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24-ch, 5 Amp Relay, 24-ch Digital Inputs, Isolated USB Controlled, with Voltage Suppressors on Relay Contacts

  • 24-ch Relay Module
  • 24-ch Digital Input
  • Wide Voltage Input Range
  • GND or Positive Activation Signals
  • 24-ch ‘Dry-Contact’ Digital Inputs
  • 24-ch Wet Digital Inputs
  • Onboard Watchdog Protection
  • Open Source code samples
  • Transparent Daisy-Chain Facility
  • Voltage Suppressors for low noise and increase relays life time.
  • DIN-Rail mounting ready



Manufactured by:


Intelligent 24 Relays Controller

The IA-3127-U2i is an intelligent 24 Relays Controller, with 24-ch Digital Input and multi-drop operation ready, in the original IA-3131 foot print, The IA-3127-U2i is an Industrial grade relay controller, handles both ‘Dry-Contact’ and ‘Wet’ Digital inputs, activated by GND or Positive Signal, user defined, easy operated, supported by a simple, yet, powerful software command list.

This updated device includes Isolated USB port, 5 Amp relays ad Voltage Suppressor devices on all relays contacts to reduce EMI/RFI noise and to increase the device MTBF.  The IA-3127-U2i is part of the IA-3000 Series. This series includes Relay controllers, Digital and Analog controllers, usually equipped with USB, RS-232/485, IP or wireless communication ports.

Software support

Rich software support, includes open source code examples, setting and control utilities making it fast and easy adapted device.

Software support available at Intelligent-Appliance Knowledge Base

Additional information

Weight 1 kg