Siemens – Soft Starters

Facilitate optimal starting and stopping of three-phase induction motors.



  • Power rating from 1.5 kW to 1200 kW
  • Conforms to IEC 60947-4-1/ IEC 60947-4-2
  • Soft start, soft stop, adjustable current limit.
  • Integrated bypass contact system
  • 2 Phase /3 Phase controllability
  • Intrinsic device protection to protect against thermal overloading of thyristors (3RW40 Series onwards)
  • Optional HMI modules and communication modules (external connection) and optional TIA integration (3RW50 Series onwards)

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