It is a standard single pole switch with three terminals. With the power off, connect the black hot wire to the old switch. 5) If it is a single pole switch you should have 3 wires connected to it, the feed, the switch leg and the ground. The wires get very warm and Im concerned that the circuit maybe overloaded. Installing a single-pole switch is just one in a series of tasks that make up an electrician’s work, but along with running rough wiring and installing boxes, it’s a task that anyone can do and save some money in the process.When wiring a switch, there are two scenarios: You’re connecting two feeds (one power, one to the fixture) or one feed (from the fixture to the switch). Turn Off the Power. Timer switches are designed to turn an electrical device on or off at specific times, to automate the times when the device is in use. I am confused on how to rewire the switch.". Steps for Wiring a Single-Pole Switch . In this illustration, you can see the red hot “lead” wires of the dimmer are connected to the inbound black wire from the electrical source (the electrical panel) and the black wire that goes to the light fixture’s black wire which, in this case, is a white wire that has been taped with black electrical tape. I am trying to install a dimmer switch in my bedroom. The new switch has a different way to attach. Copyright© Step 1 Turn off the breaker inside the main breaker panel that supplies electricity to the light switch gang box. A double pole switch can be used to control light and a fan or 2 lights on separate circuits. All the white wires are capped together and the same is for the ground wires. 5641 • To be installed and/or used in accordance with appropriate electrical codes and regulations. Take a second 14/3 wire and strip 1/2 an inch of insulation off the end of the black and the red wires. You should have 2 screws or connections on the same side of the switch. submitted to our "DoItYourself.com Community Forums". Wiring a 3-Way Light Switch. 5641 Rated: 15A-120/277VAC INSTALLATION INSTRUCTIONS PK-93604-10-00-0A Standard Style Switch Decora Style Switch WARNINGS AND CAUTIONS: Cat. I've seen many old threads about this issue where a single pole switch is connected to more wires than expected. https://www.familyhandyman.com/project/how-to-wire-a-threeway-switch Relay Wiring. Switched Outlet Wiring Diagram. The first step in any electrical project is to make sure there is … I don't know why there would be 3 black wires running to this switch. How to Convert 3-Way Switches to Single PoleTo convert a 3-way switch to single pole, one of the traveler wires is removed from the switch.In order for a 3-way switch to function as a single pole, the wires need to be connected to the common and one of the traveler terminals.It will not work if the wires are connected to the two traveler terminals problems contact webmaster@doityourself.com. This is a typical wiring setup for a 3-way light switch with black, white, red, and ground wires. This is common with some older boxes, when you have two single switches hooked up instead of one double switch. 7) Install the new switch back into the box. How to Wire a Three Way Switch to a Existing Single Pole Light Switch Circuit. A three-way switch is different. While a single black wire is pigtailed and connected to the bottom screw (non-green screw). Can someone explain a cicuit layout for a 220v light circuit with one single pole switch and one with 2 three pole switchs? How to Wire and Install Single-Pole Switches, How to Replace a Standard 120-Volt Outlet Receptacle, Replacing a Toggle Light Switch With a Rocker Style Switch, How to Wire a Line-Voltage Thermostat for a Baseboard Heater, How to Make Pigtail Electrical Wire Connections, How to Replace a Single-Pole Light Switch, How to Change a 4-Prong Dryer Cord to Fit a 3-Slot Outlet, How to Fix a Hot or Buzzing Dimmer Switch, How to Install an Electronic Dimmer Switch, Understanding Three-Way Electrical Switches, How to Install a Single-Pole Dimmer Light Switch, Wiring for Split-Wire or Split-Feed Outlets. 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. All the white wires are capped together and the same is for the ground wires. 3 Way Switch Wiring Diagram. This is a typical wiring setup for a 3-way light switch with black, white, red, and ground wires. How to Wire a Single Switch; Instructions. 5241 Cat. Safely Working with Electrical Circuits. Remove the wire nut on the neutral wires by unscrewing it. The green wire or plain copper wire is your ground. Pick the diagram that is most like the scenario you are in and see if you can wire your switch! I went to put a dimmer on a setup with three switches. Installing a Double Switch: Ensure that none of the wires are touching metal. "The old switch was attached with two blacks inserted into the back of the switch with another black attached to the screw. They are used for lighting, disconnects for furnaces, garbage disposers, and other things needing something to turn on and off a 120-volt circuit. 1995-2018 MH Sub I, LLC dba Internet Brands. Most rocker switches are of the “single position, single throw” variety. Remove the old switch. home improvement and repair website. This might seem intimidating, but it does not have to be. The hot wire in a 120-volt residential AC circuit usually is coated with black insulation, while the return, or neutral, wire is white. I bought a new single pole switch that has 2 screws on the side and 1 grounding screw (as you'd expect). Wires that are cut too short make wire connections difficult and—since you’re more likely to make poor connections—dangerous. Twist the wires around the terminals in a clockwise motion so the wire tightens around the screw. It should also help in understanding the functions of each type of switch. Before you dive deep into this project, you’ll need a few tools and supplies to get … Make copies for classroom instruction or individual use. This simple how-to will have you turning lights on and off in no time. This page contains wiring diagrams for household light switches and includes: a switch loop, single-pole switches, light dimmer, and a few choices for wiring a outlet switch combo device. Remove 3/4 inch of casing from the end of the house wires if needed. Cut the looped wire in half. Trim and cap the splice. View our Privacy Policy here. In one position the switch is ‘open’ and no connection is made. It has four terminals: two … Secure using a wire nut. Remove 3/4 inch of casing from the end of the house wires and the dimmer switch wires, if needed. I have a light switch that is the only switch to control the two lights at ... features conversations among 250,000+ experts and novices in over 120 categories, so each week, we highlight a conversation that may help you with a project. Jan 24, 18 02:09 PM Also relays can be used to switch higher draw accessories to reduce switch load and voltage drop. Before proceeding, an important component called a Two-Way Light Switch is the main element of the 2 Way Switching, irrespective of the type of wiring used. The most simple and common method of wiring a single pole switch. The one on the top of the switch (which supposedly goes to the light fixture) I attached to the black HOT screw on the HS210. All the white wires are capped together and the same is for the ground wires. Cap the white neutral wires to each switch box. Now you have 2 wires. 5241 Decora Style Cat. As wire nuts tend to come off of single wires, twist a short length of electrical tape around the wire nut and wire to keep them together. If it doesn’t work, switch the lower wires. The old switch was attached with two blacks inserted into the back of the switch with another black attached to the screw. If the light turns on, the second black wire you connected to the switch is the switch feed and the unconnected black wire is the feed to the other loads. But when I pulled the old switch out of the wall, the existing switch has 3 wires connected to it (in addition to the grounding wire). Connect the ground wire from your dimmer to a green or bare copper wire … Recently purchase a new house built in 1995. Once you’re done, you’ll be able to control a light from two switches. Dimmers come in two basic wiring configurations. The wiring is more complicated than a traditional single-pole switch, but we’ll explain how to make the connections. Before touching the original light switch, turn off the power at your fuse box. How to Wire a 3 Way Light Switch. There are groves on a plate under the screws. Hey, doing it yourself is great but if you are unsure of the advice given or the methods in which to job is done... don't do it. Not sure about the 3rd black (or which one it was) - White from at least 2 of the ROMEX cables were wire-nutted together. Before wiring installation of a combo device, one must know the basic different between Combo GFCI and Combo switch outlet. A double-pole switch is what you need to control a 240-volt device because 240-volt circuits have two hot wires. The first time the switch was live and I could program it but it wouldn't turn on the light so, I switched the wires and all was fine. Take a closer look at a 3 way switch wiring diagram. Glad you got it solved, and thank you for the feedback. Learn how easy it is to wire a single-pole switch. I have just recently bought a house and was changing some of the light switches to new ones. Dominick Amorosso DecemberJ,2012 110 volt , Electrical 11 Comments 27648 views In this video, I explain just how easy it is to add a three-way switch to an existing single pole (one) switch lighting circuit. This type of switch has two brass screws, usually on the bottom, and a copper or black screw on the top left. Here's what we know: - The 3 ground wires from the ROMEX cables are all connected - Black from at least 2 of the ROMEX cables were attached to the single-pole switch. I forgot to write down which wire went where when I removed the old switch so it is my own fault. The source is at the switch and 2-wire cable runs from there to the light. Page 1: Single Line Hot Single Pole and 3-Way Switch Standard Style Cat. Turn the power back on and turn the switch on. Of the three … 3 Connect the New Dimmer Switch Here are the steps for wiring a single-pole dimmer switch: If the house wires are bent, use a wire stripper to cut off the twisted ends. The upper portion of the changeover switch is directly connected to the main power supply while the lower first and right connections slots are connected to the backup power supply like generator or inverter. Original Post: Need Help! Single Pole Switch with 3 Black Wires, Need Help! Connect these two wires to the two bottom terminals of the double-pole single-throw switch. The red wires should be on one side of the switch and the black wires should be on the other side. Read More. One black wire attached to top screw. The electrician wired all 16 lights on one circuit with two three pole switches. I tried looking up online and I couldn't find a good DIY guide as to how to connect the 4 wires in the HS200 with the existing wires of the single pole switch. The difference between a single- and double-pole switch is that the latter controls two circuits at the same time. Power at Switch. There is a break away fin tab intact to the line terminals of normal combo switch and outlet whereas, it doesn’t exist in GFCI or AFCI combo device. Both a single pole and 2-pole switch will have the words “OFF” and “ON” on the handle, while both 3 and 4 way switches do not. If the light doesn't turn on, then it's the other way around: the connected wire feeds the other loads and the disconnected wire is the light feed. With 9 different single pole switch wiring methods including switch fed, light fed, half switched receptacles and combination switches. Sometimes it is handy to have an outlet controlled by a switch. When working with electrical circuits, it is critical for your … Connect either of the other two black wires to the other screw on the switch. Wiring a Light Switch with Multiple Lights. All rights reserved. Wiring a three-way switch. Single pole switch has two screws on the side of the switch and one green colored screw lower down on the switch for ground. Related Articles: Toggle Switch Wiring. Changing a Single Pole Light Switch with 3 black wires and no ground.? Hi all, I am replacing my single pole light switch and noticed when I removed the old switch that there are three black wires coming from the box. One of the two non-hot black wires is the light feed and the other is a feed to other loads - possibly some receptacles, but it doesn't matter. Wiring a single pole light switch. I'm not sure how to reattach On my single-pole outside light switch there were three black wires. How to Convert 3-Way Switches to Single PoleTo convert a 3-way switch to single pole, one of the traveler wires is removed from the switch.In order for a 3-way switch to function as a single pole, the wires need to be connected to the common and one of the traveler terminals.It will not work if the wires are connected to the two traveler terminals What You’ll Need. Switch wiring shows the Power Source (Power In) starts at the switch box. DoItYourself.com®, founded in 1995, is the leading independent With a few choice electrical tools and these instructions, you can change or install a single-pole switch in a short period of time. Power From Lights. With a standard 2-way dimmer, a single switch controls a single light. Single Pole Switch with 3 Black Wires. All information is provided "AS IS." There should be a white, black and one bare wire used for grounding. Here are the steps for wiring a three-way dimmer switch: If the house wires are bent, use a wire stripper to cut off the twisted ends. I have single pole light switch with 3 black wires. With these diagrams below it will take the guess work out of wiring. Every home has many single-pole switches in it. This type of switch lets you turn the light off or on from more than one place in the room. suggestions. Want to turn a lamp on with a light switch? Both a single pole and 2-pole switch will have the words “OFF” and “ON” on the handle, while both 3 and 4 way switches do not. Doityourself.com's Forum features conversations among 250,000+ experts and novices in over 120 categories, so each week, we highlight a conversation that may help you with a project. This particular one is wired differently than the other single pole switches that i already replaced. 6) Remove wires from existing switch and connect them to the new switch. No. Connect the pigtail to the other screw on the new switch. Website operating We don't know how the other two were wired. Otherwise, the loop of the wire will open when you tighten the screw. The light will either turn on or it won't. I assumed it was a single pole switch as it is a simple switch to turn on the bedroom light and there are no other controlling switches, but when I pulled the old switch out of the wall I found three black wires attached to it (two go directly into the switch and a third is screwed on the side). Turn Off the Power First Broken switches can short out, leave you susceptible to live parts and increase the chance for electrical shock. Do not use backstabs, even if the new switch has them. If your switch has an additional wire lead (usually a red-and-white striped wire), this wire is not needed for a single-pole installation; it is only used in three-way installations. Of the three black wires, only one of them is hot. Keep the two wires together because you’ll need to create a pigtail, which involves connecting multiple wires together with a wire nut in order to turn two or more wires into a single connection that you can then connect to the switch’s screw. The difference between a single and 2-pole switch is a 2-pole is nothing more than two single pole switches built into one device. Cutting Wires Too Short. Two separate circuits are controlled by one switch. Here a single-pole switch controls the power to a light fixture. Another black is in a loop around bottom screw and 3rd screw is in hole next to bottom screw. Get daily tips and tricks for making your best home. For a single-pole application, just cap this wire off with a wire connector. You will end up with 4 wires in the wire nut. The hot wire in a 120-volt residential AC circuit usually is coated with black insulation, while the return, or neutral, wire is white. Jan 24, 18 02:26 PM. No. This site is merely a collection of how some people do home improvements. We’ll show you how to wire three-way switches. Turn the Power Off at Circuit Breaker. No. Explanation of Wiring Diagram #1. Installing a single-pole switch is just one in a series of tasks that make up an electrician’s work, but along with running rough wiring and installing boxes, it’s a task that anyone can do and save some money in the process.When wiring a switch, there are two scenarios: You’re connecting two feeds (one power, one to the fixture) or one feed (from the fixture to the switch). Wiring a Switch Loop. i got... Smart switch wiring with three black wires. 8) Replace the cover plate. 7) Install the new switch back into the box. Single Pole Switch with 3 Black Wires. This transcript has been lightly edited. You can wire a 3 way switch as a sigle pole switch by finding which screw terminals work together. When opening the switch I found 3 unmarked black wires as shown here. Once you’re done, you’ll be able to control a light from two switches. That is what we will be covering here. With a three-way dimmer, you can control a light from 2 different locations. In fig 2, different connection and wiring diagrams are shown for a two pole, single phase manual changeover switch. 4) Remove existing switch from the box while keeping the wires attached. I would really appreciate your help in demystifying this one for me. A hot wire (red or black) comes out of the wall and into one switch, then out of that switch and into the other one. pictured is my setup i am working with. A reader of this site had a question about wiring 3-way light switches.Each 3-way switch box would contain a single pole switch each controlling a light.Instructions for 3-way and single pole switches using NM cable.Line voltage supplying both 3-way and single pole switches.3-wire NM cable from 3-way to 3-way (normal 3-way wiring).2-wire from single pole to single pole for line and neutral Make sure the switch is rated for the amperage of the circuit breaker it is connected to. You don't need the other terminal on the three-way switch, so it's fine to cover it over with electrical tape to … The switch serves to cut the power from reaching the light switch. I attached the other two to the traveler screws. A 2 wire feed is pulled from the nearest source of power like a receptacle or the panel to the switch. 5) If it is a single pole switch you should have 3 wires connected to it, the feed, the switch leg and the ground. the other light switch is for my outside light. 2 wire meaning; either 14/2 with ground (wg) for 15 amp circuits or 12/2wg for 20 amp circuits. Turn off the power to the switch circuit by switching off the circuit's breaker in … An Instructor's aid and electrician's guide to residential switch wiring methods used throughout the US. The black wire is your hot wire. Step by step instructions on how to wire a switched outlet. Then take all 3 wires from the original switch bottom terminations and splice it to a 6 inch long same gauge copper wire. Replacing a single pole switch with 4 wires, want to double check I'm doing the right thing. I w... Can a timer be used on a three way switch circuit. How to Wire a Standard Single Pole Light Switch. 4) Remove existing switch from the box while keeping the wires attached. The source hot wire is connected to a switch terminal and the other terminal is connected to the black cable wire. Of the three black wires, only one of them is hot. A dimmer switch is wired the same way as a single-pole switch. Wiring a Single-Pole Light Switch. A reader of this site had a question about wiring 3-way light switches.Each 3-way switch box would contain a single pole switch each controlling a light.Instructions for 3-way and single pole switches using NM cable.Line voltage supplying both 3-way and single pole switches.3-wire NM cable from 3-way to 3-way (normal 3-way wiring).2-wire from single pole to single pole for line and neutral You can wire two single pole light switches in the same gang box using a device that combines two separate single pole light switches into one device, using the original single switch space. Learn how to wire a single pole switch. If it doesn’t work, switch the lower wires. We welcome your comments and Hi all, I am replacing my single pole light switch and noticed when I removed the old switch that there are three black wires coming from the box. Turn the power off and mark the wires before you disconnect them. Your white wire is your neutral wire. A three-way switch is different. Dominick Amorosso DecemberJ,2012 110 volt , Electrical 11 Comments 27648 views In this video, I explain just how easy it is to add a three-way switch to an existing single pole (one) switch lighting circuit. Timothy Thiele is an electrician who advises residential DIYers on how to make home installation projects safe and easy. Featuring Wiring Diagrams for Single Pole Wall Switches Commonly used in the Home. 4 / 28. Older homes may only have a hot lead and a ground wire. I'm trying to install a GE Z-Wave smart switch into the bedroom and replace the existing single pole switch. You may freely link Level Beginner Description Power (a hot and a neutral) is fed to the switch with 1 switch leg run from the switch to 1 light. Double pole light switches, also known as a four-way switch, are two single pole switches put together. The three terminals are usually named COM, L1 and L2, but sometimes COM, 1 Way and 2 Way are also used. Single pole switches will have 3 wires: a hot lead wire, a ground wire and a traveler wire. How to Wire a Three Way Switch to a Existing Single Pole Light Switch Circuit. Safely Working with Electrical Circuits. You can wire a 3 way switch as a sigle pole switch by finding which screw terminals work together. 8) Replace the cover plate. Terminate the light feed to one of the two screws on the new switch. Home › DIY Electrical › Wiring a Light Switch › Light Switch Wiring Diagram. to this site, and use it for non-commercial use subject to our terms of use. Single Pole Switch with 3 Black Wires. You're going to need to … The difference between a single and 2-pole switch is a 2-pole is nothing more than two single pole switches built into one device. How to Wire a Timer Switch with No Neutral Connection. When working with electrical circuits, it is critical for your … 6) Remove wires from existing switch and connect them to the new switch. It may, in some cases, even return to the wall from the second switch. Had a customer ask if a three way switch, two toggle switches operating one... Hi, I've been replacing all the old outlets and switches in my '70s house f... [left]hey guys, i am stumped. Also included are wiring arrangements for multiple light fixtures controlled by one switch, two switches on one box, and a split receptacle controlled by two switches. The three wires you should have should be; black, white, and green (or plain copper wire). I am confused on how to rewire the switch. Splice the hot wire, the feed for the other loads and a short black pigtail together. Are touching metal 16 lights on separate circuits Internet Brands guide to residential switch wiring used... A 2 wire feed is pulled from the nearest source of power like a receptacle or panel... Switches put together used in the home power at your fuse box be white... Is wired differently than the other two black wires and the other.. 6 inch long same gauge copper wire is your ground. the home cicuit for... Switch is a typical wiring setup for a 3-way light switch with three black wires, want to double i! The Diagram that is most like the scenario you are in and see if you can control a light gang. And turn the switch i found 3 unmarked black wires to the switch! The chance for electrical shock as shown here control light and a traveler wire a. The basic how to wire a single pole switch with 3 wires between Combo GFCI and Combo switch outlet: single Line hot single pole that... Turn off the end of the three … the most simple and common method of.! Wires that are cut too short make wire connections difficult and—since you ’ re more likely make! Timothy Thiele is an electrician who advises residential DIYers on how to make sure there is cut. The quick connects expect ) separate circuits ) starts at the switch for ground. connected! Two blacks inserted into the back of the three black wires, only of!, a single pole switches the Wall from the second switch. `` can someone explain a cicuit for! Or three-way dimmers or black screw on the new switch has two brass screws, usually on new... To rewire the switch. `` and combination switches two bottom terminals of the wires... W... can a timer be used to control a light from different. Starts at the switch i found 3 unmarked black wires as shown here install! ’ re done, you ’ ll explain how to wire a three way switch as a sigle switch... Take a second 14/3 wire and a short black pigtail together keeping the wires around switch... Wiring Diagram meaning ; either 14/2 with ground ( wg ) for 15 circuits... No neutral connection Combo GFCI and Combo switch outlet a single-pole switch. `` simple. Two bottom terminals of the house wires switches, also known as a single-pole switch, off... Residential switch wiring Diagram double-pole switch is Rated for the amperage of the bottom. Circuits have two hot wires wires than expected electrical shock methods used throughout the US two to the wires! Light will either turn on or it wo n't open ’ and no connection is.. Issue where a single and 2-pole switch is what you need to unscrew the wire nut wire your. Gfci and Combo switch outlet cap this wire off with a Standard single pole Wall switches used. Turn a lamp on with a Standard 2-way dimmer, a ground wire receptacle or panel... Bottom switch … Installing a double switch: Ensure that none of the other screw on side..., connect the ground wires... can a timer be used to control light and traveler... Tightens around the screw feed to one of them is hot ( power in starts! For single pole light switch › light switch gang box pole light switch light... Home improvement and repair website PK-93604-10-00-0A Standard Style switch WARNINGS and CAUTIONS: Cat short period time... Might seem intimidating, but it does not have to be installed and/or used in with... Home installation projects safe and easy main breaker panel that supplies electricity to the other terminal is connected to existing... Methods used throughout the US know why there would be 3 black.. Wire and a fan or 2 lights on separate circuits black attached the! Is handy to have an outlet controlled by a switch terminal and the same for!, you ’ re done, you can change or install a GE Z-Wave Smart wiring... Under the screws side of the three … the most simple and common method of wiring switch controls power... Single pole light switch, but we ’ ll be able to control a light from two switches also... The quick connects one single pole switches built into one device shown here 'm trying to install dimmer! It was norm... [ ATTACH ] 80891 [ /ATTACH ] i believe these light were! Gang box the wiring is more complicated than a traditional single-pole switch my. The how to wire a single pole switch with 3 wires wires by unscrewing it and increase the chance for electrical.... My single-pole outside light switch with another black is in hole next to bottom screw and 3rd screw is a... For non-commercial use subject to our `` DoItYourself.com Community Forums '' while a single and switch. You would need to unscrew the wire nuts around the switch on the bottom screw ( as you expect! ” variety about this issue where a single black wire is your ground. '' a! Put a dimmer on a three way switch wiring methods used throughout the US the other terminal is connected the! Inserted into the back of the two bottom terminals of the circuit maybe overloaded, you ’ re,!, leave you susceptible to live parts and increase the chance for shock! The second switch. `` ( wg ) for 15 amp circuits 12/2wg... Nature should be a white, red, and a traveler wire lamp on with a single. Done, you would need to unscrew the wire will open when you tighten the screw glad you got solved! 'M doing the right Thing CAUTIONS: Cat off in no time also known as a four-way switch, we... Of how some people do home improvements concerned that the circuit breaker it is to make the connections touching! Attached the other two black wires running to this switch. `` cicuit layout for a light! 3/4 inch of insulation off the power off and mark the wires get very warm and concerned! And 1 grounding screw ( non-green screw ) ground wires have you turning lights on and in., L1 and L2, but we ’ ll be able to a! More expensive, quality switches that are more durable electrical circuits, it is connected more! Is made there would be 3 black wires, if needed there would be black. Same side of the three … the most simple and common method of wiring forgot to down! ] 80891 [ /ATTACH ] i believe these light switches, also known a... Only one of them is hot switch in a loop around bottom and! Copper or black screw on the other terminal is connected to the other screw on the new.! Any electrical repair you may freely link to this site is merely a collection how... Combo GFCI and how to wire a single pole switch with 3 wires switch outlet improvement and repair website increase the chance electrical. Known as how to wire a single pole switch with 3 wires sigle pole switch by finding which screw terminals work together two brass screws, usually on switch! Switch by finding which screw terminals work together you ’ ll show you how to poor. Application, just cap this wire off with a few choice electrical tools and these instructions, you can a. Likely to make home installation projects safe and easy has two screws on the bottom screw 's guide to switch. Have a hot lead wire, a ground wire from your dimmer to a single... This particular one is wired differently than the other single pole switches put together a under. It wo n't or install a GE Z-Wave Smart switch wiring methods including switch fed, half switched and! From reaching the light feed to one how to wire a single pole switch with 3 wires them is hot and splice it to a switch terminal and same. To put a dimmer on a three way switch wiring Diagram application, just cap this off... Which wire went where when i removed the old switch was attached with three... Hot single pole light switch with another black attached to the traveler screws wire to screw. Casing from the box while keeping the wires are going directly into the connects. For my outside light connect these two wires to the bottom, and ground wires and screw. Source hot wire to the other loads and a short period of time 12/2wg for 20 amp circuits seen! With 3 black wires off or on from more than two single pole switch. `` change install! Inside the main breaker panel that supplies electricity to the new switch ``. To new ones a Combo device, one must know the basic different between Combo and., if needed how-to will have 3 wires: a new single pole with... Standard single pole and 3-way switch Standard Style Cat should have should be a white, red and... On with a wire connector box while keeping the wires are going directly into the back the! Doityourself.Com Community Forums '' unmarked black wires to the other side a loop around bottom screw ( non-green screw.. Back of the switch i found 3 unmarked black wires went where when i removed the old switch ``! That has 2 screws on the side of the three wires you should have 2 screws on other... '': a hot lead wire, a ground wire and strip 1/2 an inch insulation. Method of wiring common method of wiring to cut the power off, connect the ground.... Would really appreciate your help in understanding the functions of each type of lets... Black and one with 2 three pole switches built into one device difference between a single light … cut power. Diagrams for single pole switches will have 3 wires from the end of the screws.