DPM-4C – Electrical Measurement Unit

The DPM-4C electrical measurement unit, designed for DIN rail mounting, is intended for measurement in 400V three-phase networks. Current measurement is performed via current transformers (CTs).

  • Indirect current measurement via CTs (/1A or /5A).
  • Bi-directional energy measurement
  • Accuracy: Class 1 according to IEC 62053-21
  • LCD display mode
  • RS485 interface, Modbus-RTU Protocol
  • Pulse output
Standards:
  • IEC 62053-21
Certifications

The DPM-4C electrical measurement unit, designed for DIN rail mounting, is intended for measurement in three-phase networks (3L+N)  up to 400V. It allows indirect current measurement via measurement current transformers (CTs) of x/1A or x/5A.

It  features a pulse output for energy counting and  an RS485 Modbus communication port.

The DPM-4C electrical measurement unit is designed and manufactured to address all electricity consumption scenarios, employing an advanced energy measurement method (IC) and utilizing advanced digital sampling and SMT technology. It is designed with a modular structure, featuring a compact size, and offering convenient installation and reliable operation.

Measurement

  • Voltage
  • Current
  • Energy bidirectional +/- kWh
  • Power factor
  • Frequency

Applications

  • Sub-metering

  • Energy management

Technical characteristics

Nominal voltage

  • 3×230/400V

Frequency

  • 45Hz~65Hz

Voltage range

  • 0.8Un~1.2Un

Startup current

  • Input via CT : 0.002lb

Current measurement inputs

  • on CT x/1A or x/5A

Energy pulse

  • 1 output, Pulse width 80 (+/-20%)

Digital input

  • Active digital input, Input range 0~220V AC. >150V AC closed. <70V AC opened

RTC error

  • <= 0.5s/jour

Communication (Modbus-RTU)

  • RS485, Modbus-RTU, 2 cables, Up to 9600bps

Width

  • 72mm (4 modules)

Installation and Connection

Dimensions

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