Rs485 Relay Switch
I 10 migliori prodotti di settembre 2025
Ultimo aggiornamento:
19 settembre 2025
Waveshare
Waveshare Industrial 6-Channel ESP32-S3 WiFi Relay Module, Onboard RS485 / Pico HAT Interfaces, With Multiple Isolation Protection Circuits, Industrial-Grade, Rail-Mount Case
Spedizione gratuita
99
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Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz. Built in buzzer, RGB colorful LED, power supply and RS485 TX/RX indicators for monitoring the operating status of the module
Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, with superior RF performance. High quality relay, contact rating: ≤10A 250VAC/30VDC. Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors. Onboard USB Type-C port for power supply, firmware downloading and debugging
Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications. Onboard digital isolation to prevent interference from external signal
Onboard optocoupler isolation to prevent interference from external high-voltage circuit connected to the relay. Rail-mounted ABS case, easy to install, safe to use
Onboard 40PIN header compatible with some Raspberry Pi Pico HAT, for expanding more functions such as RTC / CAN / RS232 / LoRa / sensor, etc. Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal
43,99 € SU AMAZON
XIAOJUN
XIAOJUN DC 24V 8 RS485 Relay Board Modbus RTU UART Control Switch DIN35 Rail Box per Automation Control
Spedizione gratuita
96
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Tensione di : DC24V (versione 24V)
Apri, chiudi, jog, autobloccante, interblocco e ritardare sei modalità di
8 porte di ingresso fotoelettricamente isolate (NPN è a basso livello). La relazione input / output può essere impostata su associata (impostazione predefinita) e non associata tramite comandi.
Corrente di : standby 13MA, 1 relè di conduzione 41MA, 2 relè di conduzione 69MA, 3 relè di conduzione 95MA, 4 relè di conduzione 121MA, 5 relè di conduzione 149MA, 6 relè di conduzione 175MA, 7 Due relè conducono 199MA, 8 relè conducono 225MA
Supporto istruzioni MODBUS 03 06 16 codice funzione
24,34 € SU AMAZON
Waveshare
Waveshare Industrial Modbus RTU 8-ch Relay Module with RS485 Interface Multi Isolation Protection Circuits Comes with an ABS Enclosure
Spedizione gratuita
96
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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 ADI magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.
Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, llgthningproof & anti-electrostatic. Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit.
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. 3 LEDs for indicating the MCU status and signal transceiving status.
45,99 € SU AMAZON
Coolwell
RS485-HUB-2P Isolated RS485 Hub, 2-Port RS485 Expansion via 1 RS485 Master, Signal Repeater & Network Relay, Industrial-Grade with DIN Rail Mount, 300–460800bps Baud Rate Support
90
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✔ Industrial-Grade Isolated RS485 Hub (2-Ch Expansion): Expand your RS485 network by converting 1 master port into 2 sub-ports, with full isolation and signal relay, ideal for stable communication in industrial and commercial environments.
🔁 RS485 Signal Relay & Cascading Communication Support: Supports point-to-point, bus, and star topology RS485 networks, enabling cascading of multiple devices and long-distance data relay with automatic signal amplification.
⚡ Optoelectronic Isolation & Surge Protection: Equipped with photoelectric isolation, this RS485 hub provides anti-electrostatic, anti-surge, and lightning protection, safeguarding equipment from ground potential differences.
📶 Wide Baud Rate Auto-Adaptive (300–460800bps): Supports a wide baud rate range with self-adaptive communication, making it compatible with most industrial controllers, sensors, and RS485-enabled devices.
🛠️ DIN Rail & Wall-Mountable Design: Built with a 35mm DIN rail clip and wall-mount support, the hub offers quick, reliable installation in control cabinets, industrial enclosures, and monitoring stations.
18,23 € SU AMAZON
EBYTE
Ethernet I/O Networking Module Switch Value Acquisition Control ModBus ME31-AXAX404 RS485 Serial Port RJ45 Network port
84
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ME31-AXAX4040 is a network I/O networking module with 4-way A relay output and 4-way dry connection input detection, supporting Modbus TCP protocol or Modbus RTU protocol, and the device can also be used as a simple Modbus gateway (automatically issuing non-native Modbus address instructions via serial / gateway).
Support standard Modbus RTU protocol and Modbus TCP protocol;
Support various configuration software/PLC/touch screen;
The switch input (DI) supports the counting function of rising edge, level and falling edge;
Support DNS function and domain name resolution
33,89 € SU AMAZON
iiunius
Industrial ESP32-S3 1-Channel WiFi Relay Module with RS485, Bluetooth 5, DIN Rail Mount, 10A Relay Switch, Smart Home, IoT Automation, Fits Arduino
82
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✔ Industrial 1-Channel ESP32-S3 Wi-Fi & Blue-tooth Relay: Powered by ESP32-S3 dual-core 32-bit LX7 processor, supports WiFi and Bluetooth 5, ideal for industrial automation, smart home, and AIoT relay projects.
⚡ High-Power 10A Relay for AC/DC Devices: Equipped with a 1-channel relay rated ≤10A 250VAC / 30VDC, allowing safe control of appliances, lighting, motors, and industrial loads via Wi-Fi or RS485 relay interface.
🛡️ Comprehensive Isolation Protection Circuits: Includes opto-isolator, digital isolation, and power isolation, ensuring stable operation, interference protection, and industrial-grade safety.
📶 RS485 Communication for Networked Devices: Built-in isolated RS485 port, supports Modbus RTU, multi-node relay networks, and cascading multiple modules, perfect for industrial control, IoT gateways, and automation systems.
🛠️ DIN Rail Mount & Easy Arduino Integration: Rail-mounted protective case simplifies installation in control panels. Fits Arduino programming, SDKs, and MQTT protocol, enabling remote control, scheduling, and cloud integration.
27,83 € SU AMAZON
Coolwell
ESP32-S3 WiFi Relay Module, Industrial 1-Channel Relay Controller with RS485 Interface, Bluetooth 5, DIN Rail Mount, 10A Relay Switch for Smart Home, IoT, Fits Arduino
78
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✔ Industrial-Grade ESP32-S3 Relay Module with Wi-Fi & Blue-tooth: Based on the ESP32-S3 dual-core processor, this Wi-Fi relay module integrates Bluetooth 5 and delivers AIoT-ready performance for smart home, automation, and industrial control projects.
⚡ 1-Channel 10A Relay for High-Power Devices: Equipped with a high-quality 1-channel relay, supporting ≤10A 250VAC/30VDC, allowing you to safely control appliances, lights, motors, and industrial equipment via Wi-Fi relay switch or RS485 relay.
🛡️ Multiple Isolation Protection Circuits for Reliability: Features opto-isolator protection, digital isolation, and power isolation to safeguard against high-voltage interference, making this industrial IoT relay safe, stable, and highly reliable.
📶 RS485 Interface with Flexible Networking: Built-in isolated RS485 communication port, supporting Modbus and cascading with RS485 relay devices, ideal for industrial automation, data acquisition, and IoT gateway applications.
🛠️ Easy Installation with DIN Rail Mount & Arduino Support: Comes with a rail-mounted protective case for quick installation in control cabinets. Supports Ar-duino programming, SDKs, and MQTT protocol for seamless IoT cloud integration and remote control.
27,83 € SU AMAZON
Waveshare
Waveshare Modbus RTU 16-Ch Relay Module, RS485 Interface, with Multiple Isolation Protection Circuits,Apply to Industrial Control,Smart Home,Smart Agriculture,Breeding and Farming
Spedizione gratuita
76
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This product is an industrial 16-ch relay module controlled via RS485 bus, adopts Modbus RTU protocol, built-in protection circuits such as power supply isolation, ADI magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS case.
The Modbus RTU 16-Ch Relay is an extremely user-friendly device. With its fast communication, stability, reliability, and safety features, it stands out as an excellent option for industrial control equipment and applications that demand high communication capabilities.Rail-mounted ABS case, easy to install, safe to use.
Configurable device address (1~255), multi devices can be cascaded on RS485 bus.High quality relay, contact rating: ≤10A 250VAC/30VDC.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 ADI 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.Onboard dedicated relay driver chip, with built-in freewheeling diode protection, the driving ability is stronger and more stable.Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection.3 LEDs for indicating the MCU status and signal transceiving status.
68,99 € SU AMAZON
Moliuoly
Moliuoly Trasmettitore di sensore di pioggia e neve RS485, stazione meteorologica IP65, impermeabile 10-30 V, uscita relè DC, sensibilità regolabile per serra, cantiere, verde (relay Switch)
75
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Sensibilità del sensore regolabile: il trasmettitore del sensore di pioggia e neve dispone di sensibilità del sensore regolabile, che offre flessibilità per l'uso. Permette di avvisi e reset di ritardo per prevenire gli allarmi locali frequenti.
Misurazione dell'impedenza CA: questo sensore utilizza la misurazione dell'impedenza AC per rilevare condizioni di pioggia e neve in diversi ambienti. Assicura una lunga durata degli elettrodi ed elimina i problemi di ossidazione.
Ampia applicazione: adatto per misurare pioggia e neve in serre, allevamenti, cantieri, edifici e altri ambienti. Ha un tasso di falso allarme quasi trascurabile.
【Protezione IP65】 Dotato di protezione IP65, questo trasmettitore è antipolvere e impermeabile. Può essere installato all'aperto e resistere a condizioni climatiche difficili.
Facile installazione e integrazione: il trasmettitore del sensore pioggia e neve è facile da installare e si adatta perfettamente ai sistemi esistenti. Dispone di un'uscita RS485 per il monitoraggio in tempo reale e il controllo quando collegato a dispositivi compatibili.
17,01 € SU AMAZON
Gissroys
RTU Relays Switches 1 Canale 3.3-30 V Ingresso Ingresso RTU Relè Interruttore di uscita 485 Comunicazione Per modalità bus automazione
70
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#10
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Con relè in grado di gestire 10A/250V o 10A/30V
Perfetto per sistemi di automazione, controlli industriali ed elettronica. Garantisce affidabilità in diverse applicazioni
Integrazione dell'esperienza nel nostro RTU 1 Channel 5V Relay con chip di conversione RS485 per prestazioni stabili
Questo ideale per ingegneri e hobbisti. Questa soluzione fiscale efficiente si rivolge ai loro progetti elettronici
Questo supporta RTU standard e offre interfacce UART RS485 con velocità di comunicazione di 4800/9600/19200bit/s, per garantire l'opzione di connessione
8,56 € SU AMAZON
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