Relay Diagrams

A large collection of relay diagrams are available in this post for free! A variety of printable diagrams provided will help you in studying the structure of relay connections. Relays are switches that open and close circuits electromechanically or electronically. They control one electrical circuit by opening and closing contacts in another circuit. As relay diagrams show, when a relay contact is normally open (NO), there is an open contact when the relay is not energized. When a relay contact is Normally Closed (NC), there is a closed contact when the relay is not energized. In either case, applying electrical current to the contacts will change their state. The first relay diagram below is the standard 4 pin accessory relay connections.

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relay diagram 4 pin

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Based on the diagram above, it can be seen that in a relay diagram, the switch can be divided into two parts: input and output. The input section has a coil which generates magnetic field when a small voltage from an electronic circuit is applied to it. This voltage is called the operating voltage. Commonly used relays are available in different configuration of operating voltages like 6V, 9V, 12V, 24V etc.  Other printable diagrams for relay connections are posted below: the5 pin, 8 pin, and circuit.

relay diagram 5 pin

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relay diagram 8 pin

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relay diagram circuit

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Relays consist of a n electromagnet and also a set of contacts. The switching mechanism is carried out with the help of the electromagnet. There are also other operating principles for its working. But they differ according to their applications. Most of the devices have the application of relays. By looking at the diagram below we can go through the basic concept of a relay and how they operate. This diagram will show you how simple it is to control motors, lights, valves, other relays and any type load you want.

relay diagram light

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relay diagram wiring

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relay diagram electrical

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Help yourself in working on relay connections by using these diagrams as your reference and resources. You can also find other engineering-related diagrams in this site by looking through our archive or simply type the key word on the search column!

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Relay Diagrams on Diagram Site. This diagram pictures uploaded by Cassidy Smith on 25 July 2017 at 9:08 am. If you feel this image of Relay Diagrams is useful for you, feel free to share this nice Engineering to your social media account.