Square D LDL36600U43X is a PowerPacT L‑frame molded‑case circuit breaker rated for 600 A and 600 V, designed as a three‑pole device with line and load lug terminations. This model uses Schneider Electric’s LSI electronic trip unit, providing configurable protection functions for 600 V feeders and distribution circuits. With its line/load lug configuration and L‑frame heritage, it is built for direct connections to bus bars and downstream equipment in commercial and industrial power systems.
