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Wenzhou Legy Electric Meter Technology Co., Ltd. has been a dedicated China manufacturer of electronic energy meters since 2002, with a factory in Wenzhou that produces Three Phase DIN Rail Meters compliant with IEC62053-22 and CE standards. As a reliable supplier, the company offers end-to-end export services, including commodity inspection, certificates of origin, and logistics support, ensuring seamless customs clearance for global clients. These meters are engineered for complex three-phase power systems in industrial, commercial, and renewable energy applications, enabling precise energy auditing and grid stability optimization. With over two decades of industrial experience, the company provides customized smart metering solutions to the global market, ensuring reliable performance and seamless integration.
A Three Phase DIN Rail Meter is an advanced electronic measurement instrument designed for three-phase AC power systems, mounted on a standard 35mm DIN rail. It integrates high-precision metrology chips and digital signal processing to measure not only active energy but also reactive energy, apparent energy, and power quality parameters such as harmonics and unbalance. Belonging to the category of multi-functional smart metering devices, it is essential for industrial power quality analysis, commercial sub-metering, and renewable energy grid integration, surpassing traditional three-phase meters with comprehensive data acquisition and intelligent control features.
Three Phase DIN Rail Meter supports 2nd to 31st harmonic measurement and THD analysis, with real-time three-phase unbalance monitoring to diagnose industrial power system anomalies.
Available in 4P (72mm) and 6P (108mm) widths, matching standard three-phase circuit breakers; snap-on 35mm DIN rail design enables tool-free installation in compact distribution cabinets.
Supports direct connection up to 80A for small commercial loads, and external CT connection for high-current industrial circuits, with auto-recognition of CT ratios to simplify wiring.
Standard RS-485 supports Modbus RTU and DL/T645 protocols; optional 4G/NB-IoT modules enable cloud-based remote monitoring and integration with smart grid platforms.
Three Phase DIN Rail Meter, real-time harmonic and unbalance monitoring helps identify power quality issues, prevent equipment damage, and optimize industrial power system performance.
Built-in relay enables remote tripping/closing for pre-paid metering, overload protection, and demand-side management without external devices.
4P/6P width matches standard circuit breakers and contactors, allowing flexible panel layout and easy expansion for three-phase distribution systems.
0.5S accuracy class meets billing and energy auditing requirements for industrial and commercial applications, ensuring fair and accurate energy measurement.
Conformal-coated PCB and flame-retardant housing ensure reliable operation in high-temperature, humid, or dusty industrial environments.
Three Phase DIN Rail Meter monitors three-phase production lines and heavy machinery for energy efficiency analysis and demand-side management.
Track power quality and energy consumption of three-phase UPS and server racks to ensure operational stability.
Deploy in tenant panels for accurate billing and energy cost allocation across multiple commercial units.
Monitor three-phase HVAC and elevator systems for energy auditing and sustainability reporting.
Measure three-phase inverter output and grid connection power for net metering and performance optimization.
Monitor three-phase fast chargers for accurate billing and load balancing in commercial parking facilities.
A: Yes, it supports harmonic analysis (2-31st order), THD monitoring, and three-phase unbalance detection, helping identify power quality issues in industrial and commercial systems.
A: Direct connection supports up to 80A for small loads; CT connection is for high-current circuits, with auto-recognition of CT ratios to simplify installation and ensure accurate measurement.
A: Yes, standard RS-485 supports Modbus RTU/DL/T645; optional 4G/NB-IoT modules enable cloud integration for remote monitoring and smart grid applications.
A: Yes, 4P/6P modular width matches standard three-phase breakers; snap-on DIN rail design saves space and enables tool-free installation in tight cabinets.
A: Yes, optional built-in relay enables remote tripping/closing for pre-paid metering, overload protection, and demand-side management without external devices.
Beyond manufacturing, we act as a technical partner for global energy digitization. Our Three Phase DIN Rail Meters are engineered with open API architectures and modular communication slots, enabling seamless integration with third-party energy management software, IoT platforms, and building automation systems. We provide comprehensive technical documentation, SDKs, and joint development support to help clients accelerate their smart metering deployments and reduce integration costs.
We also offer lifecycle services including remote firmware updates, predictive maintenance analytics, and customized training programs for engineering teams. By combining reliable hardware with proactive technical support, we help clients maximize the long-term value of their metering infrastructure and adapt to evolving energy management needs.
Looking ahead, we are committed to co-creating next-generation metering solutions with global partners. Whether you need customized communication protocols, specialized environmental adaptations, or integrated load control features, our R&D team is ready to collaborate and deliver tailored solutions that drive your energy efficiency and sustainability goals forward.
