The Relay,electromagnetic, cataloged under National Stock Number 5945-01-411-9380, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Idec Systems and Controls Corp. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-411-9380 |
| Primary Part Number | RY4S-ULDC100-110V |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Idec Systems and Controls Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 240.0 AC AND 100.0 DC |
| Fragility Factor | MODERATELY RUGGED |
| Arc Quenching Method | AIR |
| Precious Material | GOLD AND SILVER |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Winding DC Resistance Rating | 12100.0 OHMS NOMINAL SINGLE WINDING |
| Nominal Operating Current Rating and Type | 9.1 MILLIAMPERES DC SINGLE WINDING |
| Time Delay | 0.02 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME |
| Coil Quantity | 1 |
| Surface Treatment | GOLD CONTACT |
| Environmental Protection | DUSTPROOF |
| Precious Material and Location | CONTACT SURFACES GOLD AND CONTACTS SILVER |
| Cubic Measure | 1.449 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 110.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Material | SILVER CONTACT |
| Terminal Type and Quantity | 14 TAB, SOLDER LUG ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Purpose for Which Designed | GENERAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| RY4S-ULDC100-110V PRIMARY | Idec Systems and Controls Corp (USA) |
| Reference | Meaning |
|---|---|
| RY4S-UL-DC110 | 5/9 Secondary reference Idec Systems and Controls Corp |
NSN 5945-01-411-9380 is a Relay,electromagnetic, manufactured by Idec Systems and Controls Corp, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-411-9380 has 1 manufacturer part number on file: RY4S-ULDC100-110V (Idec Systems and Controls Corp).
Key specifications for RY4S-ULDC100-110V: Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY; Overall Height: 1.616 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 240.0 AC AND 100.0 DC; Fragility Factor: MODERATELY RUGGED. 21 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.