Four Channel 12V Relay Module With Opto Isolation And High And Low Level Trigger Independent Relays For Arduino Raspberry Pi And DIY Automation Projects Shield Style Board With Easy Jumper Config
✔️ 4 independent channels, opto-isolated inputs, high/low trigger
This shield-style relay module lets you control high-power loads from microcontrollers such as Arduino or Raspberry Pi. Each relay switches independently thanks to opto-isolated inputs, delivering reliable, noise-free operation in DIY automation projects.
✅ 4-channel 12V module with opto-isolated inputs for each relay.
✅ High-current relays: AC 250V 10A, AC 125V 15A, DC 30V 10A.
✅ Fault-tolerant design; stays put if control line fails or disconnects.
✅ Screwed terminal plate and 3.1 mm bolt holes; mounting footprint 67 x 44.5 mm (2.64 x 1.75 in).
💡 What is a 4-channel 12V opto-isolated relay board used for? This handy interface lets you control power devices from low-voltage controllers. - ideal for Arduino and Raspberry Pi projects - provides electrical isolation between control and load circuits - suitable for switching AC loads up to 250V and DC loads up to 30V