The Circuit Breaker, cataloged under National Stock Number 5925-01-145-5328, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Department of the Army Hq United States Army Communications Research and Development Command. Government technical data includes 30 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-145-5328 |
| Primary Part Number | B4015451-2 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Department of the Army Hq United States Army Communications Research and Development Command |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SECOND LOCATION |
| Internal Trip Release Configuration | SERIES TRIP FIRST LOCATION |
| Internal Trip Release Configuration | SERIES TRIP THIRD LOCATION |
| Internal Trip Release Configuration | SHUNT TRIP FOURTH LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC SECOND LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC FIRST LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC THIRD LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 65.0 DC FOURTH LOCATION |
| Mounting Facility Type and Quantity | 8 THREADED HOLE(S) |
| Actuator Position Designation | AT EACH POLE |
| Frequency in Hertz | 60.0 THIRD LOCATION |
| Frequency in Hertz | 60.0 FIRST LOCATION |
| Frequency in Hertz | 60.0 SECOND LOCATION |
| 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 FIRST LOCATION |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 SECOND LOCATION |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 THIRD LOCATION |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 150.0 FOURTH LOCATION |
| 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 |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 3.015 INCHES MAXIMUM IN |
| Pole Quantity | 4 |
| Mounting Surface to Terminal End Distance | 2.491 INCHES MAXIMUM IN |
| Thread Pitch Diameters | +0.1177 TO 0.1214 INCHES IN |
| Maximum Continuous Load Current Rating Per Pole | 25.0 AMPERES AC AND 25.0 AMPERES DC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY FIRST LOCATION |
| Trip Release Characteristic | TIME DELAY THIRD LOCATION |
| 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 |
|---|---|
| B4015451-2 PRIMARY | Department of the Army Hq United States Army Communications Research and Development Command (USA) |
| Reference | Meaning |
|---|---|
| APL1112-8918-2 | 5/2 Secondary reference U.S. Government activity |
| APL113-8918-2 | 5/9 Secondary reference U.S. Government activity |
| APL1113-ER6864 | 5/9 Secondary reference U.S. Government activity |
NSN 5925-01-145-5328 is a Circuit Breaker, manufactured by Department of the Army Hq United States Army Communications Research and Development Command, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-145-5328 has 1 manufacturer part number on file: B4015451-2 (Department of the Army Hq United States Army Communications Research and Development Command).
Key specifications for B4015451-2: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SECOND LOCATION; Internal Trip Release Configuration: SERIES TRIP FIRST LOCATION; Internal Trip Release Configuration: SERIES TRIP THIRD LOCATION. 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.