Motor Starters

Soft Starters & Brakes


Motor soft starters are used to control the 3-Phase AC voltage to an AC motor a the time of startup to primarily limit the inrush phase current during motor speed ramp up. Motor soft starters employ a bidirectional power switch in each phase with either a gate turn-off thyristor (GTO), gate drive control, or control logic for power management and wired/wireless interfaces.

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