8 Road/Channel Relay Module (with light coupling) 12V

The 8 Road/Channel Relay Module carries eight 12 V relays on one board, each with an optocoupler ('light coupling') on its control input. It lets an Arduino, ESP32 or PLC switch up to eight separate loads, such as lamps, pumps, fans or solenoids, while keeping the microcontroller isolated from the relay side.

8 Road/Channel Relay Module Specifications

• Channels: 8 relays
• Relay coil voltage: 12 V DC
• Input isolation: optocoupler on each control input
• Control inputs: one input pin per channel (IN1 to IN8)
• Load terminals: COM, NO (normally open) and NC (normally closed) screw terminals per channel
• Indicators: status LED for each channel
• Contact rating: printed on each relay; stay within it

8 Road/Channel Relay Module Applications

• Home and garden automation, lights and irrigation pumps
• Controlling motors, fans and solenoid valves
• Multi-channel switching from Arduino, ESP32 or Raspberry Pi
• Control panels and test rigs

What's in the Box

• 1 × 8-channel 12 V relay module

Tip: Use a 12 V supply that can power all eight coils at once, and check whether your board switches on a LOW or HIGH input before writing code. Turn off mains power before wiring loads and keep mains wiring away from the low-voltage side.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.