The Lauritz Knudsen (Formerly L&T Switchgear Business) DU400N MCCB (320–400A) is a high-capacity molded case circuit breaker engineered for demanding industrial and commercial electrical systems. With a 50kA breaking capacity, it delivers powerful short-circuit protection, making it ideal for transformer incomers, MCC feeders, HVAC systems, large motor loads, and high-fault-level installations.This MCCB features an adjustable thermal release range of 320–400A, enabling precise coordination with your system’s full-load current requirements. Built as per IS/IEC 60947-2, the DU400N incorporates advanced arc-quenching chambers, a strong operating mechanism, and compact stainless-steel enclosure compatible across DU/DY MCCB families for easy panel integration.A wide range of snap-fit accessories—including auxiliary contacts, shunt trips, under-voltage releases, trip alarms, and spreader terminals—enhances flexibility for panel builders, OEMs, and industrial automation environments. Its rugged design ensures long service life, stable performance, and improved safety in critical applications.Meta Summary: Buy LK DU400N 320–400A TP 50kA MCCB online from Maheshwari Distributors – genuine industrial-grade breaker with fast delivery across India.
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