8 Channel 5V Relay Board

8 Channel 5V Relay Module

The 8 Channel 5V Relay Module is a versatile switching board designed to control high-voltage and high-current devices using low-voltage microcontroller signals. Equipped with eight independent relays, this module enables safe and reliable control of appliances, motors, lighting systems, pumps, and other electrical equipment.

Designed for compatibility with Arduino, AVR, PIC, ARM, ESP32, Raspberry Pi, PLCs, and other control systems, the module features opto-isolation for improved protection and stability. Each relay can switch loads up to 10A, making it suitable for automation, industrial control, and smart home projects.

Key Features

• 8 independent relay channels for controlling multiple devices.
• Operates on a 5V DC control voltage.
• Opto-isolated design for enhanced safety and noise immunity.
• Compatible with Arduino, ESP32, Raspberry Pi, PLCs, and other microcontrollers.
• LED indicators for relay status monitoring.
• High-current relay contacts rated up to 10A.
• Easy-to-use screw terminal connections.

Technical Specifications

• Operating Voltage: 5V DC
• Number of Channels: 8
• Relay Type: SPDT (Single Pole Double Throw)
• Maximum AC Load: 250V AC, 10A
• Maximum DC Load: 30V DC, 10A
• Trigger Signal: TTL Logic Compatible
• Isolation: Opto-Isolated Control Circuit
• Status Indicators: LED for each relay channel

Working Principle

The module receives low-voltage control signals from a microcontroller or PLC. When a channel is activated, the corresponding relay energizes and changes the state of its contacts, allowing it to switch high-voltage or high-current loads independently from the control circuit. This electrical isolation helps protect sensitive electronics from power surges and interference.

Applications

• Arduino and Microcontroller Projects
• Industrial Automation Systems
• PLC-Based Control Panels
• Smart Home Automation
• Lighting Control Systems
• Motor and Pump Control
• Security and Access Control Systems
• Home Appliance Switching
• IoT Automation Projects

Advantages

• Controls multiple devices simultaneously.
• Safe isolation between control and load circuits.
• Supports both AC and DC load switching.
• Reliable operation for automation projects.
• Simple integration with popular development boards.

Package Includes

• 1 × 8 Channel 5V Relay Module