Two Pack 12V 30A Single Channel Relay Module With Optocoupler Isolation High And Low Trigger Hella Reliable Switching Tight Terminal Connections Plug And Play Vibe For Electronics Builds And DIY Upgrades
✔️ Three voltages supported plus dual module packing included
You get a two piece set of single channel relay modules designed for custom electronics builds and home automation projects. These boards isolate your control signals from heavy loads using an onboard optocoupler. You can switch motors, lamps, or solenoids without risking your microcontroller.
✅ Optocoupler isolation prevents signal noise and protects your logic board
✅ Screw terminal block handles secure wiring for ac or dc circuits
✅ Adjustable jumper sets high or low trigger mode for easy integration
✅ Supports 30 amps continuous load across 5 volt and 24 volt options
💡 What makes optical isolation essential for safe switching tasks?
This optical barrier stops voltage spikes from reaching your fragile logic board during operation.
- It provides reliable separation while allowing clean signal transfer across different ground potentials.
- You get handy flexibility when matching various control outputs to heavy duty power switches.