The Tripper,circuit Breaker, cataloged under National Stock Number 5925-00-852-7809, 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 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-852-7809 |
| Primary Part Number | 452D371G28 |
| Item Name | Tripper,circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Operating Voltage Type and Rating Per Pole in Volts | 500.0 AC AND 250.0 DC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) |
| Actuator Position Designation | AT POLE TWO |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Body Style | RECTANGULAR DIMENSIONAL ENVELOPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 150.0 ALL LOCATIONS |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 100.0 AMPERES AC AND 100.0 AMPERES DC ALL LOCATIONS |
| Trip Release Characteristic | INSTANTANEOUS AND TIME DELAY ALL LOCATIONS |
| Nominal Thread Size | 0.250 INCHES IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 120.000 MINIMUM AT 200 PCT AND 360.000 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Thread Quantity Per Inch | 20 |
| Actuator Function | TRIP-RESET |
| Trip Release Ambient Temp Rating | 50.0 CELSIUS NOMINAL ALL LOCATIONS DEGC |
| Terminal Type and Quantity | 6 COMPRESSION |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 452D371G28 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 452D371G28 | 3/2 Design control — primary reference U.S. Government activity |
| S-452D371G28 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5925-00-852-7809 is a Tripper,circuit Breaker, manufactured by Westinghouse Electric Corp, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-00-852-7809 has 1 manufacturer part number on file: 452D371G28 (Westinghouse Electric Corp).
Key specifications for 452D371G28: Operating Voltage Type and Rating Per Pole in Volts: 500.0 AC AND 250.0 DC ALL LOCATIONS; Mounting Facility Type and Quantity: 4 THREADED STUD(S); Overall Height: 8.875 INCHES NOMINAL IN; Actuator Position Designation: AT POLE TWO. 19 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.