Rogowski panel power analyzer | voltage and current measurement | 12–24 V DC | 3-in-1 current input | RJ45 | LCD display | 6 tariffs | MODBUS RS485 | ME337NR3

Technical Specifications

Type: Panel-mounted power analyzer
Model: ME337ND2
Installation: Fixed (panel-mounted)
Communication: MODBUS RS485
Power supply: 12 V or 24 V DC; auxiliary range: 5–30 V DC
Harmonic analysis: up to the 50th (real-time display)
Tariffs: 6
Alarms: yes
Data logging: no

Current measurement – 3-in-1 solution:
Three-phase current input via a single RJ45 connector

Supported current sensors:
Rogowski coils; 333 mV current transformers (CT)
Connections: STP + RJ45

Configurable current ranges:
10 A / 100 A / 500 A / 1000 A / 3000 A / 6000 A (software configurable)

Current signal coefficients:
50 mV/kA @50 Hz; 85 mV/kA @50 Hz; 333 mV/kA (0–634 mV AC RMS)

Current measurement accuracy: ±0.1 % (depending on sensor)

Measured parameters:
Current; Voltage; Active, reactive and apparent power; Power factor; Electrical energy; Phase angle and imbalance; Load; Harmonic values; Phasor diagram

Inputs / outputs:
1 relay output; 1 digital input; alarm function (based on set limits)

Functions

Voltage and current measurement – real-time monitoring of network parameters
Power and energy analysis – evaluation of active and reactive power and consumption
Harmonic analysis (up to the 50th) – detection of power quality distortions
Phasor and imbalance analysis – assessment of phase loading and balance
Alarms and relay output – alerts when preset thresholds are exceeded
MODBUS RS485 communication – integration with BMS / SCADA systems

Applications

For engineers / energy specialists: Power and harmonic analysis, phase imbalance and load evaluation, integration with BMS / SCADA via MODBUS RS485, suitable for solar, battery-based and DC-powered systems
For industrial and commercial facilities: Continuous power network monitoring, energy consumption control, alarm signaling in case of deviations
For electricians: Quick voltage, current and load checks in panels, easy integration into existing switchboards, operation with Rogowski coils without disconnecting the line, convenient use in 12 V / 24 V DC systems

Advantages

3-in-1 current input via RJ45
12–24 V DC power supply
Harmonic analysis up to the 50th
Wide current range up to 6000 A
MODBUS RS485 integration
High measurement accuracy

Limitations

No internal data logging
Rogowski coils / CTs not included
Designed for fixed (panel-mounted) installation