Industry News
understanding the 12 volt relay: how it works and its applications
Release time:2025-05-22 08:32:55

    A 12-volt relay is a fundamental component in electrical systems that are used in many everyday applications, ranging from automotive to home appliances. This article aims to provide a clear understanding of what a 12-volt relay is, how it works, and where it is commonly used.

12 volt relay

    What is a 12 Volt Relay?
    A 12-volt relay is an electrically operated switch that uses an electromagnet to control the opening and closing of a set of contacts. The primary function of a relay is to allow a low power signal to control a higher power circuit, acting as an intermediary switch. When a 12-volt signal is applied to the relay’s coil, it generates a magnetic field that pulls a movable armature. This armature either opens or closes the contacts in the relay, which in turn controls the flow of current in a separate circuit.
    The "12-volt" in the name refers to the voltage required to activate the relay. This is a standard voltage for many automotive and low-voltage applications, making the 12-volt relay highly versatile and widely used.