Fun Installing A Light Switch With 3 Wires
Turn the power back on and turn the switch on.
Installing a light switch with 3 wires. Either way complete these five steps for 3 way light switch wiring. 3 way circuits can vary depending on the method used at the time the home was wired. The following is the simple schematic of a three wire 2 way switch wiring.
The l1 terminals of both the switches are connected to line or phase or live of the ac supply. A three way light switch is one where you have two switches that have the ability to control the same light or set of lights. With the power off connect the black hot wire to the old switch.
It s likely you ll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch. Connect either of the other two black wires to the other screw on the switch. Installing c by ge smart switches on a 3 way or multi way circuit requires all switches on the same circuit to be a c by ge smart switch.
The light will either turn on or it won t. Therefore the 2 switches the light 3 way. You can observe in the schematic that both the com terminals are connected together.
Turn off the correct circuit at your electrical panel. There will be an additional wire needed often red to connect the switches together to a dedicated screw or input on the switch that is specifically marked for this purpose. The first way of wiring uses a couple of two way light switches with a 3 wire control.