The Tripper,circuit Breaker, cataloged under National Stock Number 5925-00-258-5049, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-258-5049 |
| Primary Part Number | 45185PC31 |
| Item Name | Tripper,circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 600.0 AC AND 250.0 DC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 4 TERMINAL |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Body Style | RECTANGULAR DIMENSIONAL ENVELOPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 124.0 ALL LOCATIONS |
| Adjustable Trip Setting Current Range Per Pole in Amps | +350.0 TO 1000.0 AC AND +350.0 TO 1000.0 DC ALL LOCATIONS |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Pole Quantity | 2 |
| Maximum Continuous Load Current Rating Per Pole | 100.0 AMPERES AC AND 100.0 AMPERES DC ALL LOCATIONS |
| Features Provided | ADJUSTABLE TRIP RELEASE |
| Trip Release Characteristic | INSTANTANEOUS AND TIME DELAY ALL LOCATIONS |
| Trip Delay Time in Seconds Per Rated Continuous Current | 92.000 MINIMUM AT 200 PCT AND 400.000 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Trip Release Ambient Temp Rating | 25.0 CELSIUS NOMINAL ALL LOCATIONS DEGC |
| Terminal Type and Quantity | 4 COMPRESSION |
| 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 |
NSN 5925-00-258-5049 is a Tripper,circuit Breaker, manufactured by Westinghouse Electric Corp, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-00-258-5049 has 2 manufacturer part numbers on file: 45185PC31 (Westinghouse Electric Corp), S999189 (Westinghouse Electric Corp).
Key specifications for 45185PC31: Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 600.0 AC AND 250.0 DC ALL LOCATIONS; Mounting Facility Type and Quantity: 4 TERMINAL; Overall Height: 3.562 INCHES NOMINAL IN. 16 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.