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  1. rhamm1320

    motor protection question (three phase to single?)

    Thanks for your replies, this is very helpful. A little more background to provide more insight. The motor is automatically controlled depending upon when vacuum is needed. Last year I had this same layout and a electrical guy had me replace the three phase breaker with two inline fuses.
  2. rhamm1320

    motor protection question (three phase to single?)

    My background is mechanical engineering, I'm not sure how I should protect the motor below: http://www.grainger.com/Grainger/items/4F742 I believe the correct term for this motor is single phase? The only power source I have is 230 VAC three phase. Should I run a two pole circuit breaker like...

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