Eaton KT3175 Molded Case Circuit Breaker Trip Unit

Eaton Cutler-Hammer KT3175 Molded Case Circuit Breaker Trip Unit is a 175‑amp trip unit designed for Eaton KT3175 K‑frame molded case circuit breakers, providing the essential sensing and tripping function that protects electrical circuits from overloads and faults. As the trip unit for KT3175 K‑frame MCCBs, it coordinates with the breaker mechanism to monitor current levels and initiate an electrical interruption when parameters are exceeded. It supports trip‑unit configurations Type KD and HKD, enabling compatibility within KD/HKD setups used in industrial power distribution. Typical applications include industrial electrical distribution panels, motor control centers, and other equipment enclosures that rely on Eaton molded‑case breakers for reliable overcurrent protection. Technicians installing or replacing a KT3175 trip unit should verify compatibility with KD or HKD configurations and the specific KT3175 MCCB frame for proper fit and operation.