2 Channel Relay Module With Coupling Protection - 5V DC 2 Way

2 Channel Relay Module with Optocoupler Protection – 5V DC The 2 Channel 5V Relay Module with Optocoupler Protection is a compact and reliable relay interface designed to control two separate AC or DC loads using low-voltage signals from microcontrollers such as Arduino, ESP32, Raspberry Pi and other development boards. Each channel operates independently and provides optocoupler isolation, helping protect the control circuit from electrical noise and relay-related voltage spikes. The module includes LED indicators to show the ON/OFF status of each relay. Key Features 2 independent relay channels Operating voltage: 5V DC Optocoupler isolation for improved protection Active-LOW trigger on common versions Supports 3.3V and 5V control signals depending on module version Relay status LED indicators Screw terminals for easy load connection Built-in back-EMF protection Suitable for Arduino, ESP32, Raspberry Pi and other microcontrollers Each relay can switch up to 10A @ 250V AC or 10A @ 30V DC on commonly supplied versions. Specifications can vary slightly between manufacturers and board versions, so the 10A rating should be treated as the relay's maximum contact rating, not a recommendation for continuous mains loading. Applications Home automation Arduino & ESP32 projects IoT switching systems Light and fan control Motor and pump control Solenoid and valve control Robotics projects Industrial automation School and university electronics projects Package Includes 1 × 2 Channel 5V Relay Module with Optocoupler Protection