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Product at a glance

Premier 550 is a new generation three-phase instrument transformer- operated electricity meter, offering enriched firmware functionalities with data security that serves multiple utility applications. It offers interoperability over IEC DLMS to ensure compatibility with interoperable head-end systems. It is developed on an intelligent firmware platform, empowering utilities in key business processes optimisation. Premier 550 is a robust and reliable product suitable for the intended applications domain. It offers flexibility in AMR solutions through terminal modems or integrated communication module to customers. It facilitates by keeping of billing energies, TOU registers, interval data and events for better procurement planning, network maintenance and settlement.


  • Industrial and commercial consumer tariff metering
  • Distribution transformer metering
  • MV feeder metering
  • Metering for Renewable generation


  • High precision metering for accurate billing and settlement
  • Common asset for HV3, HV4 network connections
  • Extensive data recording for analysis and network asset planning
  • Minimal integration cost through interoperable interfaces
  • Facilitate utilities to monitor power supply quality
  • Facilitates energy accounting
  • Reduced operational costs (low ownership costs)
  • Designed to serve long life in the field
  • Caters to a wide range of TSOs / DSOs requirements / Utility requirements


  • Multi-level data encryption / password protection security
  • 15-month storage of energy and instantaneous parameters (4 channels, 30-minute interval)
  • Supply quality monitoring with voltage sag, swell, voltage unbalance and interruption event recording
  • %THD (Total Harmonic Distortion) and individual order harmonics measurement
  • RS 232 port to place other make of terminal modem
  • Two fixed pulse outputs and two configurable pulse input / output
  • Transformer / Line loss adjustment (copper and iron losses)
  • Dynamic error compensation of external/field CTs/VTs
  • Remote firmware upgrade facility
  • Reliable and robust product design
  • Data delivery through a terminal modem or integrated communication module (4G / 3G / 2G)
  • Critical events like meter cover and terminal cover open detection
  • Display navigation through Touchpad
  • Intuitive and user-friendly LCD display
  • Meter data collection through an optical port for no-WAN nodes
  • Meter display and local meter reading without mains power

Technical specifications

Electrical LV HV
Connection type CT-operated CT / VT-operated
Wiring configuration 3-phase 4-wire 3-phase 3-wire, 3-phase 4-wire
Voltage range 220…240V +/- 30% (L-N) 57.7…63.5V (L-N) or 100…120V+/-30% (L-L)
Applicable to both LV and HV
Current range 1 – 10A (Configurable)*
Accuracy LV: Class 0.5s / Class C, HV: Class 0.2s / Class 0.5s / Class C (MID)
Mains frequency 50 Hz ± 5% or 60Hz ± 2%
Burden As per standards
Standards IEC 62052-11: 2020, IEC 62053-22: 2020, IEC 62053-24: 2020, IEC 62052-31,
IEC 62059-31-1, IEC 62056, EN 50470-1, EN 50470-3, BS EN 50470-1, BS EN 50470-3
Dimensions (W x H x D) and weigh Terminal modem variant: 179 x 252 x 70 mm (approx.), 1.1 ± 0.2 Kg (without terminal modem)
Integrated comms variant: 285 x 179 x 70 mm (approx.), 1.35 ± 0.2 Kg
Enclosure Engineering plastic
 Sealing Break to open enclosure, sealing provision meter cover, optical port, terminal cover,communication module cover (in integrated comms variant)
Mounting Wall or panel
Ingress protection IP 54 (Indoor application)
Temperature -10° C to +55° C (Operation) and -25° C to +70° C (Storage)
Humidity 95% non-condensing RH
Input/Output configuration
Pulse Input / Output 2 fixed pulse output and 2 configurable pulse Input / Output (240V AC / DC at 100mA)
  • Energy channel – configurability to Import / Export / Absolute / Net / Gross fixed and rolling demand measurements
  • Phase wise energy and instantaneous parameters measurement
  • Terminal cover open, front cover open, communication module open detection and magnet detection
  • Two metrology LEDs for accuracy testing of different energy types
  • Configurable TOU and rate registers
  • Seasonal tariff and DST (Daylight saving time) support
  • Programmable special daysConfigurable demand and survey integration period
  • Events logging on tampers and alert information to back end system

*For more details, contact your nearest sales office

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