A toggle switch is a type of electrical switch that is actuated by moving a lever back and forth to open or close an electrical circuit.

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A toggle switch allows you to open or close an electrical circuit by sliding a lever back and forth across them. There are two basic types: toggle switches that stay in contact and toggle switches that only work for a short time.

On/off control in the form of a physical toggle switch. Toggle switches are the most effective way to change the state of system functionality and preferences. Toggles can replace two radio buttons or a single checkbox so that users can choose between two different states.

What is the purpose of a toggle switch?

Pushing a handle or lever on a toggle switch controls the flow of electricity to a particular device. When the switch operator presses the toggle (the actuator), the armature positions the contact to initiate or stop an electrical current.

Why are there three pins on switches?

The switch can either have a connection to the ground at pin 3 or be left open at that position. This is the pin from which the rocker switch gets its power. This is the pin that makes the connection to the circuit’s load, which is whatever the rocker switch controls while it is in the “on” position. For example, lights, motors, and so forth.


  • Three-Position SPDT ON-OFF-ON Toggle Switch with 3 Terminals.
  • Each switch consists of two hex nuts, a flat washer, and a locking washer.
  • Simple installation; compatible with any 6mm hole.
  • The stated electrical specifications are 3A 250VAC or 6A 125VAC, although we recommend utilizing it at 2A at 24V.
  • This is a three-terminal-pin momentary switch.
  • It’s simple to set up.
  • In use, it is long-lasting.
  • It’s suitable for both low and high-voltage circuits.
  • Ideal for turning on or off lights or motors.


  • Type: ON / OFF / ON
  • SPDT connector with three terminal pins
  • Rated Voltage and Amperage: 16A at 250V AC
  • Lifespan: greater than 50,000 cycles
  • Electrical durability: greater than 10,000 cycles, Solder-lug terminals with three pins.
  • Lever with a round shape
  • The diameter of the mounting hole is 0.25′′.

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