The ADW Series Multi-Circuit Energy Meter is a high-accuracy, compact energy monitoring device designed for panel-level power distribution systems. Supporting both direct-connected and CT-based current measurement, the ADW meter offers real-time data on voltage, current, power, energy, and demand across multiple circuits. Its RS485 Modbus interface allows seamless integration into energy management platforms, while the modular design supports multiple installations for building automation, tenant metering, and industrial sub-metering systems.

Technical Specifications

Feature	Specification
Model	ADW Series
Voltage Input	3×220/380V AC
Current Measurement
CT input (0–100A, 0–400A via Rogowski coils)
Direct input (model-specific)
Number of Loops	Varies by model (up to 4× three-phase or 12× single-phase circuits)
Frequency	50Hz (±2%)
Accuracy Class	Voltage/Current: ±0.5%, Energy: Class 1
Display	LCD with status indication and navigation keys
Pulse Output	Active energy: 1 output (open collector)
Communication Interface	RS485
Communication Protocol	Modbus-RTU
Digital Inputs/Outputs	Optional (for switching, alarm, or control functions)
Auxiliary Power Supply	AC/DC 85–265V
Power Consumption	≤10VA
Operating Temperature	-25°C to +70°C
Storage Temperature	-40°C to +85°C
Humidity	≤95% RH (non-condensing)
Installation	35mm DIN-rail mounting

Functions

• Real-time measurement of voltage, current, power, and energy
• Active/reactive/apparent power and power factor tracking
• Forward and reverse energy accumulation
• Multi-rate billing support with programmable tariff intervals
• RS485 interface for data collection and integration with EMS/SCADA
• Optional DI/DO modules for alarm or event-based control
• Suitable for retrofitting in limited-space distribution panels

Applications

• Building energy management
• Multi-tenant metering (apartments, malls, offices)
• Factory or industrial sub-load monitoring
• Panelboard-level load analysis
• Retrofit energy tracking in smart infrastructure

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.