Branch Circuit Wiring Diagram. This photo is an example of a multiwire branch circuit preferred wiring diagram. Both 120 volt and 240 volt branch circuits can vary in the amount of power they deliver a quantity measured by amperage.
Wiring for two 20 amp 120 volt circuit breaker. A 15 amp circuit is usually used for wall receptacle outlets and room light fixtures. Branch circuit amperage.
Why are multiwire branch circuits used.
Multiwire branch circuits can offer fewer conductors reduce the raceway size and reduce voltage drop. Receptacle ground connection diagram shown separately. See example diagrams below. This wiring diagram illustrates installing a 15 amp circuit breaker for a 120 volt branch circuit.