The center position is off. An spdt switch routes one input circuit to one of two output circuits.

Rocker Switch Wiring Diagrams New Wire Marine
Double pole single throw toggle switch wiring diagram. A double throw switch can also have a center position such as on off on. Spdt single pole double throw. Single throw closes a circuit at only one position. Double switches sometimes called double pole allow you to separately control the power being sent to multiple places from the same switch. An application for this switch is for reversing a direct current dc electrical motor. A double pole double throw dpdt switch is a three selection electrical device in which there is one off and two on positions.
The dpst switch for example has four terminals however is a double pole dp and not a four pole 4p switch. Sp switches control only one electrical circuit. A double pole single throw dpst switch controls the connections to two wires at once where each wire only has one possible connection. Double pole single throw switch dpst circuit. This type of switch is sometimes called an ab switch because it lets. One for the input and one for the output.
The motors two power leads are reversed at one of the switches screw terminals. In other words its like two simple switches controlled by a single actuator. 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. Spst single pole single throw. What do spst spdt dpst and dpdt mean.
When the switch is connected one way for circuit a and circuit b the lamp and led will both be on. When the dpdt switch is switched one way flipped upward in the diagram the lamp and buzzer are both on while the. Below is an example of a circuit which utilizes a double pole single throw switch. Below is an example of a circuit which utilizes a double pole double throw switch. A double switch allows you to operate two lights or appliances from the same location. You can see above how a double pole double throw switch can allow a circuit to be in 1 of 2 modes.
You can see above how a double pole single throw switch can be used to put a circuit in any of 1 of 2 modes. An spst switch has two terminals. Pole refers to the number of circuits controlled by the switch. Double throw closes a circuit in the up or down position on on. Double pole double throw switch dpdt circuit. A basic onoff switch that turns a single circuit on or off.