What amps will 12-2 electrical wire carry at 150 feet?

Answer 1

On a voltage drop question, the voltage of the system needs to be stated. The answer is for a three wire 240 volt North American system.

A 3/0 copper conductor will limit the voltage drop to 2% or less when supplying 200 amps for 150 feet on a 240 volt system.

Answer 2

A 3/0 (000) copper conductor with an insulation factor of 90 degrees C is rated at 210 amps.

Answer 3

2/0 AWG for 200 Amps in Copper. For 150 FT suggest you may want to go to 3/0.

4/0 in Aluminum and suggest 225 kcmil for 150 ft. in Aluminum.

Answer 4

I would use AWG # 3/0 copper and you will have a 1.9% voltage drop which is within the acceptable limits.

Answer 5

Normally you would use AWG #12. But for this distance I would recommend you use AWG #10 on a 20 amp breaker for the home run.

Answer 6

Use 4/0