Siemens Soft Started

Siemens SIRIUS 3RW40 for Standard Applications

SIRIUS 3RW40 is not simply a new product in our SIRIUS family of soft starters; it is the star among our standard soft starters. Thanks to its innovative control method, it is not just the only 2-phase-controlled soft starter in the world for use in the power range up to 250 kW (at 400V) – respectively 300 hp (at 460V) –; because of its especially compact design, it is also the smallest and ensures a space- saving, clear layout in the control cabi- net. It is therefore more than a mere addition to our 2-phase- controlled series of SIRIUS 3RW30/31 soft starters

The advantages at a glance

Uniform connecting system

Space-saving, clear layout in the control cabinet thanks to small, compact design

Inherent protection and protection against motor overload without additional wiring

Avoidance of peak inrush current thanks to adjustable current limitation

Simple and fast commissioning

Certified according to ATEX standards Features: Rating at 40oc Current     134 ~432A Power       75 ~250kW Voltage     415V AC Soft/starting and ramp down (0 ~ 20s at 40% ~ 100%) Control voltage 240V AC Integral bypass contactor Intrinsic device protection Motor overload protection Adjustable current limiting Screw terminals