What Size Ground Wire for 150 Amp Service
Select Ampere Rating or Setting of Automatic Overcurrent Device in Circuit Ahead of Equipment Not Exceeding. Since this is a single phase dwelling service you can use 2 AWG copper or 10 aluminum for a 125 amp service or main feeder. Wire Cable Buying Guide At Menards For 150 amps in THWN wire size is 10 some municipalties allow you to go 1 size smaller since it carries the unbalanced load and that would be a. . Enter the information below to calculate the appropriate ground conductor size. First off it depends on the type of wire used. Ground Wire Size Calculator. - 15 Amperes 20 Amperes 30 Amperes 40 Amperes 60 Amperes 100 Amperes 200 Amperes 300 Amperes 400 Amperes 500 Amperes 600 Amperes. A typical electric dryer draws 30 amps and must be wired with 10-gauge cable while an electric range or hot tub which draw 50 amps each must be wired with 8-gauge copper wire. They all still may be very comfortably under 150 or even 10...