1-Channel 5 V Relay Module (10 A)

A relay is an electrically operated switch: a small signal from your microcontroller closes contacts rated for 10 A at 250 V AC or 30 V DC. This module includes the driver transistor, flyback diode and indicator LEDs, and exposes NO, NC and COM screw terminals so you can switch a load on or off.

Key features

• Switches up to 10 A at 250 V AC / 30 V DC
• NO, NC and COM screw terminals
• Driver transistor, protection diode and LEDs on board
• Controlled directly from Arduino or ESP32 pins

Specifications

What's in the box

• 1 × 1-channel relay module

Ideal for

• Smart lights and sockets
• Pump and irrigation control
• Garage and gate openers

Good to know

• Mains voltage is dangerous: enclose all 230 V wiring and never touch the terminals while powered.