{"product_id":"waveshare-modbus-rtu-32-channel-relay-module","title":"Waveshare Modbus RTU 32-Channel Relay Module With RS485 Interface and Isolation Protection","description":"\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003e Description:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Waveshare Modbus RTU 32-Channel Relay Module is a robust industrial-grade relay control solution designed for reliable performance in automation and remote control systems. Communicating via the RS485 interface and using the Modbus RTU protocol, this module ensures seamless integration with PLCs, SCADA systems, and other industrial controllers.\u003c\/p\u003e\n\u003cp\u003eBuilt with multiple isolation protection circuits, including power supply isolation, magnetic isolation, a resettable fuse, and a TVS diode, it offers superior protection against electrical surges and interference. Housed in a durable ABS enclosure, the module is engineered for long-term deployment in demanding environments.\u003c\/p\u003e\n\u003cp\u003eWith high-speed, stable, and secure communication, this 32-channel relay board is perfect for industrial automation, distributed control systems, smart energy solutions, and any application requiring safe, efficient, and scalable relay control.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 1800px; height: auto;\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-32CH\/Modbus-RTU-Relay-32CH-details-1.jpg\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003e Specifications:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 7~36 V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCommunication interface: RS485\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ebaudrate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDefault communication format: 9600, N, 8, 1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRelay channels: 32\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eContact form: 1NO 1NC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eContact rating: ≤10A 250VAC\/30VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCommunication protocol: Standard Modbus RTU protocol\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRS485 address: 1~255\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLED indicators:\u003cbr\u003eSTA: The MCU indicator keeps flashing when the MCU is normally working.\u003cbr\u003e                  TXD: TX indicator, lights up when sending data\u003cbr\u003e                  RXD: RX indicator lights up when receiving data\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003e Features:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfigurable device address (1~255); multiple devices can be cascaded on the RS485 bus\u003c\/li\u003e\n\u003cli\u003eFeatures a flash-on, flash-off function. It is possible to turn on the relay for a while and then close it automatically via a command\u003c\/li\u003e\n\u003cli\u003eOnboard voltage regulator chip, supports 7~36V wide voltage power supply\u003c\/li\u003e\n\u003cli\u003eOnboard unibody power supply isolation provides a stable isolated voltage and needs no extra power supply for the isolated terminal\u003c\/li\u003e\n\u003cli\u003eOnboard unibody magnetic isolation allows signal isolation, high reliability, strong anti-interference, and low power consumption\u003c\/li\u003e\n\u003cli\u003eOnboard resettable fuse and TVS (Transient Voltage Suppressor) effectively suppress surge voltage and transient spike voltage in the circuit, provide over-current\/over-voltage protection, are are lightning-proof, and anti-electrostatic\u003c\/li\u003e\n\u003cli\u003eOnboard Optocoupler isolation prevents the relay from being interfered with by high-voltage circuits\u003c\/li\u003e\n\u003cli\u003eOnboard a dedicated relay driver chip with built-in freewheeling diode protection, the driving ability is stronger and more stable\u003c\/li\u003e\n\u003cli\u003eReverse-proof circuit prevents the circuit from being damaged accidentally by incorrect connection\u003c\/li\u003e\n\u003cli\u003eHigh-quality relay, contact rating: ≤10A 250VAC\/30VDC\u003c\/li\u003e\n\u003cli\u003eRail-mounted ABS case, easy to install, safe to use\u003c\/li\u003e\n\u003cli\u003e3 LEDs for indicating the MCU status and signal receiving status\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003e Product Interface:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-32CH\/Modbus-RTU-Relay-32CH-details-3.jpg\" style=\"width: 1800px; height: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003e Applications:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-32CH\/Modbus-RTU-Relay-32CH-details-11.jpg\" style=\"width: 1800px; height: auto;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003e Package Included:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e1 x Waveshare Modbus RTU 32-Channel Relay Board \u003c\/em\u003e\u003c\/p\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":46911376785575,"sku":null,"price":5812.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0618\/9042\/9095\/files\/WaveshareModbusRTU32-ChannelRelayBoardRS485CommunicationModule_4.webp?v=1753269293","url":"https:\/\/rees52.com\/products\/waveshare-modbus-rtu-32-channel-relay-module","provider":"REES52","version":"1.0","type":"link"}