Adding new service

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Old 10-01-14, 04:31 AM
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Adding new service

I am putting in a 50A-2pole breaker to run a 220 line in the service box. I need to run the wire 45 feet through an un- finished basement. It will connect to a Spa panel on an out side wall. The panel is 125A with a 50A GFCI breaker. The hot tub is 120/240 15.5/40.5. My question is what kind of wire do I need to use for the 45 foot run from the service panel?
 
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Old 10-01-14, 04:39 AM
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So long as the subpanel is on the outside of the wall and the cable enters the back of the sub panel you can use 6-3 NM-b. If it runs in conduit on the out side wall before reaching the subpanel you will have to transition to UF-b or THWN where it leaves the building.
 
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