Sequential Starting: Can I use one soft starter to separately control mutiple motors?

Yes, one soft starter can control two motors in sequence. However, the control and wiring is complex and expensive and any saving in soft starter cost is often outweighed by additional component and labour costs.

In order to use a soft starter in a sequential starting situation,

1. Each motor must have a separate:
   • main contactor
   • bypass contactor
   • overload protection
2. The soft starter must be suitably rated for the total start duty.