Siemens 3RA2444-8XF32-1AL2
MPN3RA2444-8XF32-1AL2
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Contactor assembly for star-delta (wye-delta) start AC-3, 75 kW/400 V 230 V AC, 50/60 Hz Size S3, screw terminal electrical and mechanical interlock 3 NO+3 NC
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | Contactor assembly for star-delta (wye-delta) start |
| Main circuit poles | 3 |
| Brand | SIRIUS |
| Reference designation (IEC 81346-2) | Q |
Ratings & Performance
| Parameter | Value |
|---|---|
| Rated motor power at 400 V | 55 kW |
Contacts & Control
| Parameter | Value |
|---|---|
| Rated voltage range at 50 Hz | 230 V |
| Control supply voltage type | AC |
| Auxiliary switch extension | No |
Communication
| Parameter | Value |
|---|---|
| AS-Interface protocol support | No |
Mechanical & Connection
| Parameter | Value |
|---|---|
| Main contact conductor range (AWG) | 2x (10 ... 1/0), 1x (10 ... 2/0) |
| Mounting / fastening method | screw and snap-on mounting onto 35 mm standard mounting rail |
| Mounting position | +/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface |
| Width | 220 mm |
| Height | 180 mm |
| Depth | 244 mm |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
MPN
3RA2444-8XF32-1AL2