NSN 5925-01-476-9718

Circuit Breaker

FSC: 5925     NIIN: 014769718

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National Stock Number 5925-01-476-9718 image National Stock Number 5925-01-476-9718 image National Stock Number 5925-01-476-9718 image

Product Characteristics

Shelf Life:
Body Style:
Multipole-multiple actuator type
Body Length:
2.530 inches
Body Width:
1.500 inches
Case Material:
Center To Center Distance Between Terminals Parallel To Length:
1.810 inches
Center To Center Distance Between Terminals Parallel To Width:
0.750 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length:
2.062 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width:
0.750 inches
Fragility Factor:
Moderately rugged
End Application:
E-nsn-isil; assembly, front draw; control panel assem
Boss Height:
0.140 inches
Mounting Surface To Terminal End Distance:
2.553 inches
Pole Quantity:
Arc Quenching Method:
Magnetic blowout
Mounting Facility Type And Quantity:
4 threaded hole
Storage Type:
General purpose warehouse
Special Handling Feature:
Thready Qty Per Inch (tpi):
Maximum Continuous Load Current Rating Per Pole:
15.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts:
240.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps:
1000.0 ac all locations
Circuit Protection Type:
Overcurrent all locations
Trip Release Method:
Magnetic all locations
Trip Release Characteristic:
Time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent:
125.0 all locations
Reset Method:
Main Contact Tripping Mechanism Type:
Trip free
Manual Actuator Type And Quantity:
2 toggle
Actuator Function:
Actuator Position Designation:
At each pole
External Actuator Linkage Arrangement:
One and two linked
Internal Trip Release Configuration:
Series trip all locations
Thread Size:
0.138 inches
Trip Delay Time In Seconds Per Rated Continuous Current:
10.000 at 200 pct all locations and 70.000 at 200 pct all locations
Inclosure Protection Type For Which Designed:
Dustproof and fungus proof
Frequency In Hertz:
60.0 all locations
Test Data Document:
81349-mil-prf-55629 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator:
Terminal Type And Quantity:
4 threaded stud
Specification Data:
81349-mil-prf-55629/3 government specification

Demand History (Solicitations)

Solicitation Qty End Date Purchase Request Small Business
SPE7M218T1039 41 12/22/2017 0072098771 0%
SPE7M217T1081 18 01/09/2017 0066957632 0%
SPE7M216T0984 15 12/17/2015 0061477932 100%

Part Numbers

  • M55629/3-444
  • MIL-PRF-55629/3

Shipping & Handling


No information in HMIRS. Hazardous material unknown.


No known electrostatic discharge.

Schedule B:

8536200040 - Automatic circuit breakers, for a voltage not exceeding 1,000 v, nesoi.

Professional Distribution

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ITAR registered supplier

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