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wire size for central air conditioning unit

Required size of breaker is Max 40 amp What is the required wire size. #12 or #8 AWG

Building Supplies
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4 Answers from these members:
scott d
I understand your concern. Unfortunately, the model number listed is not a valid number. However, I suspect this will require at least a 10 gauge wire and possibly an 8 gauge. This will need to be determined by the electrician. There are various details that will need to be considered to determine the size, such as:

The distance the wire has to be run

The size of the unit

The type of the unit

I recommend letting the electrician make this decision. Thank you for using Manage My Life.
by scott d Earned 3,220 community points in Building Supplies
March 24th, 2011
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