KPM31 Wireless Single Phase DIN Rail OEM RS485 Prepaid LoRaWAN/WIFI/4G Energy Meter
⚙️ Modbus-RTU / MQTT
🎯 Class 1.0
- Optional Wireless RS485 WIFI 4G LORAWAN Communication
- Prepaid function for meter local control，There is also a postpaid function
- Bidirectional Energy Monitoring
- Direct current input with a rated current range of 0.2-80 A.
- 35mm standard rail mounting, aesthetically pleasing and easy to install
- Offline data storage function for wireless communications.
- Time of use energy statistics, up to 5 tariffs.
- 12 month historical power statistics function.
Compere Advanced Smart Energy Solutions, Your Partner For Industrial Energy Efficiency
Empowering global energy management with reliable, real-time, and intelligent data.
Features
KPM31 Single Phase Din Rail Prepaid 4G Energy Meterr
KPM31 single phase Din Rail rs485 4G WiFi LoraWAN Prepaid Energy Meter has a rated current of 80A, uses a DSP chip, and features a built-in self-locking relay. It supports energy consumption data network disconnection and reconnection, bidirectional metering, remote control and meter reading, and provides flexible communication options including 4G, WiFi, lorawan and RS485.
Functions of KPM31 Single phase DIN rail prepaid 4G energy meter
- Single phase din rail prepaid 4g energy meter
- Full electrical parameter measurement:
- U, I, F, PF, P;
- 4 quadrant energy, prepaid kwh, etc.
- High accuracy:
- Voltage accuracy Class 0.2
- Current accuracy Class 0.2
- Power accuracy Class 0.5
- Active energy Class 0.5
- Reactive energy accuracy Class 2.0
Record function:
- 12 month energy consumption frozen data;
- Meter working time, load time statics.
- Prepaid power left value.
- Other features:
- Communication：WIFI/4G based on MQTT; RS485 based on MODBUS RTU
- Installation method：DIN rail 35MM
- Remote control on/off.
- Automatic power off after prepaid power used out.
KPM31 Single Phase Din Rail Prepaid 4G Energy Meter Model
Specification Of KPM31 Single Phase Din Rail Prepaid 4G Energy Meter
| Input voltage | Rated voltage | AC 110V/220V |
|---|---|---|
| Overall power consumption | <2VA | |
| Frequency range | 45~65Hz | |
| Input current | Rated current | 0.2-80A |
| Frequency range | 45~65Hz | |
| Measurement accuracy | Voltage | ±0.2%(0.01V) |
| Current | ±0.2%(0.01A) | |
| Active power | ±0.5%(0.1W) | |
| Reactive power | ±2.0%(0.1var) | |
| Active energy | ±0.5%(0.1kWh) | |
| Reactive energy | ±2.0%(0.1kvarh) | |
| Power factor | ±0.5%(0.001) | |
| Frequency | ±0.02Hz(0.01Hz) | |
| Clock | Clock accuracy | <0.5S/D |
| Communication | Communication interface | RS485 / WIFI / 4G |
| Communication protocol | Modbus-RTU,1200~9600bps | |
| Electrical insulation | Power frequency withstand voltage | AC2kV/min~1mA Input-output-power source |
| Insulation resistance | >50MΩ | |
| Impact voltage | 5kV (Peak),1.2/50us | |
| Working environment | Operating temperature | -10℃ ~ +55℃ |
| Relative humidity | 5%~95% No condensation | |
| Storage temperature | -20℃ ~ +75℃ | |
| Altitude | No more than 3000m | |
| Electromagnetic Compatibility | Surge (impact) immunity | IEC61000-4-5, Level4 |
| Electrical fast burst immunity | IEC61000-4-4, Level4 | |
| Electrostatic discharge immunity | IEC61000-4-2, Level4 | |
| Power frequency magnetic field immunity | IEC61000-4-8, Level4 |
Appication Of KPM31 Single Phase Din Rail Prepaid 4G Energy Meter
KPM31 Single Phase Din Rail Prepaid 4G Energy Meter Download
Smart Prepaid Solutions with KPM31 Single Phase Energy Meter
Q1: How does the KPM31 Single Phase Prepaid Energy Meter achieve remote prepayment without a physical IC card?
A: The KPM31 Single Phase Prepaid Energy Meter utilizes a modern non-card prepayment architecture. Unlike traditional IC card meters, the KPM31 connects to a cloud-based management platform via its built-in RS485 port or optional 4G/WiFi/LoRaWAN modules. Users can recharge their balance remotely through a web portal or mobile app. The meter automatically executes a remote trip (internal relay) if the credit reaches zero, ensuring seamless and contactless utility management for landlords and property managers.
Q2: Is the KPM31 Single Phase Prepaid Energy Meter compact enough for residential or apartment sub-metering?
A: Yes. The KPM31 Single Phase Prepaid Energy Meter features a standard DIN-rail (35mm) mounting design, making it extremely compact for installation in narrow distribution boxes. It is an ideal solution for apartments, dormitories, and shopping malls where space is limited but high-precision (Class 1.0 or 0.5S) monitoring of single-phase circuits is required.
Q3: What safety features are integrated into the KPM31 Single Phase Prepaid Energy Meter for high-load industrial or commercial environments?
A: Safety is a core priority for the KPM31 Single Phase Prepaid Energy Meter. It includes built-in overload protection and over-voltage/under-voltage alarms. Furthermore, the internal high-capacity magnetic latching relay is designed to handle frequent switching without degradation, providing a reliable “last line of defense” for electrical safety in prepaid rental scenarios.
Discover Our Mission,
Vision, and Values
Direct Expert Contact
We provide integrated energy solutions:
✅Online Monitoring & Analysis
✅ Production Management
✅ 7*24h Professional Support
Get a Free Quote
- Most Popular
