Intelligence for Electrical Networks: The PowerLogic CM4250
High-Performance Circuit Monitoring
The Schneider Electric PowerLogic CM4250 is a premier circuit monitoring device engineered for the most demanding electrical environments. In modern industrial facilities, the cost of poor power quality can be astronomical, leading to equipment failure and unscheduled downtime. The CM4250 is designed to prevent these issues by providing a continuous, high-fidelity view of the electrical network. It goes far beyond simple energy metering, offering sophisticated analysis of voltage sags, swells, and transients. By capturing this data in real-time, the CM4250 empowers facility managers to identify the root cause of electrical disturbances before they impact critical production equipment.
Harmonic Analysis and Precision Metering
A standout feature of the CM4250 is its exceptional harmonic monitoring capability. The device can analyze harmonics up to the 255th order, providing a detailed breakdown of the total harmonic distortion (THD) on the system. This level of granularity is essential for facilities utilizing high concentrations of non-linear loads, such as variable frequency drives (VFDs) and electronic switchgear. The CM4250 features 0.2S accuracy for active energy, ensuring that it meets the requirements for billing-grade metering and internal cost-allocation. Its 4-quadrant measurement capability allows it to monitor both imported and exported energy, making it an ideal choice for facilities with on-site renewable generation.

Connectivity and Integrated Software Features
The CM4250 is a cornerstone of the Schneider EcoStruxure Power architecture. It features integrated Ethernet and serial ports, supporting protocols such as Modbus TCP/IP and ION. This allows the device to feed data directly into energy management software suites, where it can be used for trend analysis and automated reporting. The unit also includes significant onboard memory for historical data logging and waveform capture, ensuring that critical data is preserved even in the event of a network failure. The built-in web server provides immediate access to real-time data and configuration settings via any standard web browser.
Industrial Reliability and Safety
Built for the rigors of industrial power distribution, the CM4250 features high dielectric strength and robust surge protection. Its 96mA current input and 240V AC / 300V DC power options provide flexibility for various cabinet configurations. The device is designed for easy mounting in standard switchgear and includes a clear, high-contrast display for local monitoring. By utilizing the genuine Schneider PowerLogic CM4250, facility operators ensure that their power monitoring infrastructure is as reliable as the electrical network it protects, providing the high-quality data needed to maintain operational efficiency and safety.




