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Release time:2025-09-21 00:19:34
标题 Relay 12V: Understanding the Functionality and Applications of 12V Relays
Relays are essential components in electrical engineering and automation, acting as electromechanical switches that control a circuit by a low-power signal or multiple circuits by one signal. Among various types of relays, the 12V relay is particularly popular due to its widespread applications in automotive and industrial environments. This article will explore the functionality, structure, types, and applications of 12V relays, providing a comprehensive understanding of these critical devices.
1. What is a Relay?
A relay is essentially an electrically operated switch that allows a low-power signal to control a high-power circuit. When voltage is applied to the relay’s coil, it generates a magnetic field that activates a switch, leading to the opening or closing of the circuit. This feature makes relays invaluable in various applications, allowing a small amount of current to manage devices requiring a significantly higher current.
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