This light switch wiring diagram page will help you to master one of the most basic do it yourself projects around your house. Switch wiring allows a circuit to be disrupted and stop the flow of electricity to a particular location.
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Ac light switch wiring. The switch has a black wire and a white wire attached to it and the wire appears to be running up the wall toward the light fixture. Hey doing it yourself is great but if you are unsure of the advice given or the methods in which to job is done dont do it. Wiring a single pole light switch. At the light the white wire connects to the neutral terminal and the black wire connects to the hot. Switch wiring shows the power source power in starts at the switch box. Circuit electrical wiring enters the switch box the black wire power in source attaches to one of the switch screw terminals fixture wiring exits the switch box.
The neutral wire from the source is spliced to the white cable wire and continues on to the light. Yes there are a few read very very very few switches that dont require a neutral but those will limit you to incandescent only. This site is merely. The hot wire in a 120 volt residential ac circuit usually is coated with black insulation while the return or neutral wire is white. If you are extending a circuit from an existing receptacle outlet to power light fixtures wired through a double switch box you will need to install a double switch box then run nm cables from the feed outlet location to 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.
If you are preparing to wire a circuit always turn off the power to that particular circuit at the main panel. Wiring a light switch with the power coming to the switch and then going to the lights you will notice that there are two black wires two white wires and two ground wires bare wires. Another nm cable connects from the light fixture box to the switch box. First of all we should connect the ground wires to the box. Then youll run additional cables from the switch box to wherever the light fixtures are located. The source hot wire is connected to a switch terminal and the other terminal is connected to the black cable wire.
A single pole single throw switch such as a light switch. With alternate light switch wiring an nm cable supplies line voltage from the electrical panel to a light fixture outlet box. Switches are installed along the hot wire and are what allow lights fans and outlets to be turned on and off. The most common requirement of any hardwired automated light switch is a neutral wire. Assuming it is a steel box. For those of us using led fluorescent or some other energy efficient bulbs under 20w a neutral is required.
Gallery of Ac Light Switch Wiring
