An Electromechanical Relay (EMR) is a crucial component in electrical engineering, widely used for controlling electrical circuits. These relays have been around for over a century, and despite advancements in technology, they remain indispensable in various industries, from automotive to industrial automation. This article will explore what an electromechanical relay is, how it works, its components, types, and its applications in modern-day systems.
What is an Electromechanical Relay? An Electromechanical Relay (EMR) is a device that uses an electromagnetic field to open or close electrical contacts in a circuit. It acts as a switch, allowing a low-voltage circuit to control a high-voltage circuit without a direct electrical connection between the two. The relay’s fundamental operation is based on an electromagnet, which, when energized, generates a magnetic field that moves a mechanical switch. This action can either complete or interrupt an electrical circuit, enabling the relay to control various functions in an electrical system.
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