Acrel ADW600 Multi-Circuit Metering Module: The “Smart Brain” of High-Precision Power Monitoring

New Product Overview:

The ADW600 multi-circuit power metering module is specifically designed for three-phase active energy metering in low-voltage networks. It boasts advantages such as small size, easy installation, and rich functionality. Adopting a modular design (including voltage, current, switching, temperature, and leakage current modules), the modules are connected via network cables and support multi-circuit splicing. It is suitable for multi-circuit metering scenarios on the low-voltage side, and is particularly well-suited for power system upgrades.

Product Features

The ADW600 multi-loop metering module adopts a modular design concept, with each module having a clear division of labor and working together to achieve high-precision measurement of power parameters.

Voltage Module (ADW600-U): Capable of accurately measuring and sampling various voltage specifications, adaptable to rated voltages such as 3×57.7/100V and 3×220/380V, with a voltage accuracy of up to 0.5%, providing stable and accurate voltage data for the power system.

Current Module (ADW600-I): Not only can it measure forward and reverse active energy, but it can also measure reactive energy in four quadrants. Simultaneously, it can monitor key parameters such as voltage, current, power factor, and frequency in real time, and even accurately analyze the total harmonic content and the 2nd to 31st harmonics. Under different current input specifications, such as D10 (0.03 - 0.15 (6) A) and D16 (0.8 - 2 (100) A), the active energy accuracy reaches Class B, ensuring the accuracy of energy metering.

**ADW600-K Switching Module:** Equipped with 4 passive inputs and 2 passive outputs, and a built-in DC12V power supply. The switching inputs can be used to monitor the status of external devices, such as the opening and closing of switches; the switching outputs can control external devices according to set conditions, achieving automated power control and providing strong support for intelligent power system management.

**ADW600-TL Temperature and Leakage Current Measurement Module:** Possesses powerful monitoring capabilities, capable of 12-channel temperature measurement with an accuracy of ±2℃. It comes standard with 12 temperature sensing wires, enabling real-time monitoring of equipment temperature changes and timely detection of overheating hazards. Simultaneously, it can also perform 4-channel residual current measurement with a 1mA input and 1% accuracy, effectively ensuring the leakage current safety of the power system.

Core Advantages

Modular and Flexible Deployment: Voltage, current, temperature, and switching modules can be freely combined according to scenario requirements, adapting to metering across all scenarios from small-current residential units to large industrial circuits.

Accurate Monitoring and Safety Early Warning: Harmonic analysis and temperature/leakage monitoring functions effectively prevent electrical faults and improve system reliability.

High Data Interaction Efficiency: Supports multiple communication methods such as Modbus-RTU, 4G, and WiFi, seamlessly integrating with third-party platforms to facilitate digital management.

Cost Reduction and Efficiency Enhancement: Through energy consumption analysis and equipment energy efficiency optimization, it helps customers achieve "accurate energy use, safe energy use, and economical energy use," adapting to the needs of smart cities, industrial internet, new energy, and other fields.

Wide Application and Adaptability to Diverse Scenarios

(1) Requirement for Refined Energy Management in Commercial Complexes: For the complex situation of power distribution systems in multi-format commercial complexes, accurate metering and energy consumption analysis of floors, merchants, and equipment circuits are required, along with monitoring for electrical safety hazards. Solution: The ADW600-M (4G communication) is used as the gateway, along with 15 ADW600-I (D16, circuits up to 100A) and 5 ADW600-TL temperature and leakage current monitoring modules (monitoring cable temperature and leakage current). Implementation Highlights: Through multi-circuit splicing technology, metering is achieved for over 300 low-voltage circuits, real-time collection of energy, power factor, and harmonic data, helping property management to allocate electricity costs accurately and resolve disputes over shared costs. The temperature monitoring module monitors the temperature of key nodes; if the temperature exceeds 60℃, an alarm is triggered and power is remotely cut off to prevent fires. Data is uploaded to the AcrelCloud-5000 platform via 4G using the Modbus-RTU protocol, generating energy consumption reports and trend analysis to support energy-saving strategy development.

(2) Requirements for power distribution renovation and safety monitoring in old residential areas: Old residential areas have aging power distribution lines, unbalanced loads, and significant leakage risks, requiring metering and safety upgrades without altering the existing lines. Solution: Select ADW600-I (D10, 6A low current) and ADW600-U voltage modules, and connect them to the original distribution box via network cable, with one set per household. Implementation Highlights: The modules are adaptive to three-phase four-wire/three-wire wiring, eliminating the need for large-scale modifications and shortening the construction period by 50%. Real-time monitoring of voltage deviation and current imbalance allows for timely handling of overload circuits; the leakage current module provides early warning of abnormal residual current (>30mA) to prevent grounding faults. Supports remote meter reading and abnormal alarms, enabling contactless power management.

(3) Industrial Plant Energy Efficiency and Power Quality Monitoring Scenarios: Industrial plants have many nonlinear loads and severe harmonic pollution, requiring power quality and equipment status monitoring of critical circuits. Solution: Deploy ADW600-I (D24, 400A high current) and ADW600-TL modules to monitor transformer, frequency converter, and other circuits. Implementation Highlights: Harmonic measurement (2nd–31st harmonics) identified excessive harmonics causing transformer overheating. After adding a filter, the distortion rate was reduced from 25% to 8%, extending equipment life. The temperature measurement module, combined with demand analysis, provides early warning of motor bearing failures, reducing unplanned downtime.

(4) Smart Park Distributed Energy Metering and Collaborative Control Scenario Requirements: The park contains distributed energy sources such as photovoltaics, charging piles, and energy storage, requiring unified metering and coordinated control to achieve integrated management of source-grid-load-storage. Solution: Based on the ADW600-M (WiFi gateway), combined with ADW600-I (four-quadrant reactive power metering), ADW600-K (charging pile control), and ADW600-TL (battery temperature measurement). Implementation Highlights: Monitoring the quality of photovoltaic grid-connected power; automatic start and stop of charging piles according to peak and off-peak electricity prices to save costs. Real-time monitoring of energy storage battery temperature; automatic heat dissipation when the temperature difference exceeds 5℃ to prevent thermal runaway; leakage current module ensures system safety. Data is uploaded to the platform via WiFi to optimize photovoltaic self-use and energy storage strategies.

Aaron Shi

Electrical Engineer Expert, Providing Service, consultant, product expert, professional manufacturer of energy efficiency management systemic solutions, and energy meters.