Siemens SIRIUS 3RW Family | 3RW52 Series — Next Gen. General Performance Soft-Starters:

The SIRIUS 3RW52 soft starter is the ideal alternative to star-delta starters. As an all-rounder, it is applicable for any type of drive. With ideal 3-phase motor control, they cover the performance range from 5.5 kW to 560 kW (at 400 V). With optional HMI modules and plug-in communication modules (PROFINET, PROFIBUS, Modbus) and either an analog output or thermistor motor protection, they offer maximum flexibility. With their modern hybrid switching technology, the SIRIUS 3RW52 soft starters offer efficient switching for long-term, energy-saving use.

To create reliable machines, our new SIRIUS 3RW52 soft starters offer you intelligent functions such as automatic parameterization, pump cleaning, and condition monitoring. So if you’re designing a new machine in the near future, we’ll support you with sophisticated solutions for pumps, compressors, fans, and conveyor belts, or with process development; regardless of whether your machine is intended for the automotive, wastewater, or the food and beverage industry.

Features:

3-phase control for optimal motor start

Parameterization over rotary setting elements

Various bus connections (PROFINET, PROFIBUS, Modbus)

Operator panel with optional display

Electrical robustness

Soft Torque

For drives in performance classes from 5.5 to 560 kW

Hybrid switching devices and three-phase motor control

Minimum power loss and optimum/symmetrical motor control

TIA integration – communication modules and HMI modules optional

Efficient configuration and maximum flexibility in automation engineering

Reduced mechanical loading and optimum pump stop

Parameterization using potentiometers

Simple and fast commissioning

Wide range for control supply and main voltage

Low variance, high system availability even with weak supply networks