8 Channel 5V Relay Module with Optocoupler Isolation (8-Channel Opto-Isolated Relay Board)

The 8 Channel 5V Relay Module with Optocoupler Isolation is a reliable switching interface board designed to control eight independent AC or DC loads using low-voltage logic signals. Each relay channel is equipped with an optocoupler to provide electrical isolation between the control circuit and the relay circuit, protecting microcontrollers from voltage spikes and electrical noise. Operating on a 5V DC supply, the module is compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi (with appropriate interfacing), PLCs, and other embedded control systems. It is ideal for home automation, industrial control, robotics, IoT projects, and smart switching applications.

Key Features -

• Eight independent relay channels

• 5V DC operating voltage

• Optocoupler isolation for enhanced protection

• LED indicators for relay status

• High-current mechanical relays

• Screw terminal connections for secure wiring

• Compatible with microcontrollers and PLCs

• Stable and reliable switching performance

• Compact PCB design

• Ideal for automation and control applications

Specifications -

• Product type - Relay Module

• Number of channels - 8

• Operating voltage - 5V DC

• Relay type - Mechanical Relay

• Isolation - Optocoupler Isolation

• Maximum switching voltage - 250V AC / 30V DC

• Maximum switching current - 10A per Channel

• Input type - Digital Logic Control

• Output contacts - NO, NC and COM

• Mounting type - PCB Module

Applications -

• Home automation

• Industrial automation

• Smart control systems

• Robotics

• IoT projects

• Lighting control

• Motor and pump control

• Appliance switching