The Optocoupler Protected Relay Module is an essential component used in modern electronic and electrical systems, offering key benefits like electrical isolation, protection from surges, and control over high-power devices. This module combines the functionalities of a relay and an optocoupler, making it an ideal solution for controlling high-voltage equipment while ensuring the safety and integrity of low-voltage circuits. In this article, we will explore how the Optocoupler Protected Relay Module works, its key features, and the variety of applications in which it is used.