--- product_id: 604392647 title: "Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply" brand: "waveshare" price: "VT27201" currency: VUV in_stock: true url: https://www.desertcart.vu/products/604392647-waveshare-industrial-modbus-rtu-8-ch-relay-module-d-digital store_origin: VU region: Vanuatu --- # 10A high-capacity relay contact RS485 multi-device cascade Multi-layer isolation & surge protection Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply **Brand:** waveshare **Price:** VT27201 **Availability:** ✅ In Stock ## Summary > ⚙️ Power your automation with precision and protection — don’t get left behind! ## Quick Answers - **What is this?** Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply by waveshare - **How much does it cost?** VT27201 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/604392647-waveshare-industrial-modbus-rtu-8-ch-relay-module-d-digital) ## Best For - waveshare enthusiasts ## Why This Product - Trusted waveshare brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Industrial Design:** Rail-mounted ABS enclosure with multiple LED indicators for easy installation, status monitoring, and professional-grade durability. - • **Robust & Reliable Relay Control:** High-quality relay supports up to 10A at 250VAC/30VDC with built-in flyback diode for stable, long-lasting performance. - • **Seamless Multi-Device Networking:** Configurable device address (1~255) enables cascading multiple modules on a single RS485 bus for scalable industrial automation. - • **Smart Digital Input with Debounce:** Supports both passive and active digital inputs with bi-directional optocoupler isolation and built-in debouncing for glitch-free control. - • **Advanced Isolation for Maximum Safety:** Multi-layer isolation circuits including power, magnetic, optocoupler, and surge protection ensure ultra-reliable operation in harsh environments. ## Overview The Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) is a rugged, DIN rail-mountable automation component featuring configurable RS485 multi-device cascading, high-capacity 10A relay contacts, and comprehensive multi-layer isolation circuits. Designed for industrial environments, it offers surge protection, digital input debouncing, and a compact, easy-to-install ABS enclosure, making it an essential tool for scalable, reliable control systems. ## Description Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply ## Features - Configurable device address (1~255), multi devices can be cascaded on RS485 bus. Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically - Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal. Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption - Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic. Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit - Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability. Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. The relay supports digital input linkage control or toggle control - Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection. High quality relay, contact rating: ≤10A 250VAC/30VDC. Rail-mounted ABS plastic enclosure, easy to install, safe to use. Multiple LEDs for indicating the MCU status and signal transceiving status ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Waveshare | | Part number | Modbus RTU Relay (D) | | Item Weight | 370 g | | Product Dimensions | 17.5 x 9 x 4 cm; 370 g | | Item model number | Modbus RTU Relay (D) | | Wattage | 100 Milliwatts | | Item Package Quantity | 1 | | Plug profile | DIN Rail Mount | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Connector type:** Wired connection - **Contact material:** Silver Alloy - **Contact type:** Normally Open - **Current rating:** 10 Amps - **Mounting type:** DIN Rail Mount ## Images ![Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply - Image 1](https://m.media-amazon.com/images/I/616lKobvudL.jpg) ## Frequently Bought Together - Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) with Digital Input and RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply - Waveshare USB to RS485 Converter with Protection Circuits, Compatible with TVs - USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/604392647-waveshare-industrial-modbus-rtu-8-ch-relay-module-d-digital](https://www.desertcart.vu/products/604392647-waveshare-industrial-modbus-rtu-8-ch-relay-module-d-digital) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-18*