The Circuit Breaker, cataloged under National Stock Number 5925-01-017-0018, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-017-0018 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Operating Voltage Type and Rating Per Pole in Volts | 240.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 4 TERMINAL |
| Actuator Position Designation | AT EACH POLE |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Unpackaged Unit Weight | 12.500 OUNCES NOMINAL OZ |
| Center to Center Distance Between Terminals Parallel to Width | 1.000 INCHES NOMINAL IN |
| Body Style | MULTIPOLE-MULTIPLE ACTUATOR TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 ALL LOCATIONS |
| External Actuator Linkage Arrangement | ONE AND TWO LINKED |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 2.000 INCHES NOMINAL IN |
| Body Height | 2.312 INCHES NOMINAL IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 2 |
| Maximum Continuous Load Current Rating Per Pole | 125.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | INSTANTANEOUS AND TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 10000.0 AC ALL LOCATIONS |
| Body Length | 3.344 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 11.000 MINIMUM AT 200 PCT AND 29.000 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 2 TOGGLE |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Trip Release Ambient Temp Rating | 40.0 CELSIUS NOMINAL ALL LOCATIONS DEGC |
| Terminal Type and Quantity | 2 CLIP AND 2 COMPRESSION |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Boss Height | 0.219 INCHES NOMINAL IN |
| Trip Release Method | THERMAL-MAGNETIC ALL LOCATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| NB125 | 3/9 Design control — primary reference Challenger Electrical Equipment Corp |
NSN 5925-01-017-0018 is a Circuit Breaker, classified under FSC 5925, Circuit Breakers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5970-01-020-3413. Verify interchangeability with system specifications before substitution.
Key specifications for 5925-01-017-0018: Reset Method: MANUAL; Operating Voltage Type and Rating Per Pole in Volts: 240.0 AC ALL LOCATIONS; Mounting Facility Type and Quantity: 4 TERMINAL; Actuator Position Designation: AT EACH POLE. 29 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.