Double Pole Circuit Breaker Wiring

This wiring diagram illustrates installing a 15 amp circuit breaker for a 120 volt branch circuit.

Double pole circuit breaker wiring.

A 15 amp circuit is usually used for wall receptacle outlets and room light fixtures. In addition these heavy duty breakers have two incoming wires rather than the single wire for standard breakers. Circuit wiring that connects to double pole breakers contains two hot wires. Make sure the wire is gauged well in order to support the amperage of the breaker.

Double pole breakers snap onto two poles for a total of 240 volts. Do this until you expose the bare copper wires. That means if there s a short circuit on either of the poles hot wires both trip. Double pole breakers have two hot wires that are connected by a single neutral wire.

First of all switch off your incoming supply breaker and if your incoming supply have no breaker and your are gonna to instill first breaker then connect first the out going supply wires to breaker and then connect the incoming supply carefully as shown in the below image diagram. Method of wiring of double pole circuit breaker with diagram. When single pole breakers are installed they snap into one pole to receive 120 volts. These breakers can be used to serve two separate 120 volt circuits or they can serve a single 240 volt circuit such as your central ac s circuit.

Double pole breakers are twice as wide as standard breakers and attach to both of the 120 volt hot bus bars in the service panel. Take the wire of the double pole circuit breaker. Wiring for a 15 amp 120 volt circuit breaker. Using a wire cutter or a wire stripper strip the wires off inch of insulation from the black red as well as the white wires you find.