If we flip switch number one, the circuit will be broken and the light will turn off. If the second switch is in the “OFF” position, then the light will be off, it’s in the “ON” position, then the light will come on.Īfter the light came on, electricity comes back through the neutral ( white) wire. The two-wire cable between the second switch and a light fixture.Įlectricity in this circuit travels through the hot wire across the first switch and through the traveler wire to the second switch.Two-wire cable as an electricity source.You can download the PDF file here to see more details. On the other hand, if one switch will be “ON” and others will be “OFF” then electrons will be flowing (the path will be closed and the bulb will glow). If both switches are in the same positions (like both are “ON” or both are “OFF”), then there will be no flow of electrons (the path will be open and the bulb will not glow). The ground wire is used for safety purposes. Step 5: Ground wires connect with the ground ( green) terminals of both switches and also with the bulb ground fitting terminal (or common all ground terminals through green wires).Step 4: Connect the incoming white (neutral) wire to the other light fitting terminal.Step 3: Connect the common ( black) terminal of the second switch to the bulb through the ceiling box.It doesn’t make any difference if it’s in parallel or in cross positions. Step 2: Use black and red wires to connect traveler (or brass-colored) terminals of the first switch and the second switch.Step 1: Connect live (or a hot wire) to the common (or black) terminal of the first switch.Here is a schematics in PDF format and a step-by-step process of connecting the wires with power at the switch: Light after switches (power at the switch). The electricity source and light are in between switches.ĭiagram #1.The electricity source and light fixture are connected to the same switch.The power source is coming to light fitting first. The power source is coming to a light switch first. The diagrams for 3-way switch wiring I broke down into the following sections (see below): It is also a good idea to watch some videos prior to installation to avoid unnecessary problems.īefore we get to wiring diagrams, here is how the 3-way switch terminals are color-coded:Īnd this is what you will need for 3-way switch wiring: Wiring your 3-way switch should not be complicated if you have diagrams that you can use (you may want to print some out as well). FOR MORE INFORMATION, PLEASE READ MY EARNINGS DISCLAIMER. THIS POST CONTAINS AFFILIATE LINKS THAT WILL REWARD ME MONETARILY OR OTHERWISE WHEN YOU USE THEM TO MAKE QUALIFYING PURCHASES. 3 Way Switch Wiring Diagrams DISCLAIMER: AS AN AMAZON ASSOCIATE I EARN FROM QUALIFYING PURCHASES.
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