Three Way Light Switch Wiring Diagram. A circuit is usually composed by several components. 3 way switch wiring diagram.
Install the three way switch by routing the black wire that goes into the box under the dark screw on the bottom of the switch and the redblack wire traveler wire under the brass screws on the top of the. The first component is symbol that indicate electric element in the circuit. Low voltage lights may also require special dimmers.
The black hot wire connects to the far right switchs common terminal.
Pick the diagram that is most like the scenario you are in and see if you can wire your switch. In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. Another way to wire a three way switch is when supply comes at the switch goes to the fixture and terminates at the other switch. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together.