Square D LG-283-KA Molded Case Circuit Breaker is a 225-amp, KA-frame molded-case breaker from Square D (Schneider Electric) used to protect feeders and MCC mains in industrial panels. It is part of the legacy KA/KH/KC/KI family, a high-current line historically furnished with screw-fastened lugs for terminating conductors. This KA-frame device sits in Square D's older, heavy-current lineage, which is rated up to 250 A in many KA-series models. When selecting a replacement, confirm panel compatibility with KA-frame breakers and ensure the 225-A rating matches the protected circuit.
