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Thread: Service Panel Change Out.. Need Help Determining and Sizing Panel

  1. #1

    Question Service Panel Change Out.. Need Help Determining and Sizing Panel

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    Last edited by Mike Pastorelli; 05-29-2013 at 04:44 PM. Reason: Redundant Post

  2. #2
    DIY scratch-pad engineer leejosepho's Avatar
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    With the exception of your A/C backup, my wife and I are now doing all of that with a 125A Square-D QO panel after replacing our old 60A fuse panel and a couple of later-added sub-panels (A/C and workshop sub-feed) about a year-and-a-half ago.
    "Great minds discuss ideas, average minds discuss events and small minds discuss people." --Eleanor Roosevelt

  3. #3
    DIY Member Stuff's Avatar
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    Use this spreadsheet to size panel amps to NEC rules: http://www.mikeholt.com/documents/ca...lculations.xls

    Then it is just number of spaces needed.

  4. #4
    Electrical Contractor/Instructor jwelectric's Avatar
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    220.82 of the NEC gives step by step instructions

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