A Low Voltage DC Relay is an essential component in many electrical and electronic systems, serving as a crucial switch for controlling low voltage direct current (DC) circuits. These relays are used to switch or control circuits in response to signals from controllers, allowing automated operations and protection mechanisms in various devices and systems. This article explores the basics of Low Voltage DC Relays, their applications, advantages, and key considerations when selecting and using them.
What is a Low Voltage DC Relay? A Low Voltage DC Relay is an electrical device that controls the flow of direct current (DC) in a circuit using an electromagnet to operate a set of mechanical contacts. The relay is typically activated by a low voltage signal, which energizes the coil inside the relay, creating a magnetic field that moves a mechanical armature to open or close the relay’s contacts. The low voltage control side interacts with the high voltage or high current load side, enabling users to control large and potentially dangerous currents safely. Key Components and Working Principle