Waveshare Modbus RTU 8-channel Relay Module RS485
Waveshare Modbus RTU 8-channel Relay Module RS485
Waveshare Modbus RTU 8-Channel Relay Module RS485
Premium industrial-grade relay control module from Waveshare. Perfect for automation, IoT, and industrial applications requiring reliable remote switching capabilities.
Product Overview
The Waveshare Modbus RTU 8-channel Relay Module is a professional-grade switching device designed for industrial automation and control systems. With RS485 communication and Modbus RTU protocol support, this module enables seamless integration into complex automation networks.
Key Features
- 8 Independent Relay Channels - Control up to 8 devices simultaneously
- Modbus RTU Protocol - Industry-standard communication for easy integration
- RS485 Interface - Long-distance, noise-resistant communication
- Wide Voltage Support - Compatible with various power supply requirements
- Isolated Relay Outputs - Protects control circuits from high-voltage loads
- LED Status Indicators - Real-time feedback for each relay channel
- DIN Rail Mountable - Professional installation in control cabinets
Technical Specifications
| Specification | Details |
| Communication Protocol | Modbus RTU |
| Interface | RS485 |
| Number of Channels | 8 |
| Relay Type | Electromagnetic |
| Contact Rating | 10A @ 250VAC / 30VDC |
| Control Voltage | 12-24VDC |
| Baud Rate | 9600-115200 bps |
| Response Time | <100ms |
| Operating Temperature | -20 degreesC to +60 degreesC |
| Dimensions | Compact industrial form factor |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | 24/7 Email & WhatsApp |
Why Choose This Product?
100% Authentic - Sourced directly from authorized Waveshare distributors
Industrial Grade - Proven reliability in demanding applications
Fast Shipping - 1-5 days from Bengaluru warehouse, delivered in 7-8 days
Complete Support - Technical assistance throughout product lifecycle
Cost-Effective - Professional functionality at competitive pricing
Easy Integration - Standard Modbus RTU protocol, widely supported
Applications
Industrial Automation
- Manufacturing equipment control
- HVAC system management
- Lighting automation
- Motor control and switching
IoT & Smart Systems
- Remote device activation
- Building automation
- Smart home integration
- Environmental monitoring systems
Energy Management
- Load switching and distribution
- Power supply management
- Equipment sequencing
- Energy monitoring systems
Laboratory & Education
- Experimental automation
- Control system learning
- Prototyping and development
- Research applications
What's Included
- 1x Waveshare Modbus RTU 8-Channel Relay Module
- RS485 connection documentation
- Modbus RTU protocol guide
- Wiring diagram and pinout information
- Quick start guide
- Technical support contact details
Connectivity & Integration
RS485 Communication:
- 2-wire or 4-wire connection options
- Daisy-chain multiple modules
- Maximum cable length: 1200m
- Supports up to 32 devices on single bus
Protocol Support:
- Full Modbus RTU implementation
- Standard holding registers for relay control
- Input registers for status monitoring
- Easy integration with PLC, microcontroller, and industrial systems
Installation & Setup
- Power Connection - Connect 12-24VDC power supply
- RS485 Wiring - Connect to master controller (PLC/microcontroller)
- Relay Outputs - Connect load circuits to relay terminals
- Configuration - Set device address via DIP switches
- Testing - Verify relay operation with Modbus commands
Performance Benefits
- Reliable Switching - Electromagnetic relays with proven durability
- Noise Immunity - RS485 differential signaling reduces interference
- Scalability - Daisy-chain multiple modules for expanded control
- Real-time Feedback - LED indicators for instant status verification
- Safe Operation - Isolated outputs protect control circuits
Quality Assurance
Authentic Waveshare product with full verification
Comprehensive testing before dispatch
7-day warranty on manufacturing defects included
Quality packaging for safe delivery
Expert technical support team available
Frequently Asked Questions
Is this an authentic Waveshare product?
Yes, 100% authentic. Sourced from authorized Waveshare distributors with full authentication verification and warranty support.
What warranty is included?
Full 7-day warranty on manufacturing defects covering all defects in materials and workmanship. Extended warranty options available.
How quickly will I receive this?
Standard shipping: 7-8 days to most of India from our Bengaluru warehouse. Express options available on request.
Can I control multiple modules on one RS485 bus?
Yes, up to 32 modules can be connected on a single RS485 bus with unique Modbus addresses. Address configuration is via DIP switches.
What's the maximum cable length for RS485?
Standard RS485 supports up to 1200 meters with proper termination resistors. Actual distance depends on baud rate and cable quality.
Is technical support available?
Yes, full 24/7 technical support via email and WhatsApp. Our team provides integration assistance, troubleshooting, and documentation support.
What's your return policy?
7-day returns on manufacturing defects only with full refund or replacement.
Buy Waveshare Modbus RTU 8-channel Relay Module RS485 Online in India
Purchase the Waveshare Modbus RTU 8-channel Relay Module RS485 online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Waveshare Modbus RTU 8-channel Relay Module RS485 with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
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