Hook up switch to light, wiring a 2-way switch
To replace this kind of switch, follow these steps:. Unscrew the switch from the electrical box and pull it out with the wires still attached.
Now by understanding the diagram above, go up to the top diagram and by using the concept shown here, just use your mouse pointer on that diagram and follow the flow from black wire hot wire to the load and return through the white wire neutral.
Wiring a three-way light switch Wiring of 3-way light switches is certainly more complicated than that of the more common single-pole switch, but you can figure it out if you follow our either of our 3-way switch wiring diagram.
Because the power is off, you can match up the connectors the easy way: The wiring is more complicated than a traditional single-pole switch, but we'll explain how to make the connections. Two or three wires will be attached to the switch: The green or bare copper ground wire, if the device has one, attaches to the hook up switch to light screw terminal on the switch or to the electrical box.
Either way, complete these five steps for 3 way light switch wiring:. You can easily loosen the screws on the side of the device with a standard screwdriver turning counterclockwisebut you may find getting the wires out of the back of the device tricky.
The white neutral wire connects to the silver screw, or you place it in the back wire hole on the same side of the device as the hook up switch to light screw. By wiring a 2-way switch, The circuit below shows the basic concept of electricity flow to the load.
Attach the first wire you unscrew to the same-colored screw on the new switch as it was on the old; do the same with the second. Turn off the correct circuit at your electrical panel. Now a typical circuit will contain a 3-wire cable known as romex.
The cable consist of a black wire, a white wire and a bare copper wire.
After you have pulled your switch out from the wall, the wires in the box and connecting to the switch should look like one of the following. This simple diagram below will give you a better understanding of what this circuit is accomplishing. Unscrew and remove the switch plate; then use a voltage tester to make sure that the circuit is dead. You have an incoming hot wire black going to one screw it does not matter if you use the brass or silver screw on the side of the 2-way switch and a black wire from the other screw on the 2-way switch going to the load light, ceiling fan etc.
Avoid last-minute shopping trips by having all your materials ready ahead of time. The Green screw on the 2-way switch is for the ground so all ground wires should be connected as seen below. The black hot wire goes to the brass screw or into the hole in the back of the device on the same side as the brass screw.
Wiring a three-way light switch
This 3 way switch diagram shows how to wire the switches and the light when the power is coming to the light switch. A, also wrap black tape around the white wire from the switch to the light. Keep reading the 3 way switch wiring diagram to learn light switch wiring.