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    john1945's Avatar
    john1945 Posts: 3, Reputation: 1
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    #1

    Nov 19, 2010, 06:11 AM
    What is the maximum size of a subpanel from a 100 amp main service panel
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Nov 19, 2010, 06:14 AM

    Usually 100A.
    john1945's Avatar
    john1945 Posts: 3, Reputation: 1
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    #3

    Nov 19, 2010, 06:31 AM
    Thank you !
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #4

    Nov 19, 2010, 08:02 AM

    The manufacture of the panel issues a specification list for the panelboard.

    On that list is the maximum size breaker for that subpanel.

    The size of the breaker can vary by manufacturer.
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