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540 Views 6 Replies 4 Participants Last post by  AllanJ
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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Given the 10-2 feed bringing 30 amps at 120 volts to the shed you have a subpanel where the hot conductor of the feed was pigtailed to both of the top (master) breaker.

A maximum of 30 amps can come in on the feed hot conductor to be split up among the breakers on both sides of the panel. So a maximum of 30 amps can go back on the feed neutral which is also 10 gauge and wil not overload given a proper breaker at the supra panel.

The only caution is, as mentioned earlier, not to wire up any of the branch circuits as a multiwire branch circuit namely one 12-3 with red and black to different (any two) breakers in that panel and sharing the white neutral.
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