4 Channel 5V Relay Module with Optocoupler

The 4 Channel 5V Relay Module with Optocoupler is perfect for switching AC or DC loads using microcontrollers like Arduino, ESP8266, ESP32, STM32, and Raspberry Pi. Each channel is optically isolated, ensuring safe and reliable operation. Great for home automation, industrial control, and DIY electronics projects.

Its compact design makes it easy to integrate into your project. With clear pin labeling and onboard indicator LEDs, it's beginner-friendly and reliable for professionals.

📟 Specifications:

• Channels: 4

• Control Voltage: 5V DC

• Relay Type: Electromechanical

• Output: AC 250V/10A or DC 30V/10A (max)

• Isolation: Optocoupler for each channel

• Indicator: LED for relay status

• Trigger: Active LOW

• Dimensions: ~7.1cm x 5.0cm x 1.8cm

• Compatibility: Arduino, ESP32, NodeMCU, Raspberry Pi, STM32, etc.

🎯 Applications:

• Home & industrial automation

• Smart switching of fans, lights, pumps

• IoT and ESP32 projects

• DIY smart home systems

• Electrical load management

✅ Why Buy from Engineering Electronics?
✅ Optocoupler isolation for safety
✅ Compatible with all major dev boards
✅ Reliable switching for AC/DC loads
✅ Best price in Bangladesh
✅ Fast shipping across BD

📦 Package Includes:
1 × 4-Channel 5V Relay Module (Optocoupler version)