When L1 is off L2 would be on. Remember: Always test the wires with a voltage tester to ensure there is no mains supply present before you start disconnecting them. A Two Way light switch is a simple single pole "changeover" switch with three terminals. Earth terminals are not found on plastic switch plates and plastic back boxes). If you are aware that the light switch was functioning correctly prior to replacing the switch plate, simply note the layout of the wires and copy the wiring layout in the replacement switch plate.). First, let’s recap the colours used to identify the Common Live wire, the Switched Live wire, and the Earth wire: WIRE TYPE This is the most common type of switch, and is used where a light is controlled from a single switch. There are 3 brown wires coming out of the wall and I have a 2-way switch (L1-L2-COM) which operates one central pendant light fitting. Simply strip the wire to the length specified and push the wire into the hole. Black/Red Reply to Intermediate Light Switch Wiring - L1, L2, L3, L4 vs. L1, L1, L2, L2 in the DIY Electrical Forum area at ElectriciansForums.net Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link If the wires in the back box are new, they may not be stripped. On the first switch COM is the hot leg (typically the black wire), L1 connects to L1 on the second switch, and L2 goes to L2 on the second switch as well. If the back box or the switch plate is made of metal, connect the Earth wire to the Earth wire terminal. Modern switches typically come in two varieties. L1 and L2 Motor Wiring The L symbol designation refers to the Line, or the incoming circuit wires that provide the power for the motor. In position 2 (when the switch is up or ‘off’), COM and L2 are connected together. Switched Outlet Wiring Diagram. These are typically labelled COM, L1, and L2 (Some may label the L1 and L2 positions as "1 Way" and "2 Way"). A light switch in my bedroom came loose when I was painting around it and I can't figure out how to wire it back correctly. The two way light switch wiring can be implemented by using 2 different methods. *Earth terminals are only present in metal switch plates and metal back boxes (i.e. In the other switch position it changes over so that COM is connected to L2. There was a seperate loose red wire that went into both COM's. Customer support open Mon-Fri: 9.00 - 17.00, LED Hut Donates Lighting for DIY SOS The Big Build, Creative Ways to Use LED Strip Lights in your Home, Bathrooms - Lighting Zones and Lighting Regulations, Switched Live Wire (SW) connects to L1 port, Common Live Wire (CW) connects to Common port, Earth Wire connects to switch plate/back box Earth ports (Multi-gang switches and two-way circuits require further consideration), Connect SW (blue) to the port labelled L1, Connect CW (brown) to the port labelled Common, Connect the Earth wire to Earth terminals present in both the back box and switch plate*. Where BOTH the back box and the switch plate are metal, first connect the Earth wire to the Earth terminal in the metal back box, and use a separate piece of wire to connect the Earth terminal on the metal switch plate to the Earth terminal on the metal back box. An extension of the one way switch, this has three terminals. Cable D (Fig 2) is a three core and earth, this is the ‘3 wire control’ that links the two light switches together. Get 5% off your first order - Code: first5, 4 Beacon RoadTrafford Park, Manchester, M17 1AF. Want to turn a lamp on with a light switch? For added safety, use a voltage tester to ensure that the circuit is not live and there is no power to the switch. In addition, the light switch will either be 'one-gang' (one switch on the plate) or 'two-gang' (two switches on the plate) or higher. The new switch has connectors marked COM , L1 and L2 and an earthing point. Logic would say that the 2 wires should go in COM and L1 or L2, but the problem is both wires are the same colour, and there aren't any COM or L markings on the back of the old switch. The first priority is to ascertain which lighting circuit the new switch is going to be installed on and switch off the power supply. Top 10 Tallest Buildings In The World In 2020 - No Towers In America! If a switch has failed, the switch must be replaced and rewired. L1 and COM is used on your old switch and you have those 2 connectors on your new switch. Sometimes it is handy to have an outlet controlled by a switch. A black wire (with a red sleeve) screwed to "L1" There was also an L2 with nothing screwed into it; The instructions for the new light stated for a 1 way switch with 3 wires: one wire should go to a simalar point near the rim of the fitting (which I attached the green and yellow to, as it was before), Jan 24, 18 02:26 PM. Engineering Society it's the first platform for all engineers we share good technical articles and free pdf Ebooks and free excel spreadsheets for all engineers. L1 L2 Com Wiring Diagram – wiring diagram is a simplified suitable pictorial representation of an electrical circuit. Two way switches have a COM terminal as well as L1 and L2 terminals. How to wire 2 way light switch, in this video we explain how two way switching works to connect a light fitting which is controlled with two light switches. A two way switch has 3 terminals. To switch from two locations you'll need 2 two way switches and wire them together in a particular way. Over 20 Concrete Design Excel Sheets Free Download, Two Way Switching Explained - How to wire 2 way light switch. T1 T2 T3 T4 T5 Motor Lead Wires As suggested (and as I had previously assumed) I joined the 2 neutrals in a terminal block, connected the 2 earths to the eath terminal and connected one live to L1 and the other to COM. The old switch had 2xL1's and 2x L2's 2xCOM's. Move all wires fitted to L2 to the X terminal on the Lightwave switch. You use L1 and L2 to control light from 2 switches as in head and foot of staircase. It is just a single switch light, so is it as simple as RED into COM, BLUE into L1, ignore L2 and EARTH to EARTH terminal. The L1 is the switched live going out to the light. In larger premises such as office blocks or schools where the temporary loss of mains power is likely to inconvenience many people, you may choose to identify and switch off the correct fuse at the fuse panel out of hours. 1) The switch wiring needs swapping to 'move' the landing light to the correct position. Green & Yellow. This gauge is when you want to use the "quick-connect" method when wiring a light switch. now the new switches have a COM, L1, L2 and Earth. If you are aware that a light may be controlled from two locations (e.g. Two way light switch mechanism In position 1 (when the switch is down or ‘on’), COM and L1 are connected together (just like the one way switch). We look at the EU colour coding wires and explain the different ways to connect the lighting circuit. These are typically labelled COM, L1, and L2 (Some may label the L1 and L2 positions as "1 Way" and "2 Way"). Read More. Assuming that that there is no existing light switch from which the wiring layout may be copied, we must understand which wire fits into which port based on the colour of the wires and the labels located next to each wire port on the reverse of the switch plate. What you have done is not probably conventional and might confuse someone in the future but clearly both switches are wired the same way otherwise it wouldn't work. © 2021 Supreme Imports Ltd T/A LED Hut, Registered in England and Wales under number 05292196, There are no markings on the back of the dimmer switch, and on the back of the new switch I've got 3 points -COM, L1 and L2. In this picture, you can see the strip gauge on the back of the switch. Most manufactures use Common, L1 & L2 but if it`s marked as L1,L2 & L3 then usually L1 is common. ...plus receive more exclusive offers and product updates. Move all wires fitted to C to the L terminal on the Lightwave switch. 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