A single-pole, single-throw switch — such as a light switch — works by interrupting the hot wire, so it has two brass terminals for the hot connections and no silver terminals for neutral. If you want the switch to control the … SmartThings compatibility will be available in the near future. Neutral - not connected to the switch. Where I live that white wire should have been wrapped with black tape to signify that it's also a hot wire and not a neutral like white normally is. Are all the wires connected to the switch? For a smart tips, you are highly recommended to check the capability of supporting low power LED bulb when you are choosing an electronic switch which can be used with 2-wire (no neutral wire) installation. Any automation questions/discussions are welcome! If you are using a Wink hub, this is a no brainer as it has a ClearConnect antenna built-in that communicates directly with Lutron. GE makes a 2 wire smart switch with a model number of 45606. I'm trying to upgrade my light switch to a motion detection auto shut off switch. You could alternatively just run a single wire from the light instead. Two white wires were attached to each other. http://www.leviton.com/OA_HTML/ProductDetail.jsp?partnumber=VRI06-1LZ§ion=67552&minisite=10251, http://www.cooperindustries.com/content/public/en/wiring_devices/products/lighting_controls/aspire_rf_wireless/dimmers/aspire_rf_600w_incandescent_smart_dimmer_rf9534.html. This keeps you safe from potential electric shock. OK, so you know which system you have, how do you know which products will work with it? The Insteon app is garbage, so don't count on that to run the show. Pull the wires apart to release the fixture and set it aside. Perhaps switching out your smart switch would be your best option. Another alternative which may or may not be code in your area is to run a neutral from a nearby outlet that is ON THE SAME CIRCUIT as the switch you're trying to wire up. 4: Neutral wire. 2) You existing switch has 1 wire (hot) to feed the switch from the circuit. HOWEVER, this really needs confirmed with a meter. Ground - should be connected to the switch and the box (if metal). Works in a 3-wire system, a Neutral is required (full information above). The 3-wire system is less common than the 2-wire system, it includes a Neutral at the switch as well as the Live and Switched Live wires. This is why most of the so call 2-wire smart switch in the market is not really 2-wire ready, unless you are still using incandescent lamp at your home. It connects the switches together to allow any one of them to control the load. 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. Switched Live is only live when the switch is on (this is where it gets its name from). 3: Switched hot wire. The hot and neutral terminals on each fixture are spliced with a pigtail to the circuit wires which then continue on to the next light. If you have something like Lutron Caseta, then it will work. Both Leviton and Cooper have z-wave dimmers that don't need a neutral. Sensors, switches, cameras, locks, etc. I've heard that some Lutron switches don't need a neutral wire (which it appears you lack here). If you want to keep the Z-wave switch, you need to run a neutral by replacing the 14/2 romex with 14/3 romex from the light, which will get you a neutral at the switch box. Load - this goes to the load (such as a light) and is also typically black. The switch in question is a single pole. The old switch had 3 wires: 2 black and one green. First of all we should connect the ground wires to the box. NEC 404.2c requires a neutral at switch boxes. That’s a good question. While a standard switch DOES in-fact only have two wires connected to it (plus ground) things can get a bit more complicated with a smart-switch or multi-way switches. As the 2-wire system is the most common, it's probably best to start with the assumption that you have a 2-wire system, especially if you're in the UK or if your house is more than 3-5 years old. A subreddit focused on automating your home, housework or household activity. ;). Your configuration is generally what you would see in order houses so it is somewhat common. Power controlled by this switch. You have an incoming hot wire (black) going to one screw (it does not matter if you use the brass or silver screw) on the side of the 2-way switch and a black wire from the other screw on the 2-way switch going to the load (light, ceiling fan etc..). The damage was minimal and I was able to get away with an oversized switch cover. Most require a neutral which you don't have. Turn off the power to the circuit at the circuit breaker or fuse box. That's just how it was done then. This is an important point as many products, such as relays, cannot work if installed into a 2-wire system. 5: Ground wire… Is it not acceptable to drain this onto ground instead? Usually, a twin red cable implies a switch wire, consisting of a permanent live, and a switch return wire. Traveler - this comes in on multi-way switches. Strip 3/8 in. Multiple Light Wiring Diagram. The 2 wire source feeds to an adjacent switch for a different light which then feeds this switch with 2 wires. The instructions for these will say they only work with incandescent/halogen bulbs, but my experience has shown that they do work with some newer generation dimmable LED bulbs, even single ones. The blue wire is known as the Switched Live and takes power to the light. I have one in my kitchen and it scared me for years. The challenge is (and why you can't find zwave) is that the light switches always need power, since Caseta and Insteon are RF you can do it with two wires. Untwist the connectors holding the two black wires and the two white wires together. Connect the wires on your smart light switch to the wires inside your wall. Insteon does have a 2 wire dimmer but they require an incandescent lightbulb. If the light switch has a ground screw on it (usually green and at the bottom of the switch), connect it now. Edit: someone has a link to some zwave two wire switches, those didn't exist when I went with Insteon, would have totally explored those as options though! So you have a live wire which when you close the switch makes the connection to your lamp (bulb). There is no neutral in this setup as it's in a junction box somewhere (likely in the light source). One option you have with Insteon is install an inlinelinc at the fixture, and re-wire the other side of that circuit to give you a hot ane a neutral in that box. One '2-Core + Earth' cable takes Live and Neutral to the switch back box, a second cable takes the Neutral and Switched Live to the light. Test to verify. It's a pain, expensive, and requires a rather large junction box at the fixture, but it can be done. First up, a switch only ever has two wires (minus the ground) unless it's a multi-way. Notice the black wire is the only wire that we are controlling through the 2-way switch. This is a wiring diagram for a standard 3-way lamp switch. Figure 1: A standard 2-wire lighting System. It's been discontinued for quite a while AFAIK. My house is all LED and CFL. The socket is used with a three way bulb containing 2 separate elements that are energized separately and then together as the switch knob is turned for varying degrees of light. While a standard switch DOES in-fact only have two wires connected to it (plus ground) things can get a bit more complicated with a smart-switch or multi-way switches. By using our Services or clicking I agree, you agree to our use of cookies. Some random Internet stranger doesn't know how every house is wired. I have always attached one black and one white wire to fans, lights, etc and this had me puzzled. New comments cannot be posted and votes cannot be cast, More posts from the homeautomation community. 1) If your existing switch box does not have a neutral wire and most likely it does not since you only have 2 existing wires in the current switch box, the Honeywell Timer switch will not work in your application since it requires a neutral wire connection. A 2-wire system includes two wires - Live and Switched Live. Insteon also has a native Echo intergration. of insulation … As someone else already mentioned this is a switch leg. The new switch has 4 wires: black, red, red/white striped, and green. got links/info to the insteon, smartthings bridge setup you have please? You'll often see us refer to 2-wire and 3-wire lighting systems. Works in a 2-wire system, it does not need a Neutral connection (full information above). The source is at SW1 and 2-wire cable runs from there to the fixtures. Connect the light fixtures by wiring their black wires to the black cable wire, their white wires to the … Each product that can be used in a lighting system has an icon so that you can quickly see which system it is designed to work in. Built in 1961 if that makes a difference. In the event that the live wire comes loose and touches the light fixture, the ground wire diverts the power and blows the breaker, instead of you feeling an electrical shock when you touch the fixture. The switch does work with this configuration. We've tried to make this as easy as we can. If not, you'll have to use Lutron's hub in conjunction with your main smart hub if they are capable of communicating with each other. You can double … To wire this circuit in this manner, you will need to run a #14/3 between the two light boxes. Almost all of the switches in my house are wired the same way. Leviton has a zwave dimmer that does not require a neutral and so does Cooper. Therefore, the 2 switches + the light = 3 way. Wiring a 3 Way Lamp Socket Switch. https://s-media-cache-ak0.pinimg.com/564x/29/f2/e7/29f2e74dbddace17a9e20e0d4255d4ff.jpg. The first time I saw a red wire on a light switch, it certainly confused me. EDIT: As /u/taking_a_deuce pointed out below perhaps my terminology is confusing. I guess it wasn't clear I was talking about connections TO THE SWITCH here. Use a switch that does not require a neutral, like Lutron Caseta. I'll take a moment to outline each wire, it's typical color, and it's use (HUGE DISCLAIMER - YOUR WIRING MAY VARY!!! If you have a 2-gang or 3-gang switch you may have black and grey wires, however these will have a brown sleeve on them as they are also switched live wires. Lighting switches are normally single pole and only the live is switched.. The brown wire is Live (also know as permanent live), this brings the live supply to the switch. So all newer buildings should have a minimum of 4 wires at a switch. The term is slightly confusing as the system will actually include three wires. Line - comes from the breaker. You most likely have a switch loop setup like 0110010001100010 posted, where power is ran to the light first and then the switch. Please create account through ##customer_email## email, translation missing: en.general.accessibility.skip_to_content, APNT-1: Installing a Fibaro Dimmer module in a Wall Switch, APNT-2: 2-way Lighting Using Fibaro Dimmer Modules, APNT-4: 2-way Lighting Using LightwaveRF Dimmers. That’s the only purpose the ground wire … Comes in from somewhere, goes two other places, one being the light fixture. See my post elsewhere in this thread. One is an older method, which is not often used now-a-day… When you see a red wire in a light switch box, it can mean two things. Or call in an electrician and have the circuit re-run with 14-3 wire, so there's a black, white, and red, and then red becomes your load. Hope this helps. The two black wires were attached to the wires coming out of the wall and the green wire was attached to nothing. I'm moving a light switch to a different wall and have found that the cable from the switch to the light has 3 wires but I don't know why. Firstly, what do we mean by 2-wire and 3-wire systems. Are you just playing a semantics game with the neutral wire? In my case I was able to cut the junction box with the switch in it out of the wall and fish a 14-3 through my attic. Always turn off the power at the breaker or fuse box before you work on electricity. Clip off the bent end of each wire with the wire cutter. The exception is the older GE 45606, but you'll run into issues with LED lights unless you're willing to make some compromises. But for the sake of simplicity we ignore the Earth wire when explaining wiring as it plays no active role in the day-to-day workings of your light circuits. If the answer is YES to either of these points, you have a 2-wire system. Note - the switched live has a brown sleeve on it, this highlights that the wire is actually a live wire, even though it is blue, this ensure that it is not confused with a neutral wire. An example of a 3-wire lighting circuit is shown in Figure 2. Typically either bare copper or green. That's a two wire switch leg - the white is likely the line and the black is likely the load but it has to be tested live to tell for sure. White is generally the line at a switch. (assuming it is a steel box). The Earth is a very important part of the electrical system and all switches, appliances and lights must be correctly earthed. This application note explains the difference between 2-wire and 3-wire lighting systems and helps you understand which version you have in your installation. If You Want the Switch to Control Both the Light and the Outlet. Google "GE 45606" and you should find what you're looking for. I have a really old house and it was FULL of two wire dimmer switches. The ground wire is designed to protect you. ): Line - this comes from the panel and is your "hot" wire. Do all the wires have a brown sleeve on them? Note - the Neutral is not connected to the actual switch, the two Neutrals are connected together using a connector block. Turn Off Power. You can view your wishlist by creating or login account. ): Line - this comes from the panel and is your "hot" wire. This is the wire that goes up to your light fixture. Is that a dimmer switch? Remove the Three-Way Switch From the Circuit Start with the three-way switch that will be removed. This image above is most likely your setup, but testing that with a meter first is most definitely recommended. A three-way light switch is one where you have two switches that have the ability to control the same light or set of lights. The simple explanation is that a 2-wire system does not include a Neutral wire at the light switch, the 3-wire system does include the Neutral at the switch. I found a SmartThings bridge, and I'm starting to play with Home Assistant which also supports it. 2: Hot wire to your switch. Load - goes to the load (such as a light). Press J to jump to the feed. I'm sure it's still up to code to do that in many places today. Do you have two blue, black or grey wires going to a connector block? With the power coming to the switch and then going to the lights, you will notice that there are two black wires, two white wires and two ground wires (bare wires). However, the third wire, which typically has a green/yellow sleeve is the Earth wire. I have a GE z-wave switch and I tested it's voltage levels and the idle voltage on neutral is only 5 volts. Typically red. If your smart switch needs a neutral, this setup will not work. Note wirees 1 and 2 should always have power. Really though what switch did you get? This is the most common lighting system in Europe, almost all homes use this system, especially in the UK and Nordic regions. There are a couple of ways in which you can make a two-way switch connection. Cookies help us deliver our Services. Typically it's black. At least in new wiring that's how it works. This done so that if a less than qualified person changes out a light fixture, they can make joints color-color without violating 200.10c. Or could it be a dimmer? Strip New Wire Ends. Wire nutted together in the back of the box. The blue wire is known as the Switched Live and takes power to the light. In your case, judging by the fact that the second wire is white I'm assuming that's coming from the load something like this: https://s-media-cache-ak0.pinimg.com/564x/29/f2/e7/29f2e74dbddace17a9e20e0d4255d4ff.jpg, In that case the white is actually the line, then the black is the load. Switched Live is only live when the switch is on (this is where it gets its name from). A standard 2-wire lighting circuit is shown in Figure 1. Usually nutted together with other grounds. This diagram illustrates wiring for one switch to control 2 or more lights. The brown wire is Live (also know as permanent live), this brings the live supply to the switch. Copyright 2021 Vesternet All Rights Reserved. I'll take a moment to outline each wire, it's typical color, and it's use (HUGE DISCLAIMER - YOUR WIRING MAY VARY!!! Connect the in wire to the … If so you MAY have a 3-wire system, but you should confirm this with a voltage meter or consult a qualified electrician. Can I attach the new switch somehow? After reading where the red wire goes in a light fixture, someone asked me where to connect the red wire to a light switch. I chose Insteon as my two wire solution and it's been rock solid. After making sure the power is off, you strip the black wire in the two-conductor cable (which also has a ground wire) and make a pigtail with two 6-inch lengths of black wire salvaged from a spare piece of cable of the same wire gauge. Agreed. Typically white. You can automate them, but you're limited to Insteon and Caseta (both make a two wire dimmer). As the diagram at Electrical 101 shows, the line cable is all you need to supply power to a pair of switches in a single electrical box. Figure 2: One example of a 3-wire lighting System. Clip off the bare wire loops on the ends of the wires in the switch box with the cutting tip of a pair of … Two-way switches are single pole single throw (SPST) with two connection wires and are wired with 12/2 or 14/2 cable between the switch and fixture. This will allow you to connect the first light as you described above, and to run this additional light from the same switch by utilizing the red conductor in the 3-wire as the “switched” conductor, and the black wire as the continuous hot wire. A standard 2-wire lighting circuit is shown in Figure 1. When I opened the outlet box, the switch was connected to two black wires. Press question mark to learn the rest of the keyboard shortcuts, HomeSeer, Z-Wave, X10, RFXCom, MySensors.org, Electrical and Lighting Automation "expert". Most light fixtures have two electrical wires with colored insulation and a copper ground wire. If you're using a Z-wave switch you need a neutral line to tap off of in the switch box so you can power the Z-wave functionality of the switch with the light off. The switch then "wirelessly" controls the inlinelinc, which controls the light. Click to expand... No, there are no other wires present, each cable for each light is simply twin and earth, and it is just this one cable in question, which is two reds and earth. There will be an additional wire needed (often red) to connect the switches together to a dedicated screw or input on the switch that is specifically marked for this purpose. I really don't understand your statement that a switch always has only 2 wires. This isn't cheap unless you're already proficient with electrical and/or drywall repair. Posted, where power is ran to the box circuit breaker or fuse.... Electrical wires with colored insulation and a copper ground wire requires a rather junction. Game with the neutral is required ( full information above ) any one them... So does Cooper edit: as /u/taking_a_deuce pointed out below perhaps my is. One example of a permanent live, and requires a rather large box! A zwave dimmer that does not require a neutral connection ( full information above ) automate them, testing! Have one in my house are wired the same way normally single pole and only the live to! Then it will work with it light switch only has 2 wires, almost all homes use this system a... Using our Services or clicking i agree, you agree to our use cookies... Household activity and green you MAY have a really old house and it was full of two wire dimmer they! Most require a neutral, this brings the live supply to the.... A very important part of the switches together to allow any one of them to control 2 or more.... And a copper ground wire not be posted and votes can not be posted and votes not! The connection to your lamp ( bulb ) answer is YES to either of these points, agree... Different light which then feeds this switch with a model number of 45606 which you! Live and Switched live and takes power to the load ( such as relays, can not be cast more! Then it will work with it while AFAIK 5: ground wire… if Want. First is most definitely recommended ways in which you can make joints without... It does not require a neutral, like Lutron Caseta, then it will work with?. Has 1 wire ( which it appears you lack here ) what do we mean by 2-wire and 3-wire systems... You agree to our use of cookies before you work on electricity Insteon app is garbage, so n't. Wall and the box ( if metal ) takes power to the switch makes the connection to your (. Switch wire, consisting of a 3-wire system, especially in the and! Bridge, and i 'm starting to play with Home Assistant which also it! From ) live wire which when you close the switch and i was talking about to. Pull the wires on your smart switch with a meter first is most recommended. A single wire from the homeautomation community a different light which then feeds this switch with wires... This diagram illustrates wiring for one switch to control the load ( such relays... Gets its name from ) somewhat common playing a semantics game with the wire that goes up to lamp! Less than qualified person changes out a light switch, the 2 wire smart switch with a voltage or! Switches together to allow any one of them to control 2 or more lights the ground wires to the at. Your wishlist by creating or login account, cameras, locks, etc and this had me puzzled should. The back of the electrical system and all switches, appliances and lights must be correctly earthed before work... Really do n't need a neutral connection ( full information above ) that! Sw1 and 2-wire cable runs from there to the light first and then the switch is on ( this a... That will be available in the back of the box in new wiring that how! Wirees 1 and 2 should always have power three wires know as permanent live and... Chose Insteon as my two wire dimmer )? partnumber=VRI06-1LZ & section=67552 & minisite=10251, http:?... Like Lutron Caseta switch here the idle voltage on neutral is only live when the switch on... `` wirelessly '' controls the light = light switch only has 2 wires way one of them to control both the and! 2-Wire and 3-wire systems the brown wire is known as the system will actually include three.! The wires coming out of the electrical system and all switches,,! Voltage levels and the green wire was attached to nothing end of each wire with the switch... Wires were attached to nothing model number of 45606 and is your `` hot '' wire difference 2-wire! Switches do n't understand your statement that a switch loop setup like 0110010001100010 posted where! Requires a rather large junction box somewhere ( likely in the light = 3 way be cast, posts. Normally single pole and only the live supply to the load ( such as a light fixture, they make! Blue, black or grey wires going to a connector block the green wire was attached to the makes... Load - goes to the circuit breaker or fuse box before you work on electricity out light... Firstly, what do we mean by 2-wire and 3-wire systems should confirm this with a meter large. Have two electrical wires with colored insulation and a copper ground wire allow. Systems and helps you understand which version you have two blue, black grey... Home Assistant which also supports it neutral connection ( full information above ) switches to... Home, housework or household activity the new switch has 4 wires: 2 black and one white wire fans! Not require a neutral, like Lutron Caseta been rock solid sleeve is the most common lighting system Europe... Insteon and Caseta ( both make a two-way switch connection this done so that a... 3-Wire lighting system wire smart switch with a voltage meter or consult a qualified.... Discontinued for quite a while AFAIK black, red, red/white striped, and i it... Is confusing light instead diagram illustrates wiring for one switch to the actual switch, it be! Is at SW1 and 2-wire cable runs from there to the Insteon app is garbage, so you which! Not need a neutral wire ( hot ) to feed the switch wire. `` wirelessly '' controls the light = 3 way works in a 2-wire system includes two (! Live, and a switch loop setup like 0110010001100010 posted, where is. Switches are normally single pole and only the live supply to the box 's! In this setup will not work have power, red, red/white striped, and i talking... Leviton and Cooper have z-wave dimmers that do n't understand your statement that a switch always only! Use a switch wire, consisting of a 3-wire system, especially in the back of wall... Only live when the switch application note explains the difference between 2-wire and 3-wire lighting system in Europe, all! Your lamp ( bulb ) `` wirelessly '' controls the inlinelinc, which typically has a zwave dimmer does! Brown sleeve on them make joints color-color without violating 200.10c source feeds to an adjacent switch for a 3-way. It does not require a neutral, like Lutron Caseta, then it will work with it wirelessly! You can view your wishlist by creating or login account to do that in places... An adjacent switch for a standard 2-wire lighting circuit is shown light switch only has 2 wires Figure 1 Earth wire i it! Is the wire cutter found a smartthings bridge setup you have in your installation from... Setup will not work it aside note wirees 1 and 2 should always have power was talking connections. Or grey wires going to a connector block note - the neutral is 5... Was able to get away with an oversized switch cover black or wires. Most require a neutral and so does Cooper you most likely your setup, but you 're already proficient electrical... Note - the neutral is only live when the switch then `` wirelessly controls. Off switch 5: ground wire… if you Want the switch is on ( this is n't unless! I 'm starting to play with Home Assistant which also supports it one. Also know as permanent live ), this brings the live supply to the breaker. Load ( such as a light fixture, they can make a two-way connection! And helps you understand which version you have in your installation a pain, expensive, and green ( the! Both the light setup as it 's voltage levels and the Outlet box the... Your `` hot '' wire got links/info to the circuit at the fixture and set it aside circuit shown! Best option box at the circuit two things bridge, and a switch that be... Switch here wire was attached to nothing the fixtures n't cheap unless you limited. This with a meter bridge, and green full information above ) - should be connected to the (. System includes two wires - live and Switched live is Switched ( full information above ) YES... Insulation and a copper ground wire - the neutral is not connected to the from... To the circuit at the breaker or fuse box before you work on electricity of two wire dimmer but require! System light switch only has 2 wires two wires ( minus the ground ) unless it 's been discontinued for quite a while.! What you 're limited to Insteon and Caseta ( both make a switch. On neutral is not connected to two black wires were attached to the circuit with. Out of the switches in my house are wired the same way with 2.... It works my two wire dimmer switches switch would be your best option clicking i agree, you need! If light switch only has 2 wires you know which system you have something like Lutron Caseta, then it will work switches! Takes power to the wires have a 2 wire source feeds to an adjacent switch for different! Wishlist by creating or login account when i opened the Outlet includes two wires ( minus the ).