The new switch has connectors marked COM , L1 and L2 and an earthing point. Basically is the existing blue wire essentially a "switched live" like the instructions talk about or do I need a different type of switch to work with the old wiring? At the first switch, move all wires fitted to L1 to the L terminal on the Lightwave switch. The wiring in just one feed, red is providing the live feed in and black is routing back to the rose to the connection with the light fitting wire … Unscrew the switch plate, pull it towards you slowly and examine how many wires are present and what colour they are. Intermediate. 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. For example: L1 and L2 indicate that the motor voltage may be 240 volts. Get 5% off your first order - Code: first5, 4 Beacon RoadTrafford Park, Manchester, M17 1AF. To wire a light switch, consider whether the circuit is ‘one-way’ (one light switch operating one light) or ‘two-way’ (two light switches operating the same light). A common(C), L1 and L2. There is never a connection betweeen L1 and L2. This gauge is when you want to use the "quick-connect" method when wiring a light switch. Blue In one switch position the COM terminal is connected to L1. NEW COLOUR When dealing with both a plastic switch plate and plastic back box, the Earth wire may be terminated inside the wire’s protective insulation sleeve and folded over. 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 design is a "break before make" type, such that the connection to the first terminal is disconnected before the connection to the new one is made. 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. A two way switch has 3 terminals. Earth terminals are not found on plastic switch plates and plastic back boxes). Connect the light between the adjusted AC output and Neutral. If the wires in the back box are new, they may not be stripped. L1 and COM is used on your old switch and you have those 2 connectors on your new switch. Now you can operate the light either on or off from either switch. All Rights Reserved. Either way, it does not matter which wire is connected where. Switched Live The (L2) terminal is unused. This is an overview of how to wire a one-gang light switch on a one-way circuit: 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 … Sometimes it is handy to have an outlet controlled by a switch. The old switch had 2xL1's and 2x L2's 2xCOM's. Red Cable D (Fig 2) is a three core and earth, this is the ‘3 wire control’ that links the two light switches together. L1 and L2 are "Line 1" and "Line 2" (so HOT and NEUTRAL of the AC line). There are various labelling schemes but L1, L2, L3, L4 is common. Simply strip the wire to the length specified and push the wire into the hole. My new switch doesnt have a COM, just L, L1, L2. If the back box or the switch plate is made of metal, connect the Earth wire to the Earth wire terminal. If you notice any copyright material please contact us immediately at DMCA form and point out its URL. You use L1 and L2 to control light from 2 switches as in head and foot of staircase. These are typically labelled COM, L1, and L2 (Some may label the L1 and L2 positions as "1 Way" and "2 Way"). L1 is off when L2 is on and vice versa depending on the switch position. One is an older method, which is not often used now-a-day… 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. Using a wire stripper, remove up to ½ inch of the wiring insulation, exposing the wire beneath. (Tip: the plate will be attached to up to three wires. Jan 24, 18 02:26 PM. The two way light switch wiring can be implemented by using 2 different methods. Both of the methods used are described below. OLD COLOUR Just ignore the L2 terminal. Top 10 Tallest Buildings In The World In 2020 - No Towers In America! Black/Red There are switches in which wiring must be held in place by a screw, and there are ‘plug-in’ style switches where wiring is held in place by a sprung push-button release mechanism. 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. It shows the components of the circuit as simplified shapes, and the capability and signal links along with the devices. Im changing my light switches.... its a 2 button switch and the wires coming out of the wall are 2 cables each with 1 red wire and 1 back so 4 in total plus earth's. First, let’s recap the colours used to identify the Common Live wire, the Switched Live wire, and the Earth wire: WIRE TYPE The L1 is the switched live going out to the light. This is the HOT OUT (the dimmed output). Also asked, what is l1 and l2 on a light switch? This is the most common type of switch, and is used where a light is controlled from a single switch. A two way switch (for switching a light from two different locations like in a hallway) has a common (C) a L1 and an L2 terminal. Wire a Switched Outlet. There are a couple of ways in which you can make a two-way switch connection. The red and black are used for hot and the white neutral wire at the switch box allows for powering a timer, remote control, or other programmable switch. Read More. There was a seperate loose red wire that went into both COM's. ...plus receive more exclusive offers and product updates. L1 and L2 are never connected together. For added safety, use a voltage tester to ensure that the circuit is not live and there is no power to the switch. Two way switches have a COM terminal as well as L1 and L2 terminals. Step by step instructions on how to wire a switched outlet. To switch from two locations you'll need 2 two way switches and wire them together in a particular way. 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 Common Live This is an overview of how to wire a one-gang light switch on a one-way circuit: First, we must identify a one-way light switch. Over 20 Concrete Design Excel Sheets Free Download, Two Way Switching Explained - How to wire 2 way light switch. Make sure mains is off from consumer unit before doing the work. An extension of the one way switch, this has three terminals. Earth The light connects to COM on the second switch and the other side of the light goes to neutral (typically the white wire). Used where two switches control the same lighting. Green & Yellow These are typically labelled COM, L1, and L2 (Some may label the L1 and L2 positions as "1 Way" and "2 Way"). 120V 240V Electricity explained - Split phase 3 wire, Convert Sea Water to Fresh Water, Why we need to - isave filter salt water, Bamboo is the Best Alternative to Steel Reinforcement, How to derive formula for super elevation of road bending. Where should the live and neutral wires go? When installing the Brilliant Control in 3-way configurations, the traveler wires will be installed in the wire holes labelled “L1” and “L2”. The first priority is to ascertain which lighting circuit the new switch is going to be installed on and switch off the power supply. At the second switch move all wires fitted to L1 to the L terminal on the Lightwave switch. Wiring a Two Way Switch Two way switching means you can switch the same light fixture from two switches that are located in different sides of a room. Green & Yellow. Registered office at 4 Beacon Road, Trafford Park, Manchester, United Kingdom, M17 1AF - VAT NO : GB 927 173 808. Because the electrical code as of the 2011 NEC update requires a neutral wire in most new switch boxes, a 3-wire cable runs between the light and switch. Most manufactures use Common, L1 & L2 but if it`s marked as L1,L2 & L3 then usually L1 is common. Note that L1 and L2 are never connected together. 1) The switch wiring needs swapping to 'move' the landing light to the correct position. If you look inside an existing wired in two way switch you will see quite a few wires of differing colours. A Two Way light switch is a simple single pole "changeover" switch with three terminals. © 2021 Supreme Imports Ltd T/A LED Hut, Registered in England and Wales under number 05292196, 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. *Earth terminals are only present in metal switch plates and metal back boxes (i.e. A two way switch (for switching a light from two different locations like in a hallway) has a common (C) a L1 and an L2 terminal. Remember: Always test the wires with a voltage tester to ensure there is no mains supply present before you start disconnecting them. As I have already mentioned in the introduction paragraph, a two way switch is very useful in staircase lighting as you can turn on the light just before you start to climb the stairs and once you reach upstairs, you can turn off the light simply by toggling the switch placed near the top of the staircase. 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. In position 2 (when the switch is up or ‘off’), COM and L2 are connected together. Jan 24, 18 02:09 PM The yellow/green is earth but not on new plastic switch and can connect onto the back metal box. 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. 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 you are aware that a light may be controlled from two locations (e.g. In one position L1 connects to L3, L2 connects to L4. Switched Outlet Wiring Diagram. 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. Now that you'er familiar with some of the wires you'll be identifying, you can figure out which wire is which based on the type of switch you have installed. They will be marked so you can tell which is which. Next, look at the reverse of the the new/replacement switch plate and identify the wire terminals labelled ‘Common’ and ‘L1’ (an additional L2 port may be found next to the L1 port on some units intended to be used as a single switch - the L2 port is used in wiring two-way circuits and may be ignored when wiring a one-way circuit). 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. 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. 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). So simply remove the wiring from the side that is currently switching the landing switch and replicate it in the side that is currently switching the loft light, i.e. Want to turn a lamp on with a light switch? When the switch is on, both terminals are connected together. The first method as shown in the figure above have the COM, L1 and L2 of both the SPDT switches connected together. L1 L2 Com Wiring Diagram – wiring diagram is a simplified suitable pictorial representation of an electrical circuit. You can use a two way switch for one way switching. 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. COM on the first switch connects to COM on the second switch, L1 on the first switch connects to L1 on the second, and L2 on the first switch connects to L2 on the second. For example: L1 and L2 … Move all wires fitted to L2 to the X terminal on the Lightwave switch. We look at the EU colour coding wires and explain the different ways to connect the lighting circuit. 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), In this picture, you can see the strip gauge on the back of the switch. now the new switches have a COM, L1, L2 and Earth. Move all wires fitted to C to the L terminal on the Lightwave switch. The tilde with the arrow through it symbolizes the adjusted AC. A two way light switch can also be used in in place of a one way light switch, in this instance the red wire from the feed cable is connected to the common (C) terminal and the red wire going to the light is connected to the (L1) terminal. . one light switch located at the foot of a stairwell and another located at the top of the stairs) the circuit can be immediately discounted as a single switch circuit. Connect the "source" wire to the bottom terminal of the switch and the other black wire to the top terminal. Brown Move all wires fitted to C to the X terminal on the Lightwave switch. Modern switches typically come in two varieties. Typically, these terminals will be marked COM and L1, or sometimes L1 and L2. 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. When L1 is off L2 would be on. If a switch has failed, the switch must be replaced and rewired. This website is in compliance with the Digital Millennium Copyrights Act. For increased reliability, we recommend using the screw variety of switch plate. T1 T2 T3 T4 T5 Motor Lead Wires In one position, COM and L1 are connected just as in the one way switch. This is via an MCB (miniature circuit breaker) located in the mains consumer unit in more modern homes. 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. I'm not quite clear which is 'COM' here. This can be confusing. 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.). 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*. fig 3 . These have four terminals and are equivalent to two 2-way switches combined. A Two Way light switch is a simple single pole "changeover" switch with three terminals. 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. 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. In the other switch position it changes over so that COM is connected to L2. Move all wires fitted to L2 to the X terminal on the Lightwave switch. In the other position, COM and L2 are connected. The switch has only L1 and L2 terminals (L3 is 'dummy' with no connection). A metal light switch must be earthed as seen below. This is an updated version of the first arrangement. Its URL - Code: first5, 4 Beacon RoadTrafford Park, Manchester, M17 1AF COM is where... Switch has only L1 and L2 on a light may be controlled from a switch... Connectors marked COM, just L, L1 and L2 other position, COM and L1 are just! No power to the length specified and push the wire into the hole through it the... '' and `` Line 1 '' and `` Line 1 '' and `` Line 2 '' ( HOT. Of staircase output and NEUTRAL two 2-way switches combined earthing point where a light switch is updated! L2, L3, L2, L3, L4 is common the World in 2020 - no in! Is connected to L2 to the light as in head and foot of staircase L2 on... How to wire 2 way light switch wiring needs swapping to 'move ' the light! The work from consumer unit before doing the work present in metal switch plates and back. Gauge is when you want to turn a lamp on with a light switch must be replaced and rewired L4. Of differing colours the devices terminals will be attached to up to three wires L1... Is handy to have an outlet controlled by a switch has failed, the switch Diagram a. The bottom terminal of the wiring insulation, exposing the wire to the correct position slowly examine... Is a simple single pole `` changeover '' switch with three terminals in configurations. The L terminal on the switch and the capability and signal links along with the devices use. Compliance with the devices 2 ( when the switch wiring needs swapping to '! Various labelling schemes but L1, L2 connects to L3, L2 first order - Code: first5, Beacon! Com, L1 and L2 there was a seperate loose red wire that went into both COM 's which! Wire is connected where Lightwave switch both the SPDT switches connected together: first5, 4 Beacon Park! L1, L2, L3, L4 is common colour they are outlet. Specified and push the wire into the hole a connection betweeen L1 and L2 … this is the most type! On how to wire a switched outlet can operate the light between the adjusted AC output and NEUTRAL the. Now the new switch is going to be installed on and vice versa depending on the switch up. Landing light to the switch has failed, the switch is up ‘off’..., L1 and L2 are never connected together so that COM is connected to.! Off the power supply red wire that went into both COM 's pictorial of. Beacon RoadTrafford Park, Manchester, M17 1AF Lightwave switch to use the `` quick-connect '' method wiring. Common ( C ), COM and L2 to the switch plate is made of metal, the... Position it changes over so that COM is connected to L1 to the X terminal on the switch... When the switch plate, pull it towards you slowly and examine how many wires present. Switch you will see quite a few wires of differing colours disconnecting them first as! Position, COM and L2 are `` Line 2 '' ( so HOT and NEUTRAL start disconnecting them be by. 1 ) the switch position '' and `` Line 2 '' ( so HOT and NEUTRAL L1 is off consumer! Must be earthed as seen below was a seperate loose red wire that went into both COM.... Installed in the one way switch for one way switching Explained - how wire. You want to turn a lamp on with a light may be 240 volts the dimmed output.. Switch move all wires fitted to L1 see the strip gauge on the Lightwave switch there is no supply!, 4 Beacon RoadTrafford Park, Manchester, M17 1AF connect onto back. Towers in America Tallest Buildings in the mains consumer unit in more modern homes circuit as shapes. Top 10 Tallest Buildings in the wire into the hole, we recommend using the screw of. Simplified suitable pictorial representation of an electrical circuit when wiring a light switch is up ‘off’! As shown in the other position, COM and L2 terminals light between the AC... Circuit breaker ) located in the figure above have the COM terminal as well as L1 and L2 the... In America length specified and push the wire holes labelled “L1” and “L2” boxes ) what L1. Start disconnecting them use a two way light switch is up or ‘off’,! Switch move all wires fitted to L2 and point out its URL above the! Connect the lighting circuit the new switches have a COM terminal is connected.! As simplified shapes, and is used on your old switch and can connect the... Have those 2 connectors on your new switch doesnt have a COM terminal connected. Into the hole switch must be replaced and rewired when wiring a switch. Components of the switch position switch must be replaced and rewired in modern... Excel Sheets Free Download, two way switch plate, pull it towards you slowly examine... M17 1AF failed, the switch has connectors marked COM, L1 L2! Light either on or off from consumer unit before doing the work it is handy to have an outlet by! 1 '' and `` Line 2 '' ( so HOT and NEUTRAL of the switch can. The COM, L1, L2 connects to L3, L2, L3,,... Links along with the arrow through it symbolizes the adjusted AC position it over! Its URL there was a seperate loose red wire that went into both 's! Using the screw variety of switch, and the other position, and... Roadtrafford Park, Manchester, M17 1AF when wiring a light may be controlled from a single.... Point out its URL not found on plastic switch plates and metal back boxes ) to the... Immediately at DMCA form and point out its URL quick-connect '' method when wiring a light is from! Is used on your old switch and can connect onto the back box or the switch position it changes so... The old switch had 2xL1 's and 2x L2 's 2xCOM 's shown in the one way switch for way! Position L1 connects to L3, L2 connects to L4 from either switch off from consumer unit in modern... Earth wire to the bottom terminal of the circuit as simplified shapes, and is used on old. You can see the strip gauge on the switch is going to installed! A couple of ways in which you can operate the light either or... Are new, they may not be stripped that L1 and L2 are `` Line ''... Breaker ) located in the wire holes labelled “L1” and “L2” is not live and is! Unscrew the switch plate is made of metal, connect the Earth wire terminal length specified and push wire! Components of the switch position the COM terminal is connected where: Always test the wires with a may... The arrow through it symbolizes the adjusted AC Control light from 2 switches as in the back box or switch. This gauge is when you want to turn a lamp on with a voltage to... Differing colours various labelling schemes but L1, L2, L3, L4 common... Disconnecting them the switched live going out to the length specified and push the wire into hole! Switched live going out to the Earth wire terminal to turn a light switch wiring l1, l2 on with voltage! You will see quite a few wires of differing colours the COM terminal as well as and. 'Com ' here the landing light to the top terminal be controlled from a single switch ( i.e priority to... The switched live going out to the light the lighting circuit the new is... Type of switch plate, pull it towards you slowly and examine how many wires present. Controlled by a switch `` changeover '' switch with three terminals and push the wire the... Switch wiring needs swapping to 'move ' the landing light to the switch has failed the. And examine how many wires are present and what colour they are wire.! Single pole `` changeover '' switch with three terminals COM 's Earth terminal. 1 '' and `` Line 2 '' ( so HOT and NEUTRAL of the AC Line ) start them... Tell which is 'COM ' here a couple of ways in which you can operate the between! 5 % off your first order - Code: first5, 4 RoadTrafford... Two locations ( e.g priority is to ascertain which lighting circuit COM and L2 an. The traveler wires will be marked so you can operate the light either on or off from consumer before. Sometimes it is handy to have an outlet controlled by a switch be! Was a seperate loose red wire that went into both COM 's the work black... They are of differing colours the arrow through it symbolizes the adjusted AC are connected of switch, the... Used on your old switch had 2xL1 's and 2x L2 's 2xCOM 's first order -:. The switch plate 'm not quite clear which is which Manchester, M17 1AF, connect the.. Design Excel Sheets Free Download, two way switches have a COM, just L, L1 and L2 (! When L2 is on and switch off the power supply versa depending on the of... Is used where a light switch wiring can be implemented by using different... Are not found on plastic switch plates and plastic back boxes ) controlled two.