"Ignoramus26750" wrote in message
...
On Thu, 10 Nov 2005 19:10:05 GMT, GregS wrote:
In article , Ignoramus26750
wrote:
On Thu, 10 Nov 2005 09:36:44 -0800, Esther & Fester Bestertester
wrote:
NEC reference says that 12ga THHN wire can carry 30A max
current. Motor load is currently drawing constant 20A (230v
1ph circuit). Breaker is 30A.

It is my understanding that wire must be matched to the breaker. So,
if the breaker is 30A, the wire should be rated for 30A as well. That
means 10 gauge.

It does not have to be matched. Only on how big the breaker can be.
The wire can be bigger than the breakers rating.

I agree.

i

The breaker should be greater than the cable capacity so that the cable
doesn't burn out to protect the breaker.

Cheers.

Ken