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    Lpd1572's Avatar
    Lpd1572 Posts: 1, Reputation: 1
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    #1

    Jun 4, 2012, 11:02 AM
    15 amp with 12-2 and 14-2
    I have 12-2 running to a 15 amp breaker. That constant runs to a box and has 14-2 running out if it to 6 can lights and a fan. It also has 12-2 running out to another light and outlet. Will this work, or do I need to change all the 14-2 to 12-2?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Jun 4, 2012, 12:16 PM
    You can have mixed wire sizes in a circuit. Since the smallest wire is #14, the max breaker size will be a 15 amp.

    The downside t having #12 at the breaker is someone in the future may assume the entire circuit is #12 and change the breaker to a 20 amp.

    You should clearly label the #12 at the panel that the circuit max is 15 amp.

    A better job would be to have all one wire size thru-out the circuit.

    If you change it all to #12, then you can have a 20 amp circuit.
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