The switch will either be closed or completely disconnected. Its got one output and one input.
Toggle Switch Wiring
Spst switch wiring diagram. Pole refers to the number of circuits controlled by the switch. We will now go over the wiring diagram of a spst toggle switch. Pin 2 is where the accessory that the switch is going to turn on is connected. An illuminated rocker switch is like a spst toggle switch with an extra terminal which allows the light to work. Pin 3 is where the switch is either connected to ground or left open. Spst toggle switch wiring.
Also relays can be used to switch higher draw accessories to reduce switch load and voltage drop. Do the proper earthing and grounding according to your local area codes. A single pole single throw spst switch is as simple as it gets. The other terminal is for the output. Connect the lamp 2 to the common middle terminal of spdt switch shown by blue wire in the circuit diagram. Connect the live line or phase wire to the lower terminals of spst 1 way and spdt 2 way switches.
Pin 1 is where the rocker switch receives the input power. Spst toggle switches function as simple on off switches. 1 terminal is for the input. What do spst spdt dpst and dpdt mean. Below is the wiring schematic diagram for connecting a spst toggle switch. The diagram below represents the schematic diagram for a spst rocker switch.
Connect the lamp 1 to the upper terminal of spst switch. You can see that a spst toggle switch only has 2 terminals. Spst switches should only require two terminals. Sp switches control only one electrical circuit. Spsts are perfect for on off switching. Sp and dp refer to single pole and double pole st and dt refer to single throw and double throw.
Dp switches control two independent circuits and act like two identical switches that are mechanically linked. You might want to review the article on toggle switch wiring before proceeding. Theyre also a very common form of momentary switches.
Gallery of Spst Switch Wiring Diagram
