5V 2-Channel Relay Module with Optocoupler Isolation

The 5V 2-Channel Relay Module with Optocoupler Isolation is an essential component for any electronics maker or engineer looking to control high-power devices safely. Operating on a standard 5V logic signal, this board utilizes onboard optocouplers to provide true galvanic isolation between your microcontroller and the high-voltage load. This ensures your sensitive control circuitry is fully protected from voltage spikes and electrical noise, making it highly reliable for home automation, robotics, and industrial DIY applications.

Equipped with a selectable high or low-level trigger via an onboard jumper, this versatile module seamlessly interfaces with standard 3.3V and 5V microcontrollers like Arduino, Raspberry Pi, and ESP32. It is perfect for switching heavy AC loads such as lights, motors, and heaters, as well as high-current DC devices. The robust screw terminals provide secure, professional-grade connections for both the control logic and the relay outputs.

Features:

• Optocoupler Isolation: Provides complete electrical isolation between the logic circuit and high-power load, preventing damage from voltage spikes.
• Selectable Trigger: Features an onboard jumper to switch between High and Low-level triggering to suit different microcontroller logic.
• High Switching Capacity: Capable of switching up to 10A at 250V AC or 10A at 30V DC per channel.
• Status Indicators: Built-in LEDs provide clear visual feedback for power status and individual relay activation.
• Safe & Reliable: Designed with isolation routing on the PCB to ensure maximum safety during high-voltage operation.
• Easy Interfacing: Uses standard header pins for input signals and robust screw terminals for output loads.

Package Includes:

1 x 5V 2-Channel Relay Module with Optocoupler