Double Pole Double Throw Relay Schematic

A double throw switch connects an input terminal to one of two output terminals.

Double pole double throw relay schematic.

Place the relay s rated coil voltage on these terminals. In the above double pole double throw relay schematic diagram. I shown a power relay with schematic diagram. How to connect a dpdt relay in a circuit.

Look at picture 1 1 and 1 2 it consists of two common input terminals c e and both mechanically tied together to operate in the. A positive and negative voltage can be placed on either end. In this article we go over how to connect a double pole double throw dpdt relay in a circuit. 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.

The motor s two power leads are reversed at one of the switches screw terminals. A double pole double throw relay comes with 8 terminal points. 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 polarity of the voltage does not matter. Single pole single throw normally open spst no form a single pole single throw normally closed spst nc form b single pole double throw spdt form c double pole double throw dpst no 2 form c. In the diagram a1 and a2 is coil terminals of electromagnetic relay. Also a 8 pin glass finder types relay with also a dpdt relay with diagram.

One of the terminals is called the common terminal. Fig 1 2 dpdt terminal diagram. The 1 terminal is common which is normally close with 2 and normally open with 3. 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.

In order to know how to connect a dpdt relay you must know what each pin terminal represents and how the relay works. The 2 coil terminals is where the voltage is placed in order to energize the coil. An application for this switch is for reversing a direct current dc electrical motor. Dpdt relay double pole double throw.

Double pole double throw toggle has 2 input terminals and 4 output terminals. Here pole indicates individual input circuit and throw indicates the output circuit. This is the diagram below to learn all the pin terminals of a double pole double throw dpdt relay. The following are industry accepted relay schematics and forms that gigavac uses for most of its relays.