A 12-volt relay is an essential component in many modern electrical and electronic systems. It is widely used in automotive, industrial, and home automation applications due to its ability to control high-voltage or high-current circuits with a low-voltage signal. In this article, we will explore how a 12-volt relay works, its various applications, and the benefits it offers in different fields.
What is a 12 Volt Relay? At its core, a relay is an electromagnetic switch that allows a low-voltage electrical signal to control the flow of a higher-voltage or higher-current circuit. The 12-volt relay is designed to operate with a 12V direct current (DC) power source, which is commonly found in automotive systems and various other electronic applications. The relay consists of a coil of wire, often referred to as the “electromagnet,” that generates a magnetic field when an electric current passes through it. This magnetic field then pulls a metal armature, which is connected to a set of contacts. When the armature is pulled, it either opens or closes the contacts, thus switching the high-power circuit on or off.
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