It is also called a changeover switch.
Single pole single throw symbol.
A single pole single throw spst switch is a switch that only has a single input and can connect only to one output.
An example is a light switch.
This switch can be on in both positions switching on a separate device in each case.
Single pole double throw.
Spdt single pole double throw.
Double pole single throw dpst a pair of on off switches which operate together shown by the dotted line in the circuit symbol.
A single pole double throw switch can serve a variety of functions in a circuit.
The two terminals are normally disconnected open and are closed when.
A 2 way changeover switch directs the flow of current to one of two routes according to its position.
This means it has one input terminal and two output terminals.
This means it only has one input terminal and only one output terminal.
Some spdt switches have a central off position and are described as on off on after selecting the spdt symbol you can change the switch position up center or download by the action button.
A simple on off switch.
When the switch is closed the circuit is on.
A single pole double throw spdt switch is a switch that only has a single input and can connect to and switch between 2 outputs.
The two terminals are either connected together or disconnected from each other.
A dpst switch is often used to switch mains electricity because it can isolate both the live and neutral connections.
Single pole single throw.
For example a spdt switch can be used to switch on a red lamp in one position and a green lamp in the other position.