subpanel

541 Views 6 Replies 4 Participants Last post by AllanJ, May 7, 2020

allnight

Discussion Starter · May 7, 2020

i have a shed that had a window ac in it.It was fed with 10-2 wire with a 30 amp 220 volt breaker from the main panel from the house. I want to put in a sub panel ,the sub panel i have is a 125 amp 2 main lug with neutral bar and ground bar can i use the 10-2 wire to wire the sub panel? Ill only be hooking up a 115v ac and a overhead light and one outlet.

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Jim Port

· #2 · May 7, 2020

If the AC is 240 volts you do not have a neutral in the cable. You can reconfigure the cable for 120 volt but every other breaker tab will be dead.

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Jim Port

· #4 · May 7, 2020

Feeding both legs of the panel could overload the neutral. You would be creating a mwbc.

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Jim Port

· #6 · May 7, 2020

If they feed both hot lugs like you suggested the feed now could have neutral current from 2 circuits on the same leg flowing on the undersized neutral.

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