What is the function of relays in low voltage systems?

Relays play a crucial role in low voltage systems by allowing a low voltage signal to control a high voltage device. They act as an electrically operated switch that can open or close circuits based on the signals received. This functionality is significant because it enables safe operation of high voltage equipment without requiring the control system to handle high voltage, thereby adding a layer of protection for users and components.

The ability to manage higher power devices safely makes relays indispensable in various applications, such as lighting control, automation systems, and industrial equipment. Their use in controlling high voltage devices while being operated by low voltage signals aligns with the standard practices in low voltage systems, ensuring both efficiency and safety.