Coolwell
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8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
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8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
Ideal choice for industrial control equipments and/or applications with high communication requirements.
8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
Item #: 81323766

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

87% of respondents would recommend this to a friend

Item #: 81323766

CRC 37528

Price Details

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*All items will import from US

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Order now and get it around Monday, October 26
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Ideal choice for industrial control equipments and/or applications with high communication requirements.
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What Stands Out

PoE Compatibility
Simplifies installation with Power over Ethernet support, eliminating the need for separate power supplies and ensuring a clean, efficient setup.
Dual Protocol Support
Versatile communication options with both Modbus RTU and Modbus TCP protocols, allowing seamless integration into various industrial automation systems.
Durable Design
Housed in an industrial-grade rail-mount case, this module is built to endure harsh environments, ensuring longevity and reliability in demanding applications.

Product Details

Shop 8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case online at a best price in Costa Rica. B0CBRP8R5X
Connector TypeRj45 Jack
Contact TypeNormally Open
Current Rating10 A
Mounting Typerail mount
Operation ModeAutomatic
Wattage1000 watts
Coil Voltage36 volts
Contact Current Rating10 A
Maximum Switching Current10 A
Contact MaterialSilver
Brand NameCoolwell
UPC749877649638
Number of Packs1
Unit Count8 Count
Number of Items1
ManufacturerCoolwell
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • Industrial Automation

    Ideal for automating industrial processes due to its durable design and reliable communication protocols.

  • Smart Home Integration

    Perfect for tech-savvy homeowners looking to integrate multiple devices for smart control via Modbus protocols.

  • Remote Monitoring

    Beneficial for businesses needing remote control capabilities, allowing access and control over Ethernet and PoE.

Not Suitable For
  • Basic Home Users

    Not suitable for average users unfamiliar with industrial protocols or complex setups requiring extensive configuration.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is an 8-Ch Ethernet Relay Module and its key features?

    Answer: The 8-Ch Ethernet Relay Module is an advanced relay control device that features eight channels for remote switching. It offers Power over Ethernet (PoE) functionality, allowing both power and data to be transmitted through a single cable. Key features include support for Modbus RTU and Modbus TCP protocols, making it suitable for industrial automation applications. This module is ideal for controlling various equipment in smart building systems, industrial machinery, or remote monitoring setups, providing both convenience and flexibility.
  • Question: How does the Modbus RTU and TCP protocol enhance communication?

    Answer: The inclusion of both Modbus RTU and Modbus TCP protocols in this relay module enhances communication by allowing compatibility with various devices and networks. Modbus RTU is used for serial communication, while Modbus TCP supports networked environments over Ethernet. This dual support means that users can integrate the relay module into varied automation systems, improving interoperability and allowing for faster data transmission—crucial for time-sensitive operations in industrial scenarios.
  • Question: What applications can I use the 8-Ch Ethernet Relay Module for?

    Answer: The 8-Ch Ethernet Relay Module can be utilized in a wide range of applications, including home automation, industrial control systems, and smart grid systems. For instance, in a smart building, it can be used to control lighting, HVAC systems, or security cameras. In industrial settings, it can manage actuators or other heavy machinery remotely, enhancing workflow and operational efficiency. The flexibility of remote management makes it an excellent choice for both residential and commercial setups.
  • Question: Is the 8-Ch Ethernet Relay Module suitable for outdoor use?

    Answer: While the 8-Ch Ethernet Relay Module features an industrial-grade rail-mount case that provides durability and protection, it is primarily designed for indoor use. If outdoor installation is necessary, users should ensure proper weatherproofing and shielding from environmental factors. For outdoor applications, pairing the module with appropriate protective housings can extend its usability, ensuring that it remains functional even in varying outdoor conditions.
  • Question: What kind of power supply does the relay module require?

    Answer: The 8-Ch Ethernet Relay Module operates on Power over Ethernet (PoE), eliminating the need for a separate power supply. This feature simplifies the installation process and reduces cable clutter, as a single Ethernet cable can deliver both power and data. Users simply need a PoE-capable switch or injector, making it a practical choice for installations where power outlets are limited or for devices positioned in hard-to-reach places.
  • Question: Can the relay module be controlled via mobile devices?

    Answer: Yes, the 8-Ch Ethernet Relay Module can be integrated with various home automation systems that support mobile interfaces. By utilizing an associated application or web interface, users can control the module from their smartphones or tablets, providing remote access to switch the relay channels on or off. This remote control feature is especially useful for monitoring and managing machinery, lighting, or other electrically controlled systems, giving users full control from virtually anywhere.
  • Question: How many devices can connect to the 8-Ch Ethernet Relay Module simultaneously?

    Answer: The 8-Ch Ethernet Relay Module can handle multiple device connections simultaneously, which is ideal for larger setups. The specific number of devices that can connect is dependent on the network configuration and available bandwidth. Users can integrate several sensors or controllers that work with the relay module, providing a comprehensive automation solution. This scalability makes it an excellent choice for expanding operations or managing multiple systems at once.
  • Question: What is the maximum load that each relay can handle?

    Answer: Each relay channel in the 8-Ch Ethernet Relay Module is typically rated to handle a specific load, which varies by design specifications. Generally, relay load capacities can manage various electrical currents, making them suitable for controlling lights, motors, and other equipment. Users should always consult the product specifications to ensure that their connected devices fall within the allowable load ranges, preventing potential overloading and ensuring safe operation.
  • Question: Is installation of the 8-Ch Ethernet Relay Module difficult?

    Answer: The installation of the 8-Ch Ethernet Relay Module is straightforward, especially due to its rail-mount case design, which allows for easy attachment to existing mounting systems in control panels. With basic knowledge of electrical systems and network configurations, users can quickly set up the module without extensive training. The straightforward wiring for PoE and the clear documentation provided makes it accessible for both amateur enthusiasts and professional electricians.
  • Question: Where can I buy the 8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU Modbus TCP Protocol in Costa Rica?

    Answer: You can purchase the 8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU Modbus TCP Protocol on Ubuy, which offers a wide selection of electronic components and industrial devices. Ubuy ensures a seamless shopping experience, catering specifically to customers in Costa Rica. With their reliable service and easy-to-navigate platform, you can find the right products to meet your automation needs.

Coolwell IO Modules Editorial Review

The 8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol is designed for robust industrial applications, featuring a rail-mount case that ensures stability and ease of installation. With a maximum switching current of 10 A and a reliable normally open contact type, this relay module operates automatically, handling loads up to 1000 watts efficiently. Users appreciate the ease of setup and the quality build from the Coolwell brand. It effectively integrates into existing systems using standard RJ45 connectors, streamlining communication and control in automation setups.

Customer Reviews & Ratings

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Pros

  • Rail mount design for easy installation
  • Supports Modbus RTU and TCP protocols
  • Can handle 1000 watts for power loads
  • Durable silver contact material
  • Compatible with 36 volts coil voltage

Cons

  • Slight learning curve for beginners in automation setups

Platform Trust & Buyer Confidence

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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

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CRC 37528

Order now and get it around Monday, October 26

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Industrial 8-ch relay module
  • Supports Modbus RTU/Modbus TCP protocols
  • Easy to use with fast communication, stability, reliability, and safety
  • Features flash-on, flash-off function
  • Supports relay control through MQTT protocol
  • Onboard Optocoupler isolation, Reverse-proof circuit
  • Contact rating: ≤10A 250VAC/30VDC

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