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Green circuit board with eight black relay modules, terminal blocks, and Ethernet port

Hetai Tech

Hetai Tech 8-Channel Ethernet Relay Board TCP UDP Network Delay Switch

SKU CH-7RAS-BEQK6

An 8-channel relay board controlled over TCP or UDP with configurable local buttons, 1-65535 second delay timing, and 9-24V input with reverse polarity protection

  • 8 channels switched over Ethernet for remote load control
  • TCP and UDP support with 1-65535 second delay commands
  • Industrial STC microcontroller ensures reliable operation
  • 9-24V input with reverse polarity protection
  • Power-on state recovery restores relays after outage

Industrial relay board for network automation

This 8-channel relay board connects to an Ethernet network so you can switch loads remotely over TCP or UDP. Each channel includes a local button input for manual override. The module suits installers who need programmable on-off control with configurable delay timing from 1 to 65535 seconds.

Check your network and power before ordering

The board requires a 9 to 24 V DC supply with reverse-polarity protection built in. Verify that your LAN infrastructure supports wired TCP or UDP communication and that you can assign a static or reserved IP address. Ensure the loads you intend to switch are within the relay contact ratings supplied by the manufacturer.

Industrial STC microcontroller with status LEDs

An onboard STC microcontroller drives eight high-quality relays fitted with freewheeling diodes. Each relay has a dedicated state indicator that lights when the contact is closed, plus a single power indicator. Relay terminals accept user loads directly and the module can restore the last relay states after a power loss.

How it compares

Measured against everything we stock in HDMI & AV Selector Switches, at today’s prices. Recalculated every night.

Price $51.99
Pricier than about 83% of the 1,998 comparable items (median $27.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box and is anything else required?

The package contains one relay board only; you will need to supply a 9-24 V power source and the load wiring for each of the eight relay outputs.

How do I choose between TCP and UDP operation for this board?

Both protocols are supported simultaneously; select TCP for reliable acknowledged commands or UDP for lower-overhead broadcast control depending on your network architecture.

What does the 65535 second figure mean when the board is installed in a system?

It is the maximum programmable on/off delay per channel, allowing each relay to stay energised for up to 65535 seconds before automatically releasing.

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