Yaskawa Electric Corporation HC-TN200V4B15X Current Transformer

The Yaskawa HC-TN200V4B15X is a compact PCB-mounted current transformer (current sensor) designed to be installed inside Yaskawa inverters and drives to monitor motor current and provide feedback to the drive control circuitry. As part of the HC-TN series, it outputs an analog voltage proportional to the measured current and is intended for internal mounting within inverter/servo drive assemblies rather than as a standalone device. Typical specifications include a rated current range in the 50A–800A class (series dependent), a ~10 microsecond response time, and a ±15 V supply for HC-TN series operation. Weighing about 46 g, this sensor is commonly deployed in industrial automation applications such as variable frequency drives, servo systems, CNC machinery, and welding equipment where precise current measurement supports control and protection. Common replacements in the HC-TN family include HC-TN100, HC-TN300, and HC-TN600 variants with matching ratings when an exact match is unavailable.