What Is a Double Pole Double Throw Switch

Double Pole Double Throw Switch generally has six terminals, with the two in the middle being input terminals, and the four on the sides as output terminals. It can control up to four devices at the same time and also manage the forward and reverse functions of motor devices.

Double Pole Double Throw Switch Circuit

Below is an example of a Double Pole Double Throw Switch control circuit diagram.

With the function diagram and schematic described above, you can replace it with your device to build your setup.

The switch mentioned above is an integrated DPDT switch. There are also separate button switches, each controlling different circuit connections, enabling control of one circuit being powered while the other is off, essentially combining two DPDT switches.

Additionally, DPDT switches have a momentary unidirectional return feature (ON)-OFF-ON, and also a bidirectional momentary return (ON)-OFF-(ON). These features allow for momentary control of motorized devices.