Siemens Sirius 3RW55 (5.5 – 1200 kW) High

SIRIUS soft starter 200-690 V 210 A

SIRIUS soft starter 200-690 V 210 A

SIRIUS soft starter 200-690 V 250 A

SIRIUS soft starter 200-480 V 315 A

SIRIUS soft starter 200-690 V 315 A

SIRIUS soft starter 200-480 V 315 A

SIRIUS soft starter 200-690 V 315 A

SIRIUS soft starter 200-690 V 315 A

SIRIUS soft starter 200-480 V 370 A

SIRIUS soft starter 200-690 V 370 A

SIRIUS soft starter 200-690 V 370 A

SIRIUS soft starter 200-480 V 370 A

SIRIUS soft starter 200-690 V 370 A

SIRIUS soft starter 200-480 V 370 A

SIRIUS soft starter 200-690 V 370 A

SIRIUS soft starter 200-480 V 470 A

SIRIUS soft starter 200-690 V 470 A

SIRIUS soft starter 200-480 V 470 A

SIRIUS soft starter 200-690 V 470 A

SIRIUS soft starter 200-480 V 470 A

SIRIUS soft starter 200-690 V 470 A

SIRIUS soft starter 200-480 V 470 A

SIRIUS soft starter 200-690 V 470 A

SIRIUS soft starter 200-690 V 570 A

SIRIUS soft starter 200-480 V 570 A

SIRIUS soft starter 200-690 V 570 A

SIRIUS soft starter 200-480 V 570 A

SIRIUS soft starter 200-690 V 570 A

SIRIUS soft starter 200-480 V 570 A

SIRIUS soft starter 200-690 V 570 A

Direct starting for industrial motors can lead to overloading and fast parts wear. To avoid these problems, Siemens provided a simple and efficient solution – high-performance soft starters with widen functionality. That is Sirius 3RW55 series.

Such starters increase the resource of the mechanism due to a significant reduction in mechanical and hydraulic shocks, as well as voltage dips during start-up. They are adapted for three-phase asynchronous motors with a power range from 5.5 kW to 700 kW in standard mode and up to 1200 kW in the star-triangle scheme.

Siemens Sirius 3RW55 available in two series:

  • Standard (5.5-1200 kW)
  • Failsafe (5.5-560 kW)

Its main characteristics include auto parameterization, hybrid three-phase control technology, and TIA integration. Highlighting its benefits we can mention thermal losses minimization, fast and customized mounting, simple control panel and adaptation for pump starting. You can simply use its communication module mounting it on the outer door of your main unit.

Both 3RW55 and 3RW55 Failsafe are available in our catalog. You can order them online for the best pricing.


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