For uninterruptible power supply (UPS) applications, Ningbo CRRC Times Sensing provides a comprehensive range of Hall-effect current sensor solutions tailored for two mainstream UPS architectures — modular UPS and tower UPS — fully covering current sensing requirements across the rectifier, inverter, bypass and battery circuits of UPS systems. For high-density modular UPS, the NACA.XXT and NACF.XXF series feature a compact, highly integrated form factor suitable for embedding inside power units; they accurately measure input/output current of power modules and battery charging/discharging current, delivering real-time feedback for parallel current sharing control, battery energy management and overcurrent protection to match the demands of flexible scalability and high power density. For tower UPS, the closed-loop Hall B-series delivers excellent accuracy and linearity for high-current sensing in the main power circuit, while the open-loop Hall NACF.XXXJ-S5/V and NACF.XXXJ1-S5/V series support current monitoring in branch circuits such as the rectifier and bypass, together forming a complete sensing framework. With strong electromagnetic immunity and stable performance over a wide temperature range, the full product portfolio enables reliable inverter voltage regulation, seamless power switching protection and fault diagnosis for UPS systems, ensuring uninterrupted power for critical loads in data centers, industrial automation, communication base stations and other mission-critical scenarios.