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Green circuit board with eight black relay modules and Ethernet port

Hetai Tech

Hetai Tech 8CH LAN Ethernet Relay Board TCP/UDP Controller Module WEB Server digital input 5V 12V 24V DC POWER

SKU CH-H79X-9MN43

Eight-channel LAN relay board controlled via TCP or UDP with web interface, configurable delays up to 65535 seconds, and 5 V, 12 V or 24 V DC power options

  • 8-channel LAN relay control via TCP/IP networking
  • Web-based configuration interface for remote management
  • Programmable delay timer up to 65535 seconds per channel
  • Supports 5V, 12V and 24V DC power inputs
  • Eight independent relay channels with digital input monitoring

8-channel LAN relay module

This Hetai Tech board provides eight independently controllable relay channels over a wired Ethernet link. It accepts DC supply voltages of 5 V, 12 V or 24 V and is aimed at integrators who need remote switching for industrial or automation tasks. The on-board web server allows configuration and manual control from a standard browser. Buyers who require Power-over-Ethernet supply or wireless connectivity will need a different device.

Thermals noise and power draw

The module draws only the modest current required to energise its relay coils and the Ethernet controller, so heat output remains low in typical indoor cabinets. No active cooling is fitted and the board operates silently because it has no moving parts. Power consumption scales with the number of relays held in the pulled state, but exact wattage figures are not supplied by the manufacturer.

Bundled software and accessories

A built-in web server delivers a browser-based interface for channel control, status polling and delay programming without extra software installation. The TCP protocol returns an eight-character string showing the current state of every relay after each command. Delay values from 1 to 65535 seconds can be appended to any channel command using a colon separator, enabling timed pull or release sequences directly from the network host.

Highlights

  • 8-channel LAN relay control via TCP/IP networking
  • Web-based configuration interface for remote management
  • Programmable delay timer up to 65535 seconds per channel
  • Supports 5V, 12V and 24V DC power inputs
  • Eight independent relay channels with digital input monitoring

Specifications

No published specifications for this item yet.

Questions about this item

How do I wire the 5V, 12V or 24V DC power supply to the 8-channel relay board for installation?

Connect the chosen DC voltage to the board's power terminals matching the relay coil rating; the module accepts 5V, 12V or 24V DC input.

What maintenance does the Ethernet relay controller require over time?

No scheduled maintenance is defined; inspect relay contacts periodically for wear and replace any channel that fails to switch after the 1-65535 second delay cycle.

What is the first limit reached during continuous TCP command streams?

Each channel delay maxes out at 65535 seconds, so sustained automation cannot exceed that interval per command.

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