Schneider Electric's LE4CT2 Neutral Current Transformer Sensor is an external neutral CT for Square D Micrologic trip units on LE and LX molded‑case circuit breakers. It provides a 400 A primary rating, enabling four‑wire systems to monitor neutral current and feed accurate signals to the Micrologic protection relay. This 400 A neutral CT sensor is used in commercial and industrial panels to support neutral current measurement and protection functions for ground-fault/neutral sensing within the Micrologic trip system.
