Siemens 3RA1425-8XC21-1AP0
MPN3RA1425-8XC21-1AP0
Contactor assembly Star-delta (wye-delta) (pre-assembled) with lateral timing relay AC-3, 15/18 kW/400 V, 3-pole Size S0, S0, S0 Electrically interlocked Screw terminal 230 V AC, 50 Hz!!! Phased-out product!!! Successor is SIRIUS 3RA2
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | contactor assembly |
| Main circuit poles | 3 |
| Brand | SIRIUS |
| Reference designation (IEC 81346-2) | Q |
Ratings & Performance
| Parameter | Value |
|---|---|
| Rated motor power at 400 V | 18.5 kW |
| Rated insulation voltage Ui (AC, pollution degree 3) | 690 V |
Contacts & Control
| Parameter | Value |
|---|---|
| Rated voltage range at 50 Hz | 230 V |
| Control supply voltage type | AC |
| Auxiliary switch extension | Yes |
Mechanical & Connection
| Parameter | Value |
|---|---|
| Main circuit connection type | screw-type terminals |
| Mounting / fastening method | screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Mounting position | with vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back |
| Width | 158 mm |
| Height | 88 mm |
| Depth | 135 mm |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Transport temperature range | -55 ... +80 °C |
| Pollution degree | 3 |
MPN
3RA1425-8XC21-1AP0