Circuit breaker


Old 08-26-09, 02:03 PM
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Circuit breaker

I am going to wire my shed using a 40 amp sub panel with 2 20 amp breakers. I'll have 1 circuit for lights and the other for outlets. I probably won't be doing anything heavy duty out there. I have run 10/3 underground cable from the Main panel in the house which is about a 100 ft. run. The Main panel is a 100 amp service. I have room in the main panel for a double pole breaker. What size breaker should I use in the main panel to feed my 40 amp sub panel in the shed?
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Old 08-26-09, 02:16 PM
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You didn't say how far it was from house to shed..??

10/3 wg UF direct bury cable can only be breakered at maximum 30 amps.

To be code compliant many extra things need to be discussed. If your intetrested in what those are then post back.
Old 08-26-09, 03:12 PM
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You could use the wire you have and run a 20a multi-wire circuit. In that case you would not need a subpanel but would two 20a circuits.
Old 09-01-09, 04:00 AM
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I am 75 ft. from house to shed, what else do you need to know for it to be code compliant?
Old 09-01-09, 05:37 AM
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A 2-pole 30 with a back feed clip would suit your needs.
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