Siemens SIRIUS 3RA2318-8XB30-1AB0 reversing contactor assembly, size S00, 7.5 kW at 400 V AC-3, 24 V AC/DC coil, screw terminals, 73 mm depth.
| Parameter | Value |
|---|---|
| Product designation | Reversing contactor assembly |
| Main circuit poles | 3 |
| Brand | SIRIUS |
| Reference designation (IEC 81346-2) | Q |
| Parameter | Value |
|---|---|
| Rated motor power at 400 V | 7.5 kW |
| Rated motor power at 460/480 V (hp) | 10 hp |
| Rated motor power at 575/600 V (hp) | 10 hp |
| Rated current at 480 V | 14 A |
| Rated current at 600 V | 11 A |
| Parameter | Value |
|---|---|
| Rated voltage range at 50 Hz | 24 V |
| Control supply voltage type | AC |
| Auxiliary switch extension | Yes |
| Parameter | Value |
|---|---|
| AS-Interface protocol support | No |
| Parameter | Value |
|---|---|
| Main contact conductor range (AWG) | 2x (20 ... 16), 2x (18 ... 14) |
| 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 | 90 mm |
| Height | 68 mm |
| Depth | 73 mm |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
The 3RA2318-8XB30-1AB0: The coil is 24 V, 50/60 Hz, with screw-type terminals for the magnet coil and main current circuit. The assembly ships with two 3RT2018-1AB02 contactors.
The unit can be rotated ±180° on a vertical surface and tilted forward/backward ±22.5°, giving flexibility in tight cabinets. Dimensions: 90 mm wide, 68 mm high, 73 mm deep. Vibration resistance is 11.4 g at 5 ms and 7.3 g at 10 ms for both AC and DC.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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