Mercury 206

Mercury 206 Mercury 206 Mercury 206 Mercury 206 Mercury 206 Mercury 206 Mercury 206 Mercury 206 Mercury 206
Product code: 206


The meters are designed for multi-tariff measurement of active and reactive electric energy and power, as well as electrical parameters in two-wired AC networks with subsequent accumulated data storage, generation of events and data transfer to the AMR/AMI system’s data collection centers.

The meters are designed for indoor operation and can be installed in the areas with additional environmental protection (installed inside premises, cabinets or boards).


The meter modifications are available with different rated and peak current, and additional functionalities which are not related to metrological perfomance.

Metrological performance

Meter accuracy class (active/reactive) 1 / 2
Rated voltage, V 230
Base/peak current, A 5 / 60
Peak current during 10 ms 30*I max
Starting current, А 0.01


GOST R 52320, GOST R 52322. State registers of Russia and CIS countries. 

Active/total power consumption in the meter voltage circuit at rated voltage, W/V*A 2.5/8
Total power consumed by each current circuit, max, V*А 0.5
Additional active/total power consumption in meter voltage circuit at rated voltage if PLC interface is available, W/V*А 1.5/24
Number of tariffs 4
Data retention during power outage, min, years 10
Calibration interval, years 16
Warranty period, years 3
Mean time between failures, min, h 220,000
Operating temperature range, °C -45 to +70
Weight, max, kg 0.6
Dimensions (LхWхH), mm 154x105x72

— The meter measures, stores, displaying on LCD and communicate information via different interfaces of active and reactive electrical energy independently by every tariff zone and cumulatively for all tariff zones for the following periods of time:

  • total cumulative active and reactive energy;
  • active energy at the beginning of the current day and 180 previous days;
  • energy at the beginning of the current month and 48 (active) and 12 (reactive) previous months.

— TOU with the option of setting individual schedule for every day of the week based on 4 tariffs, 16 time zones per day. Individual tariffs schedule is set every month.

— Measurement of electrical network parameters:

  • instantaneous values of active, reactive and total power;
  • RMS of phase currents and voltages;
  • power frequency;
  • power factor.

— Power profile with a 30-minute integration period and a 6-month storage period.

— Recording of current, voltage, active and reactive power peaks.

— Event logging.

— External RS-485 interface power supply for a system cost optimization in a block of flats.

— Wireless interfaces LoRaWAN and Zigbee for AMR/AMI system design.

— Multifunctional galvanically isolated pulse output with the load control function.

— Built-in 60A relay.

— Nonvolatile electronic seal.

— Recording of unauthorized impacts to the indelible event log.

— LCD indication of data without main power.

— No magnet sensitive elements in measuring circuits and power supply system.

— Small-size housing with DIN-rail mounting.

Table of commercially available meters modifications. Other modifications are available on request.

Modification Interfaces, relay
Mercury 206 N optical port
Mercury 206 RN optical port, RS-485
Mercury 206 PRSN optical port, RS-485 internal power supply
Mercury 206 PRNO optical port, RS-485, relay
Mercury 206 PRSNO optical port, RS-485 internal power supply, relay
Mercury 206 PLNO optical port, PLС-I, relay
Mercury 206 PNF04 optical port, RF (LoRa)
Mercury 206 PNOF04 optical port, RF (LoRa), relay

Meter modification code structure:

Mercury 206 PR(L) S N O Fx

Р – extended program functions; power profile, events logs,
R – interface RS-485 with external power supply (L – PLC-I modem),
S – internal power supply for the interface RS-485,
N – electronic seal,
О – built-in load control relay,
Fx – radio modem-х (LoRaWAN, Zigbee) etc.


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