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    GJ Livingston's Avatar
    GJ Livingston Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 18, 2008, 12:40 PM
    Breaker size
    Can I use a 3 pole breaker for 2 pole cicuit
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #2

    Jan 18, 2008, 01:08 PM
    I don't know, can you, GJ? :) You are starting the question backwards.

    Tell me what you have, first. For example, do you have a standard 120 VAC breaker, one pole is feeding the supply side (usually a Black conductor), the other side conductor (White) going to the Neutral Bus in the panel box.

    Or do you have One Dual Pole Single Throw breaker with (2) 120 VAC supply conductors and a Neutral and Ground to their respective bus bars?

    You need to describe what you have and what you are trying to do, please.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Jan 18, 2008, 01:44 PM
    In theory, you could if you had a 3 phase panel. If you have single phase all bets are of, I believe.
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