relay 12v： understanding the basics and applications of 12v relays
Release time:2025-09-19 11:09:44
Relays are essential components in many electrical systems, and their role in controlling circuits cannot be overstated. Among the different types of relays, the 12V relay stands out for its widespread use in both consumer electronics and industrial applications. This article will explore what a 12V relay is, how it works, and where it can be applied.
What is a 12V Relay?
A 12V relay is an electrical switch that is operated by a 12-volt electrical signal, typically from a direct current (DC) power source. It is an electromechanical device that allows a small electrical current (low voltage) to control a much larger current (higher voltage) in a different circuit. The relay consists of a coil, a set of contacts, and an armature. When a voltage is applied to the coil, it generates a magnetic field that moves the armature, closing or opening the contacts to control the power to the connected circuit.
Key Components of a 12V Relay
Coil (Electromagnet)： The coil is a wire wound in a specific way that generates a magnetic field when a 12V DC current passes through it. This magnetic field is used to move the armature.
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