What fuse do I need for my air conditioner?
What fuse do I need for my air conditioner? Generally a two-pole, 30 amp fuse is used for central air conditioners, but it is always recommended to check first. Remember to turn off the thermostat before beginning the fuse replacement process. What size breaker do I need for AC? It's going to completely depend on the unit that's being installed, but commonly it'll be 30-60 amp with 10-4 AWG wire. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. How much is a fuse for a AC unit? AC Fuse, Circuit Breaker...