Simple 3 Way Switch To 2 Way
Shown below are two fixtures between 3 way switches.
3 way switch to 2 way. Each of the gangs or switches above in fig 2 of which there are three work like this fig 3. A 3 way lighting circuit is 2 circuit. Two 2 wire cables c3 and c4 run between the fixtures and a 3 wire cable c2 runs from the second fixture f2 to the second 3 way switch sw2.
In this diagram the incoming hot wire attaches to the first switch s common dark colored terminal. Two way switch can be operated from any of the switch independently means whatever be the position of other switch on off you can control the light with other switch. Converting a two way light switch to a three way light switch is a great way to solve common problems with light switching.
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 regular two way switch allows a user to turn on the lights at one location only while the three way light switch allows you to turn the lights on and off at two locations with ease. This 3 way switch wiring diagram shows how to wire the switches and the light when the power is coming to the light switch.
Two way switches are single pole single throw spst with two connection wires and are wired with 12 2 or 14 2 cable between the switch and fixture. In position 1 when the switch is down or on com and l1 are connected together just like the one way switch in position 2 when the switch is up or off com and l2 are connected together. The power source is via the switch box sb1 and a 3 wire cable c1 runs from there to the first fixture f1.
Travelers are the black and red insulated wire inside the cable go to the 2nd. If you remove it then you would only 1 circuit. The fixture s hot wire connects to the second switch s common.
If you eliminate remove the of toggle switch which by definition is call a 3 way switch because it has 3 terminal. The two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch. 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.