contactor or relay

Discussion in 'General Electronics Chat' started by Bob Vaughn, Dec 1, 2012.

  1. Bob Vaughn

    Thread Starter New Member

    Dec 1, 2012
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    I have two 30 amp circuits that I currently have two 30 amp timers that power my Christmas decorations....for some reason one of the timers runs faster than the other so they do not turn on and off in unison. I would like to run one of the timers to power a contractor or relay to turn the decorations on an off at the same time. Can some one tell me how to wire this project. Plus what do I need to purchase? Thanks in advance for your advice....:(
     
  2. #12

    Expert

    Nov 30, 2010
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    The big ones are called contactors. You probably need a 120VAC coil on a 2 pole, 30 amp contactor. You just wire one timer to turn the contactor on and run one power wire for each load through one of the sets of contacts. Safety requires that you put all these connections in a metal box that is connected to the green wire.

    Is that enough information? Or are you in a country that only has 220 volts?
     
  3. Bob Vaughn

    Thread Starter New Member

    Dec 1, 2012
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    0
    Nope I live in the good old USA ,,,,120 volts....
    Thanks, now to find one.....
     
  4. #12

    Expert

    Nov 30, 2010
    16,355
    6,852
    eBay, air conditioner parts

    edit: If you can only find 24 VAC contactors, you can use a 120V to 24V transformer between the timer and the contactor. That's how I built a 5HP table saw. 120V-switch-transformer-contactor-240V/30A to motor.
     
    Last edited: Dec 1, 2012
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