Electricity Meters
LoRa Single-phase DIN Rail Energy Meter
The LoRa Single-phase DIN Rail Energy Meter measures single-phase AC voltage, current, power and bidirectional energy consumption. Its two RS-485 interfaces provide a main port for data transmission and a secondary port for connecting up to 16 compatible devices.
LoRaWAN wireless communication enables data transmission to servers supporting MODBUS-RTU. With low power consumption and cost-effective operation, the meter is suited to energy-saving retrofits, power systems and industrial applications for remote energy monitoring.
Enquire About This Product01 / PRODUCT FEATURES
Product at a glance
Comprehensive AC Data Acquisition
- Measures single-phase AC voltage, current, power and energy.
High-accuracy RMS Measurement
- Uses a dedicated measurement chip and RMS measurement for high accuracy.
Built-in LoRaWAN Communication
- Built-in LoRaWAN module and two RS-485 communication interfaces.
Standard Modbus Compatibility
- Uses standard MODBUS-RTU for compatibility and convenient programming.
Wide Operating Voltage and Reverse-connection Protection
- AC80-265V operating voltage with reverse-connection protection; reverse power connection does not damage the module.
High Isolation Withstand Voltage
- AC withstand voltage up to 2000V.
ESD-protected RS-485
- RS-485 communication interfaces include ESD protection circuitry.
Low Operating Power
- Typical power consumption ≤2W.
02 / SPECIFICATIONS
Technical specifications
| Description | Value |
|---|---|
| AC Input Voltage Options | 100V / 220V |
| Current Range and CT Options | 50A / 100A / 250A; optional external split-core CT models. |
| Signal Processing | Dedicated measurement chip with 24-bit AD sampling. |
| Overload Capacity | 1.2 times range continuously; no damage within 5 times current and 1.2 times voltage range for transients <20ms. |
| Input Impedance | Voltage channel >1 kΩ/V; current channel ≤100mΩ. |
| Wireless Communication | LoRaWAN |
| RS-485 Interfaces | Two RS-485 interfaces |
| Communication Protocol | MODBUS-RTU |
| Serial Data Format | n,8,1 |
| RS-485 Baud Rate | Selectable 1200 / 2400 / 4800 / 9600bps; default 9600bps. |
| Metering Output Data | Voltage, current, power, energy, power factor and frequency; details are defined in the Modbus data register list. |
| Measurement Accuracy | Voltage and current: ±1.0%; active energy: Class 1. |
| Interface Isolation | RS-485, supply power, voltage input and current input are mutually isolated; isolation withstand voltage 2000VDC. |
| Supply Voltage Options | 100V / 220V; voltage line 100-220V. With AC220V supply, peak voltage must not exceed 265V. |
| Typical Power Consumption | ≤2W |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Altitude | 0-3000m |
| Temperature Drift | ≤100ppm/°C |
| DIN Rail Installation | 2P enclosure, 35mm DIN rail |
| Secondary RS-485 Device Capacity | Up to 16 compatible devices. |
LET’S TALK ABOUT YOUR REQUIREMENTS
Interested in LoRa Single-phase DIN Rail Energy Meter?
Contact our team for product availability, specifications and technical documentation.