House Wiring NM Wire Gage For 30 Amp Breaker Quest. ?

[Robert11]

Hello:

For the standard Copper NM interior house wiring:

Am I correct than for (any) circuit breaker labeled 30 amps, the minimum gage of wire going to it should be # 10 AWG ?

Thanks, B.

[Speedy Jim]

You are indeed (correct).

[Now let's see who will trot out Art. 240-3 exceptions...]

Jim

[The Real Tom]

Per 2002NEC 240.4(d), YES. 10# for non 240.4(e-g) applications, 10 AWG can be used on 30 amp circuits.

Now just summerizing what the NEC says, so read for yourself if you are serious about learning more.

hth,

tom

[The Real Tom]

Oops, forgot to say copper. If you have alumium, then t310.16 says

8#.

hth,

tom

[TURTLE]

This is Turtle.

Yes as to looking at any wire guage chart but you could possibly find a no if you researched hard enough of the NEC code to find a flaw in your application. So Yes if you don't like to arguee.

TURTLE