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    bloesch14's Avatar
    bloesch14 Posts: 4, Reputation: 1
    New Member
     
    #1

    May 2, 2007, 04:04 PM
    Changing 2- 20amps to become a subpanel
    I am in need of a subpanel because Im adding runs for a finish attic with 2 15amps. And down the road a basment. But looking at my panel I have a air condition 2-20 amp breakers, my guess is a 240v for the ac. Well I am not using that run any more due to central air. What can I do to convert that to a sub panel. Run 10-3 or 8-3 to the subpanel and go from 20 amps to 30 or 40. Let me know.

    Thanks,
    Bryan loesch
    [email protected]
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    May 2, 2007, 05:00 PM
    Really depends on the size basement, the smallest I would suggest is a 40 amp subpanel, but for a small basement. Knowing how rooms tend to grow, and with the cost of copper wire, I would use #2- 4 wire SER aluminum cable if the room would be used as a family room, with electronics and computers, heaters, or workshops, etc.

    The existing line is probably only #12 so pretty much useless unless the space is only good for cold storage.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #3

    May 3, 2007, 05:23 PM
    Is Conduit an option? I live where aluminum cannot be used, They make wafer breakers
    Where 2 circuits fit in one space. So with 2 pole breaker removed, you now have 4 circuits.
    Don't forget TV and tel wire.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #4

    May 3, 2007, 06:03 PM
    Conduit is always an option, so no problem. Use PVC, it is cheap ,and easy to install.

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