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Relay Logic

  1. Feb 2, 2010 #1

    I have two 120V sources. One is inverter and one is normal AC from sticking contact. And i want only one of them as output. Output will be from inverter or 120V from sticking contact.

    I want normal AC from sticking contact to be active. If it is shutdown so i want output will automatically switched over to inverter. And if 120V from sticking contact is back so i want it automatically switch to 120V sticking contact.

    I have thinked to use relays, but need some help. How to design it out.

  2. jcsd
  3. Feb 2, 2010 #2
    Playing with 120V ac is pretty dangerous, you better watch out. Does it need to be controlled by a low DC current or will a switch work?
  4. Feb 3, 2010 #3

    I have found out. I neeed a contactor to do this work. Thanks
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