The Circuit Breaker, cataloged under National Stock Number 5925-01-123-2828, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Wesco Distribution, Inc. Div Harrisburg Pa. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5925-01-123-2828 |
| Primary Part Number | 1241C54G01 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Wesco Distribution, Inc. Div Harrisburg Pa |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Operating Voltage Type and Rating Per Pole in Volts | 500.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Actuator Position Designation | AT POLE TWO |
| Switch Terminal Type | TAB, SOLDER LUG |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Width | 3.000 INCHES NOMINAL IN |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Switch Voltage Rating and Type in Volts | 250.0 AC AND 30.0 DC |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 140.0 ALL LOCATIONS |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 14.625 INCHES NOMINAL IN |
| Switch Location and Position Designation | INTERNAL AT POLE THREE |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 9.000 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Pole Quantity | 3 |
| Mounting Surface to Terminal End Distance | 10.375 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 400.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | INSTANTANEOUS AND TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 100000.0 AC ALL LOCATIONS |
| Body Length | 15.500 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 20.000 MINIMUM AT 200 PCT AND 32.000 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Switch Current Rating and Type in Amps | 5.0 AC AND 5.0 DC |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 3.000 INCHES NOMINAL IN |
| Inclosure Protection Type for Which Designed | GENERAL PURPOSE |
| Switch Contact Arrangement | SINGLE POLE, DOUBLE THROW |
| 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 |
|---|---|
| 1241C54G01 PRIMARY | Wesco Distribution, Inc. Div Harrisburg Pa (USA) |
| ETN6909-10S31 PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
| ETN6909-10S31 | I-T-E Imperial Corp Sub of Gould Inc Distribution and Controls Div (USA) |
| 1241C54G01 PRIMARY | Fromm Electric Supply of Reading, Penna., Llc Dba Fromm, Llc Div Fromm Reading (USA) |
| Reference | Meaning |
|---|---|
| 1241C54G01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-123-2828 is a Circuit Breaker, manufactured by Wesco Distribution, Inc. Div Harrisburg Pa, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-123-2828 has 4 manufacturer part numbers on file: 1241C54G01 (Wesco Distribution, Inc. Div Harrisburg Pa), ETN6909-10S31 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), ETN6909-10S31 (I-T-E Imperial Corp Sub of Gould Inc Distribution and Controls Div), 1241C54G01 (Fromm Electric Supply of Reading, Penna., Llc Dba Fromm, Llc Div Fromm Reading).
Key specifications for 1241C54G01: Reset Method: MANUAL; Operating Voltage Type and Rating Per Pole in Volts: 500.0 AC ALL LOCATIONS; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Actuator Position Designation: AT POLE TWO. 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.