5V Two Channel Relay Module with Optocoupler

Upgrade your automation projects with this 5V 2-Channel Relay Module designed for optimum isolation and protection using onboard opto-couplers. Whether you’re working on an IoT setup, Arduino project, or home automation system, this module offers safe, reliable switching of high-voltage loads directly from a microcontroller like Arduino, ESP32, STM32, or Raspberry Pi.

This module supports both AC and DC loads and provides active-low triggering, making it perfect for industrial and DIY automation applications.

Features

• Dual-channel relay switching – Control 2 AC/DC appliances or devices
• 5V logic compatible – Perfect for most development boards like Arduino, ESP8266, ESP32
• Optocoupler isolation – Ensures complete electrical isolation between the control and load side
• High-current relay – Up to 10A @ 250V AC / 30V DC
• LED indicators – Status LEDs for power and relay switching
• Screw terminal outputs – Easy and secure connection to external devices
• Active-low trigger – Relay turns ON when control pin is LOW
• Mounting holes – Easily mount on project enclosures or panels

Specifications

•  Operating Voltage – 5V DC
• Channels – 2
• Trigger Voltage – Low-level Trigger (Active LOW)
• Relay Type – SRD-05VDC-SL-C
• Max Switching Voltage (AC) – 250V @ 10A
• Max Switching Voltage (DC) – 30V @ 10A
• Optocoupler – PC817 or equivalent
• Control Interface – IN1, IN2, GND, VCC
• Load Output Type – NO (Normally Open), NC (Normally Closed), COM
• Dimensions – Approx. 50mm x 40mm x 18mm
• Indicator LEDs – Power LED + 2 Relay Status LEDs

Applications

• Home automation projects
• Smart home relay control
• Security systems
• Industrial automation
• IoT and remote switching applications
• AC/DC appliance control using Arduino, ESP32, Raspberry Pi, etc.
• College and school-level electronics projects

 Package Includes

• 1 x 5V 2-Channel Relay Module with Optocoupler
• Packed in antistatic & protective packaging