Multi-channel smart energy meter for DIN rail mounting | 6 tariffs | powered from the main meter | Modbus RS485 | ME131S

Technical Specifications

Type: Multichannel smart energy meter
Model: ME131S
Mounting: DIN rail
Communication: Modbus RS485
Power supply: From main meter ME131M
Tariffs: 6 tariffs
Harmonics: Up to 50th order
Recording: No data logger
Relay output: 1 electromagnetic relay
Isolation: Optocoupler isolation, up to 5 kVrms
Current sensor support: Rogowski coils; 333 mV CT current transformers; VT support up to 500 kV
Available current ranges (depending on sensor): 10 A / 100 A / 600 A / 1000 A / 3000 A / 6000 A
Coil transfer ratios: 50 mV/kA @ 50 Hz; 85 mV/kA @ 50 Hz; 100 mV/kA @ 50 Hz or 333 mV/kA (0–634 mV AC)
Accuracy class: 0.5S

Functions

Multichannel current measurement – allows monitoring multiple electrical circuits with a single device.
Voltage measurement – continuously measures network voltage on all phases.
Power calculation – calculates active, reactive, and apparent power.
Energy metering – records consumed electrical energy (kWh).
Harmonic analysis – detects power quality distortions up to the 50th harmonic.
Power factor (cos φ) monitoring – helps evaluate energy efficiency.
Unbalance analysis – detects uneven phase loading.
Modbus RS485 communication – data transmission to BMS, PLC, or SCADA systems.

Applications

For electricians: Quick DIN rail installation, safe current measurement without disconnecting conductors, ideal for upgrading existing distribution panels.
For engineers / system integrators: Reliable data integration via Modbus RS485, wide compatibility with Rogowski coils, suitable for energy monitoring and BMS projects.
For commercial and industrial facilities: Suitable for factories, offices, shopping centers; load analysis, energy optimization, and multi-circuit monitoring with one device.

Advantages

Supports very high currents (up to 6000 A)
Compatible with Rogowski coils and 333 mV CTs
High accuracy class (0.5S)
Industrial Modbus RS485 communication
Compact DIN rail design
Ideal for energy analysis and optimization

Limitations

Rogowski coil or CT not included – must be selected separately
No integrated data logger
Powered via main ME131M meter