Great Electrical Switch Leg Diagram

The white wire of the cable going to the switch is attached to the black line in the fixture box using a wire nut.

Electrical switch leg diagram. 3 way switch diagram 2 above shows the electricity source starting at the fixture. When using the white wire as a hot or line it must be re identified with a different color other than white gray or green. Although i m sure you ll get the idea of what a s.

The switch leg portion of electrical circuits controls the flow of electricity to lights or receptacles. Diagram 3 above shows the electricity source starting at the right 3 way switch box. The type of circuit wired for a switch depends on where electricity is delivered to the circuit.

You can avoid costly mistakes. Because the electrical code as of the 2011 nec update requires a neutral wire in most new switch boxes a 3 wire cable runs between the light and switch. Here is a standard wiring symbol legend showing a detailed documentation of common symbols that are used in wiring diagrams home wiring plans and electrical wiring blueprints.

At a switch or at the light or receptacle. This 4 way switch diagram 2 shows the power source starting at the fixture. Wiring diagrams for 3 way switches.

The white wire becomes the energized switch leg as indicated by using black or red electrical tape. This is an updated version of the first arrangement. The red and black are used for hot and the white neutral wire at the switch box allows for powering a timer remote control or other programmable switch.

Please forgive the simplicity of this animation it was done with a mouse as my pencil and bitmap drawings. Wiring diagrams use simplified symbols to represent switches lights outlets etc. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wirenut.