· Operating voltage range: 3×230/400V (±20%)
· Operating current: 5(100)A
· Supports RS485 & LoRaWAN communication Modbus protocol
· Supports bidirectional metering (forward and reverse)
· Supports alarm functions (e.g., over-voltage, over-current, terminal cover opening) & event logging
The EM514012 is a multifunctional three-phase four-wire DIN rail smart energy meter featuring LoRaWAN remote communication and integrated latching relay control.
It enables utilities, energy service providers, facility managers, and system integrators to remotely monitor electricity consumption, perform remote disconnect/reconnect operations, implement prepaid billing systems, and optimize energy management through real-time data collection.
Supporting both LoRaWAN and RS485 Modbus communication, the meter seamlessly integrates into AMI, smart grid, industrial automation, and building energy management systems.
Using LoRaWAN wireless communication, the meter enables long-range, low-power remote data transmission without complex wiring infrastructure.
Real-time energy monitoring
Automatic data reporting
Reduced manual meter reading costs
Suitable for large-scale deployments
Supports IoT smart metering platforms
An integrated latching relay allows authorized operators to remotely disconnect or reconnect electrical loads.
Tenant management
Utility prepaid services
Load control systems
Energy-saving programs
Remote maintenance
The meter supports multiple billing methods to meet various market requirements.
Postpaid metering
Energy prepaid mode
Monetary prepaid mode
Emergency credit support
Low balance alarm
Designed for modern energy pricing models.
4 tariff rates
8 time periods
Weekend tariff settings
Holiday tariff settings
Flexible electricity pricing
Monitor key electrical parameters in real time.
Active Energy (kWh)
Reactive Energy (kvarh)
Voltage
Current
Active Power
Reactive Power
Apparent Power
Frequency
Power Factor
Demand
Built-in protection features improve operational safety.
Overcurrent alarm
Overvoltage alarm
Frequency deviation alarm
Low credit warning
Low energy warning
Cover tamper detection
Event logging
Automatic overload trip
Configurable recovery time
Relay auto-reconnection
Remote event reporting
EU863-870 MHz
Long-range wireless communication
Remote monitoring and control
Modbus RTU Protocol
Up to 115200 bps
Local configuration
Firmware upgrade support
| Parameter | Specification |
|---|---|
| Voltage | 3×230/400V AC |
| Current | 0.25-5(100)A |
| Frequency | 50/60Hz |
| Accuracy | Class B |
| Communication | LoRaWAN + RS485 |
| Protocol | Modbus RTU |
| Relay | Built-in Latching Relay |
| Display | LCD |
| Installation | 35mm DIN Rail |
| Operating Temperature | -40°C to +70°C |
| Protection Level | IP51 |
| Standard | EN50470-3 |
Monitor tenant electricity usage and enable remote energy management.
Reduce operating costs through intelligent power monitoring and tariff optimization.
Track energy consumption and manage electrical loads remotely.
Support AMI infrastructure and large-scale remote meter reading projects.
Integrate with solar, battery storage, and microgrid monitoring systems.

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