Double Pole Double Throw Relay Diagram

Place the relay s rated coil voltage on these terminals.

Double pole double throw relay diagram. We re going to connect a double pole double throw relay to a circuit to light up leds. A double throw switch connects an input terminal to one of two output terminals. Fig 1 2 dpdt terminal 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.

This is the circuit below. This is the diagram below to learn all the pin terminals of a double pole double throw dpdt relay. When the relay isn t powered both the red led and the dc fan are on. 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 the switch is in one position the common terminal is connected to the a terminal so current flows from the common terminal to the a terminal but no. Basically a double pole double throw relay is a electrometric relay which two common points 2 normally close and 2 normally open points. Sp and dp refer to single pole and double pole st and dt refer to single throw and double throw. The 2 coil terminals is where the voltage is placed in order to energize the coil.

Dp switches control two independent circuits and act like two identical switches that are mechanically linked. But most frequently used relays are spdt relay and dpdt relay both are acts as electromechanical switch. Single pole double throw spdt relay contains two coil terminals and common terminal then two switching terminals n o normally open n c normally close if there is not enough dc supply in. In this post you will complete learn about the working of double pole double throw relay also known with name of the dpdt relay.

What do spst spdt dpst and dpdt mean. Pole refers to the number of circuits controlled by the switch. Dpdt double pole double throw. When the relay is powered the red led and the fan shut off and the green led and the dc motor turn on.

The other two terminals are often referred to as a and b. 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. Sp switches control only one electrical circuit. Thus a double pole switch has three terminals.

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. 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.