Electrical Breaker Wiring Diagram
Many low voltage circuit breakers lvcbs and virtually all medium voltage metal clad circuit breakers use electrically operated mechanisms.
Electrical breaker wiring diagram. A wiring diagram is a streamlined standard pictorial depiction of an electric circuit. Variety of square d breaker box wiring diagram. The white wire is used for hot in this circuit and it is marked with black tape on both ends to identify it as such. This overview assumes that the electrical panel is installed on the wall of a utility area near where the main feeder wires come into the home and that all branch circuit wiring cables and conduit runs are already installed.
A neutral wire is not used in this circuit. Disconnect circuit interrupter circuit breakers w thermal ol circuit breakers w magnetic ol limit switches foot switches pressure vacuum switches liquid level switches temperature actuated. The diagram symbols in table 1 are used by square d and where applicable conform to nema national electrical manufacturers a ssociation standards. Schematic diagrams are required for the setup and operation of common circuit breakers from oems such as abb ite general electric and westinghouse cutler hammer.
The 12 2 gauge cable for this circuit includes 2 conductors and 1 ground. This circuit breaker wiring diagram illustrates installing a 20 amp circuit breaker for a 240 volt circuit. In a new home construction or a rewiring project the last step will be connecting all the wires to the circuit breaker box which is what this article describes.