What Is A 2 Way Switch Wiring Diagram

Two way switches have a com terminal as well as l1 and l2 terminals.

What is a 2 way switch wiring diagram. Below is the way i like to do it. Two way switching means you can switch the same light fixture from two switches that are located in different sides of a room. There are several ways to wire two way switching. 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.

3 way switched outlet wiring. Where 0 represents the off condition and 1 represents the on condition. Two way switches and three way switches operate the same way and have the same connection points they just have different names in the uk which are common l1 and l2. 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.

A two way switch uk schematic diagram of old wire colours. For wiring a two way switch 3 core earth cable is used. Fig 2 below shows how we achieve this configuration. When l1 is off l2 would be on.

Three wire cable runs between the switches and the outlet. How to connect 2 way switch wiring using three wire control. Connect the line brown wire coming from the light together with the 3 core earth cable black wire in to the l1 terminal of the two way switch. 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.

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. Two way switching schematic wiring diagram 3 wire control the schematic is nice and simple to visualise the principal of how a two way switch works but is little help when it coms to actually wiring this up in real life. This circuit is wired the same way as the 3 way lights at this link. A 2 way switch wiring diagram with power feed from the switch light.

In the united kingdom some electricians use an alternative method for wiring two way switches as depicted in the above wiring diagram. This cable consists of three cores brown grey and black which are all line colours and an earth wire. Schematic diagram of new wire colours. This is the new method to make a 2 way switching connection as it is slightly different from the two wire control method.

The power source comes from the fixture and then connects to the power terminal. When l1 is on l2 would be off. This method is commonly used now days as it is efficient than the two wire control system. Wiring a two way switch.

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. In this diagram two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room.