Schematic 2 Way Light Switch Circuit Diagram

A 2 way switch wiring diagram with power feed from the switch light.

Schematic 2 way light switch circuit diagram. The way i show allows you to fairly easily add a second two way switch to an existing light switch by simply wiring them together in a certain way. 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. Variety of 2 way switch wiring diagram. The other end of the lamp is connected with neutral line of ac power supply.

This 3 way light switch diagram shows 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. Three way switches allow for controlling a light fixture from two separate locations these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room. For simplicity the earth wire is not shown in the above diagram. You will see that there is a hot wire that is then spliced through a switch and that then goes to the hot terminal of the light.

As you can see in the schematic diagram of 2 way switch circuit below the common of both the switches are short circuited. The power source comes from the fixture and then connects to the power terminal. This should give you a good basic understanding how the 2 way switch circuit works and will help you in adding or changing a 2 way switch. It reveals the parts of the circuit as streamlined shapes as well as the power and also signal links between the devices.

Schematic diagram of new wire colours. A two way switch uk schematic diagram of old wire colours. So now that you have a basic concept of wiring a 2 way switch let s look at the following 2 way switch diagrams to see which type of circuit scenario you have. Pin1 of both the switches are connected with the phase or live wire and pin2 of both the switches are connected with the one end of the lamp.

Two way switching wiring diagram two way light switching 3 wire system new harmonised cable colours showing switch and ceiling rose wiring.