1 Channel Optocoupler Relay Module 3V/3.3V High Level Driver Isolated Drive Board For Arduino With Songle Relay 10A 250VAC 10A 30VDC Load Pack Of 5 Perfect For Prototyping Home Automation Robotics And Industrial Education

1-Channel Optocoupler Relay Module for Arduino, 3V/3.3V
✔️ 3V/3.3V logic input, high-level trigger, opto isolation, 5-pack

This one-channel optocoupler relay module isolates control signals from the load, making it ideal for Arduino projects, home automation, robotics, and industrial education.

✅ Load capability: 10A at 250VAC or 10A at 30VDC
✅ Original Songle relay used for reliable switching
✅ Optocoupler isolation with 3V/3.3V drive
✅ Jumper caps for shared or separate power supply
✅ Size: 70mm x 17mm x 20mm (LxWxH); Pack of 5 units
✅ Fixed screw-terminal connections for secure wiring

💡 What is an optocoupler relay module used for in Arduino or electronics projects?

This handy setup protects your microcontroller by isolating control signals from high-power loads. - Provides electrical isolation between control and load sides - Supports switching of up to 10A at 250VAC or 30VDC - Works with 3V/3.3V logic levels and high-level trigger - Jumper options let you share or separate power supply for convenience