You might want to review the article on toggle switch wiring before proceeding. Single pole single throw on off switches are the most common of the switches.

Waterwich Lighted Whip Illuminated Rocker Toggle Switch Waterproof Jumper Wires Set Dc 20a 12v 10a 24v 5pin On Off Spst Rocker Switch Auto Truck Boat
Spst rocker switch wiring. Single polethrow and double polethrow switches are by far the most common switches but triple and quadruple configurations are also available. Pin 1 is where the rocker switch receives the input power. It will be printed with v1d1 12v 20a and carling technologies. Spst on off switches are designed to turn a single device or circuit on or off. Terminal 2 is the terminal which receives the power necessary so that the loads on terminals 1 and 3 can be powered. It will have one incandecent lamp at the top of the switch that illuminates automatically when the switch is on.
There is also an illuminated push button wiring diagram hereand a complete kit wiring diagram here. Perhaps the most common rocker switch on the planet the v1d1 b60b is a spst standard on off rocker switch. Download the poles and throws datasheet. Pin 2 is where the accessory that the switch is going to turn on is connected. Click here for our automotive switches. A spdt toggle switch has 3 terminals.
Also relays can be used to switch higher draw accessories to reduce switch load and voltage drop. They are commonly denoted 3pst 3pdt 4pdt etc. The diagram below represents the schematic diagram for a spst rocker switch. Pin 3 is where the switch is either connected to ground or left open. In this video we are giving a tutorial on how to wire a rocker switch with led 6 and 7 pin wiring diagrams to control a linear actuator as well as showing how exactly a rocker switch works. Wiring an illuminated spst rocker switch this is a wiring diagram to illustrate how to wire up your spst rocker switch for your vapoven elements battery deluxediy induction heater kit though the principles should apply to most similar boards.
Terminal 1 can connect up to any load to power a certain device. An illuminated rocker switch is like a spst toggle switch with an extra terminal which allows the light to work. These switches will have two terminals on the back to connect your wires. The photograph shows a spst toggle switch when used with mains electricity this type of switch mustbe in the live wire but it is better to use a dpst switch to isolate both live and neutral. And terminal 3 can connect to any load to power any device.