240 Breaker Wiring. On each half of the breaker there will be a terminal for connecting the end of one of the hot wires and a screw to secure it. This wiring is for a 30 amp circuit breaker serving a 30 amp 240 volt receptacle.
On each half of the breaker there will be a terminal for connecting the end of one of the hot wires and a screw to secure it. It could also be red white and bare. It should not be attempted except by the most experienced DIYers and recent rules about GFCI and AFCI make it problematic.
The standard 15- or 20-amp circuit breakers work by clipping onto one of the buses.
On each half of the breaker there will be a terminal for connecting the end of one of the hot wires and a screw to secure it. A typical 240-volt 30-amp circuit includes a double-pole circuit breaker which has two terminals for the two hot wires. The above diagram is a complete method of single phase motor wiring with circuit breaker and contactor. This wiring diagram illustrates installing a 50 amp circuit breaker for a 240 volt circuit.
