Delta's Din-rail Multifunction Power Meter (CT included) DPM-D520I adopts a power load capacity of up to 63A, and is applicable to equipment as well as sectors where installation space is limited.

  • Directly measures current up to 63A. Active energy accuracy up to 0.5%
  • Supports Modbus RTU protocol. Easy to apply with SCADA and EMS
  • Capable of measuring total harmonic distortion (THD) and individual harmonics up to the 31st order
  • Data log and Max. / Min. records

Product Introduction

Features & Benefits

Parameter Grouping Function

  • All electricity data can be combined as a parameter group that allows access for master controllers (including PLCs, SCADA and EMS). This function reduces reading time as well as enhances real-time data accessibility of the master controllers
  • Combines several discontinuous register addresses to one continuous address, reducing commands to achieve high-efficiency data acquisition of the master controllers (SCADA and PLC)

Energy Measurement and Alarm History

  • The DPMSoft management software monitors real-time electricity data, and can easily export all history logs
  • Offers energy history logs saved for up to 2 months, and with up to 17 electricity parameters based on various time intervals (example: 17 electricity parameters, 5 minute time intervals for 2 months). Built-in 29 alarm events with up to 500 alert history logs

Auto Meter Function

  • Automatically settles monthly energy consumption (with built-in real-time calendar)
  • Adopts a built-in date selected register that records active / reactive energy within two individual month intervals. Matched with remote communication control or energy management systems, the DPM-C520I can analyze monthly active / reactive energy, multi-rate meter calculation, and conditions of energy usage


  • Automatic measurement & calculation of power consumption during a specific time period
  • Multiple interval groups setting to measure power consumption at different periods of time



  • The DPM-D520I is suitable for: industrial machines, communication base stations, IIoT equipment, and areas where CT is difficult to install with current lower than 63A