The dpdt relay double pole double throw is quite interesting and can be used in various scenarious including for changing the direction of a motor as you can see in the picture below. When you need to control a dc motor such as a dc linear actuator you usually need to be able to swap the polarity on the wires going to the motor.
Safety Precautions Of General Purpose Relays Cautions For
Dpdt relay reverse polarity. How to connect a dpdt relay in a circuit. I have a machine that i built for hunting that swims duckdecoys back an forth that mimics a live group of ducks and would like to control it by an adjustable timer to automatically reverse the direction of the motor instead of having to hit a switch back an forthheres what i need exactly a timer that is adjustable by a knob that will switch direction of motor after a certain time an. The problem is that my relay doesnt have the same post identifiers that are listed in anotherbrians picture. I have an r14 11d10 12 dpdt relay and the posts are in 2 columns of 4 labeled 1 8 with numbers 7 and 8 turned 180 degrees. I am currently using a raspberry pi to control the speed of a 12v dc motor and it works perfectly fine right now like this. In this article we go over how to connect a double pole double throw dpdt relay in a circuit.
Dc motor reverse polarity relaymotor reverse polarity delay relay time delay relay module with adjustable reverse polarity for 2a drive current motor dc 56912v. In order to know how to connect a dpdt relay you must know what each pin terminal represents and how the relay works. A double pole double throw relay comes with 8 terminal points. A double pole double throw switch is used for this purpose but you have to wire it up correctly to reverse the polarity going to the linear actuator. It has 2 terminals and 4 connectors and you can look at the dpdt relay as the equivalent of 2 single pole double throw spdt relays. I can start stop and ramp up the dc motor speed.
Gallery of Dpdt Relay Reverse Polarity
