5V 1-Channel Modbus RTU Relay Module RS485 Optocoupler Isolation

The 5V 1-Channel Modbus RTU Relay Module RS485 Optocoupler Isolation is a compact and reliable industrial control module designed for remote switching applications using the Modbus RTU protocol over RS485 communication. It features optocoupler isolation, ensuring safe operation by protecting control circuits from electrical noise and voltage spikes.

Operating at 5V DC, this module is ideal for direct interfacing with Arduino, ESP32, Raspberry Pi, PLCs, and other microcontrollers. It enables users to control electrical loads remotely over long distances with stable and noise-resistant communication.

The industrial relay module RS485 is widely used in industrial automation, smart home systems, IoT applications, remote device control, and monitoring systems. With its robust design and easy integration, it is a perfect solution for engineers, developers, and hobbyists.

Features:

• 1-channel relay module with Modbus RTU protocol
• RS485 communication interface for long-distance control
• Built-in optocoupler isolation for safety and noise protection
• 5V operating voltage (MCU compatible)
• Supports Arduino, ESP32, Raspberry Pi, and PLC systems
• Reliable switching for AC/DC loads
• High noise immunity in industrial environments
• Compact and easy to install
• Ideal for automation, IoT, and remote switching projects

Specifications:

• Communication Protocol: Modbus RTU
• Interface: RS485
• Channels: 1
• Operating Voltage: 5V DC
• Isolation: Optocoupler Isolation
• Relay Type: Electromechanical Relay
• Control Method: Serial Communication (RS485)
• Load Capacity: Typically up to 10A (depends on relay)
• Application: Industrial Automation / Remote Control

Package Includes:

• • 1 × 5V 1-Channel Modbus RTU RS485 Relay Module