understanding the function and applications of a 12 volt relay
Release time:2025-08-29 12:38:35
Relays are essential components in various electrical and electronic systems, used to control larger electrical loads through smaller control signals. Among the many types of relays, the 12 Volt relay is one of the most widely used. This article aims to provide a comprehensive understanding of the 12 Volt relay, its working principle, key features, and common applications in different industries.
What is a 12 Volt Relay?
A 12 Volt relay is an electromechanical switch that operates on a 12V DC power supply. It uses an electromagnet to control the switching of electrical circuits. The relay consists of two primary components： the coil and the contacts. The coil, when energized with 12V DC, creates a magnetic field that pulls a metal armature, which in turn causes the contacts to close or open, depending on the type of relay.
Relays are designed to isolate the control circuit from the circuit being controlled. This allows the control circuit to work with low power and voltage, while still controlling high-power loads. The 12V relay is particularly common because many systems, such as automotive and residential, operate on 12V DC power sources.
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