Top 10 Best ethernet relay in 2026

Last Updated - 6/9/2026

🏆Best Choice

Digital Loggers

Iot Relay - Enclosed High-power Power Relay for Arduino, Raspberry Pi, PIC or Wifi, Relay Shield, Automatic

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Safe, Reliable Power Control
•One circuit, 4 outlets, 2x NC, 2x NO
•Wires to your Arduino, Raspberry Pi, PIC, or other micro
•Takes the place of a relay board. Fully assembled and ready to use.
•Includes surge supression, debounce, safety breaker

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$36.25

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waveshare

Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protection Circuits, Industrial Grade Rail-Mount Case

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•An industrial 30-ch relay module controlled via Ethernet port, adopts Modbus RTU/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case. Applicable to Industrial Control, Smart Home, Smart Agriculture, Breeding / Farming
•The Modbus POE ETH Relay 30CH 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 requirements
•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. Supports DC 7~36V wide range power input and PoE power supply. Supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo
•Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit. 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status. 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status
•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

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$86.99

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Coolwell

Coolwell 8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•8 channel ETH relay, 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
•8-ch ETH POE relay, supports DC 7~36V wide range power input and PoE power supply
•8-ch POE relay module, supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo
•8 channel POE relay, high-quality relay, contact rating: ≤10A 250VAC/30VDC; rail-mounted ABS case, easy to install, safe to use
•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

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$51.83

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DEWIN

Ethernet Controller Module, TCP/UDP Controller Module with 2-Way Relay Board Delay Switch DC for Replacement of Web Server Electronic Kit

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•✅【Control chip】: The module utilizes an industrial-grade STC microcontroller as the primary control chip.
•✅【Relay function】: Onboard two high-quality relays with diode circuits for reliable switching operations.
•✅【Indicator lights】: The module includes a power indicator and individual state indicators for each relay, allowing easy identification of relay status.
•✅【Expandability】: The relay module can be expanded to accommodate up to eight outputs, increasing versatility and scalability.
•✅【Network configuration】: Module parameters, such as the IP address, can be conveniently configured through the network, facilitating easy setup and customization.

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$31.39

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waveshare

8-CH Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protection Circuits

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•This product is an industrial 8-ch relay module controlled via Ethernet port, adopts Modbus RTU/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case.
•The Modbus POE ETH Relay 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 requirements.
•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.
•Supports DC 7~36V wide range power input and PoE power supply. Supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo.
•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.
•Comes with Online Development Resources and Tutorials to help you get started quickly: bit.ly/45dleiL

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$51.83

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waveshare

Waveshare 8-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protection Circuits, Industrial Grade Rail-Mount Case

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•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。 Supports DC 7~36V wide range power input and PoE power supply
•Supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo
•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 case, easy to install, safe to use。 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status

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$53.99

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waveshare

Waveshare 8-Ch Ethernet Relay Module (B) with Digital Input, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protection Circuits, Industrial Grade Rail-Mount Case

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•✅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. Supports DC 7~36V wide range power input and PoE power supply
•✅Supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo. 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. 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status
•❤️Rich WiKi Resources❤️ We provide official Wiki resources, please contact us for more information.

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$61.99

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Walfront

Web Controlled Ethernet Relay Controller 8 Channels - 10A 250V AC Remote Switch Module TCP/IP Network Access 485 Support White Housing

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Port: Ethernet TCP/IP RJ45 port, IP port can be modified
•WEB Server: WEB server allows accessing and controlling the relay via WEB
•8‑Channel Relay Switch: 8-Channel 250V/AC 10A relay control individually. 8 external control outputs and active low level can control switch or sensor, etc.
•Supports: Supports status return, can display current status of the relays. With Reset function, short press to reset, long press to restore factory setting. Supports 485 networking
•Protocol: Provide protocol for re-engineering, when connected to router, it allows access control via Android, Tablet, system from anywhere in the world with network

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$44.83

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waveshare

8-CH Ethernet Relay Module, Adopt Modbus RTU/Modbus TCP Protocol, Supports PoE Power Supply, with Various Isolation and Protection Circuits, Industrial Grade Rail-Mount Case

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•This product is an industrial 8-ch relay module controlled via Ethernet port, adopts Modbus RTU/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case. 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status.
•Supports sending Modbus RTU/TCP protocol commands via Ethernet port to control relay and various devices. Supports Multiple Communication Modes, Adopts Modbus Protocol, Supports TCP Server / TCP Client / UDP Mode / UDP Multicast / HTTP / MQTT. Supports Modbus RTU protocol/Modbus TCP protocol.
•【Multi Configuration Methods】 Supports software and Web Browser Configuration, Obtaining Dynamic IP Via DHCP, connecting to domain name server via DNS protocol
•【Multi Power Supply Options, Wide Range Power Input】 DC Power port: directly uses a power plug for power supply; Screw terminal: DC 7~36V wide range power input; PoE port: IEEE 802.3af PoE compliant
•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 Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit.

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$51.83

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UeeKKoo

8-CH Ethernet Relay Module (B) with Digital Input, Modbus RTU/Modbus TCP Protocol, Support DC 7~36V Wide Range Power Input and PoE Power Supply, with Various Isolation and Protection Circuits

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•8-CH Modbus POE ETH Relay-- This product is an industrial 8-ch relay module controlled via Ethernet port, with 8-ch digital input, adopts Modbus RTU/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case.
•Adopts Modbus RTU/Modbus TCP Protocols--Supports reading digital input by sending Modbus RTU/Modbus TCP protocols commands via Ethernet for relay output control.
•Supports Multiple Communication Modes, Adopts Modbus Protocol--Supports TCP Server / TCP Client / UDP Mode / UDP Multicast / HTTP / MQTT. Supports Modbus RTU protocol/Modbus TCP protocol.
•Multi Configuration Methods--Supports software and Web Browser Configuration, Obtaining Dynamic IP Via DHCP, connecting to domain name server via DNS protocol. Digital Input--Supports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation.
•Multi Power Supply Options, Wide Range Power Input--DC Power port: directly uses a power plug for power supply; Screw terminal: DC 7~36V wide range power input; PoE port: IEEE 802.3af PoE compliant.
•Multiple modes for various automation scenarios--Supports multiple relay control modes, each channel supports independent control mode setting: Normal Mode; Flash on/Flash off; Linkage Control; Toggle Mode.
•Relay Connection--Contact rating of the onboard relay up to 10A 250VAC/30VDC. Directly controlling 220VAC home appliances, or devices below 30VDC.
•Rail-mounted ABS plastic enclosure, easy to install, safe to use. With Multiple LED Indicators, Easy To Monitor The Operating Status.

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$59.51

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