Glory 3 Wires In A Light Switch

The old switch was attached with two blacks inserted into the back of the switch.

3 wires in a light switch. A three way switch is different. In my world two wires in a switch circuit taped the same odd color are always 3 way travelers. But in that box there are 3 sets of.

An example of this would be having one switch at the bottom of a staircase one at the top and one in the middle. Of the three black wires only one of them is hot. There will be another 3 way switch somewhere also with those same two wire colors going to its traveler terminals.

In one position the com and l1 are connected while in the second position the com and l2 are connected. This circuit is wired the same way as the 3 way lights at this link. Intermediate switching is similar to two way but allows a third switch to be integrated.

It s not known as three way switching because you can also add more switches for four way switching or more. In this diagram two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room. This is a typical wiring setup for a 3 way light switch with black white red and ground wires.

This type of switch lets you turn the light off or on from more than one place in the room. It looks like the previous owner of this house just put putty over the other half. Three wire cable runs between the switches and the outlet.

Com on the first switch connects to com on the second switch l1 on the first switch connects to l1 on the second and l2 on the first switch connects to l2 on the second. The switch mounting box is made for a double light switch but only has 1 switch mounted in it. An example of a 3 wire lighting circuit is shown in figure 2.