3C
Corrosion-Resistant
Dust-tight
Watertight
Weatherproof
NEMA 3, 4X, 12
NCB Series Circuit
Breakers and Enclosures
600VAC, 250VDC Heavy Duty
Applications:
Certifications and
Compliances:
3C
• NCB circuit breakers are for use in
conjunction with a variety of heating,
lighting and power circuits to provide
disconnect means and short circuit
protection.
• NEMA: 3, 4X and 12
• CSA Standard: C22.2 No. 94
• UL Standard: 489
Features:
Electrical Rating Ranges:
• Enclosures are made of Krydon®,
Eaton's Crouse-Hinds' high impact
strength fiberglass-reinforced polyester
material having excellent corrosion
resistance and stability to heat
• Unitized, strong and durable enclosure
construction provides longer service life
for equipment
• Enclosure has hinged access door
which opens 160° for easy wiring and
maintenance. Three screws for door
frame are hidden behind access door
• Access door may be padlocked to
prevent unauthorized access
• 100, 150, 225, 250 and 400 amp frames
Options:
Description
Suffix
• Insulated, groundable type
terminal block for grounded or
ungrounded neutral can be
supplied
• Hubs (see "Note on Hubs") – see
listing on page 677
• Grounding plate or bushing – see
listing on page 677
S618
Circuit breaker enclosure with built-in
Krydon material handle
Ordering Information
To order an enclosure complete with circuit breaker, insert the manufacturer’s symbol in the designated position of the catalog number.
Enclosures only can be ordered. Select from listings.
Circuit Breaker
Voltage
Poles
Rating
Amps
100A Frame (Non-Interchangeable Trip)
15
20
25
30
35
40
240 VAC/
2
50
250 VDC
60
70
80
90
100
15
20
25
30
35
40
50
60
70
80
90
100
480 VAC/
250 VDC
2
Enclosure
With Circuit
Breaker Cat. #
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
➀15EB 22
➀20EB 22
➀25EB 22
➀30EB 22
➀35EB 22
➀40EB 22
➀50EB 22
➀60EB 22
➀70EB 22
➀80EB 22
➀90EB 22
➀100EB 22
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
➀15EHB 24
➀20EHB 24
➀25EHB 24
➀30EHB 24
➀35EHB 24
➀40EHB 24
➀50EHB 24
➀60EHB 24
➀70EHB 24
➀80EHB 24
➀90EHB 24
➀100EHB 24
NCB1018F
➀Circuit Breakers:
NOTE ON HUBS: The following number and sizes of hubs (not mounted) are included when
circuit breakers are ordered complete. If enclosures only are ordered, hubs must be ordered
separately (see "Options")
Frames
600V
225/
250A
600V
Manufacturer
General Electric
Symbol
100/ 150A
240V 480V
TT
TEB
TED†
TED†
TFJ
Square D
DT
FAL†
FAL†
FAL†
KAL
WT
EB
EHB,
EHD
FB,
FDB
JB,
JDB
Cutler-Hammer
400A
600V
Circuit Breaker
Frame
Ampere
Rating
Number
Included
Hub
Size
LAL
EB, EHD*, FDB‡
EB, EHD*, FDB‡
JDB■
KDB§
15–50
60–100
110–225
250–400
2
2
2
2
11/4
2
21/2
3
†Specify voltage.
508
www.crouse-hinds.com
Without Circuit
Breaker Cat. #
US: 1-866-764-5454
CAN: 1-800-265-0502
*Formerly EHB.
‡Formerly FB.
§Formerly LB.
■Formerly JB.
Copyright© 2013 Eaton’s Crouse-Hinds Business
Corrosion-Resistant
Dust-tight
Watertight
Weatherproof
NEMA 3, 4X, 12
NCB Series Circuit
Breakers and Enclosures
600VAC, 250VDC Heavy Duty
Circuit Breaker
Voltage
Poles Rating
Circuit Breaker
Enclosure
With
Circuit
Breaker
Amps Cat. #
Without
Circuit
Breaker
Cat. #
3
3
3
240 VDC
480 VAC
600 VAC
15
20
25
30
35
40
50
70
80
90
100
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
➀15EB 32
➀20EB 32
➀25EB 32
➀30EB 32
➀35EB 32
➀40EB 32
➀50EB 32
➀70EB 32
➀80EB 32
➀90EB 32
➀100EB 32
15
20
25
30
35
40
50
70
80
90
100
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
➀15EHB 34
➀20EHB 34
➀25EHB 34
➀30EHB 34
➀35EHB 34
➀40EHB 34
➀50EHB 34
➀70EHB 34
➀80EHB 34
➀90EHB 34
➀100EHB 34
15
20
25
30
35
40
50
70
80
90
100
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
NCB1018F
➀15FB 36
➀20FB 36
➀25FB 36
➀30FB 36
➀35FB 36
➀40FB 36
➀50FB 36
➀70FB 36
➀80FB 36
➀90FB 36
➀100FB 36
NCB1018F
Enclosure
With
Circuit
Breaker
Amps Cat. #
Without
Circuit
Breaker
Cat. #
225/50A Frame (Non-Interchangeable Trip)§
110
NCB1024F ➀110JB
125
NCB1024F ➀125JB
600
150
NCB1024F ➀150JB
VAC/
2
175
NCB1024F ➀175JB
250
200
NCB1024F ➀200JB
VDC
225
NCB1024F ➀225JB
26
26
26
26
26
26
NCB1024F
NCB1024F
NCB1024F
NCB1024F
NCB1024F
NCB1024F
NCB1024F
➀110JB
➀125JB
➀150JB
➀175JB
➀200JB
➀225JB
36
36
36
36
36
36
NCB1024F
400A Frame (Interchangeable Trip)*
250
NCB1426F
300
NCB1426F
600 VAC/
2
350
NCB1426F
250 VDC
400
NCB1426F
➀250LB
➀300LB
➀350LB
➀400LB
26
26
26
26
NCB1426F
➀250LB
➀300LB
➀350LB
➀400LB
36
36
36
36
NCB1426F
3
3
600 VDC
600
VAC
110
125
150
175
200
225
250
300
350
400
NCB1426F
NCB1426F
NCB1426F
NCB1426F
3C
100/150A Frame (Non-Interchangeable Trip) – continued
15
NCB1018F ➀15FB 26
20
NCB1018F ➀20FB 26
25
NCB1018F ➀25FB 26
30
NCB1018F ➀30FB 26
35
NCB1018F ➀35FB 26
600 VAC/
40
NCB1018F ➀40FB 26
2‡
NCB1018F
250 VDC
50
NCB1018F ➀50FB 26
70
NCB1018F ➀70FB 26
80
NCB1018F ➀80FB 26
90
NCB1018F ➀90FB 26
100
NCB1018F ➀100FB 26
Voltage
Poles Rating
3C
➀Circuit Breakers:
NCB1018F
Manufacturer
General Electric
Symbol
Frames
100/
150A
240V 480V
TT
TEB
TED†
TED†
TFJ
Square D
DT
FAL†
FAL†
FAL†
KAL
EB
EHB,
EHD
FB,
FDB
JB,
JDB
Cutler-Hammer
WT
600V
225/
250A
600V
400A
600V
LAL
Note on Hubs: The following number and sizes of hubs (not mounted) are included when
circuit breakers are ordered complete. If enclosures only are ordered, hubs must be
ordered separately (see "Options").
NCB1018F
Circuit Breaker
Frame
Ampere
Rating
Number
Included
Hub
Size
EB, EHD✪, FDB▲
EB, EHD✪, FDB▲
JDB■
■Formerly JB
✪Formerly EHB
▲Formerly FB
15–50
60–100
110–225
2
2
2
11/4
2
21/2
†Specify voltage.
‡2-pole, 600 VAC/250 VDC for Square D circuit breakers only.
*For Square D circuit breakers only.
§Also available with interchangeable trip breakers. Specify on order.
www.crouse-hinds.com
US: 1-866-764-5454
CAN: 1-800-265-0502
Copyright© 2013 Eaton’s Crouse-Hinds Business
509
3C
Corrosion-Resistant
Dust-tight
Watertight
Weatherproof
NEMA 3, 4X, 12
NCB Series Circuit Breakers
and Enclosures
600VAC, 250VDC Heavy Duty
Dimensions
3C
In Inches*
Outside Dimensions
Cat. #
l
NCB1018
19 /32
NCB1024
NCB1426
25 /32
2713/32
Mounting Dimensions
Door Opening Dimensions
d
mw
ml
dl
11 /32
8 /32
7 /8
11 /32
1513/32
8 /32
923/32
7 /8
117/8
w
13
13
13
13
23
23
7
7
19 /8
16 /8
511/16
25 /8
271/4
22 /8
2311/16
511/16
911/16
3
*Dimensions are approximate, not to be used for construction purposes.
510
www.crouse-hinds.com
US: 1-866-764-5454
CAN: 1-800-265-0502
dw
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Copyright© 2013 Eaton’s Crouse-Hinds Business
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