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    loupi01's Avatar
    loupi01 Posts: 92, Reputation: 1
    Junior Member
    		  
    #1

    Apr 19, 2006, 12:09 AM
    Junction Box size
    I have and oven with 10/3 mc cable attached. I am going to splice this to a 10/3 romex cable that I pulled from the sub panel. Is a metal 3" deep single gang box big enough? How many cubic inches do I need?

    Thank you
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Apr 19, 2006, 02:07 AM
    Need to allow 2.5 cubic in for each insulated #10 wire, and 1-2.5CI for all grounds.
    6- #10 x 2.5 CI= 15 + 2.5 for the grounds=17.5 cubic inch minimum

    A 4"x4"x3" box has 48 CI of space ,so the box is fine
    loupi01's Avatar
    loupi01 Posts: 92, Reputation: 1
    Junior Member
    		  
    #3

    Apr 19, 2006, 07:24 AM
    tkrussell,
    Again, many thanks for your help.
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