Siemens Sirius

SIRIUS Soft Starter 200-480 V 143 A, AC/DC 24 V screw terminals Analog output. The SIRIUS 3RW50 Basic Performance soft starter is suitable for simple applications requiring a gentle start and stop of three-phase asynchronous motors. It allows for smooth starting, reduces current spikes, avoids voltage fluctuations during startup, relieves the power supply network, and decreases mechanical stress on the drive. Additionally, it offers significant space and wiring savings compared to star-delta starters and frequency converters, is maintenance-free, and easy to handle.

The integrated bypass enables a very compact design, saves energy, and ensures lower heating in the control cabinet. Intelligent monitoring functions protect the soft starter from overheating and the motor from overload. The current can be limited to an adjustable maximum value during startup. The innovative Soft-Torque function ensures a gentle motor start. With the integrated remote reset, faults can be quickly and easily resolved from a distance.

The soft starter has worldwide approvals, including for explosion-hazardous applications. The Basic Performance soft starters 3RW50 are available for networks up to 600 V in a power range up to 315 kW, with 24 V or 110-250 V control supply voltages, and consistently feature screw and spring terminals. Different device variants are available for analog output and thermistor motor protection. Optional communication modules allow connection via PROFINET, PROFIBUS, and Modbus TCP. Various HMI modules are available for installation in the control cabinet door.

The 3RW50 soft starters replace the proven 3RW40 series. SIRIUS 3RW5 soft starters - as flexible as your task.