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. 2 methods are explained with associated wiring diagrams.
Spdt Switch Wiring Diagram Fan H1 Wiring Diagram
How to wire a single pole double throw switch. An application for this switch is for reversing a direct current dc electrical motor. Make sure you dont just use top or bottom screws. A single pole double throw switch can serve a variety of functions in a circuit. How to wire a 4 way light switch with power feed via the light switch. Use one screw in the on position and one screw in the off position on the same side. A double pole double throw switch is actually two single pole double throw spdt switches.
It should have about 12 inch of bare wire at the end and should be formed into a hook like loop. The motors two power leads are reversed at one of the switches screw terminals. Bend the end into a loop using the wire strippers or needlenose pliers. 3 way switch single pole double throw or spdt browse lighting diagrams that use a 3 way switch you may also be interested to see how a two way switch works. Which black wire goes on top or the bottom does not matter. This means it has one input terminal and two output terminals.
You can see above how a double pole double throw switch can allow a circuit to be in 1 of 2 modes. If the wire end is in poor condition trim off the bare end then strip about 34 inch of insulation using wire strippers. Use the same clockwise wrapping technique as the ground wire to attach the black cables to the two screws. A double pole double throw dpdt switch is a three selection electrical device in which there is one off and two on positions. Essentially 2 black wires are attached to the bottom dark screw of one switch. 4 way light switch with power feed via the light.
A double pole single throw dpst switch controls the connections to two wires at once where each wire only has one possible connection. It can serve as an on off switch depending on how the circuit is wired. It is one black wire from the power source hot wire and a black wire from the neighboring switch. Below is an example of a circuit which utilizes a double pole double throw switch. Double pole double throw switch dpdt circuit. Inspect the end of each wire.
In this video i give you the characteristics of a dpdt switch and how to wire. This is how you wire a double pole double throw dpdt switch. In other words its like two simple switches controlled by a single actuator. Connect the one black wire to the bottom dark screw of the other already wire configured switch.
Gallery of How To Wire A Single Pole Double Throw Switch
