# Relay Diagram 5 Pin

By | August 5, 2023

## A Step-by-Step Guide to Reading a 5-Pin Relay Diagram

Relays are electromechanical switches that are controlled by an electrical current. They are used to control the flow of electricity in a circuit, and they can be used to switch on or off lights, motors, and other electrical devices. 5-pin relays are the most common type of relay, and they are used in a wide variety of applications. In this article, we will take a step-by-step look at how to read a 5-pin relay diagram.

### Parts of a 5-Pin Relay Diagram

A 5-pin relay diagram is a simplified representation of the relay's internal components. The diagram shows the relay's coil, contacts, and terminals. The coil is the electromagnet that activates the relay. When an electrical current flows through the coil, it creates a magnetic field that pulls the contacts together. This closes the circuit and allows electricity to flow through the contacts. The contacts are the switching elements of the relay. They are made of metal, and they are designed to open and close when the coil is activated. The terminals are the points where the relay is connected to the circuit. There are two sets of terminals: the input terminals and the output terminals. The input terminals are connected to the coil, and the output terminals are connected to the load.

### How to Read a 5-Pin Relay Diagram

To read a 5-pin relay diagram, you need to know the function of each of the pins. *

### Pin 1:

This is the coil terminal. It is connected to the positive side of the power supply. *

### Pin 2:

This is the normally open (NO) contact. When the relay is not activated, this contact is open. *

### Pin 3:

This is the common contact. This contact is connected to both the NO contact and the normally closed (NC) contact. *

### Pin 4:

This is the normally closed (NC) contact. When the relay is not activated, this contact is closed. *

### Pin 5:

This is the ground terminal. It is connected to the negative side of the power supply.

### Example of a 5-Pin Relay Diagram

The following diagram shows an example of a 5-pin relay diagram. [Image of a 5-pin relay diagram] In this diagram, the coil is connected to pin 1, the NO contact is connected to pin 2, the common contact is connected to pins 3 and 4, and the NC contact is connected to pin 5. When the relay is activated, the coil will draw current from the power supply and create a magnetic field. This will pull the contacts together, closing the circuit and allowing electricity to flow through the NO contact. The NC contact will also close, but it will not be used in this example.

### How to Use a 5-Pin Relay

To use a 5-pin relay, you need to connect it to a power supply and a load. The power supply can be a battery or a wall outlet. The load can be a light bulb, a motor, or any other electrical device. To connect the relay, you need to connect the following wires: * The positive side of the power supply to pin 1 * The negative side of the power supply to pin 5 * The load to pins 2 and 4 Once the relay is connected, you can activate it by sending a signal to the coil. The signal can be a voltage or a current. When the relay is activated, it will close the circuit and allow electricity to flow through the load. The load will then turn on or off, depending on its type.

### Conclusion

5-pin relays are versatile and easy-to-use devices that can be used in a wide variety of applications. By understanding how to read a 5-pin relay diagram, you can use these relays to control the flow of electricity in your circuits.

* [Relay Basics](https://www.learnabout-electronics.org/relays/relaybasics.php) * [How to Use a Relay](https://www.instructables.com/How-to-Use-a-Relay/) * [5-Pin Relay Datasheet](https://www.mouser.com/datasheet/2/459/G5LE-1090-1091-1092-1093-1094-1095-1096-1097-1098-1099-110

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