The basic 3 way switch wiring diagram this is the most common and the easiest wiring diagram to follow of any of the wiring diagrams for a 3 way switch circuit this wire diagram shows the wiring for source power into the first three way switch then 3 wire cable to the next 3 way light switch and then on to the light or light fixtures. Wiring diagram 3 way switch with light at the end in this diagram the electrical source is at the first switch and the light is located at the end of the circuit three wire cable runs between the switches and 2 wire cable runs to the light the black and red wires between sw1 and sw2 are connected to the traveler terminals. Option 3 fixture between two three way switches power through switch light is controlled by two three way switches with the light between the switches and the power first going through a switch then to the light and onto the second three way switch the ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. Three way switch diagrams fully explained wiring 3way switches 3 way switches are a convenient way to operate lighting fixtures from two locations electrical question how would this be wired building a new workshop that is detached from home i have a outside light by the door going out of the home that is controlled by a single pole switch. Take a closer look at a 3 way switch wiring diagram pick the diagram that is most like the scenario you are in and see if you can wire your switch this might seem intimidating but it does not have to be
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