Using THHN No. 14 on 20 Amp lighting circuit

[iwire]

What he’s trying to say [without actually saying it] is that on motors the wire size and the OCPD size is speced separately on the nameplate.

David I agree with you and I think the rest do as well.

The problem is it seems Gmack is saying that applies to receptacles as well.

NO! You cannot protect a 15A receptacle with a 30A CB under any circumstances.

In Article 430 it is acceptable and preferable.

In other words a 15 amp outlet supplying a motor could be protected with a 30 amp breaker.

I disagree with that idea if that is what he was trying to say.

 

[dnem]

Ooops !
I didn't read his post closely enough

 

[Jim W in Tampa]

David I agree with you and I think the rest do as well.

The problem is it seems Gmack is saying that applies to receptacles as well.



In other words a 15 amp outlet supplying a motor could be protected with a 30 amp breaker.

I disagree with that idea if that is what he was trying to say.

Me too.That would leave a receptacle that might get used for something else that is not qualified.

 

[George Stolz]

Even if the motor receptacle were an oddball configuration for the structure, which was not a standard 15A configuration, I do not see how installing it on a 30A breaker would be legal? That seems to be against both 210.21(B)(1) and (3).

 

[ryan_618]

Thats what I'm saying as well. Gmack is wrong.

 

[roger]

I agree as well and so does 430.42, specifically 430.32(C)

Roger