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Power Relays, Over 2 Amps

Power relays are electric devices tasked with controlling the flow of electricity from one point to another. They are used to either break an existing electrical circuit or create a new one, depending on the design of the particular power relay. In this article, we will discuss the application field and working principle of power relays with a rating of at least 2 amps.

Applications

Power relays rated at a minimum of 2 amps are used in a variety of industrial and automotive applications. The most common industrial applications involve operating large high-powered motors, transformers, and pumps, such as those found in factories, water treatment plants, and other industrial settings. Automotive applications involve using the power relay to control the power levels of the cooling fan, starter motor, and other electrical components in a car or other vehicle.

Working Principles

The working principle of most power relays rated at 2 amps or higher is fairly straight-forward. The power relay consists of an electromagnet and a set of contacts that can either open or close on command. When the relay is actuated, the electromagnet attracts a set of armature plates which then close the contacts and allow a current to flow through the circuit. Conversely, when the attraction of the electromagnet is interrupted, the armature plates move away from the contacts and break the circuit.

Conclusion

Power relays rated over 2 amps are critical components that are used in a wide variety of industrial and automotive applications. They are designed to control the flow of electricity from one point to another and work by using an electromagnet to attract armature plates and open or close the contacts within the relay.

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