A 12V relay is an essential electronic component that is widely used in a variety of applications ranging from automotive systems to industrial control circuits. By functioning as an electrically operated switch, it provides a convenient and safe method for controlling high-power devices using low-voltage signals. In this article, we will delve into the working principles, common uses, and practical applications of the 12V relay.
What is a 12V Relay? A relay is an electromechanical device used to control a circuit by opening or closing the contacts inside it when an electrical signal is applied. The 12V relay operates with a 12-volt DC supply, which is commonly used in both automotive and household systems. It consists of two main parts: the coil and the switch (contacts). The coil is made of wire wound around a magnetic core, and when a voltage of 12V is applied to the coil, it generates a magnetic field. This magnetic field either pulls in or pushes out the relay’s contacts, closing or opening the circuit. The contacts inside the relay include:
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