3RW30/3RW40 Soft Starters Catalog
The Siemens SIRIUS 3RW30 and 3RW40 soft starters provide soft‑starting, stepless ramp‑down and reduced current peaks for three‑phase asynchronous motors. They are offered in several sizes and terminal options and integrate bypass contacts for compact installation.
The catalog contains product overviews, functional descriptions, technical specifications, selection and ordering data, characteristic curves, dimensional drawings and schematics for both models, together with application examples such as pumps, conveyors and presses.
| Rated operational voltage (3RW40) | 200 … 400 V |
|---|---|
| Rated control supply voltage (3RW40) | 24 V to 230 V |
| Standby control supply current (3RW40) | < 150 mA |
| Rated operational current (3RW40) | A 3 AC‑15/AC‑14 at 230 V |
The 3RW40 can be powered from 24 V up to 230 V.
The standby current is less than 150 mA.