Switches are the most common component in electrical circuits. Among them, 3 way switches are often used in lighting systems where a light is controlled by two switches. In this article, we will discuss the wiring diagram of a 12 volt 3 way switch, which is used in many applications such as RVs, boats, and off-road vehicles.
Overview of 12 Volt 3 Way Switch
A 12 volt 3 way switch is a type of switch that allows you to control a single light from two different locations. It consists of three terminals, which are commonly labeled as common, traveler 1, and traveler 2. The common terminal is connected to the power source, while the two traveler terminals are connected to the two switches. By toggling the two switches, you can turn the light on or off from either end of the circuit.
Applications of 12 Volt 3 Way Switch
12 volt 3 way switches are commonly used in mobile applications like RVs, boats, and off-road vehicles, where lighting control is required from multiple locations. They are also used in residential buildings where a room has two entrances and both entrances require light control.
Wiring Diagram of 12 Volt 3 Way Switch
The wiring diagram of a 12 volt 3 way switch is shown below:
| Terminal | Color | Description |
|---|---|---|
| Common | Black | Connected to power source |
| Traveler 1 | Brass/Gold | Connected to one switch |
| Traveler 2 | Silver | Connected to the other switch |
In the wiring diagram, the black wire is connected to the common terminal, while the brass/gold and silver wires are connected to the traveler 1 and traveler 2 terminals, respectively. The two switches are connected to the traveler terminals with jumper wires. The circuit is completed by connecting the light fixture to the power source and the common terminal.
FAQs
What is a 3 way switch?
A 3 way switch is a type of switch that allows you to control a single light from two different locations. It has three terminals, which are commonly labeled as common, traveler 1, and traveler 2.
What is the difference between a 3 way and a 4 way switch?
A 4 way switch is a type of switch that allows you to control a single light from three or more locations. It has four terminals, which are commonly labeled as common, traveler 1, traveler 2, and traveler 3. A 3 way switch, on the other hand, has only three terminals and is used to control a single light from two locations.
How do I wire a 3 way switch?
To wire a 3 way switch, you need to connect the common terminal to the power source, and the two traveler terminals to the two switches. The two switches are connected to the traveler terminals with jumper wires. The circuit is completed by connecting the light fixture to the power source and the common terminal.
What is a 12 volt 3 way switch used for?
A 12 volt 3 way switch is commonly used in mobile applications like RVs, boats, and off-road vehicles, where lighting control is required from multiple locations. They are also used in residential buildings where a room has two entrances and both entrances require light control.
Can I use a 12 volt 3 way switch for a 120 volt circuit?
No, a 12 volt 3 way switch is designed for low voltage circuits and cannot be used for 120 volt circuits. Using a 12 volt switch for a 120 volt circuit can cause damage or electrical shock.
Conclusion
12 volt 3 way switches are commonly used in mobile applications and residential buildings. The wiring diagram of a 12 volt 3 way switch is simple, and by following the correct procedure, you can easily wire the switch to control a single light from two different locations. Hopefully, this article has provided you with all the information you need about 12 volt 3 way switch wiring diagrams.
