A relay is an electrically operated switch that allows control of a high-current circuit with a low-current signal. The 24VDC relay operates on 24 volts of direct current (DC) and is commonly used in systems that need to control or automate various electrical devices, such as motors, lights, alarms, and solenoids. The relay contains an electromagnet that, when energized, causes a set of contacts to open or close, effectively switching the circuit on or off.

    In many industrial and automation systems, the use of 24VDC relays is essential because they provide a safe and efficient means of controlling power-heavy devices without exposing low-power control circuits to the same risks. A 24VDC power supply is often preferred for such systems because it offers a balance between safety and operational efficiency.