A 24V DC industrial relay is an electromechanical switch that uses an electric current (typically 24V DC) to control the opening and closing of contacts in a circuit. When the relay is energized, the electromagnetic coil generates a magnetic field, which attracts a set of contacts, either completing or interrupting a circuit. This allows the relay to control high-power circuits with a low-voltage signal, offering protection and control for various equipment.

    The 24V DC control voltage makes it suitable for low-voltage applications, which is often safer and more reliable compared to higher-voltage systems, such as 110V or 220V AC relays. The 24V DC relay can switch a wide range of power levels, from a few milliamps to several amps, depending on the relay's specifications.