The Circuit Breaker, cataloged under National Stock Number 5925-01-155-9582, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Klockner-Moeller Corp. Government technical data includes 27 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5925-01-155-9582 |
| Primary Part Number | NZM6B - 63/ZM6A - 50 - 500NA FOR |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Klockner-Moeller Corp |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SHUNT TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 600.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 6 THREADED HOLE(S) |
| Actuator Position Designation | AT POLE TWO |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | RECTANGULAR DIMENSIONAL ENVELOPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 ALL LOCATIONS |
| Adjustable Trip Setting Current Range Per Pole in Amps | +400.0 TO 800.0 AC ALL LOCATIONS |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 50.0 AMPERES AC ALL LOCATIONS |
| Features Provided | ADJUSTABLE TRIP RELEASE |
| Trip Release Characteristic | INSTANTANEOUS ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 AC ALL LOCATIONS |
| Nominal Thread Size | 0.375 MILLIMETERS MM |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Inclosure Protection Type for Which Designed | CORROSION RESISTANT AND DUSTTIGHT |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Trip Release Ambient Temp Rating | 25.0 CELSIUS NOMINAL ALL LOCATIONS DEGC |
| Terminal Type and Quantity | 6 SCREW |
| Special Handling Feature | MAGNETIC |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| 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 |
|---|---|
| NZM6B - 63/ZM6A - 50 - 500NA FOR PRIMARY | Klockner-Moeller Corp (USA) |
| Reference | Meaning |
|---|---|
| NZM6B-63/ZM6A-50-800-NA | 5/9 Secondary reference Klockner-Moeller Corp |
| NZM66-63/ZM6A-50-800-NA | 5/9 Secondary reference Klockner-Moeller Corp |
NSN 5925-01-155-9582 is a Circuit Breaker, manufactured by Klockner-Moeller Corp, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-155-9582 has 1 manufacturer part number on file: NZM6B - 63/ZM6A - 50 - 500NA FOR (Klockner-Moeller Corp).
Key specifications for NZM6B - 63/ZM6A - 50 - 500NA FOR: Reset Method: MANUAL; Internal Trip Release Configuration: SHUNT TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 600.0 AC ALL LOCATIONS; Mounting Facility Type and Quantity: 6 THREADED HOLE(S). 27 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.