Model: 1279C57G12

Circuit Breaker

Special Features:

Mounting hardware included

Properties:

Body Style
Multipole-single actuator type
Overall Height
11.469 inches
Body Length
12.000 inches
Body Width
9.000 inches
Case Material
Plastic
Switch Contact Arrangement
Double pole, single throw, normally open
Fragility Factor
Moderately rugged
Pole Quantity
3
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
2 clip
Storage Type
General purpose warehouse
Special Handling Feature
Magnetic
Maximum Continuous Load Current Rating Per Pole
175.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts
500.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
1500.0 ac all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Magnetic all locations
Auxiliary Trip Coil Voltage Type And Rating In Volts
120.0 dc all locations
Trip Release Characteristic
Time delay 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 two
External Actuator Linkage Arrangement
One, two, and three linked
Auxiliary Switch Function And Quantity
1 control
Internal Trip Release Configuration
Series trip w/remote trip feature all locations
Trip Release Duty Cycle
Intermittent all locations
Switch Location And Position Designation
Internal at pole one
Inclosure Protection Type For Which Designed
Fungus resistant and moisture resistant
Switch Terminal Type
Compression
Switch Current Rating And Type In Amps
15.0 ac
Switch Voltage Rating And Type In Volts
250.0 ac
Frequency In Hertz
60.0 all locations
Unpackaged Unit Weight
30.500 pounds
Terminal Type And Quantity
6 threaded stud
NSN
5925-01-153-0144
Part Number
1279C57G12
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 1279C57G12 NSN 5925-01-153-0144

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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
03
LVL_A:
E
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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