SIRIUS Soft Starters

The right soft starter for every application SIRIUS soft starters are the best solution when direct or star-delta starting doesn’t apply to three-phase motors, because problems can often arise due to mechanical impact in the machine or voltage drops in the line supply.

Our range of soft starters with intelligent functions offers a soft alternative for almost any application, from simple to sophisticated drive requirements such as heavy-duty starting. They enable you to start three-phase motors smoothly, easily, and efficiently and implement reliable machine concepts.

  • 3RW30 = Up to 55kw
  • 3RW40 = Up to 250kw
  • 3RW44 = Up to 710kw