3-Phase Monitoring Relay with NFC Configuration


DPD Series three-phase monitoring relay with NFC Configuration provides the utmost flexibility in very compact dimensions and offers a wide range of features in a mere 22.5-mm product width.


It provides protection against phase reversal, phase loss and if the phase asymmetry, voltage, or frequency measurements are not within the user-configured settings and/or thresholds.


Settings can easily be modified through an Android App via a smartphone/tablet or via a USB NFC Reader/Writer (part number ACR1252U) connected to a computer. Under and over threshold settings can be set, as well as hysteresis and time delays.



Main technical features include:

  •     3-phase voltage and frequency monitoring relay
  •     Nominal measurement range from 177-552 v ac L-L and 102-318 v ac L-N
  •     Star or Delta mains
  •     NFC configuration
  •     Adjustable set-points, hysteresis, delays, AND/OR logic
  •     Three diagnostic LEDs
  •     Operating frequency from 45 to 440 Hz
  •     Two independent SPDT 8-amp outputs
  •     cULus, CCC approved, and CE marked

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