Three way switch to outlet diagram. For example this allows lighting in a hallway stairwell or large room to be controlled from multiple locations. Here two 4 way and two 3 way switches are used to control lights from four different locations. This diagram sh ows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit. In building wiring multiway switching is the interconnection of two or more electrical switches to control an electrical load often but not always lighting from more than one location.
On the power coming in from the panel you would connect that black wire to the one black screw. I have a 112vac circuit in my house which switches on or off from 5 different locations. If you are replacing an existing 3 way switch. Making them at the proper place is a little more difficult but still within the capabilities of most homeowners thats where understanding a wiring diagram can be of help.
However on each 3 way switch you have a black screw this is the special one. Although a 3 way is one of the hardest electrical circuits to figure out its also one of the most useful. When replacing an existing 3 way switch take note of how the existing switch is wired before you remove the wiring then refer to your notes to help you wire the new 3 way dimmer switch. Note that this configuration is easiest to do when utilizing the first method of 3 way circuits discussed previously in our wiring a basic 3 way switch article or diagram.
Article summary wiring the switches installing the switches and light alternative wirings understanding common cable types community qa references a 3 way light switch allows you to control a light source from two separate points. A three way switch for either 12vdc or 110vac is not a complex problem. Wiring a three way light switch is not a particularly difficult task there are only 3 connections to be made after all. Transform any home into a smart home with the ge z wave wireless lighting control three way dimmer kit.
Many manufacturers are now producing dimmer switches that can be used for either single pole or 3 way switches. Im not sure i understand this. The source is at sw1 and the hot wire is connected to the common terminal.