Great Connecting 3 Way Switches

It s a foolproof way for a proper.

Connecting 3 way switches. With these diagrams below it will take the guess work out of wiring. How to determine the correct wires to attach to a 3 way switch when the wire and screw terminal color code is not certain. Interested in a 4 way switch wiring diagram.

Three way switch wire connections. So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. First run a 2 wire cable from the wall power to the black screw on 1 of the switches.

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. Run new cable romex between the 3 way switches. White black and red plus a bare ground wire.

Regardless of what 3 way switch wiring diagram you re following you ll need to use a 3 wire cable to connect the two 3 way light switches. All switches have screws on the side but some also come with push fitting holes or slots to slide the wire into. Converting a single pole switch to a 3 way 1 run a black wire from the new switch to the power source.

Then connect the 2 switches by splitting the 3 wire cable apart and attaching each of the 3 wires to one of the other 3 screws on each switch. Take a closer look at a 3 way switch wiring diagram. The switch may also have several ways to make the wire connections.

This is the 3 wire cable which you must have to wire a 3 way light switch. Connect the wires to the new 3 way switches with ground screws using one of the two wiring diagrams fig. Use the black wire in the top 2 wire conductor to attach the switch to the source.