Schneider Electric LA36400N 3 Phase Circuit Breaker

Schneider Electric's Square D LA36400N is a 400 A, three-pole molded‑case circuit breaker built for 600 V AC distribution with I‑Line mounting. It employs a thermal‑magnetic trip mechanism to protect three‑phase feeders and equipment, and it carries an interrupting rating of 22 kA at 600 VAC and 10 kA at 250 V DC, making it suitable for high‑current fault interruption in industrial or commercial panels. The LA36400N family is part of Schneider Electric's LA series MCCBs designed for compact yet rugged protection of large‑load circuits, with a 600 V maximum rating and 3P configuration for three‑phase service up to 400 A. Typical installations include feeders and large‑load circuits in panelboards and switchgear where reliable three‑phase protection is required and space is at a premium. This combination of current rating, voltage rating, and interrupting capacity supports dependable protection for demanding electrical environments while integrating with standard 600 V distribution gear.