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    jfitz's Avatar
    jfitz Posts: 3, Reputation: 1
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    #1

    Sep 24, 2008, 01:23 PM
    Is there a timed automatic CB Box disconnect?
    I am looking for a way to disconnect all the power within a 200A, 42-slot, panel board (supporting single phase, 208VAC). I have found a 3-pole relay that could handle 150A and I could connect the control side to a 7 day timer and install it in a separate NEMA 1 box BUT I was looking for something that would install within the panel board itself next to all the breakers. Does such a device exist?
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #2

    Sep 24, 2008, 05:09 PM
    There are CB boxes made with contactors built in, not an add on feature. The ones I have seen and work with switch part of the panel, usually about 1/2 the panel. I suspect that you probably won't find one specifically for that mounting situation, and I doubt that any you find wouldn't fit the existing box. As far as doing it... not sure if that installation would be allowed by NEC code language. Can you install a contactor adjacent to the panel without creating a problem?
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #3

    Sep 24, 2008, 05:58 PM

    I have very basic question. If you find such a device and turn off all the power, what's going to run the timer?

    I just have to ask, why would you want to do this?
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