Model: M55629/1-393

Circuit Breaker

Properties:

Body Length
2.530 inches
Body Width
Between 0.730 inches and 0.780 inches
Case Material
Metal
Center To Center Distance Between Terminals Parallel To Length
Between 1.600 inches and 1.960 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
Between 2.046 inches and 2.078 inches
Boss Height
0.140 inches
Mounting Surface To Terminal End Distance
2.553 inches
Pole Quantity
1
Mounting Facility Type And Quantity
2 threaded hole
Special Handling Feature
Magnetic
Thready Qty Per Inch (tpi)
28
Maximum Continuous Load Current Rating Per Pole
25.0 amperes dc single location
Operating Voltage Type And Rating Per Pole In Volts
50.0 dc single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
2000.0 dc single location
Circuit Protection Type
Overcurrent single location
Trip Release Method
Magnetic single location
Trip Release Characteristic
Time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
125.0 single location
Reset Method
Manual
Main Contact Tripping Mechanism Type
Trip free
Internal Trip Release Configuration
Series trip single location
Thread Size
0.132 inches
Trip Delay Time In Seconds Per Rated Continuous Current
2.500 at 200 pct single location and 20.000 at 200 pct single location
Part Name Assigned By Controlling Agency
Circuit breaker
Thread Series Designator
Unc
Terminal Type And Quantity
2 threaded stud
NSN
5925-01-497-0343
Part Number
M55629/1-393
Description
Circuit Breaker
CAGE
81349

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 M55629/1-393 NSN 5925-01-497-0343

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

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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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