Smart Metering Circuit Breaker

HXM3E-250

An intelligent terminal that integrates communication, metering, protection, control, and edge computing into a single unit.

Product Description

The smart metering circuit breaker is suitable for distribution protection in AC 50Hz/60Hz networks with a rated operational current from 100A to 250A, a rated insulation voltage of 1000V, and a rated operational voltage of AC 380V/400V/415V. The circuit breaker is equipped with long time-delay, short short-circuit time-delay, instantaneous, over/under-voltage, phase-failure, and temperature protection functions, serving to safeguard lines and power supply equipment. It possesses the capability to feedback information such as current, voltage, power, energy, and lifespan of the product to terminal devices with meter-grade accuracy, which is used for the detection and monitoring of the load side, lowering power grid O&M costs and providing necessary data for future energy efficiency systems. This product supports DL/T 645 and DL/T 698.45 protocols

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Product Advantages

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High-Precision Measurement and Edge Computing

● Utilizing a Class 0.5S high-precision metering module, its voltage and current detection accuracy reaches 0.5%, supporting 1-minute high-frequency data acquisition. Equipped with a built-in edge computing unit, it can complete localized processing such as line loss analysis and fault location in real time.

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Multi-Protocol Communication and Topology Identification

● Integrates multiple communication modes including HPLC, Bluetooth, and RS485, supporting power protocols such as DL/T 698.45. It achieves automatic transformer zone topology identification via characteristic current technology, boosting fault location efficiency by 60%.

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Security Protection and Modular Design

● Equipped with safety mechanisms such as over/under-voltage protection and three-stage short-circuit protection, its protection rating reaches IP30. Adopting a hot-swappable modular design, it supports rapid replacement of modules including the circuit breaker status module and metering module.

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Smart O&M and Energy-Saving Management

● Supports proactive reporting of power outage events and intelligent diagnosis of electricity theft, combined with energy consumption monitoring to achieve segmented precise management. Its application in transformer zones can effectively reduce line loss.