Ignoramus18810 wrote:
On 2009-08-24, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
A high-inrush 5HP compressor might draw 50 amps on start. Although #
10 will carry it without excessive heating, you'll get less voltage
drop - even on a 30-50' run - with #8.

No biggie, though. I'm guessing you won't be going for a commercial
grade and size of compressor, anyway.

I would suggest putting as big wire as you can afford. It amounts to
just a few bucks, but lets you upgrade your equipment at will.

But first look at the lugs on your circuit breaker.
It is pointless to buy wire larger than can be
accommodated.

--Winston