Single Pole Double Throw Switch Diagram. It is also called a changeover switch. This is the diagram below to learn all the pin terminals of a single pole double throw spdt relay.
When you make use of your finger or even the actual circuit together with your eyes it is easy to mistrace the circuit. Switch wiring shows the power source power in starts at the switch box. The number of throws indicates how many different output connections each switch pole can connect its input to.
Circuit electrical wiring enters the switch box.
A double pole single throw dpst switch controls the connections to two wires at once where each wire only has one possible connection. When the switch is closed the two terminals are connected and current. This switch can be on in both positions switching on a separate device in each case. 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.
