DNx-DIO-463 – Guardian™ 12-Channel Solid State Relay Output Board

Guardian™ 12-Channel Solid State Relay Output Board


The DNx-DIO-463 (Guardian series) are 12-channel, solid-state relay boards. Relays are in a Form A (SPST) configuration and are rated for continuous operation at 2A at 51 VDC, Solid state contacts ensure many more operations than electromechanical relays and are also silent.



  • 2 A continuous output current at 48 VDC or 35 VAC
  • Fully solid state contacts
  • 150 milliohm on resistance
  • Output throughput rate of 125 updates per second

Guardian Series diagnostics

  • Programmable overcurrent protection (50 mA to 2 A)
  • Programmable overcurrent duration limits
  • Monitors each channel’s output voltage and current allowing Automatic detection of shorts/open and other system failures

The DIO-463 is part of UEI’s Guardian series. It not only controls the relay outputs, it also provides a powerful output monitoring capability. An on-board A/D converter allows you to monitor DC output voltages (relative to the common terminal) and DC output current. This allows the application to detect short and open circuits as well as other ““suspicious behavior”. The monitoring capability is also a powerful diagnostic tool that allows a repair technician to quickly and accurately identify damaged or mis-wired channels.

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