
- Acrel Electric Co., Ltd
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China Manufacturer with main products:Hall Sensor ,Split Core Current Transformer ,AC Energy Meter ,DC Energy Meter ,IoT Wireless Power Meter ,PV/Solar Inverter Energy Meter ,Data Center Power Meter ,Wireless Temperature Monitoring System and Sensors ,Medical IT Products ,City Utility Tunnel Moter Protector ,Electrical Insulation Safety Products ,Energy Quality Improvement
Home > Products > AC power/energy meter > kWh Accuracy Class 0.5S 3 phase electric power energy meter electrical metering equipment RS485 Port with Modbus-RTU protocol
kWh Accuracy Class 0.5S 3 phase electric power energy meter electrical metering equipment RS485 Port with Modbus-RTU protocol
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- 1
- 1000 per Month
- T/T Credit Card
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Product Description







Function | Description |
Measurement (Standard) | Three-phase AC kWh, kVarh, Active Power, Reactive Power,Quadrant Reactive Power Energy, Current, Voltage, Voltage&Current Unbalance, Power Factor, Apparant Power, Frequency, Harmonic (2~31st&THD) |
Measurement (Optional) | Temperature Measurement:4-channel (A,B,C,N) Cable Temperature Monitoring; Thermistor:NTC; Range: -40~+99℃; Accuracy:±2℃ |
Residual Current Measurement: 1-channel Residual Current Monitoring (Need to be paired with Residual Current Transformers) | |
Communication (Standard) | RS485 Port with Modbus-RTU protocol - 1 start bit,8 data bit,1 stop bit,no parity; Baud Rate 1200~38400 bps etc. Infrared Communication - Constant Baud Rate 1200 bps |
Communication (Optional) | 4G LTE - Normal Communicaiton Module Support: LTE-FDD: B1/B3/B5/B8; LTE-TDD:B34/B38/B39/B40/B41 4G LTE - Global Communication Module Support: LTE-FDD:B1/B3/B5/B7/B8/B20/B28; LTE-TDD:B38/B40/B41 |
WiFi - Support 2.4GHz or 5GHz | |
LoRaWAN | |
LoRa | |
NB-IoT | |
Display (Standard) | LCD Display and LED Indicator |
HMI (Standard) | Keypads Programming: Setting of CT/PT Ratio, Communication, Phase Wiring and etc |
Software (Standard) | Adjustment Software: Setting of Data Upload Interval, WiFi configuration (Account&Password), Server Address, Port and etc |
Alarm Function (Standard) | Undervoltage, Overvoltage, Undercurrent, Overcurrent, Underload, Overload, Communication Disconnection and etc |
I/O Function (Optional) | 4-channel or 2-channel DI (Digital Input) 2-channel DO (Digital Output) |
Parameter | Description&Value | ||
Voltage Input | Rated Voltage | 3x380~456Vac L-L or 3x660~792Vac L-L (via direct connection) 3x100~120Vac L-L (via PTs) | |
Reference Frequency | 45~65Hz | ||
Power Consumption | <0.5VA (each Phase) | ||
Current Input | Rated Current | 3x1(6)A AC (via CTs) | |
Starting Current | 1% Ib (Class 0.5); 4% Ib(Class 1) | ||
Power Consumption | <1VA (each Phase) | ||
Phase Wiring | 3P4W | 3-phase 4-wire | |
3P3W | 3-phase 3-wire | ||
Auxiliary Power Supply | Voltage Range | 85~265Vac | |
Power Consumption | <2W | ||
Measurement Performance | Standard | IEC 62053-22:2003; IEC 62053-21:2003 | |
kWh Accuracy | Class 0.5S | ||
Pulse | Width of Pulse | 80±20ms | |
Pulse Constant | 6400imp/kWh; 400imp/kWh |

Wiring Diagram

Wiring Diagram















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Acrel Electric Co., Ltd Ltd. [Stock Code : 300286. SZ] is a high-tech enterprise concentrating on research, production, sales and services. It mainly provides systemic solutions of energy efficiency management and electrical safety for users. ‘Acrel’ is equipped with the complete production lines from cloud platform software to sensors. Until now, it has more than 8000 sets systemic solutions used in China to help users to realize energy visual management ,supply energy data services and improve electrical efficiency and safety. ‘Acrel’ has maintained steady growth since its listing in 2012. The company will adhere to the concept of ‘innovation,high-efficiency,unity and honesty’ and it provides more high-quality solutions,products and service for power system users and micro-grid.
Acrel Energy Efficiency Management Systems include various cloud platforms for substation operation and maintenance, electrical safety, environmental equipment monitoring and prepaid management, and many systems and related products such as intelligent transformer and distribution monitoring system, power quality management system, building energy consumption management systems, industrial energy management and control platform, leakage fire monitoring system, fire power monitoring system, fire resistant door monitoring system, emergency lighting and evacuation instructions system, charge management system for charging piles, dynamic monitoring system for data center , intelligent lighting control system,IT distribution insulation monitoring system and so on.
In order to quickly respond to customers’ demands, the company set up branches and offices in major cities in China and provides users with high-quality product experience.
Through years of accumulation and development, the company has won wide praise in product quality and service from customers at home and abroad.
Contact Us
- Acrel Electric Co., Ltd
- ContactShelly Zhang
- Phone86-21-18702111813
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