The Circuit Breaker, cataloged under National Stock Number 5925-01-593-8499, 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 12 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 | 5925-01-593-8499 |
| Primary Part Number | ED42M020 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Siemens Energy and Automation Inc Ite Circuit Protection Div |
| Status | ACTIVE |
| Operating Voltage Type and Rating Per Pole in Volts | 480.0 AC AND 250.0 DC ALL LOCATIONS |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 6.350 INCHES NOMINAL IN |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 2.000 INCHES NOMINAL IN |
| Body Height | 4.560 INCHES NOMINAL IN |
| Pole Quantity | 2 |
| Maximum Continuous Load Current Rating Per Pole | 20.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | INSTANTANEOUS ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 18000.0 AC AND 30000.0 DC ALL LOCATIONS |
| Trip Release Ambient Temp Rating | 40.0 CELSIUS NOMINAL ALL LOCATIONS DEGC |
| Trip Release Method | THERMAL-MAGNETIC ALL LOCATIONS |
| 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 |
|---|---|
| ED42M020 PRIMARY | Siemens Energy and Automation Inc Ite Circuit Protection Div (USA) |
NSN 5925-01-593-8499 is a Circuit Breaker, manufactured by Siemens Energy and Automation Inc Ite Circuit Protection Div, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-593-8499 has 1 manufacturer part number on file: ED42M020 (Siemens Energy and Automation Inc Ite Circuit Protection Div).
Key specifications for ED42M020: Operating Voltage Type and Rating Per Pole in Volts: 480.0 AC AND 250.0 DC ALL LOCATIONS; Body Style: MULTIPOLE-SINGLE ACTUATOR TYPE; Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 6.350 INCHES NOMINAL IN; Circuit Protection Type: OVERCURRENT ALL LOCATIONS. 12 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.