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  1. 1bobn29

    Two speed control for NEMA Size 1, 2, 3 480VAC Motor Starters

    DPC, Thanks for the advice. I'm using GE CR309 series 2 spd starters which will be mechanically and electrically interlocked. Bob
  2. 1bobn29

    Two speed control for NEMA Size 1, 2, 3 480VAC Motor Starters

    I am trying to determine the proper way to control a 2 speed, 2 winding, 3 phase 480VAC motor using a 4 position maintained selector switch. The switch is a "break before make" between positions. Left to right positions are "Fast, Slow, Off, Auto". Is it advisable to provide...

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