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  1. Terrodd

    Wild leg on 230v 3 phase star - delta motors

    I'm not an electrical motor expert, but I hope someone can help me. I have a situation where I have an injection molding machine that has a 230v, 3 phase, star-delta start motor. I have gone through 4 motor contactors in 6 months. Some of the time my 100 amp ckt breaker on the wall will trip...

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