The SIRIUS 3RW30 Basic Performance soft starters are suitable for soft starting of three-phase asynchronous motors.
The two-phase actuation not only keeps the current at the lowest values in all three phases over the entire ramp-up time, but also eliminates interfering DC components.
This not only enables two-phase starting of motors up to 55 kW (at 400 V), but also prevents current and torque peaks occurring in star-delta starters.