For example, a circuit with 4 switches controlling one fixture... not uncommon in large rooms with multiple access points... there are two 3-way switches and two 4-way switches. Hi I have a two way switch controlling a landing light. Flip switch1 the electricity flows from switch1 over to switch2 and return back to switch1 and light gets turned ON. Alternative Method of Two Way Switch Wiring. at least in house wiring, is what in the industry is called an SPDT switch. For example: turning a light on or off from either end of a flight of stairs. Cable D – Tree core and Earth connecting the two two way light switches. Fig (a) is the two way light switch mechanism, fig (b) is the single gang switch face and fig (c) is the single gang two way light switch. Identifying the travelers at each switch is done by finding the continuous hot wire at one switch and then discovering the wire at the other switch that goes to the light fixture. Similarly, the light is ON when the first switch COM terminal is connected with the L2 terminal and the second switch COM terminal is connected with the L1 terminal. eg. Now, take a live wire and connect it to the common terminal of switch1 (left hand side) and take another wire from common terminal of the switch2 (right hand side) and connect it to a lamp. Touch the probes to the 3 wires removed from the switch until you get a reading on the tester indicating continuity. Finally connect the blue wire from terminal L1 of switch1 to back to light fitting again placing brown sleeve at each end. If the top switch is used to turn the light on, the top switch must be used to turn the light off, the bottom switch will not work. The live is in L1 and the neautrals in L2. Finally complete the circuit by connecting terminal L2 of switch1 to the lamp. Four-Way Switch. We have two three-way switches (we think) at either end of our hallway. In between the two switches, the two lines are called, . The first way of wiring uses a couple of Two-Way Light Switches with a 3-wire control. Connect the common terminal of the both switches 1 and 2 using another wire. The US terminology used in this explanation. The first method as shown in the figure above have the COM, L1 and L2 of both the SPDT switches connected together. The US terminology used in this explanation. Tags: 2 way switch; light not working; wiring; Page 1 of 2 1 2 Next > Blue_aro New Member. You have entered an incorrect email address! And we’re guessing that you’re in a dilemma about choosing between these two options. If you look inside an existing wired in two way switch you will see quite a few wires of differing colours. Obviously this means going back up/down the stairs which is becoming a pain. If you have several light switches or light fixtures that are not working then there may be a short in the electrical wiring, or most likely a loose connection has developed. A four-way switch is similar to a three-way, except it has four terminals (plus a … These circuits are designed using switches known as 4-way switches between the two 3-way switches. The one gang two-way switch is used when two switches control the single bulb. The electrical symbol indicates where power enters the circuit. The term for the pair of wires connecting the two switches also … What is Two way Light Switch? A 2-way switching connection means you can control electrical equipment like bulb by two switches placed at different places, generally used in the staircase. Steps: Scott first gives an explanation of the three-way switch- two switches that control one light fixture. The two-wire control two-way switch mostly will find in some of the industrial settings and old homes. Run the black wire of common terminal between switch1 and switch2. Users must know how wires cross and work together to create simultaneous lighting. Image Credit: https://www.youtube.com/watch?v=opoEswRp_jg. The following article will show you how to install a simple two-way electrical switch. A two way switch has 3 terminals. When the switch is in off position then the circuit is said to be open circuit. A 1 gang switch will control a single lighting circuit, and with a 2 gang switch you can control two lighting circuits, and so on. Write CSS OR LESS and hit save. Steps: Scott first gives an explanation of the three-way switch- two switches that control one light fixture. A two way switch is a switch which can help shift a load on or off from two different locations. Here is a question for you, how does a Double Pole Double Throw switch works? Let’s control the light fitting by using the two way switch connection. Let start with the basic idea of the light switch in an electric circuit. In the UK they refer to two-way switch and cross over switch. The two-wire control two-way switch is shown in the below figure. This operation usually requires SPDT switches and there may be several basic methods and systems of wiring in order to achieve this. Run the live wire connect in terminal L2 of switch1. Now take another wire and joint L1 in switch1 and L2 in switch2. The L2 terminals of both the switches are connected to one terminal of the light bulb while the other terminal of the light bulb is connected to neutral of the AC power supply. When a white wire is attached to a 3-way switch a tester may not read the power because of the position of the other 3-way switch. This kind of switch is used where there is a requirement of two switches to switch off a single light. the status of the light is off, but the light turns on when the switch is toggled. In the above schematic diagram, the status of the light is off, but the light turns on when the switch is toggled. 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. If you are trying to troubleshoot a 3-way switch operation, you will need to identify the function of each wire. This operation usually requires SPDT switches and there may be several basic methods and systems of wiring in order to achieve this. The switch is on when the COM terminal and L1 terminals are connected and the switch is off when the COM and L2 terminals are connected. One three way switch is by itself and the other is in a 4 gang box. A two-way light switch requires a three-way cable (three wires plus ground--four conductors in all) to be run in order for the light to be switched from any station. A two way switch has 3 terminals. 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