- Measuring and monitoring DC power systems
- Single channel DC energy meter with single line 7 digit LCD display
- Accuracy Class 0.5
- Designed to shunt up to 150 mV
- On-site programmable - Voltage input range (0-1000 V d.c.) and Shunt rating i.e. shunt primary current (0-20 kA) and secondary output (50-150mV)
- Multi-parameters measurement ( voltage, current, power, kWh, etc.)
- Bi-directional measurement ( import and export kWh)
- RS-485 setting configurable by keys or via Modbus
- Pulse output for energy monitoring
- Shunt connection support both positive and negative types
- Two ranges of Auxiliary Supply
- Demand measurement
- Push button for parameter scrolling
- Auto scaling and Auto scrolling
- User configurable and editable password
- Applicable Energy Std. IEC 62053-41:2021
- Isolation between voltage and current channel
- DIN rail mounted
Single channel DC energy meter
NR21H
The NR21H is an advanced DC energy meter designed for modern power and industrial applications where accuracy, reliability and effective energy flow monitoring are essential.
With its bidirectional energy measurement capability, the NR21H is ideally suited for electric vehicle charging stations, photovoltaic installations, telecommunications infrastructure and industrial DC power systems.
The NR21H supports current measurement up to 2000 A using an external shunt, providing accuracy class 1 in accordance with IEC 62053-41:2021.
Equipped with an RS-485 interface supporting the Modbus RTU protocol, a pulse output and a backlit LCD display, the meter enables convenient data reading and seamless integration into energy monitoring systems.
Its compact design and DIN rail mounting ensure easy installation in electrical distribution boards and control cabinets.
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