4 Channel 12V Relay Module with Optocoupler – 10A Relay Board for Arduino, Raspberry Pi, PLC Automation

4 Channel 12V Relay Module with Optocoupler – 10A Relay Board for Arduino, Raspberry Pi, PLC Automation

The 4 Channel 12V Relay Module with Optocoupler is a high-performance relay interface board designed to control high-voltage and high-current devices using Arduino, Raspberry Pi, ESP32, PLC, PIC, AVR, and other microcontrollers. The module includes 4 independent relays, each capable of switching up to 250V AC / 10A or 30V DC / 10A, making it suitable for automation, robotics, and industrial control projects.

This relay board features optocoupler isolation, which protects the control circuit from voltage spikes and electrical noise, ensuring safe and stable operation. The module has LED indicators for each relay, screw terminals for easy wiring, and a strong FR4 PCB with isolation groove for reliable performance.

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Key Features

• 4 Channel relay output
• Operating voltage: 12V DC
• Optocoupler isolation for protection
• Supports AC 250V / 10A and DC 30V / 10A load
• LED indicator for each relay
• Screw terminals for easy wiring
• Compatible with Arduino, Raspberry Pi, ESP32, PLC, PIC, AVR
• Stable and reliable switching
• High quality FR4 PCB design
• Mounting holes for easy installation

Applications

• Home automation systems
• Arduino and Raspberry Pi projects
• Industrial automation
• Motor and pump control
• Light and fan control
• IoT projects
• Robotics projects
• PLC control panels
• Smart home devices
• DIY electronics projects