A 3 pin switch works by connecting or disconnecting circuits using three terminals. Typically, one pin is for the input (power source), and the other two are for output connections. Depending on the switch type—like SPDT (Single Pole Double Throw) or ON-OFF-ON—the switch lets you control which output receives power.

• Pin 1: Input (common)
• Pin 2: Output 1
• Pin 3: Output 2

Wiring a 3 prong switch usually involves connecting the common terminal and two output terminals.

1. Identify the pins: Common, Output 1, and Output 2 (often labeled on the switch).
2. Connect the power source wire to the common pin.
3. Attach the device wires to Output 1 and Output 2.
4. Secure all connections and check for proper insulation.

Three pin switches are commonly referred to as SPDT (Single Pole Double Throw) switches or ON-OFF-ON switches. These types are popular in applications where you need to control two circuits from a single input, such as lighting setups, household appliances, or automotive controls. The specific name may vary based on the switch's function, but "3 pin switch" generally points to these versatile options.

To connect a 3 pin switch, start by identifying the common and output pins.

• Connect the power supply wire to the common pin.
• Attach the device or load wires to the two output pins.
• Double-check all connections for security and proper placement.

3 pin switches are used in a variety of settings, including home improvement projects, automotive controls, industrial equipment, and DIY electronics.

• They’re ideal for toggling between two circuits or functions.
• Common in lighting systems, appliance controls, and marine applications.
• Often found in keyboards, wall plates, and dimmer setups.