Question about Electric Door Light Switch

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Pull on/off switch

I want to add the switch to a lone fluroscent fixture in my shop.
I put one lead to the white and the other to the black.
The fixture turns on but when I pull it off I blow the circuit??


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  • gnlarson Dec 01, 2008

    Thanks for helping a novice in need!!!!!!!!


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Put one wire from switch to black wiring coming in and the other to the black going to the ballast.
If you do not understand please post back

Posted on Dec 01, 2008

  • Joseph Lillie
    Joseph Lillie Dec 01, 2008

    Make sure you vote on my rating and thank you very much


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Instead of hooking up in that manner try this! I presume you Have a 14-2 or 12-2 wire either will work depends on cir. At Lt you should have wires for the fixture actually coming from fixture, A feed Hot and Nuetral(white), and the switch loop you added. Take the White from feed and tie to white from fixture. Your Done with those wire wirenut them together. Take the White From Switch loop and Tie it with the Black From feed ( This white is not a Nuetral but now a Hot)Tie together with wirenut. This send hot down to switch, Now Take Black From Switch Loop And connect to Black from Fixture. This completes the circuit, And sends Electric back to Lt. Put switch on the white and black. Your circuit blew becuase your mixed the nuetral with the Hot. I Hope this is clear let me know if you need more help

Posted on Jan 04, 2009

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What is the deal with the two permanent black wires that are both on the white half and switch half? The wiring diagram supplied does not address this.

You are installing switch plug combo with GFCI
Device has 4 screw terminals and 2 wires.
Look at markings on back of device to determine Line and Load screws.

If you are working inside junction box, there are 3 cables for example. Each cable has black and white wires. Cable1 comes from breaker box with Line wires, cable2 goes to light fixture, cable3 goes to next switch or receptacle box in the circuit.

Cable1 Line wires come from circuit breaker: Black wire connects to brass Line screw, White to silver Line screw.
Cable2 wires to light fixture connect to wires sticking out of device and are controlled by light switch.
Cable3 wires connect to Load screws. Black wire connects to brass Load screw, White to silver Load screw. This will put GFCI protection on circuit from that point forward. If you do not want that protection, then connect cable3 on same screws as cable1.

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1 Answer

How do I wire a single light to a on/off switch

Add a comment and say what wires you have in case following answer misses your mark.

As a general rule, there is one cable that comes from breaker box.
There is another cable that goes to light fixture.
Each cable has 1 Black, 1 White and 1 Bare ground.

So you have 2 Blacks, 2 Whites and 2 Grounds.
White wires twist together and are covered by wire nut.
Black wires each connect to a different brass-colored screw on light switch. In any order.
Bare ground wires connect to green screw.

If light fixture has wires, then black goes to black and white to white, and ground to ground.
If light fixture has screws, then black goes to brass screw, white to silver screw, and ground to green screw.

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Jan 03, 2011 | Electrical Supplies

1 Answer

In replacing a broken pull chain (no 3-way power here: simple pull-on/pull-off) on the 3-bulb light fixture of my fan/light combo ceiling appliance, I lost track of how to re-attach the two black wires...

I assume the switch operates the lights only. Besides the ground (green or bare) and the neutrals (4 white wires all connected together), the only wires of interest should be 4 wires (black) from the fixture and the 2 wires on your switch. Of the 4 black wires, one of them is the hot wire and the other 3 connect to the three bulbs. Connect the hot wire to either one of your switch leads and connect the other 3 wires to the other switch lead.
If you don't know which of the 4 black wires is hot you can find it by the process of elimination as follows---- connect any three of the black wires together (then supply power), if nothing lights, then the 4th wire is hot. Otherwise 2 bulbs should light. Remove one wire from this trio. If nothing lights, the wire you just removed is the hot wire. Otherwise, one bulb should light and one of these two remaining wires is the hot wire. Take one of those last two wires and connect it to one of the other bulbs. If it lights, then the wire you just moved is hot. Otherwise the one you left behind is hot. I hope this is helpful. Good luck. Be safe! Al K

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There are two issues here. The red and green wires are not standard, so rather than assume, you'll have to confirm where they go on the ceiling fixture by dropping that fixture enough to examine it. The other issue is that you have apparently bought two four-way switches - they will work, but you may have to make a change after you initially wire it up.
i'll describe how to wire this, but before you wire it this way you MUST confirm my assumption that at the ceiling fixture the red wire is connected to a black flexible wire (either for the fan or for the light) and the green wire is connected to a white flexible wire (either for the fan or for the light).
Now back to the switch box. .
You need to determine which of the black/white/ground wire sets is coming from the breaker. If this isn't obvious visually, you can check this by temporarily wiring a light to one set, have somebody turn the breaker on then off. If it lights, you got it. If it doesn't light, its the other one, but repeat the test on the other one to be sure.
Now the switches. You will only use two terminals on each switch. On each switch you will use one of the top terminals and one of the bottom terminals. Use the two terminals on the same side of the switches. (Later, if you find that your switch operates upside-down, where up is off and down is on - then you can swap a wire so that you are using two terminals that are on opposite corners of the switch.)
Connect the black wire coming from the breaker to switch 1. You also need to add a jumper wire from that terminal to the corresponding terminal on switch 2.
Connect the other black wire to the other terminal on switch 1. Connect the red wire to the other terminal on switch 2. Connect the two bare ground wires to the grounding lugs on the two switches.
The other three wires are white, white, and green. These are the neutrals and should all be connected together.

Mar 29, 2010 | Leviton 5225WSP Switch and Outlet

1 Answer

I need a diagram for home wiring, 2 gang switch and a 3 way switch.

A two gang switch will be a swith witho the the shape of a duplex outlet. with a toggle on each end. there will be two screws on each side with possibly a green screw on one of the sides. The green screw is for ground, and should be either attached to the box or a green wire all the way back to the panel. The screws on one side will be a copper brown color and you will notice a strip of metal that connects the two screws together. This is the hot or common side (usually a black wire. The two screws on the other side will be a bright copper color, and they will be the swich leads from the switch to the fixture you are attempting to power up (the wires that connect to these switch leads are probably any color but green or white). Never connect the neutral (white) wire to any part of the switch.

The three way switch will have three screws on it. One is copper brown, and the other two are bright brass in color. The dark screw is the common (black wire). the other two screws connect the runners from one switch to the other switch. The runners dont connect to anything but the other switch. On one end the common wire attaches from the switch to the power and on the other end the common wire attaches from the switch to the fixture. The white (neutral) wire does not connect to the switches, it runs from the panel directly to the fixture.

I hope this has been helpful.

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1 Answer

I want to put a switch on a existing light that has a power source from the main panel then carrys on to other wall receptacles.i just want the light to go on and off with the switch, not the receptacles.

there is a simple way and a not so simple solution, the simple solution is to take down the light fixture and replace with a pull chain fixture. I would have to know the building type commercial it hard piped and so on. In a residential setting the solution would be to install a piece of 14-2 romex between the fixture and the switch. 14-2 with ground is a flat cable with 3 wires (2 insulated and 1 bare). do not attempt with the power source on. the white insulated wire should be connected to the black wire in the fixture box, the other end of the white wire in your new piece of romex should be attached to one pole of the switch. the black wire in your new piece of romex should be attached to the black wire or gold screw of your fixture and the other end of your wire should be attached to the other pole of your switch. Now the other wire(the bare ground)if not attached will not affect the operation of the switch or light, but it is a safety which should be installed. all grounds should be connected to insure that any faulty wiring will trip the breaker saving anyone from getting shocked.

Dec 21, 2009 | Cooper Industries Cooper Wiring 2158V 3...

1 Answer

I have a live 2-wire line that used to be connected to a light with a switch built into the light fixture. I removed the fixture and put wire nuts on the live wire. What I'm trying to do is to wire the 2...

As I understand it you have a live circuit going to a light fixture that had a switch built into it. You have removed the fixture and now you want to run this wire to another location and install a switch in the circuit.

You will be extinding these two wires (white and black + ground) to the new location. No problem ... Somewhere between where you start and where you finish, you will break the black wire and install a single pole switch. All connecctions must happen inside a electrical box.

So, install the new wire in the box where you will start your extension. Run to the new switch box. You dont even have to cut the white wire. You will wrap the green or ground around the ground screw on the switch, Cut the black wire . put one end under one side screw, put the other end under the other side screw. From this box run your wire to the next box where you will install your fixture.

If you are using metal boxes, they must be grounded to the circuit. You can use pig tails for this, Best deal is to use plastic boxes that dont require grounding.

I hope this answers your question

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I'm going to guide you on how to create what is known as a "switch leg".
1- run a 12-2 w/ground wire to the light fixture from new switch.
2- connect black wire "hot wire" to the shiny bronze tinted terminal on switch.
3- connect the white wire " neutral " to the silver connection on switch.
4- connect the naked copper wire " ground " to the ground terminal on switch
5- Disconnect the two white wires in the junction box from each other.
6- Connect the ground to ground in j-box
7- Connect the black to one of the whites in j-box
8- connect the white to the other white in j-box
9- wire nut and tape all connections
Oh and be sure that you turn off the breaker before you start. Hope this helps. Good luck.

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