1 terminal is for the input. Here is a diagram of a spdt toggle switch.
Led Indicator Spst Weatherproof Round Rocker Switch
Spst toggle switch wiring diagram. Pin 2 is where the accessory that the switch is going to turn on is connected. You can see that a spst toggle switch only has 2 terminals. Below is the wiring schematic diagram for connecting a spst toggle switch. Perhaps the most common rocker switch on the planet the v1d1 b60b is a spst standard on off rocker switch. Pin 3 is where the switch is either connected to ground or left open. It makes one of two connections.
The diagram below represents the schematic diagram for a spst rocker switch. The other terminal is for the output. When open they disconnect the circuit so that current cannot flow to the load. Terminal 2 is connected to power. Pin 1 is where the rocker switch receives the input power. An example circuit of a spst toggle switch is shown below.
A wiring diagram is a streamlined standard photographic depiction of an electrical circuit. Terminal 1 is connected to one load or accessory terminal 3 is connected to another load or accessory. Terminal 1 is connected to one load or accessory terminal 3 is connected to another load or accessory. Here is a diagram of a spdt toggle switch. Spst toggle switches function as simple on off switches. The switch is always making one of the two connections and flips between them.
When closed current can flow and power the load. This wiring diagram applies to several switches with the only difference being the color of the lights. Variety of spdt toggle switch wiring diagram. Shown can be a 6 for white c for red or x for blue. A spdt is a bit more sophisticated. It shows the elements of the circuit as simplified forms and also the power and also signal links between the tools.
Spdt toggle switch single position dual throw xx. Here is an example of how a spst might be wired to power a light.

















