[Gordoe]

GFCI devices look at the current flowing through the line side of the circuit and compares it to the neutral. If the device sees a difference of 8mA or more then it will trip. It doesn't use the ground as a reference. NOTE!!! testing your GFCI regularily (common for reefers, OOPS:eek [img]images/smiles/icon_smile.gif[/img] is just as important as having them. I've seen them draw as much as 17A before the circuit breaker tripped. The GFCI did not trip!!!

Spend the extra money on the breaker for your panel. IMO