Eaton KES3250LSI is an LSI trip unit for three‑pole Type KD, HKD, and KDC frame circuit breakers, rated for 250 A. This model fits KD, HKD, and KDC frames and provides the LSI trip functionality required for protection of three‑phase electrical distribution up to 250 A. The part number KES3250LSI identifies this specific trip unit, intended to be installed as a replacement or upgrade within Eaton KD/HKD/KDC frame breakers.
