Two Pack 5V Relay Module 30A One Channel With Optocoupler Isolation And High And Low Trigger Built For 5V 12V 24V Power Easy Terminal Connectors Your Go-To Microcontroller Projects And DIY Electronics Setup

Two-Pack 5V Relay Module with Optocoupler Isolation
✔️ One-channel relay, 30A max, opto isolation, 5V/12V/24V options

This two-pack, one-channel relay module is designed to safely switch higher-power devices from microcontrollers. It features optocoupler isolation, easy screw-terminal connections, and supports 5V, 12V, or 24V operation, making it ideal for Arduino, Raspberry Pi projects, and DIY automation tasks.

✅ 30A rating for AC 250V and DC 30V loads
✅ Optocoupler isolation provides strong drive and noise immunity
✅ Voltage options: 5V, 12V, or 24V input; trigger with jumper
✅ High/Low trigger selectable via jumper; IN signal compatible
✅ Terminal-friendly: all interfaces accessible via screw terminals
✅ Pack includes 2 identical modules (not mixed) for easy replacement

💡 What is a relay module with optocoupler isolation used for in microcontroller projects?

A handy way to safely switch bigger loads from a small controller, keeping control signals clean. - isolates control signals from high-power circuits to protect your microcontroller - supports 5V/12V/24V logic and handles up to 30A loads - ideal for DIY automation, Arduino projects, and home automation setups