10/3 uf-b

Mar 17, 2009 5 Replies
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i just run 10/3 uf-b from my house to a 12x16.. i have a sub box out there that the 10/3 is ran to. i have 4 single 20 amps 1 is 3 pulgs and 1 is for a ac unit. and 1 is for two flood lights and one is for two over head ligts! i was told not to use the (RED WIRE) just use the white black and ground! is this safe for what im useing? thanks


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J

You'd be better off running the 10/3 off a pair of breakers and two the 20s on black and the other two on red. That's if the box you have them in will support that. How big is the breaker in your main panel you are supplying the 10/3 with? How far are you running it?

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B

White, Black, & ground. 110vac circuit.

Are you running 220 out there? White is neutral, Red, and Black would be the two hot legs.

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bataviaohio had written this in response to

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the box > White, Black, & ground. 110vac circuit.

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bataviaohio had written this in response to

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its about 110 feet from house to the 12x16

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J

10/3 might be a little small for your distance. You should be able to hook the red and black up to the two pole breaker in your main box. Then you can also hook the red and black up at the top of your subpanel. Then install your 4 breakers and they should be half on the red and half on the black. Otherwise you're wasting the power carrying potential of one of your wires. And you also are supposed to keep the ground and white on isolated bus bars in your subpanel as well as run a ground rod near it. Really 2 ground rods per the latest code but one wll at least keep you safe.

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