answersLogoWhite

0


Best Answer

to wire a 3-way like this you first need to run 14/3 romex wire from the light box to each of the 2 switch locations. at each switch connect wires as follows: white wire to common screw(usually black or brass) connect red and black wire to silver colored screws, does not matter which way. in the light box you need to identify you incoming power, once you have identified that wire connect one of the white wires from the new 14/3 romex to it,secure with wire nut.the red and black in each 14/3 romex are connected red to red, black to black. this should leave you with one white wire frm a 14/3 romex, this connects to the black wire of your light fixture, the white of your light fixture connects to the white of the incoming power wire.

User Avatar

Wiki User

โˆ™ 2007-03-18 01:50:36
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar

Add your answer:

Earn +20 pts
Q: How do you wire a three-way switch when the power supply is in the light box?
Write your answer...
Submit
Related questions

Is it still within code to run power from panel to light switch then to light?

You can either go to switch or to light first. I wired house for my brother ran power supply from junction box then to each switch then to light. Passed inspection no problem


Why does bathroom light go off when you turn on bedroom light?

That's one I've never seen. Does the bathroom light turn ON when the bedroom light is switched Off? Does the bathroom light switch turn the bathroom light on and off normally when the bedroom light switch is left on? Need to answer these questions, then find where the bathroom light power comes from. It's power supply should either go directly from the power oanel to the bathroom light or to the bathroom light switch. The bathroom light switch merely acts as an interrupter for the hot leg of this power supply.


Can you power a light switch power to switch then to light from a switch beside the one you want hot the switch that you want to take power from has the white as hot switch after light?

I can not understand your question.


Which device gives the power supply in computer?

SMPS(switch mode power supply)


Why wont done light in 2006 Subaru Outback come on?

1) light bulb burned out 2) switch not turned on 3) switch broken 4) power supply disconnected


How do you use a light switch?

It sholud be wired into the high voltage power line (rather than the low voltage return line) to the lamp: high voltage supply line - switch - light - low (zero) power line.


Explain about switch mode powe supply?

A switch mode power supply incorporates a switching regulator to convert the electrical power efficiently.


Which switch supply power to a computer?

normally the power button :)


What is the full form of NLX switch mode power supply?

what switch


How can you wire and control 3 lights from 1 switch?

This is simple. First the wire coming from the power supply go to the switch. Then it goes to the first , the second and the third light. Since the switch comes first all three light will be controlled by that one switch.


When switch is off of power supply output shown on the multimeter is negative voltage from power supply?

Yes.


What is the problem on your 95 rodeo if there is power to the brake light switch and switch works but will not light any brake light?

Power is being interrupted; the turn signal switch is a power juction see if the power is flowing thru it.


SMPS stands for?

Switch Mode Power Supply


How can you determine if their is power at a light switch?

Use a volt meter to measure the voltage to neutral on each side of the switch. By turning the switch on and off and monitoring the voltage on one side and then the other, you can determine the supply and load side of the switch.


Is it normal for tester to show hot on a light switch with it in the off position and no power going to the light it controls?

Yes. Even with no power to the light, there is still power to the switch. To power off the switch you usually need to open a circuit breaker.


Full form of smps?

Switch Mode Power Supply


Why would there be no power to a switch?

The upstream supply has been interrupted.


What is function and purpose of switch?

for power supply or simply on and off


Is a switch used to supply power to the computer system?

SMPS


Is a stop switch wired in series?

A stop switch is wired in series with the power supply and the load.


What is the use of smps?

SMPS stands for switch mode power supply it gives power supply to our computer so that our computer runs.


Power supply with red led light?

If you are referring to a switched UK-style socket outlet fitted with a led, or a wall switch fitted with a led, then the led merely indicates that the socket outlet switch or wall switch is in the 'on' position.


How do you turn on AT power supply?

AT power supplies have a manual power switch function. Usually on the Power Supply itself, but some times wired to the case. Check your power wiring diagrams.


How do you install a doorbell with four wires both having black and red wires?

It depends on what the wires are connected to and where the power supply is located. If the switch is lighted power has to get to the switch for the light. With a lighted switch you have a hot supply side, a neutral and then the wire going to the bell. So if Black 1 and Red 1 are supply voltage you would connect Red 1 to the hot side of switch, Black 1 would go to common as would Black 2. Red 2 would go to Bell side of the switch.


What is the function of a power switch on a microscope?

In a compound Microscope, Power Switch turns on the lamp( Light source)