Relay Board

A relay board is a crucial component in electronic and automation systems, designed to allow low-power signals from microcontrollers, PLCs, or other control devices to manage high-power electrical circuits. Each relay on the board acts as an electrically operated switch, which can be triggered by a small input voltage to open or close its contacts, thereby controlling the connected high-voltage circuit. This makes relay boards indispensable for controlling devices like motors, lights, and pumps in various applications, including industrial automation, home automation, and robotics. The relays on the board provide electrical isolation between the control and the high-power circuits, ensuring safety and protecting sensitive components from damage. Relay boards are available in different configurations, such as single-channel or multi-channel, allowing for the control of multiple devices simultaneously. Their versatility, reliability, and ease of use make them a fundamental tool for managing complex electrical systems efficiently.