The Circuit Breaker, cataloged under National Stock Number 5925-01-345-4977, is classified within Federal Supply Class 5925 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Eaton Corporation Dba Eaton Inoac. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-345-4977 |
| Primary Part Number | HFD2040L |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — No Item Name Available |
| Manufacturer | Eaton Corporation Dba Eaton Inoac |
| Status | ACTIVE |
| Body Style | RECTANGULAR DIMENSIONAL ENVELOPE |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Actuator Function | TRIP-RESET |
| Material | PLASTIC CASE |
| Trip Release Method | MAGNETIC ALL LOCATIONS |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Fragility Factor | MODERATELY RUGGED |
| Pole Quantity | 2 |
| Unthreaded Mounting Hole Diameter | 0.196 INCHES NOMINAL IN |
| Special Handling Feature | MAGNETIC |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Maximum Continuous Load Current Rating Per Pole | 40.0 AMPERES AC AND 40.0 AMPERES DC ALL LOCATIONS |
| Terminal Type and Quantity | 6 COMPRESSION |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Actuator Position Designation | BETWEEN POLE ONE AND TWO |
| Trip Release Characteristic | INSTANTANEOUS ALL LOCATIONS |
| Reset Method | MANUAL |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 25000.0 AC AND 22000.0 DC ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 600.0 AC AND 250.0 DC ALL LOCATIONS |
| Inclosure Protection Type for Which Designed | DUSTPROOF AND FUNGUS PROOF |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 100-001529 | International Switchboard Corp Div of Equus Power Systems Corp (USA) |
| HFD2040L PRIMARY | Eaton Corporation Dba Eaton Inoac (USA) |
| HFD2040 | Eaton Corporation Dba Eaton Inoac (USA) |
NSN 5925-01-345-4977 is a Circuit Breaker, manufactured by Eaton Corporation Dba Eaton Inoac, classified under FSC 5925 (No Item Name Available). Status: active.
NSN 5925-01-345-4977 has 3 cross-referenced part numbers: 100-001529 (International Switchboard Corp Div of Equus Power Systems Corp), HFD2040L (Eaton Corporation Dba Eaton Inoac), HFD2040 (Eaton Corporation Dba Eaton Inoac).
There are 2 known substitutes for 5925-01-345-4977: 5935-00-438-9561, 5945-01-706-2474. Verify interchangeability with system specifications before substitution.
Key specifications for HFD2040L: Body Style: RECTANGULAR DIMENSIONAL ENVELOPE; Frequency in Hertz: 60.0 ALL LOCATIONS; Actuator Function: TRIP-RESET; Material: PLASTIC CASE. 28 total characteristics are documented in the Federal Logistics Information System.