Schneider Electric’s Square D LJL36400U43X is a 3‑pole molded‑case circuit breaker (PowerPact L‑Frame) rated for 400 A and up to 600 V. It provides a 25 kA short‑circuit interrupting rating and ships with protective plastic covers for safe handling and installation. Designed for industrial distribution, this 400 A, 3P device protects feeders and equipment in panels, switchboards, and motor control centers where high‑current protection is required.
