Schneider Electric Square D LX36400 Circuit Breaker

Schneider Electric Square D LX36400 Circuit Breaker is a 400 A, 3-pole molded‑case breaker from the LX family, designed for I-Line plug‑in mounting in industrial distribution gear. It houses a Micrologic trip unit (Series B) that provides Long‑Time, Short‑Time and Instantaneous protection (LSI) with a non‑interchangeable trip characteristic, ensuring consistent protection across installations. Rated up to 600 V, it offers a short‑circuit interruption rating of up to 65 kA at 480 V, suitable for high‑demand feeders and three‑phase circuits. The LX36400 fits LX frame panels and compatible Square D distribution equipment, enabling straightforward integration into existing Square D control and power distribution architectures. Typical applications include motor feeders, control panels, and distribution blocks in industrial facilities where reliable protection for three‑phase loads is required. With its robust construction and I-Line plug‑in mounting, maintenance and replacement in compatible enclosures can be performed without rewiring or panel reconstruction.