Welder Circuit - sanity check

[Aceman]

Wow I guess the #6 I used for the 50a welder circuit is overkill?

If 30a requires 10/2, how can 50a also use 10/2? I remember asking the inspector while he was here about wire sizes and I cannot see 10/2 passing on a 50a circuit At least not around here.

I'm not getting involved in this debate, I had enough of it in the air compressor thread. But to answer your question, there are a few exceptions that allow a larger breaker-wire size than is typically used in general purpose branch circuits. Motors and welders are a couple of the exceptions.

 

[walrus]

Wow I guess the #6 I used for the 50a welder circuit is overkill?

If 30a requires 10/2, how can 50a also use 10/2? I remember asking the inspector while he was here about wire sizes and I cannot see 10/2 passing on a 50a circuit At least not around here.

It may not in Canada, but it will in the US following the NEC.