Deliver to
United Kingdom
The Siemens 3RW3018‑1BB04 is a compact, high‑efficiency SIRIUS® soft starter engineered for motors up to 7.5 kW at 400 V (17.6 A) with a 24 V AC/DC control voltage. Designed using phase‑angle control through robust thyristors, this starter delivers smooth acceleration, minimized inrush current and torque shocks, and seamless voltage ramp‑up—ideal for conveyors, pumps, hydraulic systems, and heat pumps. The integrated bypass contact arrangement ensures minimal power loss once the motor reaches full speed, reducing thermal load and increasing installation flexibility.
Choosing the Siemens 3RW3018-1BB04 means investing in a smart, space-saving solution that protects both your motor and your system infrastructure. Its robust design supports industrial environments (-25 °C to +60 °C, up to 5,000 m altitude), while the integrated bypass and phase control lower starting stress and extend motor service life. As part of the proven SIRIUS 3RW30 family, it offers exceptional reliability and compatibility with a wide range of three-phase applications.
For more information please check the datasheets.
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