The Circuit Breaker, cataloged under National Stock Number 5925-01-666-5545, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Energy and Automation Inc Ite Circuit Protection Div. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-666-5545 |
| Primary Part Number | HEG3B050L |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Siemens Energy and Automation Inc Ite Circuit Protection Div |
| Status | ACTIVE |
| Internal Trip Release Configuration | SHUNT TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 100.0 AC ALL LOCATIONS |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 50.0 AMPERES AC ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| 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 |
|---|---|
| HEG3B050L PRIMARY | Siemens Energy and Automation Inc Ite Circuit Protection Div (USA) |
NSN 5925-01-666-5545 is a Circuit Breaker, manufactured by Siemens Energy and Automation Inc Ite Circuit Protection Div, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-666-5545 has 1 manufacturer part number on file: HEG3B050L (Siemens Energy and Automation Inc Ite Circuit Protection Div).
Key specifications for HEG3B050L: Internal Trip Release Configuration: SHUNT TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 100.0 AC ALL LOCATIONS; Overall Height: 139.7 MILLIMETERS NOMINAL MM; Body Style: MULTIPOLE-SINGLE ACTUATOR TYPE. 6 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.