Rs485 Relay
I 10 migliori prodotti di giugno 2025
Ultimo aggiornamento:
18 giugno 2025
Waveshare
Waveshare Industrial Modbus RTU 4-Ch Relay Module With RS485 Interface, 30A High Current, Onboard LED Indicators, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case
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An industrial 4-ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU Relay 4CH is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
Configurable device address (1~255), multi devices can be cascaded on RS485 bus. Features flash-on, flash-off function, by passing arguments to the command, it is possible to turn on the relay for a while and then close it automatically
Onboard voltage regulator, supports 7V~36V wide voltage supply. 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
Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability. Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection. High quality relay, contact rating: ≤30A 250V AC or ≤30A 28V DC. Rail-mounted ABS plastic enclosure, easy to install, safe to use. 3 LEDs for indicating the MCU status and signal transceiving status
48,99 € SU AMAZON
Waveshare
Waveshare Industrial Modbus RTU 8-ch Relay Module with RS485 Interface Multi Isolation Protection Circuits Comes with an ABS Enclosure
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96
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#2
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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
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
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95
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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
Waveshare
Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply
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88
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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 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
52,99 € 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
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86
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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
Waveshare
Waveshare Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits, Mainly Used for Industrial Control, Smart Home, Smart Agriculture, Breeding & Farming
Spedizione gratuita
82
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[Onboard Multiple Isolation Protection Circuit] Multiple Protections, More Safe And Reliable
[Rail-Mount Case Design] Rail-Mounted ABS Protective Enclosure, Easy To Install, Safe To Use
[RS485 Communication] Configurable Device Address (1~255), Multi Devices Can Be Cascaded On RS485 Bus. In Case Of Many Devices Are Cascaded, Or The Communication Distance Is Quite Long, It Is Necessary To Use RS485 Repeaters
[Relay Connection] Contact Rating Of The Onboard Relay Up To 10A 250VAC/30VDC. Directly Controlling 220VAC Home Appliances, Or Devices Below 30VDC
[Applications]1. Industrial Control. Valve control, pump station control, unattended industrial control system. 2. Smart Home. Controlling appliances like air conditioner, access control, purifier, water heater, etc. 3. Smart Agriculture. Controlling door curtain motor, air blower, etc. 4. Breeding & Farming. Controlling ventilator, lighting, water supply, feeding system, etc
89,99 € SU AMAZON
EBYTE
868MHz 915MHz SX1268 Lora Wireless Data Transmission Station E95-DTU (900SL30-485) RS485 30dbm 10KM Modbus Relay Network LBT
79
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E95-DTU (900SL22/30-485) è una radio di trasmissione dati wireless che utilizza la tecnologia di modulazione LoRa di grado militare. Ha una varietà di metodi di trasmissione.
Funziona nella banda di frequenza (850,125 MHz ~ 930,125 MHz) (predefinito 868,125 MHz) e la radio fornisce un'interfaccia RS485/RS232 trasparente. , Utilizzando guscio in plastica, struttura di installazione tipo rotaia, supporto 8 ~ 28 V (DC). La tecnologia a spettro di diffusione LoRa porterà una distanza di comunicazione più lunga e ha il vantaggio di una forte capacità anti-interferenza.
Come mezzo di comunicazione, la radio digitale wireless ha un certo campo di applicazione come fibra ottica, microonde e cavo aperto: fornisce una trasmissione dati in tempo reale e affidabile dei segnali di monitoraggio nelle reti private in determinate condizioni speciali, a basso costo, installazione e manutenzione. Ha le caratteristiche di convenienza, forte capacità di diffrazione, struttura di rete flessibile e lunga copertura.
È adatto per occasioni come molti punti e sparsi e ambiente geografico complesso. Può essere collegato con PLC, RTU, misuratore di pioggia, misuratore di livello liquido e altri terminali dati.
Supporta la trasmissione del protocollo Modbus
Supporta la funzione LBT, la radio attende automaticamente la trasmissione in base all'intensità del rumore ambientale corrente. Migliora notevolmente il tasso di successo della comunicazione della radio in ambienti difficili
30,64 € SU AMAZON
Waveshare
Waveshare Modbus RTU 8-Ch Latching Relay Module (C) With RS485 Interface, Multi Isolation Protection Circuits, Rail-Mounted Case
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77
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An industrial 8-ch latching relay module controlled via RS485 bus, which can keep the relay state unchanged after power loss. It adopts Modbus RTU protocol, featuring embedded protection circuits such as power isolation, magnetical isolation, and TVS diode, etc. It also comes with an ABS enclosure. Easy to use. Due to its fast communication, stability, reliability, and safety, it is ideal for industrial control equipments and applications with high communication requirement.
Adopts latching relay, the state of the relay can remain unchanged after power loss. Configurable device address (1~255), multi devices can be cascaded on RS485 bus. Features flash-on, flash-off function, by passing arguments 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. Adopts dedicated latching relay driver chip for stronger and more stable driving ability
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
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
54,99 € SU AMAZON
Waveshare
Waveshare Industrial Modbus RTU 8-Ch Relay Module (B) with RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply
Spedizione gratuita
71
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#9
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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 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
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
47,99 € SU AMAZON
XIAOJUN
XIAOJUN DC 24V 8 RS485 Relay Board Modbus RTU UART Control Switch DIN35 Rail Box per Automation Control
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68
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#10
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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
31,62 € SU AMAZON
rs485 relay switch
relay
#1 VINCITORE
