Electric Switch Connection Diagram. In this updated diagram 3 wire cable runs between the receptacle and switch and the red cable wire is used to carry the hot source to the switch. Wiring light switch is first step which learn by a electrician or electrical student.
The neutral from the source is spliced through to the switch box using the white wire and in this diagram the white wire is capped with a wire nut. With these diagrams below it will take the guess work out of wiring. Explanation of wiring diagram 1 switch wiring shows the power source power in starts at the switch box.
In the diagram below right a 2 wire nm cable that connects the light fixture to the switch carries 2 line wires one line and one switched line.
In the diagram below right a 2 wire nm cable that connects the light fixture to the switch carries 2 line wires one line and one switched line. I have a outside light by the door going out of the home that is controlled by a single pole switch. The white wire carries line the black wire carries the switched line. Three way switch diagrams fully explained wiring 3way switches 3 way switches are a convenient way to operate lighting fixtures from two locations.