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    jeff acosta's Avatar
    jeff acosta Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 29, 2007, 08:08 AM
    Wire and coduit size
    What size wire and conduit is needed for a 125 amp, 120/240 volt, 4 wire , sub panel?
    Flying Blue Eagle's Avatar
    Flying Blue Eagle Posts: 2,056, Reputation: 225
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    #2

    Sep 29, 2007, 08:52 AM
    I'd use no less then #6, Don't forget your copper ground from main panel to new sub panel:::::
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #3

    Sep 29, 2007, 09:50 AM
    I just wired up one that way, but I am feeding it from only a 60 amp breaker. I think the full 125 amps needs something heavier.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #4

    Sep 29, 2007, 10:11 AM
    Min size is #2 copper,or #1/0 aluminum for residential feeder.

    Should not guess at wire sizes.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #5

    Sep 29, 2007, 10:50 AM
    As I said, I thought you needed heavier wire. tkrussell knows you do. He knows the conduit size too, but may have let the #6 wire answer distract him from saying so.
    Flying Blue Eagle's Avatar
    Flying Blue Eagle Posts: 2,056, Reputation: 225
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    #6

    Sep 29, 2007, 03:10 PM
    Hey tkrussell:::- I hit the wrong key , I' just learning on the type writer keys . In fact I' m still doing what my son said, 9hunt sand peck. but I'mtrying.After I get done I look over whaty I just done and try yo correct my mistakes. I'm not going to redo thisd one F.B.E.
    danar's Avatar
    danar Posts: 69, Reputation: 2
    Junior Member
    		  
    #7

    Oct 7, 2007, 03:53 AM
    You Can Also Consult Your Nec For Your Wire Ampacities And Sizes Of Your Conduit...
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