Understanding Air Conditioning Circuit Requirements
Electrical Troubleshooting tips for an Air Conditioner: I need a 2 pole 20 amp breaker for my panel box, It is for the wire to my air conditioning unit. The specs are rated voltage…
The Air Conditioner Specifications Tell It All
This electrical question came from: Kevin, a Homeowner from Canada
Thanks for your electrical repair question Kevin.
- Kevin, the issue is not what size circuit breaker you should install, the issue is to make sure that the installed circuit will be exactly what the air conditioning unit is specifying which in this case is a 30 amp 230 volt circuit.
- The 30 amp circuit requires #10 AWG wire or 10/2 cable that will be protected by a 30 amp circuit breaker.
- Kevin, you should not use 12/2 cable for this circuit because it will be too small because the circuit will be limited to 20 amps and the 18.9 amps required for this load is over 80 percent of the rated load for the 20 amp circuit.
The Following will assist you with your Electrical Troubleshooting Question:
House Wiring Circuits and Circuit Breakers
This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electric Circuit Listing
The size of the home electrical service panel is designed by calculating the square footage of the home and factoring in the code requirements for the electrical circuits that are required.
Home Circuit Breaker
Electrical Wiring Protection using Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
Home Electrical Wire
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.