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Engine Generator Circuit Breakers
Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standards and Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Catalog Number Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Breaker Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Generator Circuit Breakers CA01214001E—June 2011 www.eaton.com
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Engine Generator Circuit Breakers
Product Description
Eaton’s engine generator
molded case circuit breakers
are designed specifically for
application on diesel engine
powered standby generators
where high interrupting
circuit breakers are not
required. The JG through NG
breakers are equipped with a
special trip unit, that includes
standard thermal (overload)
protection and special low
magnetic pickup range (FG
includes a fixed thermalmagnetic pickup). The
standard thermal trip unit
provides overload protection
for conductors per the
National Electrical Code®. The
low magnetic pickup range is
approximately two to five
times the continuous rating
and provides closer low-level
short-circuit protection when
applied on generators that
have very low short-circuit
capacity. This combination
allows the user to customize
the breaker to the generator
output.
Standards and
Certifications
Technical Data and Specifications
Engine generator molded
case circuit breakers are
designed to conform with the
following standards:
UL 489 Interrupting Capacity Ratings
●
●
●
Underwriters Laboratories
Standard UL 489, Molded
Case Circuit Breakers and
Circuit Breaker Enclosures
File E7819
Canadian Standards
Association Standard
C22.2 No. 5, Service
Entrance and Branch Circuit
Breakers
International
Electrotechnical
Commission
Recommendations IEC
947-2, Circuit Breakers
Volts AC
(50/60 Hz)
Interrupting Capacity
(Symmetrical Amperes)
240
18,000
480
14,000
600
10,000
IEC 947-2 Interrupting Capacity Ratings
Volts AC
(50/60 Hz)
Interrupting Capacity
(Symmetrical Amperes)
Icu/Ics
220, 240
18,000/ 9,000
380, 415
14,000/ 7,000
660, 690
18,000/ 9,000
14,000/ 7,000
10,000/5,000
Conformance with these
standards satisfies most local
and international codes,
assuming user acceptability
and simplified application.
Application Description
Engine generator circuit
breakers are suitable for
reverse feed application.
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Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Catalog Number 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.
●
FG breakers include both
line and load side terminals
●
●
JG, KG, LG and NG
breakers with W catalog
number suffix do not
include any terminals
JG, KG, LG and NG
breakers without W catalog
number suffix include both
line and load terminals
●
●
Contact Eaton for
additional ratings and
internal/external accessories
Accessories shown for
F-Frame have a quick ship
availability
Circuit Breakers FG, JG, KG, LG and NG
FG 3 100 W A06
Frame
FG
Number of Poles
3 = Three-pole
Trip Amperes
015
020
025
030
035
040
045
050
060
070
080
090
100
125
150
175
200
225
JG
175
200
225
250
KG
300
350
400
LG
450
500
600
NG
700
800
900
1000
1200
Suffix
W
= Without terminals
Blank = Terminals included
Accessory
A06 = 1A–1B
A13 = 2A–2B
B06 = 1 Mk–1 Brk
C05 = 1A–1B/Mk Brk
S02 = 12–24 Vac
S06 = 48–127 Vac
S18 = 12–24 Vac
S22 = 48–127 Vac
N02 = 24 Vdc
U14 = 110–127 Vdc
Accessories shown are for common F-Frame only; other configurations are available. See catalog for other frame sizes.
Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Product Selection
The following table lists FG
through NG engine generator
breakers with the maximum
generator kVA and kW rating.
Engine generator breakers
are applied at 115% of the
generator full load current
rating (FLA). The maximum
kW rating is based on threephase generators at 80%
power factor.
Breakers shown below
include line and load
terminals.
Thermal-Magnetic
Engine Generator
Breaker
Magnetic
Pickup Range
Maximum Generator Rating 60 Hz
240 Vac
kVA
kW
480 Vac
kVA
kW
600 Vac
kVA
kW
Catalog
Number
Fixed
5
4
11
9
14
11
FG3015
Fixed
7
6
14
12
18
14
FG3020
Fixed
9
7
18
14
23
18
FG3025
Fixed
11
9
22
17
27
22
FG3030
Fixed
13
10
25
20
32
25
FG3035
Fixed
14
12
29
23
36
29
FG3040
Fixed
16
13
32
26
41
32
FG3045
Fixed
18
14
36
29
45
36
FG3050
Fixed
22
17
43
35
54
43
FG3060
Fixed
25
20
51
40
63
51
FG3070
Fixed
29
23
58
46
72
58
FG3080
Fixed
32
26
65
52
81
65
FG3090
Fixed
36
29
72
58
90
72
FG3100
Fixed
40
32
79
64
99
79
FG3110
Fixed
45
36
90
72
113
90
FG3125
Fixed
54
43
108
87
135
108
FG3150
Fixed
63
51
126
101
158
126
FG3175
Fixed
72
58
144
116
181
144
FG3200
Fixed
81
65
162
130
203
162
FG3225
350–700
63
51
126
101
158
126
JG3175
350–700
72
58
144
116
181
144
JG3200
350–700
81
65
162
130
203
162
JG3225
350–700
90
72
181
144
226
181
JG3250
500–1000
108
87
217
173
271
217
KG3300
500–1000
126
101
253
202
316
253
KG3350
1000–2000
144
116
289
231
361
289
KG3400
Notes
Breaker continuous current is based on 115% of the generator full load ampere rating.
Based on three-phase generators at 80% power factor.
FG, JG, KG include thermal-magnetic trip units; LG and NG include electronic trip units.
The following catalog numbers have center tap studs for dual voltage applications: JG3070CT, JG3100CT, JG3125CT, KG3175CT, LG3300CTW.
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Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Electronic
Engine Generator
Breaker
Magnetic
Pickup Range
Maximum Generator Rating 60 Hz
240 Vac
kVA
kW
480 Vac
kVA
kW
600 Vac
kVA
kW
Catalog
Number
500–2500
162
130
325
260
406
325
LG3450
500–2500
181
144
361
289
451
361
LG3500
500–2500
217
173
433
347
542
433
LG3600
500–2500
253
202
505
404
632
505
NG3700
500–2500
289
231
578
462
722
578
NG3800
1250–5000
325
260
650
520
812
650
NG3900
1250–5000
361
289
722
578
903
722
NG31000
1250–5000
433
347
867
693
1083
867
NG31200
Notes
Breaker continuous current is based on 115% of the generator full load ampere rating.
Based on three-phase generators at 80% power factor.
FG, JG, KG include thermal-magnetic trip units; LG and NG include electronic trip units.
Breaker includes line and load terminals.
The following catalog numbers have center tap studs for dual voltage applications: JG3070CT, JG3100CT, JG3125CT, KG3175CT, LG3300CTW.
Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Accessories Selection Guide and Ordering Information
Enclosures
Type 1 General Purpose
●
●
●
Type 12 Dustproof Surface
Mounting
Surface or flush mounting
15–1200 ampere range
600 Vac, 500 Vdc
●
●
Type 1 enclosed breakers
are designed for use in
commercial buildings,
apartment buildings and
other areas where a general
purpose enclosure is
applicable. The breaker is
front operable and is capable
of being padlocked in either
the ON or OFF position.
Ratings through 1200
amperes are listed with
Underwriters Laboratories as
approved for service entrance
application. Both surface and
flush mounted enclosures
are available.
●
No knockouts or other
openings
15–1200 ampere range
600 Vac, 500 Vdc
The Type 12 enclosure is
designed in line with
specifications for special
industry applications where
unusually severe conditions
involving oil, coolant, dust and
other foreign materials exist
in the operating atmosphere.
The handle padlocks in the
OFF position and the cover is
interlocked with the handle
mechanism to prevent
opening the cover with the
circuit breaker in the ON
position. Ratings through
1200 amperes are listed by
Underwriters Laboratories as
suitable for service entrance
application.
Type 3R Rainproof Surface
Mounting
Interchangeable hubs
(through 400 amperes)
15–1200 ampere range
600 Vac, 500 Vdc
●
●
●
This general purpose outdoor
service center employs a
circuit breaker inside a
weatherproof sheet steel
breaker enclosure to serve
as a main disconnect and
protective device for feeder
circuits. Ratings through
1200 amperes are listed by
Underwriters Laboratories as
suitable for service entrance
application.
Enclosure Selection Data
Breaker
Frame
Amperes
FG
15–225
JG
175–250
KG
300–400
LG
450–600
NG
700–1200
6
Enclosure
Type Class
A
B
C
D
E
Approx. Weight
Lbs (kg)
Conduit Sizes,
Inches
Catalog
Number
Type 1
23.25 (590.6)
8.41 (213.6)
6.28 (159.5)
18.75 (476.3)
1.20 (30.5)
15 (7)
0.25, 0.50, 0.75, 1, 1.25, 1.50, 2, 2.50 SFDN225
Type 3R
25.66 (651.8)
8.84 (224.7)
9.31 (236.5)
24.28 (616.7)
1.70 (43.2)
19 (9)
0.25, 0.50, 0.75, 1, 1.25, 1.50, 2, 2.50 RFDN225
Type 12
25.66 (651.8)
8.84 (224.7)
9.31 (236.5)
24.28 (616.7)
1.70 (43.2)
18 (8)
—
JFDN225
Type 1
34.70 (881.4)
10.92 (277.4)
7.20 (182.9)
30.00 (762.0)
1.88 (47.8)
31 (14)
0.25, 0.50, 2, 2.50, 3
SJDN250
Type 3R
37.50 (952.5)
11.56 (293.6)
10.22 (259.6)
35.77 (908.6)
1.94 (49.3)
40 (18)
0.25, 0.50, 2, 2.50, 3
RJDN250
Type 12
37.53 (953.3)
11.56 (293.6)
10.22 (259.6)
35.77 (908.6)
1.94 (49.3)
37 (17)
—
JJDN250
Type 1
38.81 (985.8)
11.06 (280.9)
10.94 (277.9)
34.00 (863.6)
2.28 (57.9)
53 (24)
0.25, 0.50, 0.75, 1.50, 2, 2.50, 3, 3.50 SKDN400
Type 3R
41.69 (1058.9)
11.75 (298.5)
14.06 (357.1)
39.90 (1013.5)
1.97 (50.0)
60 (27)
0.25, 0.50, 0.75, 2.50, 3, 3.50
RKDN400
Type 12
41.69 (1058.9)
11.75 (298.5)
14.06 (357.1)
39.90 (1013.5)
1.97 (50.0)
53 (24)
—
JKDN400
Type 1
45.88 (1165.4)
14.31 (363.5)
12.38 (314.5)
46.56 (1182.6)
1.91 (48.5)
81 (37)
0.25, 0.50, 0.75, 3, 3.50, 4
SLDN600
Type 3R
48.31 (1227.1)
14.91 (378.7)
15.50 (393.7)
46.56 (1182.6)
1.92 (48.8)
84 (38)
0.25, 0.50, 0.75, 3, 3.50, 4
RLDN600
Type 12
48.31 (1227.1)
14.91 (378.7)
15.50 (393.7)
46.56 (1182.6)
1.92 (48.8)
81 (37)
—
JLDN600
Type 1
61.22 (1555.0)
21.44 (544.6)
15.41 (391.4)
61.84 (1570.7)
1.97 (50.0)
178 (81)
—
SNDN1200
Type 3R
63.59 (1615.2)
22.00 (558.8)
17.63 (447.8)
61.84 (1570.7)
1.97 (50.0)
175 (79)
—
RNDN1200
Type 12
63.59 (1615.2)
22.00 (558.8)
17.63 (447.8)
61.84 (1570.7)
1.97 (50.0)
170 (77)
—
JNDN1200
Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Type 1 Surface Mounted
Type 3R Rainproof
E
B
E
C
Type 12, 12K Dustproof
E
C
C
ON
A
D
A
D
D
ON
OFF
OFF
A
B
B
Enclosures, continued
Neutral Kits, Insulated and Groundable
Max. Enclosure
Rating (Amperes)
Main Lug Number
Size Cu/Al
Ground Lug
Size Cu/Al
Catalog
Number
100
(1) 14–1/0
(1) 14–1/0
INK100
250
(1) 6–350 kcmil
(1) 4–300 kcmil
INK250
400
(1) 4–750 kcmil or
(2) 1/0–250 kcmil
(1) 4–300 kcmil
INK400
600
(2) 250–500 kcmil
(1) 4–300 kcmil
INK600
1200
(3) 1/0 to 750 kcmil or
(4) 1/0 to 750 kcmil
(1) 6–250 kcmil
INK1200
Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Options and Accessories
Internal Accessories
Standard Terminals
Auxiliary Switch
Breaker
Frame
Max. Amp
Rating
AWG Wire
Range
Metric Wire
Range mm2
Catalog
Number
FG
100
14–1/0
2.5–50
FG
150
4–4/0
25–95
JG
KG
250
4–350 kcmil
350
250–500 kcmil
25–185
120–240
3T100FB
Breaker
Frame
Factory
Mounted
1A-1B
Field Kit
Catalog Number
Factory
Mounted
2A-2B
Field Kit
Catalog Number
3TA225FD
FG
A06
A1X1PK
A13
A2X1RPK
TA250KB
JG
A06
A1X2PK
A13
A2X2PK
TA350K
KG
A06
A1X3PK
A13
A2X3PK
LG
A06
A1X4PK
A13
A2X4PK
NG
A06
A1X5PK
A13
A2X5PK
KG
400
3/0–250 kcmil (2)
95–120
3TA400K
LG
600
250–500 kcmil (2)
120–240
3TA603LDK
NG
700
1–500 kcmil (2)
50–300
TA700NB1
NG
1000
3/0–400 kcmil (3)
95–185
TA1000NB1
NG
1200
4/0–500 kcmil (4)
120–300
TA1200NB1
Breaker
Frame
Rating
Factory
Mounted
Field Kit
Catalog Number
FG
12–24 Vdc
S02
SNT1LP03K
JG
12–24 Vdc
S42
SNT2P04K
KG
12–24 Vdc
S42
SNT3P04K
3T100FB
LG
12–24 Vdc
S02
SNT4LP03K
12–24 Vdc
S02
SNT5LP03K
Optional Terminals
Breaker
Frame
Max. Amp
Rating
AWG Wire
Range
Z Suffix (Line and Catalog
Load Terminals) Number
FD, FG
100
14–1/0
LZ04
225
4–4/0
LZ05
3TA225FD
NG
Notes
Package of three terminals.
Other accessories are available. Same as standard frame breakers.
Field installation on the FG Frame is not UL listed.
JD, JG
250
4–350 kcmil
N/A
TA250KB
KD, KG
225
(1) 3–350 kcmil
Z01
TA300K
350
(1) 250–500 kcmil
Z02
TA350K
400
(2) 3/0–250 kcmil
Z04
3TA400K
400
(1) 4/0–600 kcmil
Z12
3TA401LDK
450
(2) 4–4/0
Z22
TA450LD
500
(2) 3/0–350
Z01
TA602LD
600
(2) 400–500 kcmil
Z04
3TA603LDK
700
(2) 1–500 kcmil
Z01
TA700NB1
1000
(3) 3/0–400 kcmil
Z02
TA1000NB1
1200
(4) 4/0–500 kcmil
Z04
TA1200NB1
1200
(3) 500–750 kcmil
Z03
TA1201NB1
LD, LG
ND, NG
8
Shunt Trip
Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Breaker Dimensions
FG-Frame, Three-Pole
Side View
Front View
On
Off
6.00
(152.4)
3.38
(85.7)
4.13
(104.9)
JG-Frame, Three-Pole
Front View
Front View Cutout
0.34 R
(8.7 R)
CL Handle
1.56
(39.7)
3.94
(100.0)
0.72
(18.2)
0.50 (12.7)
Diameter
3 Megger Holes
if Required
Side View
0.78
(19.8)
2.92
(74.2)
CL Breaker
0.19 R
(4.8) R
4.13
(104.8)
0.88
(22.2)
3.33
(84.5)
10.00
(254.0)
ON
OFF
2.75
(69.9)
3.50
(88.9)
1.38
(34.9)
1.75
(44.5)
4.06
(103.2)
Engine Generator Circuit Breakers CA01214001E—June 2011
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Engine Generator Circuit Breakers
Molded Case Circuit Breakers
KG-Frame, Two- and Three-Pole
Front View
Front Cover Cutout
0.34 R
(8.7 R)
C
L Handle
Side View
4.31
(109.6)
5.49
(139.4)
0.83 3.75
1.64
(21.0) (95.3) (41.7)
0.19 R
(4.8 R)
ON
1.31
(33.3)
2.63
(66.7)
2.39
(60.7)
4.78
(121.5)
1.25
(31.8)
10.13
(257.2)
OFF
LG-Frame, Two- and Three-Pole
Front Cover Cutout
Side View
Front View
3.81
(96.8)
3.44
(87.3)
1.33 2.29
(33.7) (58.2) 3.28
(83.3)
CL Breaker
1.72
(43.7)
CL Handle
0.25 (6.4) R
10.75
(273.1)
3.64
(92.5)
8.21
(208.6)
0.19 R 1.50
(4.8) R (38.1)
7.28
(184.9)
8.25
(209.6)
NG-Frame, Two- and Three-Pole
Front View
Front Cover Cutout
Side View
3.44
(87.3)
1.72
(43.6)
0.25 R
(6.4 R)
CL Handle
1.91
(48.4)
3.68
(93.2)
1.50
(38.1)
10
CLHandle
0.19 R
(4.8 R)
3.19
(80.9)
6.38
(161.9)
16.00
(406.4)
ON/I
OFF/O
5.50
(139.7)
8.25
(209.6)
Engine Generator Circuit Breakers CA01214001E—June 2011
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CA0_.fm Page 11 Thursday, June 2, 2011 11:28 AM
Engine Generator Circuit Breakers
Molded Case Circuit Breakers
Engine Generator Circuit Breakers CA01214001E—June 2011
www.eaton.com
11
CA_SupplementBack.fm Page 24 Thursday, June 2, 2011 11:27 AM
Eaton’s Electrical Sector is
a global leader in power
distribution, power quality,
control and automation, and
monitoring products. When
combined with Eaton’s full-scale
engineering services, these
products provide customerdriven PowerChain™ solutions
to serve the power system
needs of the data center,
industrial, institutional, public
sector, utility, commercial,
residential, IT, mission critical,
alternative energy and OEM
markets worldwide.
PowerChain solutions help
enterprises achieve sustainable
and competitive advantages
through proactive management
of the power system as a
strategic, integrated asset
throughout its life cycle,
resulting in enhanced safety,
greater reliability and energy
efficiency. For more information,
visit www.eaton.com/electrical.
Eaton Corporation
Electrical Sector
1111 Superior Ave.
Cleveland, OH 44114
United States
877-ETN-CARE (877-386-2273)
Eaton.com
©2011 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. CA01214001E / Z10660
June 2011
Eaton is a registered trademark
of Eaton Corporation.
All other trademarks are property
of their respective owners.
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