Siemens 3RA2437-8XF32-1AC2
MPN3RA2437-8XF32-1AC2
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Contactor assembly for star-delta (wye-delta) start AC-3, 55 kW/400 V, 24 V AC 50/60 Hz, 3-pole, size S2 screw terminals electrical and mechanical interlock 3 NO + 3 NC integrated
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Contactor assembly for star-delta (wye-delta) start |
| Main circuit poles | 3 |
| Brand | SIRIUS |
| Reference designation (IEC 81346-2) | Q |
| Parameter | Value |
|---|---|
| Rated motor power at 400 V | 55 kW |
| Rated voltage at AC-3, max. | 690 V |
| Parameter | Value |
|---|---|
| Rated voltage range at 50 Hz | 24 V |
| Control supply voltage type | AC |
| Auxiliary switch extension | No |
| Parameter | Value |
|---|---|
| AS-Interface protocol support | No |
| Parameter | Value |
|---|---|
| Mounting / fastening method | screw fixing |
| Mounting position | +/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface |
| Width | 177.5 mm |
| Height | 142 mm |
| Depth | 223 mm |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
MPN
3RA2437-8XF32-1AC2