12-44
Molded
Case
Circuit
Breakers
70
-
400
Amperes
K-Frame
Cutler-Hammer
January
2001
Vol.
1,
Ref.
No.
[0510]
Types
DK and KDB
Thermal-Magnetic Circuit Breakers
with
Non-interchangeable Trip Units
Suitable
for
reverse feed application.
Table
12-74.
Types
DK and KDB
Thermal-Magnetic
Circuit Breakers
with
Non-interchangeable
Trip Units
Maximum
Continuous
Ampere
Rating
@40°C
240V
AC
Rated,
250V
DC
Complete
Circuit
Breaker
Without
Line
and
Load
Terminals
Catalog
Number
Price
U.S.
$
With
Line
Terminals
Only
Catalog
Number
Price
U.S.
$
With
Standard
Line
and
Load
Terminals
Only
Catalog
Number
Price
U.S.
$
600V
AC
Rated,
250V
DC
Complete
Circuit
Breaker
Without
Line
and
Load
Terminals
Catalog
Number
Price
U.S.
$
With
Standard
Line
and
Load
Terminals
Catalog
Number
Price
U.S.
$
2-Pole
100
125
150
175
200
225
250 .
300
350
400
_
_
DK2250W
DK2300W
DK2350W
DK2400W
_
1,935.
1,935.
1,935.
1,935.
DK2250Y
DK2300Y
DK2350Y
DK2400Y
1,975.
1,975.
1,975.
1,975.
DK2250
DK2300
DK2350
DK2400
2,020.
2,020.
2,020.
2,020.
KDB2100W
KDB2125W
KDB2150W
KDB2175W
KDB2200W
KDB2225W
KDB2250W
KDB2300W
KDB2350W
KDB2400W
2,355.
2,355.
2,355.
2,355.
2,355.
2,355.
2,355.
2,355.
2,355.
2,355.
KDB2100
KDB2125
KDB2150
KDB2175
KDB2200
KDB2225
KDB2250
KDB2300
KDB2350
KDB2400
2,435.
2,300.
2,300.
2,300.
2,300.
2,435.
2,300.
2,450.
2,450.
2,450.
3-Pole
100
125
150
175
200
225
250
300
350
400
DK3250W
DK3300W
DK3350W
DK3400W
_
2,310.
2,310.
2,310.
2,310.
DK3250Y
DK3300Y
DK3350Y
DK3400Y
_
2,375.
2,375.
2,375.
2,375.
_
DK3250
DK3300
DK3350
DK3400
_
2,430.
2,430.
2,430.
2,430.
KDB3100W
KDB3125W
KDB3150W
KDB3175W
KDB3200W
KDB3225W
KDB3250W
KDB3300W
KDB3350W
KDB3400W
2,830.
2,830.
2,830.
2,830.
2,830.
2,830.
2,830.
2,830.
2,830.
2,830.
KDB3100
KDB3125
KDB3150
KDB3175
KDB3200
KDB3225
KDB3250
KDB3300
KDB3350
KDB3400
2,980.
2,980.
2,980.
2,980.
2,980.
2,980.
2,980.
2,980.
2,980.
2,980.
Note:
Instruction
Leaflet/FRED
Number
29C104
Molded
Case
Switches
Molded
Case
Switches
are
used
as
compact switches
in
applications
requiring
high
current
switching
capabilities.
Molded
case
switches
are
constructed
of
circuit
breaker
Table
12-75.
Molded
Case
Switches
components
and are of the
high
instantaneous automatic
type.
Molded
case
switches
are
listed
in
accordance
with
Underwriters Laboratories
Standard
UL
1087.
Maximum
Continuous
Ampere
Rating
@40°C
240V
AC
Maximum,
250V
DC
Complete
Circuit
Breaker
with
Standard
Line
and
Load
Terminals
Catalog
Number
Price
U.S.
S
600
Vac
Maximum,
250V
DC
Complete
Circuit
Breaker
with
Standard
Line
and
Load
Terminals
Catalog
Number
Price
U.S.
$
600V
AC
Maximum,
250V
DC
Complete
Circuit
Breaker
with
Standard
Line
and
Load
Terminals.
Suitable
for
Reverse Feed
Use
Catalog
Number
Price
U.S.
$
2-Pole
400
DK2400K
1,910.
KD2400K
HKD2400K
2,310.
3,925.KDB2400K
HKDB2400K
2,310.
3,925.
3-Pole
400
DK3400K2,245.KD3400K
HKD3400K2,800.
4,750.KDB3400K
HKDB3400K2,800.
4,750.
4-Pole
400
KD4400K
HKD4400K
4,510.
7,670.KDB4400K
HKDB4400K
4,510.
7,670.
Note:
Molded
case
switches
may
open
above
4000
amperes.
Note:
Instruction
Leaflet/FRED
Number
29C104
Discount
Symbol.
CB-2
E:T*M
For
more information contact
Cutler-Hammer
at:
www.ch.cutler-hammer.coni/catalog
CAT.200.01.T.E
12
-
2
For more information contact Cutler-Hammer at: www.ch.cutler-hammer.com/catalog CAT.200.01.T.E
January 2001
12
Product Line Overview
Vol. 1, Ref. No. [0468]
Product Line Description
Cutler-Hammer Molded Case Circuit
Breakers are designed to provide circuit
protection for low voltage distribution
systems. They are described by NEMA
as, “. . . a device for closing and inter-
rupting 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 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 con-
nected 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.
Cutler-Hammer offers the most
comprehensive family of molded
case circuit breakers in the industry.
This family of circuit breakers includes:
Thermal Magnetic Trip Breakers
Electronic rms Trip Breakers
Molded Case Switches
Motor Circuit Protectors
Current Limiting Breakers
Special Application Breakers
World Breakers
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. Maximum
thermal calibration is limited to 135A
at 400 Hz.
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.
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.
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.
Marine Applications
F-Frame circuit breakers can be sup-
plied 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 50°C ambient calibration,
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 UL489 Supplement SA
(Marine Use) and UL489 Supplement
SB (Naval Use).
UL489 Supplement SA applies to vessels
over 65 feet in length. Requirements
include 40°C ambient calibration, spe-
cial labeling, and no use of aluminum
conductors or terminals.
UL 489 Supplement SB requires 50°C
ambient calibration, vibration testings,
special nameplating and no use of
aluminum conductors or terminals.
Standards and Certifications
Molded case circuit breakers are
designed to conform with the follow-
ing standards:
Underwriters Laboratories, Inc.,
Standard UL489, Molded Case
Circuit Breakers and Circuit Breaker
Enclosures
National Electrical Manufacturers
Association 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
Standard C22.2 No. 5, Service
Entrance and Branch Circuit Breakers
International Electrotechnical
Commission Recommendations
IEC 157-1, 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 Regula-
tions 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 Classifi-
cation W-C-375b requirements for the
particular class associated with the cir-
cuit breaker frame being considered.
Note: For further information, see Circuit
Breaker, CD-ROM SA.74A.01.T.E.
Suffix H01 400 Hz 20% Adder
Suffix J01 Fungus Treated $325. + 20% Adder
Suffix F01 Freeze Tested 20% Adder
Suffix H08 “Marine” 10% Adder
Suffix H09 “Naval” 10% Adder
12
-
4
For more information contact Cutler-Hammer at: www.ch.cutler-hammer.com/catalog CAT.200.01.T.E
January 2001
12
Product Line Overview
Vol. 1, Ref. No. [0470]
Table 12-1. Industrial Circuit Breakers (Continued)
N.I.T. is non-interchangeable trip unit and I.T. is interchangeable trip unit.
Two-pole circuit breaker, or two poles of three-pole circuit breaker at 250V DC.
Circuit
Breaker
Type
Cont.
Amp.
Rating
@ 40°C
No.
Poles
Volts Type
of
Trip
Federal
Spec.
W-C-375b
UL Listed Interrupting Ratings rms Symmetrical Amperes Page
Number
AC DC AC Ratings Volts DC
120 120/240 240 277 480 600 125 250 125/250
J-Frame
JDB
JD
HJD
JDC
70 – 250
70 – 250
70 – 250
70 – 250
2, 3
2, 3, 4
2, 3, 4
2, 3, 4
600
600
600
600
250
250
250
250
N.I.T.
I.T
I.T
I.T
22a
22a
22a
22a
65,000
65,000
100,000
200,000
35,000
35,000
65,000
100,000
18,000
18,000
25,000
35,000
10,000
10,000
22,000
22,000
12-34
12-33
12-33
12-33
K-Frame
DK 250 – 400 2, 3 240 250 N.I.T. 14b 65,000 10,000 12-44
KDB
KD
CKD
HKD
CHKD
KDC
100 – 400
100 – 400
100 – 400
100 – 400
100 – 400
100 – 400
2, 3
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4
600
600
600
600
600
600
250
250
250
250
250
250
N.I.T.
I.T
I.T
I.T
I.T
I.T
23a
23a
23a
23a
23a
23a
65,000
65,000
65,000
100,000
100,000
200,000
35,000
35,000
35,000
65,000
65,000
100,000
25,000
25,000
25,000
35,000
35,000
50,000
10,000
10,000
10,000
22,000
22,000
22,000
12-44
12-41, 12-42,
12-46, 12-47
12-45, 12-48,
12-49
12-41, 12-42,
12-46, 12-47
12-45, 12-48,
12-49
12-41, 12-42,
12-46, 12-47
L-Frame
LDB
LD
CLD
HLD
CHLD
LDC
CLDC
300 – 600
300 – 600
300 – 600
300 – 600
300 – 600
300 – 600
300 – 600
2, 3
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4
600
600
600
600
600
600
600
250
250
250
250
250
250
250
N.I.T.
I.T
I.T
I.T
I.T
I.T
I.T
23a
23a
23a
23a
23a
23a
23a
65,000
65,000
65,000
100,000
100,000
200,000
200,000
35,000
35,000
35,000
65,000
65,000
100,000
100,000
25,000
25,000
25,000
35,000
35,000
50,000
50,000
22,000
22,000
22,000
25,000
25,000
25,000
25,000
12-59
12-56, 12-57,
12-61
12-58, 12-64
12-56, 12-57,
12-61
12-58, 12-64
12-56, 12-57,
12-62
12-58, 12-65
M-Frame
MDL
CMDL
HMDL
CHMDL
300 – 800
300 – 800
300 – 800
300 – 800
2, 3
2, 3
2, 3
2, 3
600
600
600
600
250
250
250
250
I.T.
I.T.
I.T.
I.T.
23a
23a
23a
23a
65,000
65,000
100,000
100,000
50,000
50,000
65,000
65,000
25,000
25,000
35,000
35,000
22,000
22,000
25,000
25,000
12-71, 12-72
12-73
12-71, 12-72
12-73
N-Frame
ND
CND
HND
CHND
NDC
CNDC
600 – 1200
600 – 1200
600 – 1200
600 – 1200
600 – 1200
600 – 1200
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
600
600
600
600
600
600
N.I.T.
N.I.T.
N.I.T.
N.I.T.
N.I.T.
N.I.T.
23A
23A
23A
23A
23A
23A
65,000
65,000
100,000
100,000
200,000
200,000
50,000
50,000
65,000
65,000
100,000
100,000
25,000
25,000
35,000
35,000
50,000
50,000
12-79, 12-91
12-85, 12-93
12-81, 12-91
12-87, 12-93
12-83, 12-91
12-89, 12-93
Cutler-Hammer
January
2001
Vol.
1,
Ref.
No.
[0503]
Molded
Case Circuit Breakers
70
-
400
Amperes
K-Frame
12-37
Contents
Description
Page
Product
Description
.........
12-37
Technical Data
and
Specifications
....,...
12-37
Dimensions/Weights ....... 12-39
Product
Selection
..........
12-40
K-Frame
Product
Description
All
K-Frame
Circuit
Breakers
are
HACR
rated.
K-Frame
circuit
breakers
are
avail-
able
as
individual
components
(Frame,
Trip
Unit,
Terminals),
or
fac-
tory assembled complete breakers.
K-Frame
circuit
breakers
with
non-
interchangeable
trip
units
are
suitable
for
reverse feed use.
Typical
K-Frame Circuit Breaker
Technical Data
and
Specifications
Table 12-62.
NEMA/UL489/CSA
Interrupting Capacity Ratings
Circuit
Breaker
Type
DK
KDB
KD
HKD
KDC
CKD
CHKD
Number
of
Poles
2,3
2,3,4
2,3,4
2,3,4
2,3,4
3
3
Interrupting
Capacity
(Symmetrical
Amperes) (kA)
Volts
AC
(50/60Hz)
240
65
65
65
100
200
65
100
277
480
35
35
65
100
35
65
600
25
25
35
50
25
35
Volts
DC
250©:?
10
10
10
22
22
10
22
©
2-pole circuit breaker
or two
outside poles
of
3-pole circuit breaker.
®
Time constant
is 3
milliseconds
minimum
at 10 kA and 8
milliseconds
minimum
at 22 kA.
Table 12-63.
IEC157-1
(PI)
Interrupting
Capacity Ratings
Circuit
Breaker
Type
DK
KDB
KD
HKD
KDC
Number
of
Poles
2,3
2,3,4
2,3,4
2,3,4
2,3,4
Interrupting Capacity (Symmetrical
Amperes)
(kA)
Volts
AC
(50/60Hz)
240
65
65
65
100
200
380
40
40
65
100
415
40
40
65
100
440
| 500
600
Volts
DC
250
®i>
10
10
10
22
22
®
2-pole circuit breaker
or two
outside poles
of
3-pole circuit breaker.
©
Time constant
is 3
milliseconds minimum
at 10 kA and 8
milliseconds
minimum
at 22 kA.
-.->
<Tir'
**'
,i-i
«••••>
CAT.200.01.T.E
For
more information contact Cutler-Hammer
at:
www.ch.cutler-hammer.com/catalog
F.T.N
Cutler-Hammer
January
2001
Vol.
1,
Ref.
No.
[0505]
Molded
Case Circuit Breakers
70
-
400
Amperes
12-39
K-Frame
Dimensions/Weights
Table
12-65.
Dimensions
in
Inches (mm)
Number
of
Poles
2,3
4
Width
5.5
(140)
7.219(183)
Height
10.125(257)
10.125
(257)
Depth
4.063(103)
4.063(103)
Table
12-66.
Approximate Shipping
Weight,
Lbs. (Kg)
Breaker
Type
DK
KDB
KD
HKD
KDC
Complete
Breaker
|
Frame
Only
Trip
Unit
i!J
Number
of
Poles
2
10
(4.536)
10
(4.536)
10
(4.536)
10
(4.536)
10
(4.536)
3
11.5(5.216)
11.5(5.216)
11.5(5.216)
11.5(5.216)
11.5(5.216)
2
7.5
(3.402)
7.5
(3.402)
7.5
(3.402)
3
2
8.5
(3.856)
8.5
(3.856)
8.5
(3.856)
1.51.680)
1.5
(.680)
1.51.680)
3
1.51.680)
1.5
(.680)
1.51.680)
®
Weights
shown
are for
thermal magnetic
trip
units. 3-pole electronic
trip
units
weigh
2.5
Ibs.
(1.134kg)
7
h
CAT.200.01.T.E
For
more information contact
Cutler-Hammer
at:
www.ch.cutler-hammer.com/catalog
F.T'N
12-40
Molded Case Circuit Breakers
70
-
400
Amperes
Cutler-Hammer
K-Frame
January
2001
Vol.
1,
Ref.
No.
[0506]
Product Selection
This
information
is
presented
only
as an aid to
understanding
Catalog Numbers.
It is not to be
used
to
build
Catalog Numbers
for
circuit
breakers
or
trip
units.
Table
12-67.
Circuit
Breaker/Frame Catalog Numbering System
___
____ ____
_________
___ __
KD 3 400 F
J
Circuit Breaker/
Frame Ampere Rating
350
400
Suffix
C
=
Copper Terminals
E
= 50%
Protected Neutral
Pole
(4-Pole
Electronic Trip Circuit
Breaker
Only)
F =
Frame Only
K
=
High Magnetic
Molded
Case
Switch
V =
50°C
Calibration (Thermal-
Magnetic
Trip
Units
Only)
W
=
Without Terminals
X
=
Load Side Terminals Only
Y
=
Line Side Terminals Only
No
Suffix Number Indicates
Standard Load
and
Lineside
Terminals
Table
12-68.
Trip
Unit
Catalog Numbering System
KT
3 400 T
Trip
Unit
Type
KT
=
Thermal-Magnetic
KES
=
Electronic
I
Trip
Unit
Rating/
Plug
Ampere
Rating
070©
090®
100
125
150
175
200
225
250
300
350
400
I
Suffix
LS =
LSI
=
Electronic
Trip
Unit
Adjustable Short Time Delay
with
I2t
Short Delay Ramp
Electronic
Trip
Unit
Independently
Adjustable
Short
Time Pickup
and
Delay
LSG
=
Electronic Trip Unit
Adjustable
Short Time Pickup
with
I2t
Short Delay
and
Ground
Fault
Protection
LSIG
=
Electronic Trip Unit
Independently Adjustable Short
Time Pickup
and
Delay
and
Ground
Fault
Protection
V
=
50°C Calibration (Thermal-Magnetic
Trip Units Only)
E
= 50%
Protected Neutral Pole
(4-Pole
Electronic Trip
Unit
Only)
Terminals Only
T =
Trip
Unit
Only
®
Ampere rating available
with
electronic
trip
unit
only.
Table
12-69.
OPTIM Circuit Breaker/Frame Catalog Numbering System
Circuit
Breaker
Frame
Type
KD
HKD
KDC
CKD
CHKD
/
Number
of
Poles
3 = 3
Poles
KD 3 1
—^
T
'
Circuit Breaker/Fram
Ampere
Rating
125
250
400
2
e
5
T5 7 W
I
Lb
Trip Model
T5
-
Model
550
T10=
Model
1050
T
Trip Type
2
-LSI
6=
LSIG
7 =
LSIA
Suffix
W
-
Without
Terminals
f
""
-
\
E:T«N
For
more
information contact
Cutler-Hammer
at:
www.ch.cutler-hammer.com/catalog
CAT.200.01.T.E