12 Pack 12V Relay Module 1 Channel Board With Optocoupler For High And Low Level Trigger Supports 250V 10A AC And 30V DC With Screw Terminals And Indicator Great For DIY Projects

12-pack 12V Optocoupled Relay Module, 1 Channel for DIY Projects
✔️ 1-channel 12V relay with optocoupler, NC/COM/NO, screw terminals

This 12-pack 1-channel relay module uses optocoupler isolation to safely switch higher loads from a microcontroller, making it ideal for DIY automation, hobby electronics, and small automation tasks.

✅ Maximum load: AC 250V/10A; DC 30V/10A with indicator; trigger current 5mA
✅ Optocoupler isolation provides strong driving ability and protects I/O ports from relay switching
✅ Jumper selects high or low trigger; input and relay terminals (NC, C, NO) with screw terminals
✅ Easy installation with terminal block and side mounting holes (diameter 3.1 mm)
✅ Wide compatibility with microcontrollers; can drive LEDs, motors, drivers, and other loads

💡 What is a handy use case for a 12V relay module with optocoupler in hobby electronics? This handy module lets you switch mains or low-voltage loads from a safe, low-current control signal. - handy for controlling lights, motors, or drivers from Arduino or other microcontrollers - provides galvanic isolation to protect your controller and prevent ground issues - supports loads up to 250V AC / 10A or 30V DC for flexible use - plugs into standard microcontroller interfaces via screw-terminal input