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What size wire for 3.5 ton ac?

What size wire for 3.5 ton AC

What size wire for 3.5 ton ac?

A 3.5 ton ac unit, or 42,000 btu draw an average of 30-40 amps and require a size 8 or 10 AWG wire size.  Make sure that the wire is UL rated, which can be used both indoors and outdoors.


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