Commercial 3-Phase / 3 x 1-Phase Energy Meter


The ZR-HM3 is an electricity meter designed to measure the electrical consumption in civil, commercial and industrial applications. It can monitor voltage, current, power and energy from two three-phase lines or from six single-phase lines. Thanks to the external current transformer it can measure the phase true current up to 100A, the real time power up to 50 kW and has an energy counter. All the functions are activated by simple ModBus commands issued to the Gateway that transforms those commands in wireless commands. The device is continuously powered by 230 Vac; therefore it can also act as a repeater or a parent device for battery powered sensors.

Delivery in approximately 2-5 working days (subject to availability)



Key features

  • Real Time three phase Electricity Active Power or six single phase Electricity Active Power
  • Measurement up to 100A by phase with external CT included
  • ModBus profile on ZigBee platform
  • Supply 230 Vac
  • Star configuration only
  • External antenna
  • Diagnostic led
  • Din rail mounted
  • Precision class 1

Product Specification

General Characteristic

  • ZigBee device
  • Compatible IEEE 802.15.4
  • ModBus RTU
  • Device address settable via internal dip-switch

RF Characteristics

  • Frequency: 2405MHz ÷ 2480 MHz
  • Nominal Transmission Power: 1mW (10 dBm)
  • Reception Sensitivity: 103 dBm
  • Extern Antenna Gain: 5.5 dB
  • Coverage Outdoor/Indoor: 200m/50m

Supply: 230 Vac

Connections: DIN rail, available in 6 DIN module size 105 x 110 x 60 mm

Environments Parameters

  • Operating Temperature: 0°C ÷ +50°C; <80% U.R. not condensing
  • Storage Temperature: -20 ÷ +70°C; <80% U.R. not condensing
  • Degree of protection: IP55


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