Solid State Soft Start, Soft Start Starter Circuit

Tech Tip


Soft start controls and solid state starters can be used to start multiple motors in parallel provided the motors are mechanically connected to the same load. For successful application, the following must be observed:
  1. Motors must be the same HP, NEMA design, RPM, frame and voltage rating, and preferably from the same manufacturer.
  2. Each motor must have its own thermal overload relay and branch circuit protection.
  3. The total FLA of the motors should not exceed the FLA rating of the soft start control or solid state starter.
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