Schneider Electric LGA36400U43X Circuit Breaker

Schneider Electric's Square D PowerPact L-frame molded‑case circuit breaker, model LGA36400U43X, provides robust three‑phase overcurrent protection for high‑current feeders: 400 A, 3‑pole, rated up to 600 V AC with an 18 kA interrupting capacity. It uses I‑Line bus connections for streamlined installation in PowerPact L gear and houses a Micrologic 5.3A electronic trip unit that delivers precise protection with long‑time, short‑time, and instantaneous trip functions. This 3‑pole unit is intended for industrial and commercial distribution panels, switchgear, and feeder applications where reliable, instantaneous protection of each phase is critical across 50/60 Hz networks.