Yaskawa Electric Corporation UND-300B Current Transformer Module

The Yaskawa Electric Corporation UND-300B/100 Current Transformer Module is a compact, panel-mounted current sensing device that provides a low-voltage feedback signal proportional to load current for use in Yaskawa drive and power control systems. Designed for real-time monitoring, it supports applications in VFDs, servo drive systems, and power distribution panels, helping protection, control loops, and safe motor operation. Key specs include a ~100 A class current rating (variant dependent), industrial-grade accuracy, and a low-voltage output suitable for feedback circuitry; installation is panel-mounted or integrated into drive assemblies, and the module weighs around 0.02 lbs for easy replacement. Common replacements include UND-300B/75 and UND-300B/200 or generic 100 A current transformer modules.