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Answer for USA, Canada and countries running a 60 Hz power supply service.10-2 wiring is good for up to a 30 Amp 240 volt Air Conditioning (AC) unit.

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That answer assumes the A/C is to be installed in a residential installation, because the service voltage is 240.

The length of wire-run should also be factored-in when deciding the correct wire size.

To get the right answers refer to the Wiring Codes or Regulations for your locality. (Town/State.)

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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14y ago
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14y ago

It would be wise for you to contact a licensed electrician to answer this question.

A wrong answer may burn down your house & kill you & others.

A quick call to a professional is the safe way to go.

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Q: Is it ok to wire a 240 Volt air conditioning unit with 10-2 gauge wire?
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