The Circuit Breaker, cataloged under National Stock Number 5925-01-178-7540, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Thales Sa. Government technical data includes 30 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-178-7540 |
| Primary Part Number | 91525114 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Thales Sa |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 480.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 8 THREADED HOLE(S) |
| Actuator Position Designation | AT EACH POLE |
| Ultimate Trip Time Per Pole in Seconds | 8.000 MINIMUM AND 60.000 MAXIMUM ALL LOCATIONS |
| Frequency in Hertz | 50.0 OR 60.0 ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Width | 0.750 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, TWO, THREE, AND FOUR LINKED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.060 INCHES NOMINAL IN |
| Thread Pitch in Millimeters | 0.50 |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 3.000 INCHES MAXIMUM IN |
| Trip Release Duty Cycle | CONTINUOUS ALL LOCATIONS |
| Pole Quantity | 4 |
| Mounting Surface to Terminal End Distance | 2.755 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 15.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 5000.0 AC ALL LOCATIONS |
| Nominal Thread Size | 3.0 MILLIMETERS MM |
| Body Length | 2.490 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 8.000 MINIMUM AT 125 PCT AND 60.000 MAXIMUM AT 125 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 4 TOGGLE |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 0.750 INCHES NOMINAL IN |
| Inclosure Protection Type for Which Designed | DUSTPROOF |
| Test Data Document | 81541-2002 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", "NOMINAL", ETC.). |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| 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 |
|---|---|
| 91525114 | Thales Sa (FRA) |
| 77077460 | Nokia Networks France (FRA) |
| Reference | Meaning |
|---|---|
| 205-1111-25929-4 | 5/2 Secondary reference U.S. Government activity |
| 205-1111-1-65-5A-153AMO | 3/2 Design control — primary reference U.S. Government activity |
| 77077460 | 5/9 Secondary reference Alcatel Telspace |
NSN 5925-01-178-7540 is a Circuit Breaker, manufactured by Thales Sa, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-178-7540 has 2 manufacturer part numbers on file: 91525114 (Thales Sa), 77077460 (Nokia Networks France).
Key specifications for 91525114: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 480.0 AC ALL LOCATIONS; Mounting Facility Type and Quantity: 8 THREADED HOLE(S). 30 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.