#M556291393 Breaker Assembly | Circuit Breakers

M556291393

Circuit Breaker

NSN 5925-01-497-0343

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
014970343

Product Technical Spec.

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
Item Name:
Breaker Assembly
Cage Code:
81349

Cross Referenced Parts

No other part numbers with same form, fit, and function found.

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Circuit Breakers
--------- Circuit Breakers
------------ P/N M556291393

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Last Updated: 08/17/2025