Model: 1255C72G28

Circuit Breaker

Properties:

Body Style
Multipole-single actuator type
Overall Height
9.562 inches
Body Length
13.093 inches
Body Width
8.250 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
9.593 inches
Center To Center Distance Between Terminals Parallel To Width
2.750 inches
Unthreaded Mounting Hole Diameter
0.312 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
9.531 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
2.750 inches
Fragility Factor
Moderately rugged
Boss Height
0.500 inches
Pole Quantity
3
Arc Quenching Method
Air
Mounting Facility Type And Quantity
4 unthreaded hole
Storage Type
General purpose warehouse
Features Provided
Adjustable trip release
Maximum Continuous Load Current Rating Per Pole
400.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts
600.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
25000.0 ac all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Magnetic all locations
Trip Release Characteristic
Instantaneous all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
150.0 all locations
Reset Method
Manual
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
1 toggle
Actuator Function
Trip-reset
Actuator Position Designation
At pole one
Adjustable Trip Setting Current Range Per Pole In Amps
+2000.0/+4000.0 ac all locations
Internal Trip Release Configuration
Series trip all locations
Inclosure Protection Type For Which Designed
Dustproof
Frequency In Hertz
60.0 all locations
Terminal Type And Quantity
6 threaded stud
NSN
5925-00-854-9189
Part Number
1255C72G28
Description
Circuit Breaker
CAGE
89946

A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller.

Part 1255C72G28 NSN 5925-00-854-9189

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00136
FIIG:
A030A0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
12.0 X 17.0 X 6.3
Paclk Weight:
17.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
40
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536200040
  • SITC: 77252
  • End Use: Electric apparatus
  • NAICS: 335313
  • USDA: 1

Freight Class: Automatic circuit breakers, for a voltage not exceeding 1,000 v, nesoi

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