Electrical automation


Soft-Starters are electronic starters designed to accelerate, decelerate and protect three-phase induction motors, controlling the voltage applied on the motor.

The SSW-05 Plus Micro Soft-Starters, with DSP control (Digital Signal Processor) have been designed to supply an excellent performance during starting and stopping electric motors with excellent cost / benefit ratio.
The Operator Interface allows easy parameter setting, simplifying the start-up and operation activities.
The SSW-05 Plus Micro Soft-Starters are compact, optimising the space in electrical panels and already incorporates all protections for the driven motor.

Bladed Vacuum Pumps, Centrifugal Pumps, Crusher (Unloaded Starts), Screw Compressors (Relief Start), Mixers, Cellulose Refiners, Axial Fans (Low Inercia and Low Load).


  • Current: 3 to 85 A
  • Voltage: 220 to 575 V
  • Built-in By-pass
  • DSP control
  • Remote HMI (optional)
  • Built-in motor protections
  • Reduction of stress on couplings and other transmission devices during starting (gear boxes, sheaves)
  • Extended lifetime of motor and mechanical components / parts due to reduced mechanical shocks
  • Easy operation, programming and maintenance
  • Simple electrical wiring
  • Operation in ambient up to 55°C (122°F)

SSW05 Softstarts Brochure

WEG Softstarts SSW_05_brochure

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