8.55

7.55-8.14

B 12.8

8.56-9.53

8.56-9.53

8.15-8.72

B 14.0

9.54-10.6

9.54-10.6

8.73-9.66

B 15.5

10.7-11.8

10.7-11.8

9.67-10.5

B 17.5
B 19.5

11.9-13.2

11.9-12.0

10.6-11.3

13.3-14.9

—

11.4-12.0

B 22.0

15.0-16.6

—

—

B 25.0

16.7-18.0

—

—

B 28.0

10/2/07

Following Selections for Size 1 Only
—

B 19.5

13.3-14.9

11.4-12.7

B 22.0

—

15.0-16.6

12.8-14.1

B 25.0

16.7-18.9

16.7-18.9

14.2-15.9

B 28.0

19.0-21.2

19.0-21.2

16.0-17.5

B 32.0

21.3-23.0

21.3-23.0

17.6-19.7

B 36.0

23.1-25.5

23.1-25.5

19.8-21.9

B 40.0

25.6-26.0

25.6-26.0

22.0-24.4

B 45.0

—

—

24.5-26.0

B 50.0

Page 44

11.9-13.2

—

9:45 AM

—

44

2008 SQUARE D REF GUIDE Flip 0514.qxd

AC MAGNETIC STARTER THERMAL UNITS
SIZE 2 STANDARD TRIP
Class

Type

Series

8536

SD

A

Size
2

1 or 2 T.U.

3 T.U.

Thermal
Unit
Number

3.29-3.74

3.18-3.40

B 4.85

3.75-4.23

3.41-3.76

B 5.50

4.24-4.68

3.77-4.00

B 6.25

4.69-5.22

4.01-4.57

B 6.90

5.23-5.67

4.58-5.03

B 7.70

5.68-6.13

5.04-5.32

B 8.20

6.14-6.91

5.33-5.97

B 9.10

6.92-7.70

5.98-6.88

B 10.2

7.71-8.56

6.89-7.82

B 11.5

8.57-9.39

7.83-8.47

B 12.8

9.40-10.4

8.48-9.15

B 14.0

10.5-11.6

9.16-10.1

B 15.5

Motor
Full-Load Current (Amp)

B 19.5

14.7-16.5

12.1-13.6

B 22.0

16.6-18.5

13.7-15.2

B 25.0

18.6-21.0

15.3-17.1

B 28.0

21.1-23.6

17.2-19.0

B 32.0

23.7-26.3

19.1-21.5

B 36.0

26.4-29.3

21.6-24.1

B 40.0

29.4-35.1

24.2-27.0

B 45.0

35.2-36.1

27.1-28.7

B 50.0

36.2-39.1

28.8-30.4

B 56.0

39.2-41.5

30.5-32.2

B 62.0

41.6-45.0

32.3-35.4

B 70.0

—

35.5-38.2

B 79.0

—

38.3-45.0

B 88.0

Page 45

B 17.5

11.3-12.0

9:45 AM

10.2-11.2

10/2/07

11.7-12.9
13.0-14.6

45

2008 SQUARE D REF GUIDE Flip 0514.qxd

AC MAGNETIC STARTER THERMAL UNITS
SIZE 3 STANDARD TRIP
Class

Type

Series

8536

SE

A

3

Motor
Full-Load Current (Amp)

Size

13.6-14.5

CC 20.9

16.5-17.6

15.4-16.4

14.6-15.5

CC 22.8

17.7-19.1

16.5-18.4

15.6-17.4

CC 24.6

19.2-20.4

18.5-19.6

17.5-18.5

CC 26.3

20.5-22.1

19.7-21.0

18.6-19.9

CC 28.8

22.2-23.4

21.1-22.7

20.0-21.5

CC 31.0

23.5-25.6

22.8-24.2

21.6-22.9

CC 33.3

25.7-27.3

24.3-25.9

23.0-24.5

CC 36.4

27.4-29.4

26.0-27.8

24.6-26.3

CC 39.6

29.5-31.5

27.9-29.8

26.4-28.2

CC 42.7

31.6-33.7

29.9-31.7

28.3-30.0

CC 46.6

33.8-36.5

31.8-34.2

30.1-32.3

CC 50.1

36.6-39.1

34.3-36.9

32.4-34.9

CC 54.5

39.2-41.7

37.0-39.8

35.0-37.6

CC 59.4

41.8-44.8

39.9-42.3

37.7-40.0

CC 64.3

44.9-48.0

42.4-45.3

40.1-42.8

CC 68.5

48.1-50.7

45.4-47.9

42.9-45.3

CC 74.6

50.8-54.9

48.0-51.9

45.4-49.1

CC 81.5

55.0-59.9

52.0-56.5

49.2-53.4

CC 87.7

60.0-63.3

56.6-60.7

53.5-57.4

CC 94.0

63.4-67.2

60.8-64.8

57.5-61.3

CC 103.0

67.3-72.4

64.9-67.1

61.4-63.5

CC 112.0

72.5-74.9

67.2-70.1

63.6-66.3

CC 121.0

75.0-77.4

70.2-72.9

66.4-69.0

CC 132.0

77.5-80.7

73.0-74.9

69.1-70.9

CC 143.0

80.8-83.1

75.0-77.9

71.0-73.7

CC 156.0

83.2-86.0

78.0-80.9

73.8-76.5

CC 167.0

—

81.0-82.9

76.6-78.4

CC 180.0

—

83.0-86.0

78.5-86.0

CC 196.0

Page 46

3 T.U.

14.4-15.3

9:45 AM

2 T.U.

15.5-16.4

10/2/07

1 T.U.

Thermal
Unit
Number

46

Max. Horsepower
No. of
Type Poles
FO

1,2

Motor Type
AC

115

Single Phase

230

460

DC Rating
575

90

1

Single Phase

115

230

3/4, 2 P Only

KO1

2

2

2

KO2

3

Three Phase

2

7 1/2

10

10

1

2

1 1/2

KO5

2

Single Phase

2

3

7 1/2

3

10

3

1

1

2

2

1 1/2

1 1/2

KO6

3

Three Phase

2

7 1/2

15

20

1

2

1 1/2

MANUAL STARTERS & SWITCHES
No. of
Poles

Features

Open

NEMA Type 1
Enclosed

Class 2510, Type F Manual Starter, Fractional H.P., Toggle
1
2

Standard

2510FO1

With Pilot Light

2510FO1P

2510FG1
2510FG1P

Standard

2510FO2

2510FG2

With Pilot Light

2510FO2P

2510FG2P

Class 2510, Type K Non-Reversing Manual Switch, Toggle
Standard
2

2510KG1A

2510KO1B

2510KG1B

Standard

2510KO5

With Pilot Light 115Vac

2510KO5A

2510KG5A

230Vac

2510KO5B

2510KG5B

Standard
3

2510KG2

With Pilot Light 208-277Vac

2510KO2B

2510KG2B

440-600Vac

2510KO2C

2510KG2C

2510KO6

2510KG6

*

*

With Pilot Light 208-277Vac

2510KO6B

2510KG6B

440-600Vac

2510KO6C

2510KG6C

*

9:45 AM

*

2510KG5

*

2510KO2

Standard
3

2510KG1

2510KO1A

230Vac

10/2/07

2

2510KO1

With Pilot Light 115Vac

2008 SQUARE D REF GUIDE Flip 0514.qxd

CLASS 2510 HORSEPOWER RATINGS

Factory order

Page 47

47

How to select an IEC style contactor
1.
2.
3.
4.

Select
Select
Select
Select

reversing or non-reversing
the number of poles
the type of load and full load voltage (FLA)
the motor’s horsepower and voltage

5. Select the control voltage and frequency of the coil
6. Determine if thermal overload protection is required
7. Select accessories/options

CATALOG NUMBER DESCRIPTION – See IEC Starter Catalog Number 8502CT9901R2/01
LC

Contactor
LC = Contactor w/ AC coil
LP = Contactor w/ DC coil

1

-K

09

10

G

6

Load/Reversing
1 = Full voltage non-reversing
2 = Full voltage, reversing
Full Load Amperage
K = K-line contactors 6 to 12A
D = D-line contactors 9 to 150A

F = F-line contactors 185 to 800A

Contactor Full Load Amperage (FLA) i.e.
06
18
40
80
185
09
25
50
115
265
12
32
65
150
330

09=9 FLA
400
780
500
800
630

Auxiliary Contacts and/or Power Poles (Required only for K-line Contactors)
10 = 1 N.O. auxiliary contact
004 = 4 N.O. power poles, 0 auxiliary contacts
01 = 1 N.C. auxiliary contact
008 = 2 N.O. & 2 N.C. power poles, 0 auxiliary contacts
11 = 1 N.O. & N.C. auxiliary contact
K-line contactors offer a choice of power terminations standard
Coil Voltage
J = 12V
C = 36V
F = 110V
L = 208V
U = 240V
Q = 380V
Z = 20V
D = 42V
G = 120V
M = 220V
W = 256V 50 Hz
V = 400V
B = 24V
E = 48V
= 125V DC
P = 230V
= 277V 60 Hz
N = 415V
= 127V 50 Hz
AC Frequency
5 = 50 Hz
6 = 60Hz
7 = Dual frequency
DC coils:
D = Standard range
W = Wide range

*

R = 440V
T = 480V
S = 500V 50 Hz
= 575V 60 Hz

X = 600V
Y = 660V

*

*

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 48

48

Not all Voltage/Frequency combinations are available.

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 49

Max.
Motor
FLA

Motor Voltage
200VAC
220VAC
460VAC
575VAC
Max. 3 Phase Horsepower Ratings

6

1.5

1.5

3

3

9
12
18
25
32

2
3
5
7.5
10

2
3
5
7.5
10

5
7.5
10
15
20

7.5
10
15
20
30

40
50
65
80

10
15
20
30

10
15
20
30

30
40
50
60

30
40
50
60

115
150

30
40

40
50

75
100

100
125

Coil
Voltage
110 VAC
120
120
120
120
120
120
120
120
120
120
120

VAC
VAC
VAC
VAC
VAC
VAC
VAC
VAC
VAC
VAC
VAC

Integrated
Auxiliary Contacts
N.O.
N.C.
1
1
1
1
1
1
1
1
1
1
-

1
1
1
1
1
1
1
1
1
1
-

49

TELEMECANIQUE® IEC STYLE THREE POLE CONTACTORS
Catalog
Number
LC1K0610F7
LC1K0601F7
LC1D09G7
LC1D12G7
LC1D18G7
LC1D25G7
LC1D32G7
LC1D40G7
LC1D50G7
LC1D65G7
LC1D80G7
LC1D115G7
LC1D150G7

Motor FLA
setting range

For direct mounting
beneath contactor:

CLASS 10 Catalog
Number
with single phase sensitivity

0.10 to 0.16

LRD01

0.16 to 0.25

LRD02

0.25 to 0.40

LRD03

0.40 to 0.63

LRD04

0.63 to 1

LRD05

1 to 1.6

LC1D09 to D32

LRD06

1.6 to 2.5

LRD07

2.5 to 4

LRD08

4 to 6

LRD10

5.5 to 8

LRD12

7 to 10

LRD14

9 to 13

LC1D12 to D32

12 to 18

LC1D18 to D32

16 to 24

LC1D25 to D32

30 to 38

LRD32
LC1D32

17 to 25
23 to 32

LC1D40 to D80

9:45 AM

LRD3361
LRD3363
LRD4365

LCD115 to D150

Page 50

80 to 104

110 to 140

LRD3357
LRD3359

LC1D65 to D80

63 to 80

95 to 120

LRD3353
LRD3355

LC1D50 to D80

48 to 65
55 to 70

LRD35
LRD3322

30 to 40
37 to 50

LRD21
LRD22

10/2/07

23 to 32

LRD16

2008 SQUARE D REF GUIDE Flip 0514.qxd

TELEMECANIQUE® IEC STYLE THREE POLE OVERLOAD RELAYS

LRD4367
LRD4369

50

Description

Color

Cat. No.

Green

XVBC33

Red

XVBC34

Steady Lens

Orange

XVBC35

(Requires wiring base)

Blue

XVBC36

Clear

XVBC37

Yellow

XVBC38

XVB INDICATING BEACONS (not stackable)
Description

Steady Lens & Wiring Base

Color

Cat. No.

Green

XVBL33

Red

XVBL34

Orange

XVBL35

Blue

XVBL36

Clear

XVBL37

Yellow

XVBL38

10/2/07

XVB ACCESSORIES
Description

Cat. No.

Wiring Base & Cap (for up to 5 lenses)

XVBC21

4” Mounting Tube

XVBC02
XVBC11

1/2” NPT Adaptor

XVBC00

24VAC/DC 10 Watt Lamp

DL1BLB

120VAC/DC 10 Watt Lamp

DL1BLG

9:45 AM

Metal Mounting Base

2008 SQUARE D REF GUIDE Flip 0514.qxd

XVB INDICATING BANKS (Stackable up to 5 units high)

Page 51

51

2008 SQUARE D REF GUIDE Flip 0514.qxd

16MM PUSH BUTTONS
Catalog Number
Description

Operator
Only;
No
Contacts

Color

1 N.O.;
1 N.C.

White

ZB6AA1

XB6AA15B

Black

ZB6AA2

XB6AA25B

Flush Head,

Green

ZB6AA3

XB6AA35B

Spring Return

Red

ZB6AA4

XB6AA45B

Yellow

ZB6AA5

XB6AA55B

Blue

ZB6AA6

XB6AA65B

16MM SELECTOR SWITCHES
2 Position, maintained

Black handle

ZB6AD22

XB6AD225B

3 Position, maintained

Black handle

ZB6AD23

XB6AD235B

2 Position, maintained

Key

ZB6AGC

XB6AGC5B

3 Position, maintained

Key

ZB6AGH

XB6AGH5B

1 N.O.; 1 N.C.
ZB6Z5B

Catalog Number
1 N.O.

1 N.C.

ZB6Z1B

ZB6Z2B

10/2/07

16MM CONTACT BLOCK/MOUNTING BASE

Description
LED

Color
White
Green

XB6AV1BG
XB6AV3BG

Red

XB6AV4BG

Yellow

XB6AV5BG

Blue

XB6AV6BB

Page 52

Round Pilot Light

Cat. Number
48-120 volt ac/dc

9:45 AM

16MM PILOT LIGHTS

52

2008 SQUARE D REF GUIDE Flip 0514.qxd

22MM PUSH BUTTONS
Description

Color

Cat. No.
Operator Only
No Contacts

Black
Green
Red
6 Color Inserts
Black
Red
Red “STOP”

Flush Head

Extended Head

ZB4BA2
ZB4BA3
ZB4BA4
ZB4BA9
ZB4BL2
ZB4BL4
ZB4BL434

2 Position Mushroom
40mm

Red

ZB4BT4

Turn-To-Release

Red

ZB4BS54

Black
Black

ZB4BD2
ZB4BD3

22MM SELECTOR SWITCHES
2 Position Maintained
3 Position Maintained

22MM CONTACT BLOCKS & MOUNTING BASE
Catalog Number
1 N.O.

1 N.C.

ZB4BZ105

ZB4BZ101

ZB4BZ102

10/2/07

1 N.O.; 1 N.C.

22MM PILOT LIGHTS
Description

Color
Green
Red
Amber

9:45 AM

Standard Pilot Lights

Cat. No.
Operator Only
ZB4BV03
ZB4BV04
ZB4BV05

22MM PILOT LIGHT MODULES
Light Module

Lamp

24 VAC/DC Direct Supply
120 VAC/DC Direct Supply

ZB4BV6
ZB4BV6
ZB4BV3

DL1CE024
DL1CE130

110/120V 50-60Hz Transformer

Page 53

Catalog Number
Description

Included

53

Catalog Number
Description

Operator
Only;
No
Contacts

1 N.O.;
1 N.C.

Universal

**
**
Universal
**

9001KR1U

9001KR1UH13

Universal

9001KR2U

9001KR2UH13

9001KR3U

9001KR3UH13

Red

9001KR9R

9001KR9RH13

Color

Full Guard
Extended Guard
No Guard
2 Position Mushroom
Maintained Push-

Red - Premarked

Maintained Pull

“Emergency Stop”

9001KR9R05 9001KR9R05H13

SELECTOR SWITCHES
2 Position Maintained

Black

9001KS11B

9001KS11BH13

3 Position Maintained

Black

9001KS43B

9001KS43BH13

PILOT LIGHTS
Standard Pilot Light
120V Transformer

Red

9001KP1R31

Green

9001KP1G31

10/2/07

**Universal color inserts include: Black, Blue, Green, Orange, Red, White, Yellow

2008 SQUARE D REF GUIDE Flip 0514.qxd

30MM PUSH BUTTONS & PILOT LIGHTS

30MM CONTACT BLOCKS

9:45 AM

Catalog Number
1 N.O.; 1 N.C.

1 N.O.

1 N.C.

9001KA1

9001KA2

9001KA3

Page 54

54

2008 SQUARE D REF GUIDE Flip 0514.qxd

CONTROL STATIONS

No. of
Units

1

2

3

Catalog Number
22mm
Medium
30mm
Duty
Heavy Duty

Description
Start

XALD103

9001KYK110

Stop

XALB114

9001KYK13

E-Stop Mushroom

XALK174

9001KYK14

Start-Stop

XALD211

9001KYK218
9001KYK24

Forward-Reverse

XALD221

Forward-Reverse-Stop

XALD311

9001KYK31

Open-Close-Stop

XALD341

9001KYK33

Up-Down-Stop

XALD321

9001KYK32

PENDANT CONTROL STATIONS
Description

Speed

Catalog Number
Pistol Grip
Hand Held

Up-Down

1

9001BW72Y

2

Start-Stop

1

9001BW75Y

Forward-Reverse

2

9001BW82Y

10/2/07

No. of
Units

9:45 AM
Page 55

55

How to select a limit switch
1. Type of Head/Operator?
 Lever Type
 Top Plunger
 One Way Horizontal Roller

 Lever Type with Arm
 Palm Operated
 One Way Vertical Roller

2. Lever Direction or Feature?
 CW
 Low Differential CW + CCW
 Adjustable Plunger
3. Enclosure Type?
 Standard Plug-In
 Foundry

 CCW
 Light Operating Torque CW + CCW

 Standard Non Plug-In
 Miniature

4. Contact Type?
 Reed
 Slow Break Before Make
5. Number of Contacts?
 1 NO
 2 NO

 Compact
 Mill

 Snap Action

 1 NC
 2 NC

6. Contact Function?
 Spring Return
 Neutral Position Maintained

 Side Plunger
 Top Roller Plunger
 Cat Whisker

 Side Roller
 Cross Top Plunger
 Wobble Stick

 Mushroom

 Standard Pretravel CW + CCW
 CW + CW

 Hazardous Location

 Slow Make and Break

 Flush

 Direct Opening (N/O)

 1 NO 1 NC
 2 NO 2 NC
 Neutral Position Spring Return
 Two Stage Spring Return

 Maintained

7. Enclosure Type Rating?
8. Maximum Current?
 Cable Type

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Page 56

56

9. Wiring Entry Type
 Conduit 1/2" or Metric

2008 SQUARE D REF GUIDE Flip 0514.qxd

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9:45 AM

Page 57

57

LIMIT SWITCHES
®

Osiswitch Selection
Type

IEC Style Miniature
Industrial Limit Switches

Compact
Industrial Limit Switches

Reference Prefix

XCMD

XCKP

Description

Modular miniature enclosed
switches, potted and pre-wired
with cable

Modular compact
enclosed switches

Enclosure Material

Metal

Plastic bodies, metal heads

Enclosure Rating

Type Rating: 1, 2, 4, 12, 13
IEC IP Rating:
IP66, IP67, IP68

Type Rating:
1, 2, 4, 6, 6P, 12, 13
IEC IP Rating: IP66/67

Approximate
Body Dimensions

1.18 x 1.93 x 63 in.
(30 x 15 x 18 mm)

1.22 x 2.56 x 1.18 in.
(31 x 65 x 30 mm)

Heads

Linear or Rotary

Linear or Rotary

Cabling

Pre-wired cable or M12
connector options available

Modular conduit options

Temperature Rating

-13ºF – +158ºF (-25ºC – +70ºC) Same

LIMIT SWITCHES (continued)

Osiswitch® Selection
Type

Compact Industrial Limit Switches

Reference Prefix

XCKT

XCKD

Description

Modular compact wide
body enclosed switches with
conduit entry on each side

Modular compact
enclosed switches

Plastic bodies, metal heads

Metal

Enclosure Rating

Type Rating:
1, 2, 4, 6, 12, 13
IEC IP Rating: IP66/67

Type Rating:
1, 2, 4, 6, 12, 13
IEC IP Rating: IP66/67

Approximate
Body Dimensions

2.28 x 2.01 x 1.18 in.
(58 x 51 x 30 mm)

1.22 x 2.56 x 1.18 in.
(31 x 65 x 30 mm)

Heads

Linear or Rotary

Linear or Rotary

Cabling

Modular conduit options

Modular conduit options

Temperature Rating

-13ºF – +158ºF (-25ºC – +70ºC) Same

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Page 58

58

Enclosure Material

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9:45 AM

Page 59

Amperes
Continuous
Current

Description

Heavy Duty Oiltight

59

LIMIT SWITCHES—600V
Max.
Volt

Enclosure

Type 4/12/13/6P

10
600
Type 4/12/6P/7/9
Heavy Duty Industrial

Type 4/12/13

20

Severe Duty Mill

Type 4/13

15

Basic Snap Switch

Open Snap Sw.

20

Severe Duty Mill

Type 4/12/13

LIMIT SWITCHES—600V (cont.)

Contact Configuration

Catalog Number

SPDT Form Z
DPDT Form ZZ
DPDT Form ZZ, Neut.

9007C54B2
9007C62B2
9007C68T10

SPDT Form Z

DPDT Form ZZ

SPDT Form Z

Type of Operator

Rotary Lever

9007C52B2
9007C54A2
9007C54L
9007C54D
9007CR53B2
9007AW12

Cat Whisker
Top Roller Plunger

9007AW16
L100WS2M1
9007AO2
9007TUB4

Straight Plunger

Rotary Lever

Rotary Lever

Common Lever

9007MA11

Operator Supplied

9007MA11
AA
Operator Supplied
9007B1

60

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9:45 AM

Page 60

Temperature Rating of Conductor (See Table 310.13.)
60°C (140°F)

Size
AWG or
kcmil

Types TW,
UF

75°C (167°F)

90°C (194°F)

60°C (140°F)

75°C (167°F)

Types RHW,
THHW, THW,
THWN, XHHW,
USE, ZW

Types TBS, SA,
SIS, FEP, FEPB,
MI, RHH, RHW-2,
THHN, THHW,
THW-2, THWN-2,
USE-2, XHH,
XHHW, XHHW-2,
ZW-2

Types TW,
UF

Types RHW,
THHW, THW,
THWN,
XHHW, USE

COPPER

ALUMINUM OR COPPER-C

14
18
25
30
40
55

–
–
–
20
25
30

–
–
–
20
30
40

6
4
3
2
1

55
70
85
95
110

65
85
100
115
130

75
95
110
130
150

40
55
65
75
85

50
65
75
90
100

1/0
2/0
3/0
4/0

125
145
165
195

150
175
200
230

170
195
225
260

100
115
130
150

120
135
155
180

250
300
350
400
500

215
240
260
280
320

255
285
310
335
380

290
320
350
380
430

170
190
210
225
260

205
230
250
270
310

600
700
750
800
900

355
385
400
410
435

420
460
475
490
520

475
520
535
555
585

285
310
320
330
355

340
375
385
395
425

Page 61

–
–
20
25
35
50

9:45 AM

–
–
20
25
30
40

10/2/07

18
16
14*
12*
10*
8

2008 SQUARE D REF GUIDE Flip 0514.qxd

Table 310.16 Allowable Ampacities of Insulated Conductors
Rated 0 Through 2000 Volts, 6 (140°F Through 194°F),
Not More Than Three Current-Carrying Conductors in Raceway
(Directly Buried), Based on Ambient Temperature of 30°C (86°F)

© Copyright NFPA

61

455

454

615

375

445

1250

495

590

665

405

485

1500

520

625

705

435

520

1750

545

650

735

455

545

2000

560

665

750

470

560

CORRECTION FACTORS
Ambient
Temp °C

21-25
26-30
31-35
36-40
41-45
46-50
51-55
56-60
61-70
71-80

For ambient temperatures other than 30°C (86°F), multiply the allowable
ampacities shown abov factor shown below.
1.08
1.00
0.91
0.82
0.71
0.58
0.41
–
–
–

1.05
1.00
0.94
0.88
0.82
0.75
0.67
0.58
0.33
–

1.04
1.00
0.96
0.91
0.87
0.82
0.76
0.71
0.58
0.41

1.08
1.00
0.91
0.82
0.71
0.58
0.41
–
–
–

1.05
1.00
0.94
0.88
0.82
0.75
0.67
0.58
0.33
–

*See 240.4(D)
National Electrical Code ® and NEC ® are registered trademarks of the
National Fire Protection Association, Quincy, MA.

2008 SQUARE D REF GUIDE Flip 0514.qxd

1000

10/2/07
9:45 AM
Page 62

© Copyright NFPA

62

Table 430.91 Motor Controller Enclosure Selection
For Outdoor Use
Provides a Degree of Protection Against the
Following EnvironmentalConditions

3

Enclosure Type Number*
3R 3S 3X 3RX 3SX 4

Incidental contact with the
enclosed equipment

X

X

X

X

X

X

X

Rain, snow, and sleet

X

X

X

X

X

X

X

Sleet**

–

–

X

–

–

X

–

Windblown dust

X

–

X

X

–

X

X
X

Hosedown

–

–

–

–

–

–

Corrosive agents

–

–

–

X

X

X

–

Temporary submersion

–

–

–

–

–

–

–

Prolonged submersion

–

–

–

–

–

–

–

For Indoor Use
Provides a Degree of Protection Against the
Following Environmental Conditions

Enclosure Type Number*
2
4 4X 5
6 6P

X

X

X

X

X

X

X

Falling dirt

X

X

X

X

X

X

X

Falling liquids and light splashing

–

X

X

X

X

X

X

Circulating dust, lint, fibers and flyings

–

–

X

X

–

X

X

Settling airborne dust, lint, fibers, and flyings

–

–

X

X

X

X

X
X

Hosedown and splashing water

–

–

X

X

–

X

Oil and coolant seepage

–

–

–

–

–

–

–

Oil or coolant spraying and splashing

–

–

–

–

–

–

–

Corrosive agents

–

–

–

X

–

–

X

Temporary submersion

–

–

–

–

–

X

X

Prolonged submersion

–

–

–

–

–

–

X

FPN: The term raintight is typically used in conjunction with Enclosure Types 3, 3S,
3SX, 3X, 4, 4X, 6, 6P. The term rainproof is typically used in conjunction with Enclosure
Type 3R, 3RX. The term watertight is typically used in conjunction with Enclosure
Types 4, 4X, 6, 6P. The term driptight is typically used in conjunction with Enclosure
Types 2, 5, 12, 12K, 13. The term dusttight is typically used in conjunction with
Enclosure Types 3, 3S, 3SX, 3X, 5, 12, 12K, 13.
©Copyright NFPA

63

Page 63

* Enclosure type number shall be marked on the motor controller enclosure.
** Mechanism shall be operable when ice covered.

9:45 AM

Incidental contact with the
enclosed equipment

10/2/07

1

2008 SQUARE D REF GUIDE Flip 0514.qxd

30.91 Motor Controller Enclosure Types.
Table 430.91 provides the basis for selecting enclosures for use in specific
locations other than hazardous (classified) locations. The enclosures are not
intended to protect against conditions such as condensation, icing, corrosion,
or contamination that may occur within the enclosure or enter via the conduit
or unsealed openings. These internal conditions shall require special
consideration by the installer and user.

The following values of full-load currents * are for motors running
at base speed.
Armature Voltage Rating
HP

90V

120V

180V

240V

1/4

4.0

3.1

2.0

1.6

1/3

5.2

4.1

2.6

2.0

1/2

6.8

5.4

3.4

2.7

3/4

9.6

7.6

4.8

3.8

1

12.2

4.7

*
500V

550V

6.1

13.2

8.3

6.6

2

17

10.8

8.5

3

25

16

12.2

5

40

27

20

7 1/2

58

29

13.6

12.2

10

76

38

18

16

15

55

27

24

20

72

34

31

25

89

43

38

30

106

51

46

40

140

67

61

50

173

83

75

60

206

99

90

75

255

123

111

100

341

164

148

125

425

205

185

150

506

246

222

200

675

330

294

10/2/07

9.5

1 1/2

64

Page 64

®

9:45 AM

* These are average direct-current quantities.
©2005, National Electric Code

2008 SQUARE D REF GUIDE Flip 0514.qxd

TABLE 430.247
FULL-LOAD CURRENT IN AMPERES,
DIRECT-CURRENT MOTORS

2008 SQUARE D REF GUIDE Flip 0514.qxd

TABLE 430.248
FULL-LOAD CURRENT IN AMPERES,
SINGLE-PHASE ALTERNATING-CURRENT MOTORS
The following values of full-load currents are for motors running at usual
speeds and motors with normal torque characteristics. Motors built for
especially low speeds or high torques may have higher full-load currents,
and multispeed motors will have full-load current varying with speed, in
which case the nameplate current ratings shall be used.
The voltages listed are rated motor voltages. The currents listed shall be
permitted for system voltage ranges of 110 to 120 and 220 to 240 volts.

HP

115V

200V

208V

230V

1/6

4.4

2.5

2.4

2.2

1/4

5.8

3.3

3.2

2.9

1/3

7.2

4.1

4.0

3.6

1/2

9.8

5.6

5.4

4.9

3/4

13.8

7.9

7.6

6.9

9.2

8.8

8

20

11.5

11

10

2

24

13.8

13.2

12

3

34

19.6

18.7

17

5

56

32.2

30.8

28

80

46

44

40

100

57.5

55

50

7 1/2
10

©2005, National Electric Code

9:45 AM

16

10/2/07

1
1 1/2

®

Page 65

65

The following values of full-load current are for motors running at speeds
usual for belted motors and motors with normal torque characteristics.
Motors built for especially low speeds or high torques may require more
running current, and multispeed motors will have full-load current varying
with speed, in which case the nameplate current rating shall be used.
Current in the common conductor of a 2-phase, 3-wire system will be 1.41
times the value given.
The voltages listed are rated motor voltages. The currents listed shall be
permitted for system voltage ranges of 110 to 120, 220 to 240, 440 to 480,
and 550 to 600 volts.

Induction Type Squirrel-Cage and Wound-Rotor Amperes
HP

115 Volts

230 Volts

460 Volts

575 Volts

1/2

4

2

1

.8

3 /4

4.8

2.4

1.2

1.0

1

6.4

3.2

1.6

1.3

1 1/2

9

4.5

2.3

1.8

2

11.8

5.9

3

2.4

3

8.3

4.2

3.3
5.3

2300 Volts

13.2

6.6

19

9

8

10

24

12

10

15

36

18

14

20

47

23

19

25

59

29

24

30

69

35

28

40

90

45

36

50

113

56

45

60

133

67

53

75

166

83

66

18

100

218

109

87

23

125

270

135

108

28

150

312

156

125

32

200

416

208

167

43

9:45 AM

14

Page 66

©2005, National Electric Code

10/2/07

5
7 1/2

2008 SQUARE D REF GUIDE Flip 0514.qxd

TABLE 430.249
FULL-LOAD CURRENT TWO-PHASE
ALTERNATING-CURRENT MOTORS (4-WIRE)

®

66

The following values of full-load current are typical for motors running at speeds
usual for belted motors and motors with normal torque characteristics.
Motors built for low speeds (1200 RPM or less) or high torques may require more
running current, and multispeed motors will have full-load current varying with speed.
In these cases the nameplate current rating shall be used.
The voltages listed are rated motor voltages. The currents listed shall be permitted
for system voltage ranges of 110 to 120, 220 to 240, 440 to 480, and 550 to 600 volts.
Induction Type
Squirrel-Cage and Wound-Rotor
Amperes
HP

115V 200V

208V 230V 460V 575V 2300V

230V

460V

575V

2300V

4.4
6.4
8.4
12.0
13.6

2.4 2.2
3.5 3.2
4.6 4.2
6.6 6.0
7.5 6.8
10.6 9.6
16.7 15.2
24.2 22
30.8 28
46.2 42
59.4 54
74.8 68
88
80
114 104
143 130
169 154
211 192
273 248
343 312
396 360
528 480

53
63
83
104
123
155
202
253
302
400

26
32
41
52
61
78
101
126
151
201

21
26
33
42
49
62
81
101
121
161

12
15
20
25
30
40

0.9
1.3
1.7
2.4
2.7
3.9
6.1
9
11
17
22
27
32
41
52
62
77
99
125
144
192
242
289
336
382
412
472

16
20
26
31
37
49
60
72
83
95
103
118

For 90 and 80 percent power factor, the above figures shall be multiplied
*by
1.1 and 1.25 respectively.
©2005, National Electric Code

®

67

Page 67

1.1
1.6
2.1
3.0
3.4
4.8
7.6
11
14
21
27
34
40
52
65
77
96
124
156
180
240
302
361
414
477
515
590

9:45 AM

2.5
3.7
4.8
6.9
7.8
11.0
17.5
25.3
32.2
48.3
62.1
78.2
92
120
150
177
221
285
359
414
552

10/2/07

1/2
3/4
1
1 1/2
2
3
5
7 1/2
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300
350
400
450
500

Synchronous Type
Unity Power Factor
Amperes

2008 SQUARE D REF GUIDE Flip 0514.qxd

TABLE 430.250
FULL-LOAD CURRENT* THREE-PHASE
ALTERNATING-CURRENT MOTORS

2008 SQUARE D REF GUIDE Flip 0514.qxd

NEMA SIZE STARTERS

NEMA
SIZE

Maximum Horsepower
60 HZ Polyphase Motors *
Full Voltage Starting
230V

460V
575V

1 1/2
3
7 1/2
10
25
40
75
150

1 1/2
3
7 1/2
15
30
50
100
200
300
450
800

2
5
10
25
50
100
200
400
600
900
1600

10/2/07

00
0
1
2
3
4
5
6
7
8
9

200V

*For non-plugging and non-jogging duty NEMA Standard ICS2-321.

9:45 AM
Page 68

68

2008 SQUARE D REF GUIDE Flip 0514.qxd

DRY TYPE TRANSFORMER DATA
SINGLE PHASE TRANSFORMERS
KVA
Rating

AMPERES
480V

1

8.33

4.17

2.08

600V

1.67

1.5

12.5

6.25

3.13

2.50

2

16.7

8.33

4.17

3.33

3

25.0

12.5

6.25

5.00

5

41.7

20.8

10.4

8.33

7.5

62.5

31.3

15.6

12.5

10

83.3

41.7

20.8

16.7

15

125

62.5

31.3

25.0

25

208

104

52.1

41.7

37.5

313

156

78.1

62.5

50

417

208

104

83.3

75

625

313

156

125

100

833

417

208

167

167

1392

696

348

278

250

2083

1042

521

417

333

2775

1388

694

555

500

4167

2083

1042

833

9:45 AM

240V

10/2/07

120V

Note: Voltages are line to line.

Page 69

69

2008 SQUARE D REF GUIDE Flip 0514.qxd

DRY TYPE TRANSFORMER DATA
THREE PHASE TRANSFORMERS
AMPERES

KVA
Rating

208V

240V

480V

600V

3

8.33

7.22

3.61

2.89

9

25.0

21.7

10.8

8.66

15

41.6

36.1

18.0

14.4

30

83.3

72.2

36.1

28.9

45

125

108

54.1

43.3

75

208

180

90.2

72.2

271

135

108

416

361

180

144

225

625

541

271

217

300

833

722

361

289

500

1388

1203

601

481

750

2082

1804

902

722

1000

2776

2406

1203

962

9:45 AM

312

150

10/2/07

112.5

Note: Voltages are line to line.

Page 70

70

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 71

0.5
2.5
14
H321N
4
FAL32015
SAG12
B3.30
FAL3600712M
LC1D09
LRD07
2.2
14
H321N
4
FAL32015
SAG12
B3.30
FAL3600712M
LC1D09
LRD07

0.75
3.7
14
H321N
6.25
FAL32015
SAG12
B4.85
FAL3600712M
LC1D09
LRD08
3.2
14
H321N
5.6
FAL32015
SAG12
B4.15
FAL3600712M
LC1D09
LRD08

200V
NEMA

IEC

230V

NEMA

IEC

HORSEPOWER
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
Contactor Catalog Number LC1
Overload Relay Catalog Number
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
IEC Contactor Catalog Number LC1
IEC Overload Relay Catalog Number

catalog number with
* Complete
control voltage code
** LC1D40 to LC1D95

*

*

*

*

NEMA
IEC

24VAC
V01
B7

120VAC
V02
G7

240 VAC
V03
U7

71

THREE PHASE MOTOR DATA

480VAC
V06
T7/T6**

600VAC
V07
X7/X6**

24VDC
–
BD

1
4.8
14
H321N
8
FAL32015
SAG12
B6.90
FAL3600712M
LC1D09
LRD10
4.2
14
H321N
8
FAL32015
SAG12
B6.25
FAL3600712M
LC1D09
LRD10

1.5
6.9
14
H321N
10
FAL32015
SAG12
B10.2
FAL3601513M
LC1D09
LRD12
6
14
H321N
10
FAL32015
SAG12
B9.10
FAL3601513M
LC1D09
LRD12

2
7.8
14
H321N
12
FAL32015
SBG2
B11.5
FAL3601513M
LC1D09
LRD14
6.8
14
H321N
10
FAL32015
SBG2
B10.2
FAL3601513M
LC1D09
LRD12

3
11
14
H321N
17.5
FAL32020
SBG2
B15.5
FAL3603015M
LC1D12
LRD16
9.6
14
H321N
15
FAL32020
SBG2
B14.
FAL3603015M
LC1D12
LRD16

5
17.5
12
H321N
25
FAL32035
SCG3
B28.0
FAL3603015M
LC1D18
LRD21
15.2
14
H321N
25
FAL32030
SCG3
B25.
FAL3603015M
LC1D18
LRD21

72

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 72

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 73

7.5
25.3
10
H322N
40
FAL32050
SCG3
B45.
FAL3605016M
LC1D25
LRD32
22
10
H321N
30
FAL32045
SCG3
B36.
FAL3605016M
LC1D25
LRD22

10
32.2
8
H322N
50
FAL32060
SDG1
B56.
FAL3605016M
LC1D32
LRD35
28
10
H322N
40
FAL32060
SDG1
B45.
FAL3605016M
LC1D32
LRD32

200V

NEMA

IEC

230V

NEMA

IEC

HORSEPOWER
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
Contactor Catalog Number LC1
Overload Relay Catalog Number
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
IEC Contactor Catalog Number LC1
IEC Overload Relay Catalog Number

catalog number with
* Complete
control voltage code
** LC1D40 to LC1D95

*

*

*

*

NEMA
IEC

24VAC
V01
B7

120VAC
V02
G7

240 VAC
V03
U7

73

THREE PHASE MOTOR DATA

480VAC
V06
T7/T6**

600VAC
V07
X7/X6**

24VDC
–
BD

15
48.3
6
H322N
60
FAL32090
SEG1
CC74.6
FAL3610018M
LC1D65
LRD3357
42
6
H322N
60
FAL32080
SDG1
B79.
FAL3610018M
LC1D50
LRD3357

20
62.1
4
H323N
90
FAL32100
SEG1
CC94.0
FAL3610018M
LC1D65
LRD3359
54
4
H323N
80
FAL32090
SEG1
CC87.7
FAL3610018M
LC1D65
LRD3359

25
78.2
3
H323N
100
KAL36110
SEG1
CC143.
FAL3615024M
LC1D80
LRD3363
68
4
H323N
100
FAL32100
SEG1
CC112
FAL3615024M
LC1D80
LRD3363

30
92
2
H324N
125
KAL36125
SFG1
CC143.
KAL3625025M
LC1D115
LRD4365
80
3
H323N
100
KAL36110
SEG1
CC156.
KAL3625025M
LC1D80
LRD3363

40
120
1/0
H324N
175
KAL36175
SFG1
CC180.
KAL3625029M
LC1D150
LRD4369
104
1
H324N
150
KAL36150
SFG1
CC167
KAL3625029M
LC1D115
LRD4365

74

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 74

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 75

0.5
1.1
14
H361
2
FAL34015
SAG12
B1.45
FAL3600311M
LC1D09
LRD06
.9
14
H361
1.8
FAL36015
SAG12
B1.30
FAL3600311M
LC1D09
LRD05

0.75
1.6
14
H361
3.2
FAL34015
SAG12
B2.40
FAL3600311M
LC1D09
LRD07
1.3
14
H361
2.5
FAL36015
SAG12
B1.88
FAL3600311M
LC1D09
LRD06

460V

NEMA

IEC

575V

NEMA

IEC

HORSEPOWER
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
Contactor Catalog Number LC1
Overload Relay Catalog Number
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
IEC Contactor Catalog Number LC1
IEC Overload Relay Catalog Number

catalog number with
* Complete
control voltage code
** LC1D40 to LC1D95

*

*

*

*

NEMA
IEC

24VAC
V01
B7

120VAC
V02
G7

240 VAC
V03
U7

75

THREE PHASE MOTOR DATA

480VAC
V06
T7/T6**

600VAC
V07
X7/X6**

24VDC
–
BD

1
2.1
14
H361
4
FAL34015
SAG12
B3.00
FAL3600311M
LC1D09
LRD07
1.7
14
H361
3.2
FAL36015
SAG12
B2.40
FAL3600311M
LC1D09
LRD07

1.5
3
14
H361
5.6
FAL34015
SAG12
B4.15
FAL3600712M
LC1D09
LRD08
2.4
14
H361
4
FAL36015
SAG12
B3.30
FAL3600712M
LC1D09
LRD07

2
3.4
14
H361
6.25
FAL34015
SAG12
B4.85
FAL3600712M
LC1D09
LRD08
2.7
14
H361
5
FAL36015
SAG12
B3.70
FAL3600712M
LC1D09
LRD08

3
4.8
14
H361
8
FAL34015
SBG2
B6.90
FAL3600712M
LC1D09
LRD10
3.9
14
H361
6.25
FAL36015
SBG2
B4.85
FAL3600712M
LC1D09
LRD08

5
7.6
14
H361
15
FAL34015
SBG2
B11.5
FAL3601513M
LC1D09
LRD12
6.1
14
H361
10
FAL36015
SBG2
B9.10
FAL3601513M
LC1D09
LRD12

76

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 76

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 77

7.5
11
14
H361
20
FAL34020
SCG3
B17.5
FAL3601513M
LC1D12
LRD16
9
14
H361
15
FAL36015
SCG3
B12.8
FAL3601513M
LC1D09
LRD14

10
14
14
H361
20
FAL34025
SCG3
B25.
FAL3603015M
LC1D18
LRD21
11
14
H361
20
FAL36020
SCG3
B17.5
FAL3603015M
LC1D12
LRD16

460V

NEMA

IEC

575V

NEMA

IEC

HORSEPOWER
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
Contactor Catalog Number LC1
Overload Relay Catalog Number
Full Load Current (Amps)
Minimum Wire Size (75 C) THW, THHN-THWN, XHHW (Size)
Fusible Switch, Heavy Duty NEMA 1 Enclosure
Time Delay Fuse Rating (Amps)
SQUARE D Thermal-Magnetic Circuit Breaker Catalog Number
Magnetic Starter, Class 8536 Type:
Melting Alloy Thermal Units
SQUARE D® MAG-GARD® Circuit Breaker Catalog Number
IEC Contactor Catalog Number LC1
IEC Overload Relay Catalog Number

catalog number with
* Complete
control voltage code
** LC1D40 to LC1D95

*

*

*

*

NEMA
IEC

24VAC
V01
B7

120VAC
V02
G7

240 VAC
V03
U7

77

THREE PHASE MOTOR DATA

480VAC
V06
T7/T6**

600VAC
V07
X7/X6**

24VDC
–
BD

15
21
10
H361
30
FAL34040
SDG1
B32.
FAL3603015M
LC1D25
LRD22
17
12
H361
25
FAL36035
SDG1
B25.
FAL3603015M
LC1D18
LRD21

20
27
10
H362
40
FAL34060
SDG1
B45.
FAL3605016M
LC1D32
LRD32
22
10
H361
30
FAL36045
SDG1
B36.
FAL3605016M
LC1D25
LRD22

25
34
8
H362
50
FAL34070
SDG1
B62.
FAL3605016M
LC1D40
LRD3355
27
10
H362
40
FAL36060
SDG1
B45.
FAL3605016M
LC1D32
LRD32

30
40
8
H362
60
FAL34080
SEG1
CC59.4
FAL3610018M
LC1D40
LRD3357
32
8
H362
50
FAL36060
SEG1
CC46.6
FAL3605016M
LC1D32
LRD35

40
52
6
H363
80
FAL34090
SEG1
CC81.5
FAL3610018M
LC1D50
LRD3359
41
6
H362
60
FAL36080
SEG1
CC64.3
FAL3610018M
LC1D50
LRD3357

78

2008 SQUARE D REF GUIDE Flip 0514.qxd

10/2/07

9:45 AM

Page 78

Ohms Law:
Ohms = Volts/Amperes
Amperes = Volts/Ohms
Volts = Amperes x Ohms

Power – A.C. Circuits:
Power Factor =

Watts
Volts x Amperes

Three-Phase Kilowatts =

Volts x Amperes x Power Factor x 1.732
1000

Three-Phase Volt-Amperes = Volts x Amperes x 1.732

746 x Horsepower
1.732 x Volts x Efficiency x Power Factor

Single-Phase Kilowatts =

Volts x Amperes x Power Factor
1000

Single-Phase Amperes =

746 x Horsepower
Volts x Efficiency x Power Factor

10/2/07

Three-Phase Amperes =

9:45 AM

Power – D.C. Circuits:
Watts = Volts x Amperes
Amperes =

Page 79

Watts
Volts

Horsepower =

2008 SQUARE D REF GUIDE Flip 0514.qxd

ELECTRICAL FORMULAS

Volts x Amperes x Efficiency
746

79

2008 SQUARE D REF GUIDE Flip 0514.qxd

ELECTRICAL FORMULAS
Motor Application Formulas:
Torque (lb-ft) =

Horsepower x 5250
RPM

Shaft Stress (pds per sq inch) =

HP x 321.000
RPM x Shaft Diam.3

For Pumps:
Horsepower =

GPM x Head in Feet x Specific Gravity
3960 x Efficiency of Pump

For Fans and Blowers:
Horsepower =

CFM x Pressure (pounds/sq ft)
33000 x Efficiency

Speed:
Synchronous RPM =

10/2/07

Percent Slip =

Hertz x 120
Poles

Synchronous RPM – Full Load RPM x 100
Synchronous RPM

9:45 AM
Page 80

80
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