The ABB UFC921A101, part number 3BHE024855R01, is a high-precision Voltage Transducer Unit designed for use within ABB’s advanced excitation and control systems, most notably the UNITROL 6000 series. This essential component is responsible for accurately measuring generator terminal voltages and other auxiliary voltages. By providing reliable and precise feedback to the main controller, the UFC921A101 ensures stable and efficient operation of power generation equipment. Its robust design is engineered to perform consistently in demanding industrial environments, making it a critical part for maintaining system integrity and performance.