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rgsgww 09-05-2008 08:28 AM

What was the code requirements on amperage?
I have a dryer socket rated to 40 amperes and the wire feeding it is 10/3 nm-b and the breaker is 40 amps, this was done by licensed electricians back in 2001. I know this is a violation as you are supposed to use the 60c amperage, not 90c. Was it code back then or not? If it wasn't then is there any tricks to pulling 8/3?

petey_c 09-05-2008 08:58 AM

It is permissible to use 10/3 nm-b for a dryer. However, it should be on a 2P30A breaker, not a 40. All of the electric dryers I've ever installed (or seen installed) have been 30A. Check the info on the dryer for the proper sizing of conductors. If it calls for a 40A circuit then you'll have to run 8/3. No special tricks that are different than pulling other wires; Be careful, be safe. pete

jrclen 09-05-2008 09:58 AM

I agree with Petey, everything sounds ok except the breaker size. Replace the 40 with a 30.

rgsgww 09-05-2008 11:33 AM

Thanks for the fast response, I will check the dryer for proper amperage, if it needs 40 (I doubt it) I guess I will be pulling 8/3 but if it just needs 30 then I'll just change the breaker with a 30.

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