Double Pole Double Throw Relay Schematic

Dpdt relay double pole double throw.

Double pole double throw relay schematic.

How to connect a dpdt relay in a circuit. In order to know how to connect a dpdt relay you must know what each pin terminal represents and how the relay works. Fig 1 2 dpdt terminal diagram. Double pole double throw toggle has 2 input terminals and 4 output terminals.

A double pole double throw dpdt switch is a three selection electrical device in which there is one off and two on positions. I shown a power relay with schematic diagram. 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 positive and negative voltage can be placed on either end.

Also a 8 pin glass finder types relay with also a dpdt relay with 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. Place the relay s rated coil voltage on these terminals.

A double throw switch connects an input terminal to one of two output terminals. Here pole indicates individual input circuit and throw indicates the output 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. This is the diagram below to learn all the pin terminals of a double pole double throw dpdt relay.

Thus a double pole switch has three terminals. In the above double pole double throw relay schematic diagram. A double pole double throw relay comes with 8 terminal points. The polarity of the voltage does not matter.

The following are industry accepted relay schematics and forms that gigavac uses for most of its relays. 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. The 2 coil terminals is where the voltage is placed in order to energize the coil. 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.

Thus a double pole switch has three terminals. In this article we go over how to connect a double pole double throw dpdt relay in a circuit. The motor s two power leads are reversed at one of the switches screw terminals. One of the terminals is called the common terminal.