The Relay,electromagnetic, cataloged under National Stock Number 5945-01-293-1025, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Energy Global Gmbh & Co. Kg Se Gp I So Cs Ma. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5945-01-293-1025 |
| Primary Part Number | 3TB4012-0AN1 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Siemens Energy Global Gmbh & Co. Kg Se Gp I So Cs Ma |
| Status | ACTIVE |
| Fragility Factor | MODERATELY RUGGED |
| Main Contact Load Current Rating at Maximum Rated Voltage | 4.3 AMPERES AC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Frequency in Hertz | 50.0 NOMINAL |
| Auxiliary Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES AC RESISTIVE LOAD |
| Coil Quantity | 1 |
| Environmental Protection | DUSTPROOF |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Nonpile-Up Main Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Auxiliary Contact Maximum Voltage Rating in Volts | 660.0 AC AND 600.0 DC |
| 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 |
|---|---|
| 3TB4012-0AN1 | Siemens Energy Global Gmbh & Co. Kg Se Gp I So Cs Ma (DEU) |
| 3TB4012-0AN1 | Siemens Corp (USA) |
| Reference | Meaning |
|---|---|
| 3TB4012-0AN1 | C/1 Advisory reference — outside the item-of-supply concept Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division |
| 3TB4012-0AN1 | 3/9 Design control — primary reference Data Telecom |
NSN 5945-01-293-1025 is a Relay,electromagnetic, manufactured by Siemens Energy Global Gmbh & Co. Kg Se Gp I So Cs Ma, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-293-1025 has 2 manufacturer part numbers on file: 3TB4012-0AN1 (Siemens Energy Global Gmbh & Co. Kg Se Gp I So Cs Ma), 3TB4012-0AN1 (Siemens Corp).
Key specifications for 3TB4012-0AN1: Fragility Factor: MODERATELY RUGGED; Main Contact Load Current Rating at Maximum Rated Voltage: 4.3 AMPERES AC RESISTIVE LOAD; Duty Type: CONTINUOUS; Storage Type: GENERAL PURPOSE WAREHOUSE. 13 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.