12V DC Relay Module With Optocoupler Isolation, One Channel, High Low Level Trigger, Handles 10A 250VAC or 10A 30VDC Loads, Arduino PLC Automotive Ready, Dual Protection, Easy Hookup for Pro DIY Automation Projects

Opto-Isolated 12V Relay Module for 1-Channel control
✔️ 12V DC, 1-channel, opto-isolated, SPDT with high/low trigger

This compact relay module uses optocoupler isolation to shield microcontrollers from voltage spikes while offering SPDT switching for flexible wiring. It's ideal for DIY automation, Arduino projects, PLC interfaces, and automotive mods, allowing safe control of 10A loads.

✅ Working voltage: DC 12V
✅ Trigger current: 2-5 mA
✅ Trigger voltage: LOW 0-4V, HIGH 4.5-12V
✅ Insulation resistance: 100MΩ (500VDC)
✅ Load ratings: 10A 250VAC / 15A 125VAC / 10A 30VDC
✅ Optocoupler isolation + SPDT (COM/NO/NC)
✅ High/Low trigger select via jumper (no extra driver)
✅ 10-pack setup with screw terminals

💡 What is a 12V optocoupled relay module used for in DIY automation projects? This handy device lets you safely drive high-current loads from low-voltage controllers. - 12V opto-isolated relay module suitable for Arduino, PLCs, and automotive ECUs - Works with 3.3-12V logic without extra drivers - SPDT outputs enable NO/NC wiring for flexible control