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First make sure the power is turned off in regard to the wires involved by checking it with the meter. The meter should also be checked on a hot circuit to ensure it is in proper working condition. Next, you should find a screw with one switch and an ohm meter at hand. With the meter, one of the leads should be touched to a single screw while the other lead touches another screw.The presence of a circuit should be indicated by a change of the reading from OL tom smaller numbers which may range from 0.1 to 3.0. Try to flip the switch while each meter lead is on the same screw. Connect the common screw to the power on a single switch and is responsible for delivering power to the other lighting switch.

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12y ago
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12y ago

The three way switch is easy if you think of it like this;

One wire in two wires out.

-S=

So power goes in on the one wire and comes out on one of the other two.

The other two wires are called travelers.

Flipping the switch changes which traveler is "hot"

Both travelers go to Second 3 way switch.

in -S========S- out

Flipping the second switch changes which traveler connects to the one wire out.

If the "hot" wire connects the one wire out is hot.

If not, it is not.

The second switch wire out goes usually to a light.

This setup is mainly for a hallway where one would need a lightswitch on each end to turn on the light.

Note: a 4 way switch goes in between the traveler wires and swaps them.

-S===X===S-

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14y ago

A 3 way wall switch is used in a circuit for two switches that can turn a light fixture on or off from two different locations. Both switches must be 3 way switches. For more information see the answers to the Related Questions shown below.

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12y ago

A three way switch circuit uses 2 switches. You can control on and off a light or device from two different locations.

Often found in stairways with one at the bottom and one at the top.

If more locations are needed any number of 4 way switches may be put between the 3 ways.

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8y ago

A 3 way switch setup allows you to control a light from two different locations.

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Q: What is the function of a 3 way switch?
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How do you wire a timer switch to a 3 way light switch?

First you need to decide what you are trying to accomplish. You can wire the Timer switch in series with or parallel to the 3-way switches. If in series then the 3-way switch function would depend on the timer state. If the Timer switch was ON then the 3-way switch could turn the connected device ON or OFF from either location. If the Timer switch were OFF the device would be OFF no matter what you did with 3-way switches. To wire in this fashion put the timer between the supply and the input to the switches. If the Timer is in parallel then if the Timer is ON it doesn't matter what you do with the 3-way switch, the device will be ON as long as the Timer is ON. If the Timer is OFF then the 3-way switches will work in their normal fashion. To wire in parallel connect the supply to one side of the Timer and the device to the other.


Can a 4 way switch be used in place of a 3 way switch?

No a 3-way is a single pole double throw. A four way switch swaps travelers.


How can you tell if the switch that you have is a 3 way or not?

3 way switches have 3 terminals. A common on and off switch only has 2.


How do you wire a 3-way dimmer and switch it in 3 locations?

One 3-way dimmer switch, one regular 3-way switch and one 4-way switch. The 4-way is wired between the two pairs of travelers from the other two switches. The common on the dimmer is tied to either the light or to the branch hot and the common on the other 3-way is tied to whichever is left (hot or the light).


How many terminals does a two way switch have?

3

Related questions

What is a Chicago 3-way?

A 3 way switch wired ---- , but works A 3 way switch wired not to code ---- , but works A 3 way switch wired not to code but it works


What way is Chicago?

A 3 way switch wired ---- , but works A 3 way switch wired not to code ---- , but works A 3 way switch wired not to code but it works


How do you wire a timer switch to a 3 way light switch?

First you need to decide what you are trying to accomplish. You can wire the Timer switch in series with or parallel to the 3-way switches. If in series then the 3-way switch function would depend on the timer state. If the Timer switch was ON then the 3-way switch could turn the connected device ON or OFF from either location. If the Timer switch were OFF the device would be OFF no matter what you did with 3-way switches. To wire in this fashion put the timer between the supply and the input to the switches. If the Timer is in parallel then if the Timer is ON it doesn't matter what you do with the 3-way switch, the device will be ON as long as the Timer is ON. If the Timer is OFF then the 3-way switches will work in their normal fashion. To wire in parallel connect the supply to one side of the Timer and the device to the other.


Can a 4 way switch be used in place of a 3 way switch?

No a 3-way is a single pole double throw. A four way switch swaps travelers.


How switch function differs from user defined functions in C?

. please give me 3 or 4 differences.one difference is that user defined can be called anytime but not for switch There is no such thing as 'switch function'


Can you replace a 3 way light switch with a standard switch and cap off the wires or can you use the 3 way switch and make it into a standard switch?

YES


How can you tell if the switch that you have is a 3 way or not?

3 way switches have 3 terminals. A common on and off switch only has 2.


What is the eletrical symbol for a three way switch?

If you have the symbol for a regular switch, a 3-way switch is the same symbol with a '3' next to it like a subscript.


What is the function of changeover switch?

Function Of Change Over Switch


How do you wire a 3-way dimmer and switch it in 3 locations?

One 3-way dimmer switch, one regular 3-way switch and one 4-way switch. The 4-way is wired between the two pairs of travelers from the other two switches. The common on the dimmer is tied to either the light or to the branch hot and the common on the other 3-way is tied to whichever is left (hot or the light).


What is the function of a switch?

The function of a switch is to break and connect the flow of electricity.


What is a 3 gang 2 way switch?

3 gang means 3 individual switches in the same single unit. 2 way means each switch can be on or off.