The ADW300 Series Wireless Din-Rail Energy Meter is a flexible and space-efficient multi-circuit energy monitoring device designed for distributed power systems, smart buildings, and energy analytics platforms. With integrated wireless communication options (LoRa, NB-IoT, GPRS), as well as Modbus-RTU over RS485, the ADW300 enables real-time remote data acquisition and smart control. Its modular structure supports various CT input types and functional expansions (DI/DO, temperature monitoring), making it ideal for deployment in residential, commercial, and industrial energy metering applications.

Technical Specifications

Feature	Specification
Model	ADW300 Series
Voltage Input	3×57.7/100V or 3×220/380V
Current Input Options	Rogowski coil / 0–100A / 0–400A CT
Measurement Loops	Up to 4× three-phase or 12× single-phase circuits
Accuracy	Voltage/Current: ±0.5%, Energy: Class 1
Frequency Range	45–65Hz
Display	LCD screen with real-time parameter display
Communication Interfaces	RS485 Modbus-RTU, Infrared, LoRa, NB-IoT, GPRS
Expansion Modules	DI, DO, Temperature input (optional)
Tariff Configuration	4 tariffs, 14 time periods, 4 time zones
Pulse Output	Active energy output (open collector)
Auxiliary Power Supply	AC/DC 85–265V
Operating Temperature	-25°C to +70°C
Storage Temperature	-40°C to +85°C
Humidity (RH)	≤95%, non-condensing
Installation	35mm DIN-rail mounting

Functions

• Simultaneous monitoring of multiple three/single-phase loads
• Real-time voltage, current, frequency, power, energy data tracking
• Active and reactive energy metering with direction detection
• DI/DO for input status monitoring and output control
• Multi-rate billing with programmable schedules
• Remote data acquisition via wireless or RS485 communication
• Optional modules for temperature sensing and relay output
• Modular setup for customized deployment in complex systems

Applications

• Power distribution panels in commercial buildings
• Multi-tenant and multi-circuit metering
• Distributed energy systems
• Smart city and smart campus projects
• Remote metering in industrial automation and IoT networks

Manufacturer Information

Acrel Co., Ltd., established in 2003, is a high-tech enterprise specializing in energy efficiency management and electrical safety solutions. With a comprehensive product line ranging from cloud platform software to sensors, Acrel offers smart energy meters, power sensors, and protection devices. Their products are widely utilized across industries such as electric power, communications, rail transit, petrochemical, and construction. In 2012, Acrel was listed on the Growth Enterprise Market with the stock code 300286.SZ. The company is committed to delivering innovative and reliable energy management solutions to its global clientele.