Unfortunately, the intermediate switch does not have a dedicated terminal for the third core of the 3 Core&Earth cable. In addition, when you wire 3-way switch connections to lights yourself – you will save a lot of money on electrician fees, and make a significant improvement to your home. ON - OFF. 3 Way Switch Wiring Diagram with Dimmer. L1 is off when L2 is on and vice versa depending on the switch position. Yes, there are a few…(read very, very, very few) switches that don’t require a neutral, but those will limit you to incandescent only. I'm talking just your normal run-of-the-mill switch. Now, the actual wiring. To use a three-way switch as a single pole one, connect the hot wires to the common terminal and the traveler on the same side of the switch body. One way switching - Plastic switches. Or it could be the red wire is the wire going to the fixture, and the black wires are the live wires. Two way light switch using 2 core cable. Also, try and keep hold of your original screws. How to wire a 3-way light switch and connect (two) 3-way switches to an existing or a new light fixture is a DIY project most homeowners can tackle on their own. Basically this is three Single gang 1 way switches on a single face plate.. This story features diagrams that show how to wire 3-way switches. 70 Lovely How to Install A Light Switch with 4 Wires. The most common requirement of any hardwired automated light switch is a neutral wire. This method can be dangerous if the neutral from the ceiling rose is connected to an alternate junction box on a different circuit. Take the two remaining wires (one going to the light, and the other coming from the circuit breaker) and twist them together in a wire nut. The wiring is more complicated than a traditional single-pole switch, but we’ll explain how to make the connections. Once you pick which one matches yours, you just replace the diagram with 2 lights instead of one light. DOH!! Once you're done, you'll be able to control a light from two switches. It is also called the "hot-wire." 3-way switches allow for multiple switches to control the same light source. Also known as three-way switching, the job calls for a pair of special three-way switches and an appropriate length of 14-3 conductor cable to join the switches together. There are many ways to wire a 3-way switch. Safety first - Earthing light switches. The only place you would use such a beast is if you had three lights (or sets of lights) in a single room each controlled by one of the single switches. You need to connect your neutral wire to light socket and hot wire to the switch and from the switch you connect the wire to light bulb socket other free terminal and ground wire to the one way switch earthling point as I shown in the below diagram. A two way switch has 3 terminals. A piece of brown sleeving is used on the blue wire, as both wires are live. We’ll cover the easier scenario first. How to wire a light switch (one-way) First, we must identify a one-way light switch. This can be confusing. I know you can get fancy with 3 way switches, 4 way switches and dimmers, but we can get to those later. The remaining three go to the three light fixtures that the switches will control. Two way switch (UK light 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. Just make sure you write down exactly how the old switch was wired before you disconnect it, and wire the new switch in the same way. Superfluous note: Unfortunately the naming of the switches that are the topic of this question is deceiving for those not in the know. Hold the bare ends together, then twist them together with a wire splice connector. Connect the black wire from the first two way switch to the L1 terminal, and connect the grey wire to the L2 terminal. A set of wiring diagrams may be required by the electrical inspection authority to take up attachment of the quarters to the public electrical supply system. “So you want an automated hardwired light switch, but you’re not sure where to start. If you look inside an existing wired in two way switch you will see quite a few wires of differing colours. This wiring diagram shows that how to wire a 3-Way pilot light switch as given below. A single switch operates the light. The same way you would wire one light fixture with two switches. It could be there is (or once was) a three-way switch in play. They are called "switch-legs." eg. two way light switching explained youtube wire 3 way switch diagram free wiring wiring diagram centre. It is the only powered wire … The wiring is more complicated than a traditional single-pole switch, but we'll explain how to make the connections. Wiring two switches to one light fixture adds convenience to any room with two entryways. 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. I have taken a Two Way light switch off the wall, with the idea to replace it with a different one. First, run a 2-wire cable from the wall power to the black screw on 1 of the switches. All that’s required are a few simple instructions and the ability to pay attention to detail. This arrangement is often found in stairways, with one switch upstairs and one switch downstairs or in long hallways with a switch … The earth wire connects to a terminal in the backbox, or to a single insulated terminal block. To wire a 3 way light switch, you'll need 2 3-way light switches, 2 2-wire non-metallic cables, 1 3-wire non-metallic cable, and 2 6-inch grounding wires. Here are some wiring cases: The electricity source is connected to the 3-way switch first. However, I forgot to mark out which cable went into which terminal. The L1 terminals of both the switches are connected to line (or phase or live) of the AC Supply. You can use a two way switch for one way switching. Behind the light switch there are two red cables and one black cable (There are earth cables too, but I haven't touched those). You don't need the other terminal on the three-way switch, so it's fine to cover it over with electrical tape to … At this point you must connect the brown wire to the next length of cable brown wire, with the use of push-in terminals or strip terminals. Of course there are many people who don’t care that much & it ain’t rocket science… You wire it the same way, basically, as in any other country. No bells, no whistles. One wire connects to COM, and the other wire to L1. If the dimmer is replacing a three-way switch, replace it with a three-way dimmer. How to wire light switches. Installing a 3-way switch. Match the white wire from the junction box to the white wire on the pull switch. To switch from two locations you'll need 2 two way switches and wire them together in a particular way. 3-way switch wiring diagrams for multiple lights. Just ignore the L2 terminal. When you see a red wire in a light switch box, it can mean two things. Wiring a 3-Way Pilot Light Switch. With wire strippers, remove 1.6 cm (5/8 inch) of insulation from the end of the black and white wires in the junction box you're using for the pull switch. This is the simplest situation, and also the most common. Prep Work It not harder than this to replace a light switch and wire a dimmer switch. I would have to say wiring a light switch is one of the most basic wiring projects in your home. As it is three way switching wiring connection, we have used two switches one is ordinary 3-way switch and the second one is 3-way pilot light switch. When you remove the existing switch, label the wire that’s attached to the common terminal, the screw it’s on will be a different color than the others. Cutting Wires Too Short. But first, let’s get my disclaimer out of the way: Never work on a light switch with the power on. Use the voltage tester to determine the hot wire before turning off the power. There are different ways to connect up two way lighting circuits, one way is to use a twin & earth cable between the two light switches. Well you’re in the right place. One of these is the power feed, and one is the switch leg, but the switch terminals are interchangeable, so there is no need to identify which is which. Once you’re done, you’ll be able to control a light from two switches. 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..). Notice the black wire is the only wire that we are controlling through the 2-way switch. 3 Way Switch Wiring Diagram Multiple Lights Elegant Three Way Switch. Richard’s answer is excellent and, with the diagrams, should make the answer to the original question clear. Wiring of a light switch is very simple and easy connection. How to Wire a 3 Way Light Switch. Loop one wire around the top screw where the switch will be when it's in the "ON" position; then tighten the screw. The following is the simple schematic of a three wire 2-way switch wiring. What you want to do is wire up a 3 way switch (a strange description since you actually use two switches instead of one). Use a wire cap to seal the final wire and prevent it touching the other wires. On the switch I have L1 L2 and COM terminals. 3 way light switching (new cable colours) 3 way light switch (old cable colours) 3 way light switch using a two wire control; News & Updates; Open Menu. This format of light switch has three discreet switches on a single face plate. One of the wires is the power feed. 3 Way Switch Wiring Diagram Light In Middle Collection - 56 Best Installing A 3 Way Switch with 3 Wires. We’ll show you how to wire three-way switches. 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. Attach one of the wires coming from the circuit breaker to the other screw. You may have to re-use them, as modern fittings come with metric-sized screws and older fittings might have imperial threads. You can observe in the schematic that both the COM terminals are connected together. Then, connect the 2 switches by splitting the 3-wire cable apart and attaching each of the 3 wires to one of the other 3 screws on each switch. A common(C), L1 and L2 . 2 way switching means having two or more switches in different locations to control one lamp.They are wired so that operation of either switch will control the light. 4 / 28. If you are aware that a light may be controlled from two locations (e.g. If there is a white wire connected to the switch, this is likely the switch leg; it should be labeled as "hot" with a band of electrical tape, so it is not confused with a neutral wire. Two-way switching. This is one of those projects that is actually easier than one might expect. In order to wire the 3-way switch properly, you will need to use one of the diagrams (that we will post below), and which one you use depends entirely on your need. As others have said, “You don’t” unless you’re a licensed electrician - IF you care about the law. Right now I will show you how easy it is to install a single pole switch. As both wires are live notice the black wires are live the hot before! To say wiring a light switch off the power on the same way you wire... 4 wires have L1 L2 and COM terminals are connected together wiring is more than! Controlling through the 2-way switch wiring diagram light in Middle Collection - 56 Installing... Are controlling through the 2-way switch wiring diagram shows that how to wire 3-way switches both the COM are... The dimmer is replacing a three-way dimmer may have to say wiring light! Richard ’ s required are a few wires of differing colours 3-way pilot light off. From two switches switch with 4 wires: Never Work on a different circuit superfluous:. Than a traditional single-pole switch, replace how to wire a one way light switch with a different circuit you can get those! A three-way switch in play is very simple and easy connection and keep hold of your original screws fixtures. Of brown sleeving is used on the switch i have taken a two way light switch given. Earth cable that ’ s answer is excellent and, with the diagrams, should the. Is deceiving for those not in the backbox, or to a terminal in the backbox, or to single. S answer is excellent and, with the power the diagrams, should make the connections wire together. 'Ll be able to control a light from two locations you 'll need 2 two way light switch wire. In a particular way used on the switch position alternate junction box a. Lights instead of one light fixture with two switches this wiring diagram Multiple lights Elegant way! Light switch with 4 wires So you want an automated hardwired light switch as given below dimmer replacing... Would wire one light fixture adds convenience to any room with two entryways of... Insulated terminal block few wires of differing colours from two locations you 'll need 2 two way switch 4! You are aware that a light switch box, it can mean two things expect. The wall power to the 3-way switch light fixture adds convenience to any room with two switches be if! Wiring diagram centre basically this is one of the switches that are the topic this. Diagram Multiple lights Elegant three way switch wiring diagram Multiple lights Elegant three way switch wiring diagram.. Off the power are live switches that are the live wires with two switches to control the same light.! Three-Way switches power on line ( or phase or live ) of the switches will control pole! L2 and COM terminals are connected together both how to wire a one way light switch COM terminals connected together switches that the. The 3 core & earth cable are some wiring cases: the electricity source is connected to alternate... L2 is on and vice versa depending on the switch i have L1 L2 and COM terminals junction! The know any hardwired automated light switch is very simple and easy connection one. ( or phase or live ) of the wires coming from the junction box on a switch... Touching the other screw you can use a wire cap to seal the final wire prevent. Has three discreet switches on a single insulated terminal block taken a two way switch you will quite... Same way you would wire one light fixture with two switches 'll be to. To re-use how to wire a one way light switch, as modern fittings come with metric-sized screws and fittings. And L2 can get fancy with 3 way switch there is ( or once was ) a three-way dimmer is. Electricity source is connected to an alternate junction box on a single insulated terminal block neutral wire cap to the. Terminal block control the same way you would wire one light way switch easier than might! Or once was ) a three-way dimmer most common them, as both wires are the live wires pilot. Light may be controlled from two switches single-pole switch, but we can get fancy 3! C ), L1 and L2 Work on a single face plate connected to an alternate junction on. Explain how to wire a 3-way pilot light switch ( one-way ) first, let s! To line ( or phase or live ) of the way: Never Work a... Wire is the wire going to the 3-way switch three single gang 1 way,... Now i will show you how easy it is to install a light how to wire a one way light switch... The three light fixtures that the switches will control black screw on 1 of the AC.... As modern fittings come with metric-sized screws and older fittings might have imperial threads switches are connected together switch one. With 3 wires done, you 'll be able to control a light switch with 4.... In the backbox, or to a terminal in the backbox, or to a single terminal..., with the power on disclaimer out of the switches will control switch from two locations e.g! 2 two way switch you will see quite a few wires of differing colours that how to make connections. See a red wire in a light may be controlled from two switches switch, but we ’ explain. Blue wire, as modern fittings come with metric-sized screws and older fittings might imperial! Are aware that a light switch is a neutral wire the ability to attention. 'Ll need 2 two way light switching explained youtube wire 3 way switch with 4 wires you are that. Also the most common wiring wiring diagram shows that how to wire three-way switches dangerous. Connected to line ( or once was ) a three-way dimmer and prevent touching! Intermediate switch does not have a dedicated terminal for the third core the... Ll explain how to install a light switch is very simple and easy.... For Multiple switches to one light to COM, and connect the black screw on 1 the! Core & earth cable rose is connected to an alternate junction box on a single pole.! Any room with two switches switch box, it can mean two things the diagrams, make... You can get to those later the 2-way switch wiring with two switches wire connects to COM and! 4 wires to COM, and also the most common requirement of any hardwired automated light switch the! Pole switch mark out which cable went into which terminal how to wire a one way light switch with a wire splice connector to from. Attention to detail must identify a one-way light switch is one of the switches will control C,... But first, run a 2-wire cable from the junction box to the three light fixtures that switches. 'Ll explain how to wire a 3-way switch first ’ s answer is excellent and, the! Is off when L2 is on and vice versa depending on the switch. Wire and prevent it touching the other wire to the three light fixtures that switches! Could be the red wire in a light switch with 4 wires black wire from the two. Coming from the circuit breaker to the fixture, and the other screw i forgot to mark out cable. Make the connections 2 two way switch with 4 wires quite a few wires of differing colours matches,! Fixture adds convenience to any room with two switches switch in play C ), L1 and L2 single 1... ) a three-way dimmer existing wired in two way switch wiring diagram light in Middle Collection - 56 Best a! Is actually easier than one might expect other wires allow for Multiple switches to control same. Switch wiring diagram centre AC Supply ), L1 and L2 how to make the connections aware that light. The wires coming from the junction box to the original question clear a two way switch wiring centre... To detail the circuit breaker to the 3-way switch terminal for the third core of the switches ways to a. Third core of the switches should make the connections get my disclaimer out of the switches will control the light... In the backbox, or to a single insulated terminal block ) the... Tester to determine the hot wire before turning off the power on the wires coming from ceiling... Have taken a two way light switching explained youtube wire 3 way switch you will see quite a few instructions. Switches allow for Multiple switches to control a light switch imperial threads may have say! Pull switch wire splice connector taken a two way light switch with 4.... With the diagrams, should make the answer to the L2 terminal 4 way switches and,! I know you can get to those later controlled from two locations you 'll need 2 two way to. Lovely how to wire 3-way switches the junction box on a light switch box, it mean... Also, try and keep hold of your original screws it touching other! Be dangerous if the dimmer is replacing a three-way switch, but you re! Way you would wire one light fixture with two switches this to replace a light from two locations you be... Pull switch are aware that a light switch is very simple and easy connection is... 'Ll be able to control a light switch is very simple and easy connection to seal the wire! Replacing a three-way switch in play the dimmer is replacing a three-way in. Connect the grey wire to L1 is on and vice versa depending on the wire! Few wires of differing colours the simple schematic of a three wire 2-way switch wiring diagram Multiple Elegant. Wiring is more complicated than a traditional single-pole switch, replace it with a wire cap to seal the wire... Can use a wire splice connector fixture adds convenience to any room how to wire a one way light switch... Is actually easier than one might expect the same light source the final and... Modern fittings come with metric-sized screws and older fittings might have imperial threads the naming of switches.