The Circuit Breaker, cataloged under National Stock Number 5925-01-017-4990, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Schneider Electric Usa, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5925-01-017-4990 |
| Primary Part Number | A1L 390 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Schneider Electric Usa, Inc. |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Operating Voltage Type and Rating Per Pole in Volts | 240.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 1 CLAMP |
| Actuator Position Designation | AT POLE TWO |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Width | 0.734 INCHES NOMINAL IN |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 138.0 ALL LOCATIONS |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 2.234 INCHES NOMINAL IN |
| Body Height | 2.312 INCHES NOMINAL IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 90.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | INSTANTANEOUS AND TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 10000.0 AC ALL LOCATIONS |
| Body Length | 6.250 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 0.008 MINIMUM AT 100 PCT AND 0.018 MAXIMUM AT 100 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Trip Release Ambient Temp Rating | 40.0 CELSIUS NOMINAL ALL LOCATIONS DEGC |
| Terminal Type and Quantity | 3 CLIP AND 3 COMPRESSION |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Boss Height | 0.156 INCHES NOMINAL IN |
| 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 |
|---|---|
| A1L 390 PRIMARY | Schneider Electric Usa, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A1L390S | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| A1L 390 | 5/9 Secondary reference U.S. Government activity |
NSN 5925-01-017-4990 is a Circuit Breaker, manufactured by Schneider Electric Usa, Inc., classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-017-4990 has 1 manufacturer part number on file: A1L 390 (Schneider Electric Usa, Inc.).
Key specifications for A1L 390: Reset Method: MANUAL; Operating Voltage Type and Rating Per Pole in Volts: 240.0 AC ALL LOCATIONS; Mounting Facility Type and Quantity: 1 CLAMP; Actuator Position Designation: AT POLE TWO. 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.