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View Full Version : What is the wire size for a 30amp circuit at 200 feet?


danarh
Feb 17, 2010, 05:05 AM
I am trying to install a 30amp sub-panel out to my barn from the house. The wire run is approximately 200 feet including the internal wire distance in both buildings. What wire size do I need to use? Will 8/3 with ground be sufficient?

tkrussell
Feb 17, 2010, 05:08 AM
#4 copper will be needed to deliver 30 amps 120 volts 200 feet.

danarh
Feb 17, 2010, 05:33 AM
My oversight... sorry. 30 amps 240V at 200 feet. What is the required wire size?

tkrussell
Feb 17, 2010, 05:45 AM
#6