4 channel, 16 Amp SPST Relays USB Powered and Controlled, with Voltage Suppressors

  • 4 SPST USB Relays
  • USB Powered & Controlled
  • Easy Operation
  • IA-3000 Series Compatible
  • Software Drivers & Examples
  • Small Footprint
  • DIN Rail Mount Ready
  • CE & FCC approved


The IA-2103-U is a USB Relay controller module, powered and controlled by a USB port. The IA-2103-U includes 4 SPST Power Relays, with contact rating of 16 amp both at 30VDC and 240VAC. The IA-2103-U is software compatible to the Intelligent Appliance IA-3000 Series. The software support package includes software driver, operation and configuration utilities, and open source software examples