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Red is the alternate hot leg in a 2 way switch circuit

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15y ago

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What does switch leg mean?

The term switch leg really means switched leg. It is the wire that comes off of the bottom terminal of a switch and when the switch is turned on becomes hot. This is the leg that turns the load off and on.


Can you extend power through a 3 wire switch leg for a half switched outlet to a new switch for a new light?

Yes, you can extend power through the 3-wire switch leg to a new switch for a new light. You would need to connect the hot wire to the common terminal on the existing switch, then extend the hot wire to the new switch, along with the traveler wire. At the new switch, connect the hot wire to the common terminal and the traveler wire to one of the traveler terminals.


Light switch has 4 wire colors red and white and green and black which is the hot wire?

You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.


How do you wire a light switch with only black and red wires?

The black wire is typically the hot wire that carries the electrical current, while the red wire is often used as a traveler wire. Connect the black wire to one terminal of the light switch and the red wire to the other terminal. Make sure to turn off the power before wiring the switch to avoid electrical shock.


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.

Related Questions

Is the white wire in the thermotat a neutral?

the thermostat has a black(line) wire to it, and a red wire going to it. the red wire then connects to the neutral wire. the black and red are like a leg switch.


What does switch leg mean?

The term switch leg really means switched leg. It is the wire that comes off of the bottom terminal of a switch and when the switch is turned on becomes hot. This is the leg that turns the load off and on.


How to wire a switch leg correctly?

To wire a switch leg correctly, connect the hot wire to the common terminal of the switch, the switched hot wire to the other terminal, and the neutral wire to the neutral terminal. Make sure to turn off the power before starting and follow the wiring diagram for your specific switch.


Can you extend power through a 3 wire switch leg for a half switched outlet to a new switch for a new light?

Yes, you can extend power through the 3-wire switch leg to a new switch for a new light. You would need to connect the hot wire to the common terminal on the existing switch, then extend the hot wire to the new switch, along with the traveler wire. At the new switch, connect the hot wire to the common terminal and the traveler wire to one of the traveler terminals.


Light switch has 4 wire colors red and white and green and black which is the hot wire?

You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.


What is the purpose of the red wire on a light switch?

The purpose of the red wire on a light switch is to carry electrical current to the switch, allowing it to control the flow of electricity to the light fixture.


When is white wire hot?

In residential wiring, if it is used as a switch leg or in 3 wire 240 volt circuits.


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.


What is the purpose of the red wire in a light switch?

The purpose of the red wire in a light switch is to carry electrical current from the switch to the light fixture, allowing the switch to control the flow of electricity and turn the light on or off.


How do you wire a light switch with only black and red wires?

The black wire is typically the hot wire that carries the electrical current, while the red wire is often used as a traveler wire. Connect the black wire to one terminal of the light switch and the red wire to the other terminal. Make sure to turn off the power before wiring the switch to avoid electrical shock.


Where should red colour wire be attached in a plug pin?

There is insufficient information to answer your question. A red wire can be used as a switch leg, it could also be the other half of a 240 V circuit or even the feed for a fan circuit, just to name a few possibilities.


How do you properly wire a single pole switch with red and black wires?

To properly wire a single pole switch with red and black wires, connect the black wire to the brass screw terminal and the red wire to the silver screw terminal on the switch. Make sure to turn off the power before starting and follow the manufacturer's instructions for your specific switch.