Siemens SIRIUS 3RW52 general performance soft starters

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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.

  • 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
  • For drives in performance classes from 5.5 to 560 kW