Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. 2 way light switch 3 wire system new harmonised cable colours 2 way switch 3 wire system old cable colours 2 way switch two wire control three way switching.
2 Way Switch Wiring Diagram Light Wiring
2 way light switch wiring uk. Two way light switches are required for two way switching these can be identified by looking at the terminals on the back of the switch. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. There is a chance that if your house has these old wiring colours the switch drops may be from a loop in loop out radial lighting circuit done with junction boxes rather than ceiling roses as shown in fig 2. Wiring a 3 way light switch. This is very useful in a number places particularly hallways and stairs. 3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control.
A two way light switch is a simple single pole changeover switch with three terminals. A commonc l1 and l2. The switch wiring is all the same but the switch wire cable c leads up to a different set up. For wiring a two way switch 3 coreearth cable is used. There will be a com common terminal a l1 terminal and a l2 terminal. The other terminal is marked as l1 and is the output to the light fixture.
This cable consists of three cores brown grey and black which are all line colours and an earth wire. A two way switch has 3 terminals. In the other switch position it changes over so that com is connected. To switch from two locations youll need 2 two way switches and wire them together in a particular way. Wiring a one way switch. Two way switching with the old wiring colours.
The common is for the live wire that supplies the input voltage to the switch. Wiring a two way switch. A one way light switch has two terminals which is a common marked as com or c. In one switch position the com terminal is connected to l1. Connect the line brown wire coming from the light together with the 3 coreearth cable black wire in to the l1 terminal of the two way switch. How to wire a one way lighting circuit in this tutorial i show how to wire a one way light switch i show how a 1 way and 2 way light switch works i explain how to wire a ceiling rose how to.
Two way switching allows you to control a light from two locations. These are typically labelled com l1 and l2 some may label the l1 and l2 positions as 1 way and 2 way.