What do spst spdt dpst and dpdt mean. We will now go over the wiring diagram of a spst toggle switch.
Dfbd15 Spst Switch Motor Wiring Diagram Wiring Library
Spst switch wiring diagram. Pin 2 is where the accessory that the switch is going to turn on is connected. Sp and dp refer to single pole and double pole st and dt refer to single throw and double throw. Pin 3 is where the switch is either connected to ground or left open. Sp switches control only one electrical circuit. The other terminal is for the output. An illuminated rocker switch is like a spst toggle switch with an extra terminal which allows the light to work.
Spst toggle switches function as simple on off switches. Spst switches should only require two terminals. Below is the wiring schematic diagram for connecting a spst toggle switch. You can see that a spst toggle switch only has 2 terminals. Also relays can be used to switch higher draw accessories to reduce switch load and voltage drop. Theyre also a very common form of momentary switches.
Dp switches control two independent circuits and act like two identical switches that are mechanically linked. Pole refers to the number of circuits controlled by the switch. A single pole single throw spst switch is as simple as it gets. Connect the lamp 1 to the upper terminal of spst switch. The diagram below represents the schematic diagram for a spst rocker switch. Connect the lamp 2 to the common middle terminal of spdt switch shown by blue wire in the circuit diagram.
You might want to review the article on toggle switch wiring before proceeding. The switch will either be closed or completely disconnected. Spsts are perfect for on off switching. Pin 1 is where the rocker switch receives the input power. 1 terminal is for the input. Spst toggle switch wiring.
Do the proper earthing and grounding according to your local area codes. Its got one output and one input. Connect the live line or phase wire to the lower terminals of spst 1 way and spdt 2 way switches.
Gallery of Spst Switch Wiring Diagram
