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

    Feb 9, 2007, 08:57 AM
    Can #8 copper be used on a 50 amp breaker?
    Can #8 copper be used on a 50 amp breaker? Like a range or a Hot-tub?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Feb 9, 2007, 09:15 AM
    Not if the cable is Romex or UF, these two cables only allow for a 40 amp CB.

    If the cable is MC cable with THHN insulation, or conduit with THHN wire pulled, then a 50 amp CB can be used.
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