Sensational Wiring A 3 Way Switch As A 2 Way
This is the 3 wire cable which you must have to wire a 3 way light switch.
Wiring a 3 way switch as a 2 way. Turn off the correct circuit at your electrical panel. 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. From there a 3 wire cable 2 travelers a ground and the re identified white wire or a.
This method is commonly used nowadays as it is efficient than the two wire control system. You would use one of the dark colored screws with one of t. The wiring method will depend on whether your power goes to the switch first or the light first.
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. A 3 way switch allows you to turn a light on or off from two different 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.
As you can see in the schematic diagram of 2 way switch circuit below the common of both the switches are short circuited. A three way wall switch is single pole double throw spdt with three connection wires and is typically wired with 12 3 or 14 3 cable between the two switches. How to connect 2 way switch wiring using three wire control.
You can observe in the schematic that both the com terminals are connected together. The first way of wiring uses a couple of two way light switches with a 3 wire control. 3 way switches are useful for large rooms with multiple entrances but require a bit more wiring than a standard single pole switch.
The following is the simple schematic of a three wire 2 way switch wiring. Run new cable romex between the 3 way switches. A variation of the above three way and 2 way switch wiring is to bring all of the cables into one wall switch box as depicted in the diagram below and branch off from there to each switch and light fixture.