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The black and white (neutral) wires connect to an unswitched voltage supply. The red wire and the same white (neutral) wires connect to the load.

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โˆ™ 2011-11-25 08:00:54
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Q: How do you wire a 3 way dimmer switch that has one red wire one black wire and one white wire?
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How do you install a dimmer switch black wire black wire and green wire to some existing black white wire?

Sounds like you are are installing a single pole switch (your load is controlled from one location only). If your existing switch is hooked up to a black and a white wire you are dealing with a switch loop and that white wire is being used as a hot wire. Make sure the circuit breaker is off of course, and hook up the black wires on your dimmer to the existing black and white wires on the original switch (polarity doesnt matter here) the green wire on the dimmer is a ground and should be hooked to a bare copper wire or green wire in the box if it is there.


How do you install a dimmer switch black wire red wire and green wire to some existing black and black wires?

Remove the old single pole switch. Connect the green dimmer wire to the ground wire. Now connect the black dimmer wire to the black wire that is the hot wire (wire carrying the electrical current into the box). Connect the red dimmer wire to the other black wire.


How do you install a dimmer to a light installed with W wire B wire and ground W running into the switch box if the switch box has power from B wire W wire and ground?

If you have one wire into your switch box for your light. this is called a switch leg, the dimmer should be wired across the black and white wire wires.


How do you wire a 3-way dimmer switch that has two red wires and one black and one green?

you can only have one dimmer, the other switch needs to be not a dimmer. the green wire is ground, it connects to a bare copper wire found in the box, or to the box itself, if the box is metal. the black wire is"common" it either connects to the wire found in the box that has power in it or to the black wire that goes to the light. the 2 red wires are"travelers" they connect to the wires found in the box that go from switch to switch. if you don't know how to check which wire does what( continuity), it is possible to keep changinging the connections until the switch works. you will want to do this with a conventional switch, and install the dimmer afer you identify what wires are travelers and wich are common. you will destroy a dimmer switch by searching for the right connection. once you have identified the common wires, it will be on the black screw of a 3way switch; you can put that wire on the black wire of the dimmer. one red goes on one traveler, the other on another traveler. there might be a white wire in the box, if it is connected to other white wires and not to the switch, leave it alone. if a single white wire is connected to old switch, it may be a traveler.you will connect a red dimmer wire to this. opening the other switch location will show you if the white wire is used as a traveler.the black wire has to be either power coming in, or the wire going to the light. the reds are just connecting the 2 switches.


How do you wire a dimmer switch that has one yellow one red and one black wire?

Very carefully.


How do you wire a 1-way dimmer switch with a red and black wire only?

Connect the black wire to the incoming hot wire and the red wire to the out going load.


Is it possible to wire a dimmer switch off another dimmer switch for a completeley different light?

No, the dimmer switch needs its own individual circuit power supply to feed the fixtures connected to it. The black of the second dimmer switch can not be connected to the red wire of the first dimmer switch. Now if you are talking about using a common "hot" to feed two dimmer switches then this can be done. The neutrals will be common also. So what you should have is two black wires connected together with the incoming "hot". Two neutrals connected together with the incoming white. The red from each dimmer is then connected to its own individual fixture load.


How do you install a dimmer switch black wire black wire and green wire to some existing black white wires?

Answer for USA, Canada and countries running a 60 Hz supply service.If this is a replacement from an existing wall switch to a new dimmer switch to replace the old wall switch, this is what you need to do. The two wires that were connected to the switch are removed and reconnected to the new dimmer. Don't worry about the white wire as it is not a neutral in this occasion. The white wire is a switch leg and as such it should have been identified by a piece of black tape wrapped around it to identify it as a current carrying conductor. The green wire from the dimmer switch is a ground and is connected to the ground terminal in the switch box.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.


Installing sunpro tachometer to 1990 Nissan sentra dimmer switch which wire does the white wire connect to from tachometer to dimmer switch?

ok. the first thing u do is unplug the ignition coil and find a red and black wire and just kinda skin it and touch it when the car is on to see any movement and the dimmer switch pull it out and find a green and blackwire hook the white wire up to that and test the lights you know turn the head lights on everything else is instructions when you buy the tach.


How do I wire one switch to control two lights with the power coming into light?

Using 14/2 or 12/2 wire, black, white and bare. Bring the hot/black wire in the light down to the switch on the black wire, through the switch and back to the light on the white wire. Connect the white wire in the power wire to the white wire in the light. Connect the white power wire from the switch to the black wire in the light. Run the black and white wires in the first light to the second light. You should wrap the white power wire from the switch with black electrical tape to cover the white so that the next person realizes it is a power wire.


How do you wire a light and switch with the 2 wire old romex?

with a standard 1 pole light switch (one switch operating the light) it is black wire to black wire and white to white (non grounded)


What wire does the illumination dimmer wire connect to?

12v switched source. such as headlight switch or dimmer on the dash.

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