The Circuit Breaker, cataloged under National Stock Number 5925-01-503-4543, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Daimler Truck North America Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-503-4543 |
| Primary Part Number | UND/122A10 00M |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Daimler Truck North America Llc |
| Status | ACTIVE |
| Operating Voltage Type and Rating Per Pole in Volts | 12.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 2 TERMINAL |
| Ultimate Trip Time Per Pole in Seconds | 3.500 NOMINAL SINGLE LOCATION |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 400.0 SINGLE LOCATION |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Pole Quantity | 1 |
| Maximum Continuous Load Current Rating Per Pole | 10.0 AMPERES DC SINGLE LOCATION |
| Trip Delay Time in Seconds Per Rated Continuous Current | 3.500 NOMINAL AT 400 PCT SINGLE LOCATION |
| Terminal Type and Quantity | 2 THREADED STUD |
| Trip Release Method | THERMAL SINGLE 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 |
|---|---|
| UND/122A10 00M | Daimler Truck North America Llc (USA) |
| Reference | Meaning |
|---|---|
| 122A10-00M | 3/9 Design control — primary reference Mcgraw Edison Co Usd Opns Sub of Cooper Industries |
NSN 5925-01-503-4543 is a Circuit Breaker, manufactured by Daimler Truck North America Llc, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-503-4543 has 1 manufacturer part number on file: UND/122A10 00M (Daimler Truck North America Llc).
Key specifications for UND/122A10 00M: Operating Voltage Type and Rating Per Pole in Volts: 12.0 DC SINGLE LOCATION; Mounting Facility Type and Quantity: 2 TERMINAL; Ultimate Trip Time Per Pole in Seconds: 3.500 NOMINAL SINGLE LOCATION; Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent: 400.0 SINGLE LOCATION. 10 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.