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Recent content by sarbot

  1. sarbot

    reverse contactor theory & application

    Gentlemen: Thanks for your advice. Today I spoke at length with an guy who said what I needed was to purchase a magnetic starter with dual contactors and the mechanical interlock in place, plus it comes with one overload relay. He said to add another overload contactor/relay for about $20 so...
  2. sarbot

    reverse contactor theory & application

    Any help appreciated. I have two different Hz frequencies at same 220 voltage, 40 amps each leg. I need to be able to automate the selection of one source - - or the other - - but never BOTH. If one source is the "default" source, always connected by reverse contactor, when I need to switch...
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