Double Pole Double Throw Relay Schematic. Double pole double throw toggle has 2 input terminals and 4 output terminals. This is the diagram below to learn all the pin terminals of a double pole double throw dpdt relay. The polarity of the voltage does not matter.
A positive and negative voltage can be placed on either end. An application for this switch is for reversing a direct current dc electrical motor.
Thus a double pole switch has three terminals.
Thus a double pole switch has three terminals. Change motor direction with dpdt relay as you can see in the schematic the 12v battery or use other voltages is connected with the plus at terminal t1 and minus at terminal t2. 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. A double pole double throw dpdt switch is a three selection electrical device in which there is one off and two on positions.
