ECN Forum Forums General Topics of the Trade General Discussion Area Wiring size for a long run

Using a voltage drop calculator I got on the Web and the info you gave you will have voltage drop of 10.5 volts or 9.2% if you use #12

#10s would be 5.5% drop or 6.3 volts
#8s would be 3.5% drop or 4.0 volts
#6s would be 2.2% drop or 2.2 volts