The Best Ethernet Relay Board of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Ethernet Relay Board of 2022. Check our ranking below.
2,381 Reviews Scanned
Rank No. #1
RPi PoE Relay Board Module for Raspberry Pi 3B+ 4B
- Supports Raspberry Pi 3B+ 4B, the RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent. And support 802.3af Power-over-Ethernet (PoE) from Raspberry Pi gigabit ethernet port, allows you to power your Raspberry Pi using Power over Ethernet–enabled networks.
- Power-over-Ethernet (PoE): IEEE802.3af compliant. Support PoE applications in both of Fast / Gigabit Ethernet environments. Fully isolated switched-mode power supply. Support wide input voltage range 37Vdc to 57Vdc. output 5V/2.5A
- Subminiature high power relays, loads up to 10Amp 277VAC / 28VDC. One LED for power and three LEDs for relays status indicating. Darlington transistors circuit driving relay, improve the reliability of action. Relay control jumper, allows to control the relays by custom pins other than the default pins
- Terminal blocks: pitch - 5.0mm/0.197", wire size 26~12 AWG / 1.5mm square, stripping length 5mm/0.2", Metric M2.5 slotted screw. Support 40-pin GPIO expansion connection, pin height 8mm/0.32"
- Package included: 1x RPi PoE Relay Board, 4x M2.5x16mm nylon standoffs, 4x M2.5x6mm nylon standoffs, 4x M2.5 nylon nuts (NOTE: the item not include Raspberry Pi module).
Rank No. #2
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
- 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
Rank No. #3
8-CH Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protection Circuits
- 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.
Rank No. #4
Ethernet Controller Network Web Server + 16-Channel Relay Module with RJ45 Interface for Controlling Lights, and Refrigerator
- WIDE APPLICATION-- The board can be widely used for controlling industry equipment and electrical appliances, such as lights, air-conditioning or refrigerator at your home.
- REMOTELY CONTROLLING YOUR DEVICES-- You can feel to enjoy the remote controlling of your other devices with the Ethernet controller board. The board has integrated the web server, you can control electrical appliances via opening the page on your devices like computer, pad or smart phone when you are in office.
- WITH 16 CHANNEL RELAY-- This Ethernet controller board comes with 16-channel relay. So, you could control up to 16 devices remotely on LAN or WAN at the same time, meet your different requirements.
- RJ45 INTERFACE-- This module is equipped with RJ45 interface, via RJ45 telecommunications connection for network control. It features high stability and high precision, easy to install and operate.
- UNIQUE TCP CONNECT CONTROL-- The module as TCP server can accept client control when connect to remote server as TCP client.
Rank No. #5
Ethernet Controller Module, TCP/UDP Controller Module with 2-Way Relay Board Delay Switch DC for Replacement of Web Server Electronic Kit
- ✅【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.
Rank No. #6
LAN Ethernet Controller Module, TCP/UDP Controller Module with 2-Way Relay Board Delay Switch DC(5-24V) for Replacement of Web Server Electronic Kit Circuit Board
- Industrial grade microcontroller as the main control chip
- Onboard 2-way relay with relay with absorbing diode circuit
- With 1 power indicator, each relay has a state indicator, the light is on and the relay is closed.
- The relay module can be extended to reach 8 outputs. Note: The relay module should be active high.
- Module parameters such as module IP address, can be configured through the network
Rank No. #7
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
- ✅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.
Rank No. #8
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-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.
Rank No. #9
Bewinner Ethernet Control 16-Channel Relay Board - RJ45, TCP/IP On-Off Output Relay for Smart Home
- 【16-Channel Relay Module】This is an Ethernet controller board that is compatible with 16-channel relays. Using the controller module and 16-channel relays, you can remotely control up to 16 devices on LAN or WAN.
- 【Remote Control】The Ethernet control panel integrates a web server. When you are in the office, you only need to open the page on your computer, pad or smart phone to control the lights, air conditioners or refrigerators in your home.
- 【Ethernet Control Module】This Ethernet relay module adopts RJ45 interface, through the RJ45 telecommunication connection for network control, using the Ethernet control board, you can enjoy the fun of remotely controlling other devices at will.
- 【TCP Connection Control】The unique TCP connection control of the relay module corresponds to the characteristics. The local serves as a TCP server, and when connected to a remote server, it serves as a TCP client to accept control.
- 【Quality Service】If the product has any quality problems or you have any questions about this product, you can us at any time,we have a 24-hour online professional customer service team.we will try our best to solve your problem in time,please rest assured to buy.
Rank No. #10
Industrial 8-Ch ESP32-S3 WiFi Relay Module, Onboard RS485, Digital Input, Relay, Ethernet Port and Multiple Isolation Protection Circuits, Supports RS485 and Bluetooth/WiFi Remote Control
- Industrial 8-Channel ESP32-S3 WiFi Relay Module, based on ESP32-S3 microcontroller, built-in 32-bit LX7 dual-core processor, up to 240MHz, integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication
- Industrial 8-Ch WiFi Network Relay Module, onboard digital input, RS485, and ethernet port interfaces. Built-in multiple isolation protection circuits such as power isolation and optocoupler isolation, more safe, stable and reliable
- Supports RS485 and Bluetooth / WIFi Remote Control, onboard 8-ch relays and 8-ch digital inputs, contact rating of the onboard relay up to 10A 250V AC / 30V DC, directly controlling 220VAC home appliances, or devices below 30V DC
- Digital Input, supports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation
- Supports Arduino IDE, comprehensive SDK, online development resources, tutorials, and technical support are provided, please feel free to contact us if you need
Last update on 2025-11-12 / Affiliate links / Images from Amazon Product Advertising API
How Do You Buy The Best Ethernet Relay Board?
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This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:
- Brand Value: Every brand of Ethernet Relay Board has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an Ethernet Relay Board?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your Ethernet Relay Board.
- Customer Ratings: Number ratings grade Ethernet Relay Board objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Ethernet Relay Board.
- Product Quality: You don’t always get what you pay for with an Ethernet Relay Board, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an Ethernet Relay Board is should be an indication of how long it will work out for you.
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