Cutler Hammer, Div of Eaton Corp Circuit Breakers, Supplementary Protectors General Product Line Information

August 2006

Circuit Breakers & Supplementary Protectors
15 – 2500 Amperes for UL, CSA & IEC Applications

Product Line Overview

45-43

Product Line Description

Cutler-Hammer Molded Case Circuit
Breakers by Eaton Corporation are
designed to provide circuit protection
for low voltage distribution systems.
They are described by NEMA as, “. . .
a device for closing and interrupting
a circuit between separable contacts
under both normal and abnormal con­ditions,” and furthermore as, “. . . a
breaker assembled as an integral unit
in a supporting and enclosing housing
of insulating material.” The National
Electrical Code (NEC) describes
them as, “A device designed to open
and close a circuit by non-automatic
means, and to open the circuit auto­matically on a predetermined overload
of current, without injury to itself when
properly applied within its rating.”

So designed, Cutler-Hammer circuit
breakers protect conductors against
overloads and conductors and con­nected apparatus, such as motors and
motor starters, against short circuits.

In low voltage distribution systems,
there are many varied applications
of molded case circuit breakers. Eaton
offers the most comprehensive family
of molded case circuit breakers in
the industry.

This section of circuit breakers includes:

■ Thermal-Magnetic Trip Breakers.

■ Electronic rms Trip Breakers.

■ Molded Case Switches.

■ Motor Circuit Protectors.

■ Current Limiting Breakers.

■ Special Application Breakers.

Modified Breakers

Cutler-Hammer breakers can be ordered
with internal accessories installed.
These modified breakers will be subject
to an addition charge.

Modified Breakers List Adder

Special Calibration

Special non-UL-listed calibrations
are available for certain ambient
temperatures other than 40°C and for
frequencies other than 50/60 Hz or dc.
Reduced interrupting ratings will apply
for 400 Hz applications.

Suffix H01 400 Hz 20% Adder

50°C Calibration

Add suffix V to Catalog Number for
complete breaker, listed above, when
ordering listed ampere ratings for
breakers to be used in 50°C ambients.
(No price adder.)

Moisture-Fungus Treatment

All circuit breaker cases are molded
from glass-polyester which does not
support the growth of fungus. Any parts
which are susceptible to the growth of
fungus will require special treatment.

Suffix J01 Fungus Treated + 20% Adder

Freeze-Tested Circuit Breakers

The circuit breakers may be ordered
with freeze testing. This option uses
special lubrication and mechanical
operation is verified at -40°C.

Suffix F01 Freeze Tested 20% Adder

Marine Applications

F- to R-Framed circuit breakers can be
supplied to meet the following marine
specifications:

■ U.S. Coast Guard CFR 46 ABS —

American Bureau of Shipping
IEEE 45.

These specifications generally require
molded case circuit breakers to be
supplied with special nameplating, and
plug-in adapter kits. When plug-in
adapter kits are used, no terminals need
be supplied.

Circuit breakers can also be supplied
to meet UL 489 Supplement SA
(Marine Use) and UL 489 Supplement
SB (Naval Use).

UL 489 Supplement SA applies to
vessels over 65 feet (19.8 m) in length.
Requirements include 40°C ambient
calibration, special labeling, and no use
of aluminum conductors or terminals.
(No 50ºC available.)

Suffix H08 “Marine” 10% Adder

UL 489 Supplement SB requires 40°C
ambient calibration, vibration testings,
special nameplating and no use of
aluminum conductors or terminals.
(No 50ºC available.)

Suffix H09 “Naval” 10% Adder

Standards and Certifications

Molded case circuit breakers are
designed to conform with the follow­ing standards:

■ Underwriters Laboratories Inc.,

Standard UL 489, Molded Case
Circuit Breakers and Circuit Breaker
Enclosures.

■ National Electrical Manufacturers

Association (NEMA) Standards
Publication No. AB1-1993, Molded
Case Circuit Breakers.

■ Australian Standard AS 2184,

Molded Case Circuit Breakers.

■ British Standards Institution Standard

BS 4752: Part 1, Switchgear and
Control Gear Part 1: Circuit Breakers.

■ Canadian Standards Association

(CSA) Standard C22.2 No. 5, Service
Entrance and Branch Circuit Breakers.

■ International Electrotechnical

Commission Recommendations
IEC 60947-2, Circuit Breakers.

■ Japanese T-Mark Standard Molded

Case Circuit Breakers.

■ South African Bureau of Standards,

Standard SABS 156, Standard
Specification for Molded Case
Circuit Breakers.

■ Swiss Electro-Technical Association

Standard SEV 157-1, Safety Regula­tions for Circuit Breakers.

■ Union Technique de l’Electricite

Standard NF C 63-120, Low Voltage
Switchgear and Control Gear Circuit
Breaker Requirements.

■ Verband Deutscher Elektrotechniker

(Association of German Electrical
Engineers) Standard VDE 0660, Low
Voltage Switchgear and Control
Gear, Circuit Breakers.

Conformance with these standards
satisfies most local and international
codes, assuming user acceptability
and simplified application.

Molded case circuit breakers equal or
exceed Federal Specification Classifi­cation W-C-375b requirements for the
particular class associated with the
circuit breaker frame being considered.

Open breakers do not have service
entrance ratings. Service entrance
rating is part of the enclosure.

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CA08102001E For more information visit: www.EatonElectrical.com

45-44

45

Circuit Breakers & Supplementary Protectors
15 – 2500 Amperes for UL, CSA & IEC Applications

Product Line Overview

Quick Reference

Table 45-75. Industrial Circuit Breakers

Circuit
Breaker
Type

Continuous
Ampere
Rating
at 40°C

No.

Volts Type

Poles

ac dc ac (kV) dc (kV)

of
Trip

G-Frame

GHB
GHB
GHB
GHB
HGHB
GHQ

GD
GD

GHC
GHC
GHC
GHC
HGHC

15 – 100
15 – 100
15 – 100
15 – 100
15 – 30
15 – 20

15 – 50
15 – 10023

15 – 100
15 – 100
15 – 100
15 – 100
15 – 30

1
2, 3
1
2, 3
1
1

1
2, 3
1
2, 3
1

120
240
277
480Y/277
277
277

480
480

120
240
277
480Y/277
277

125
125/250
125
125/250
125
—

125/250
250

125
125/250
125
125/250
125

N.I.T.U. 11a

N.I.T.U. 13b

N.I.T.U. 12c, 13a

F-Frame

EDB
EDS

ED
EDH
EDC

EHD
EHD

FDB
FDB

FD
FD
FD
FDE

HFD
HFD
HFD
HFDE

FDC
FDC
FDCE









15 – 225
100 – 225

15 – 225
100 – 225
100 – 225

15 – 100
15 – 10012, 3

15 – 150
15 – 150

15 – 150
15 – 225
15 – 225
15 – 225

15 – 150
15 – 225
15 – 225
15 – 225



15 – 225



15 – 225



15 – 225

N.I.T.U. is non-interchangeable trip unit and I.T.U. is interchangeable trip unit.
2-pole circuit breaker, or two poles of 3-pole circuit breaker at 250 Vdc.
Not defined in W-C-375b.
Current limiting.

2, 3
2, 3

2, 3
2, 3
2, 3

2, 3
4

1
2, 3
4
3

1
2,3
4
3

2, 3
4
3

240
240

240
240
240

277
480

600
600

277
600
600
600

277
600
600
600

600
600
600

125
125

125
125
125

125
250

250
250

125
250
250
—

125
250
250
—

250
250
—

N.I.T.U. —

N.I.T.U. 12b

N.I.T.U. 13a

N.I.T.U. 18a

N.I.T.U.

N.I.T.

N.I.T.U.

N.I.T.

N.I.T.U.

N.I.T.

Federal
Specification



W-C-375b

10b, 11b,
12b, 14b,
15b
12c, 13a, 13b

13b

13b
12c, 13a
13b

—

14b
1

13b



13a
22a



—

13a
22a



—

24a



—

August 2006

UL Listed Interrupting Ratings (rms Symmetrical Amperes) Page

120 120/240 240 277 480 600 125 250 125/250

65
—
—
—

65

65

———

65
—
—
—

65

———

—
—
—

———

———

—
—
—
—

—
—
—
—

—
—
—

—
—
—
—
—
—

—

—
—
—
—
—

—

—
—
—

—

—

—
—
—
—

—
—
—
—

—
—
—

—

—

—

65

—

—

14

—

14

—

25

—

14

65
65——

—

—

65

—
14

—

14

—

25

—

22
42——————1010————

65

—

100

—

200

—

—
1814—— 14——10——10

18
18——

—

35

65

—

65

—

65

—

—

65

100

—

100

—

100

200

—

200

—

200

—

—

—

—

—

—

14

—

—

—

—

—

14
22——

—

—

—

—

—

—

14

—

—

—

—

—

—

—

—

—

14
141414——1010——

—

—

35

18

35

18

35

18

—

—

65

25

65

25

65

25

100

35

100

35

100

35



14

—

—

—

14

—

—

—

14

—

—

—

—
——1010—

14

—

—

—

14

—

—

—

14

—

10

—

10

—

10

—

10

—

—

10

—

10

—

—

10

—

—

22

—

22

—

—

—

22

—

22

—

—

—
14
—
14
—
—

—
14
—
14
—

—
—
—

—
—

—
—
—
—

—
—
—
—

—
—
—

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For more information visit: www.EatonElectrical.com CA08102001E