Two Way Switch Circuit

The second common way to control a light with two switches is to convert a one way switch circuit to a two way.

Two way switch circuit. Three way switching 3 wires. To switch from two locations youll need 2 two way switches and wire them together in a particular way. How to wire a 2 way lighting circuit in this video i show how to wire a light that can be turned on and off with two different switches. The three terminals are usually named com l1 and l2 but sometimes com 1 way and 2 way are also used.

Two way switching 3 wires. 2 way switching means having two or more switches in different locations to control one lamp. The other end of the lamp is connected with neutral line of ac power supply. Two way switch wiring the com l 1 and l 2 are the three terminals of the two way switch.

Before proceeding an important component called a two way light switch is the main element of the 2 way switching irrespective of the type of wiring used. The l1 terminals of both the switches are connected to phase and l2 terminals of both the switches connected to one end of the bulb terminal and the other end of the bulb terminal are connected to neutral of the ac supply. They are wired so that operation of either switch will control the light. So we run the live wire into terminal l1 of switch 1.

This arrangement is often found in stairways with one switch upstairs and one switch downstairs or in long hallways with a switch at either end. These are typically labelled com l1 and l2 some may label the l1 and l2 positions as 1 way and 2 way. I use simple elect. This is also known as the conversion method since it is the easiest way to add a second light switch to an existing circuit.

We again need two switches and you need to check the back to ensure they have 3 terminals on each. In position 2 when the switch is up or off com and l2 are connected together. Twin earth from the ceiling rose to the first switch and three wires between the switches usually 3 core and earth cable. The next length of the twinearth cable will run from the light to the first two way switch.

In the other switch position it changes over so that com is connected to l2. More common in domestic properties. If your one way switch only has two terminals then you ll need to replace this. A two way light switch is a simple single pole changeover switch with three terminals.

It is a standard single pole switch with three terminals. As you can see in the schematic diagram of 2 way switch circuit below the common of both the switches are short circuited.