Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Basic 2 way circuit power coming in at switch.

Two Way Switch Light Wiring
Diagram of one way switch. With these diagrams below it will take the guess work out of wiring. Switches are shown as dotted rectangles. Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. Line diagram of a one way lighting circuit using in line method fig 1. 1one way switches only have two terminals while two way switches have three. They are wired so that operation of either.
A 4 way switch has five terminals. One way lighting circuit using in line switching. The cable going to the light switch is connected as follows fig 2. The red wire from the feed cable is connected to the top terminal the red wire going to. 3 way switch wiring diagram. Take a closer look at a 3 way switch wiring diagram.
For a 4 way light circuit to work you need two 3 way switches and at least one 4 way switch. These diagrams show various methods of one two and multiple way switching. Control one bulb with help of one way switch. With a pair of 3 way switches either switch can make or break the connection that completes the circuit to the light. A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw.
After you have pulled your switch out from the wall the wires in the box and connecting to the switch should look like one of the following. Three wire cable runs between the switches and 2 wire cable runs to the light. One ground and 4 circuit terminals divided into two matching pairs called travelers. A one way light switch is quite easy to wire up. 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. 2a two way switch can be used to control a light from two locations while a one way switch cannot.
So now that you have a basic concept of wiring a 2 way switch lets look at the following 2 way switch diagrams to see which type of circuit scenario you have. The most basic circuit with only two wires at the switch. 2 way switch 3 wire system new harmonised cable colours 2 way switching means having two or more switches in different locations to control one lamp. Still the one way switch is the most commonly used switch in homes and in many applications where you want to control the flow of electricity. L and n indicate the supply. Two way switching 2 wires.
Wiring diagram 3 way switch with light at the end. This might seem intimidating but it does not have to be. 3 way switch wiring diagram depicting all wires in the ceiling junction box. Earth wires are not shown.