Waveshare Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits

Take command of large-scale automation with this industrial-grade Waveshare 32-Channel Relay Module featuring Modbus RTU protocol over RS485 interface. Designed with multiple isolation protection circuits for rock-solid reliability, this module is ideal for smart building management, industrial control panels, and agricultural automation systems. Available now at The Engineer Store, Bengaluru - trusted by engineers and professionals across India.

Specifications

Key Features

• 32 Independent Relay Channels: Control up to 32 separate loads - lights, motors, solenoid valves, heaters, and more - from a single module.
• Modbus RTU over RS485: Industry-standard communication protocol enables seamless integration with PLCs, HMIs, SCADA systems, and microcontrollers like Arduino, ESP32, and Raspberry Pi.
• Multiple Isolation Protection Circuits: Optocoupler isolation between control and relay sides, TVS surge protection on RS485 lines, and power supply isolation safeguard your equipment against electrical noise and transients.
• Configurable Baud Rate & Address: Easily set communication parameters to match your system requirements; supports up to 247 devices on a single RS485 bus.
• High-Power Relay Outputs: Each channel rated at 10A @ 250V AC / 10A @ 30V DC - capable of switching substantial loads directly without external contactors for many applications.
• Per-Channel Status LEDs: Instantly verify relay states with dedicated indicator LEDs for each of the 32 channels.
• Industrial-Grade Build: Wide operating temperature range (-40 degreesC to +85 degreesC) and robust PCB design ensure dependable operation in harsh environments.
• Daisy-Chain Expandable: Connect multiple modules on the same RS485 bus to scale up to hundreds of relay channels for large installations.
• Screw Terminal Connections: Secure, vibration-resistant wiring for both relay outputs and RS485 communication lines.

Why Choose This?

• 100% authentic Waveshare product sourced directly from authorized distributors
• Industrial-grade isolation protection ensures long-term reliability in demanding environments
• Modbus RTU compatibility makes it plug-and-play with existing industrial automation ecosystems
• 32 channels in a single module reduces wiring complexity and panel space compared to multiple smaller modules
• 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
• Expert technical support included - our engineers help you with wiring, Modbus configuration, and integration
• Comprehensive Waveshare documentation, sample code, and community resources available

Project Ideas

• Smart Building Automation: Control 32 zones of lighting, HVAC dampers, or access systems from a central BMS controller via Modbus RTU - perfect for offices, hotels, and commercial complexes.
• Industrial Control Panels: Integrate with PLCs and SCADA systems to manage conveyor motors, pneumatic valves, indicator lamps, and alarm systems on the factory floor.
• Agricultural Automation: Automate irrigation valves, greenhouse ventilation fans, nutrient dos

Frequently Asked Questions

Buy Waveshare Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits Online in India

Purchase the Waveshare Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits online at The Engineer Store - 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 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits 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.

Looking to buy Waveshare Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.