This wiring diagram illustrates adding wiring for a light switch to control an existing wall outlet. The switch leg is controlling the bottom half of each split receptacle outlet.
How To Wire A Light Switch Smartthings
Electrical switch leg diagram. There are two methods for wiring a basic onoff single pole standard duty switch to a light or a set of lights. The old method of a 2 wire drop is explained along with the current code requirements of using a 3 wire cable. The switch leg is still made up of two wires but the hot wire connects directly to the switch and the two wires connect directly to the outlet. This is common when multiple switches in one wiring box control different outlets on the same branch circuit. The switch leg drop. Fully explained pictures and wiring diagrams about wiring light switches describing the most common switches with photo diagram 2.
Electrical current is sometimes delivered to the switching point. 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. The black wire from the switch connects to the hot on the receptacle. The source is at the outlet and a switch loop is added to a new switch. A three conductor cable is used to bring the hot wire the switch leg and the neutral conductor to the outlet on the right. This article explains the two most common methods for wiring a basic light switch.
3 way switch wiring diagram part 1 3way switch wiring diagrams 1 2 and 3 the key to three way switch wiring depends on two main factors. Although im sure youll get the idea of what a switch leg is. Power to switch then to light or lights. This is an updated version of the first arrangement. 3 way switch wiring diagram part 2 3way switch wiring diagrams 4 5 and 6. Please forgive the simplicity of this animation it was done with a mouse as my pencil and bitmap drawings.
Notice that these outlets have the tab removed from the hot side or brass side of the outlet which allows the top half of the plug to be controlled only from the switch while the bottom end of the outlet remains hot all the time. The hot source wire is removed from the receptacle and spliced to the red wire running to the switch. The diagram below shows the power entering the circuit at the grounded outlet box location then sending power up to the switch and a switched leg back down to the outlet. This entry was posted in indoor wiring diagrams and tagged do it yourself handyman handywoman home electrical home improvement home renovations home wiring house wiring how to wire a light switch light light switch power switch switch leg wiring wiring diagram. This shows wiring a light switch when the power comes into the light outlet first. These wiring diagrams help you identify the power feed and the switch leg leading to the fixture.
The required grounding conductor is not shown in order to keep the diagrams simple. 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.
Gallery of Electrical Switch Leg Diagram
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