Schneider Electric LAL36400MB Circuit Breaker

Schneider Electric Square D LAL36400MB is a PowerPact molded‑case circuit breaker (MCCB) in the LA frame, rated for 400 A and 600 V AC, with a thermal‑magnetic trip mechanism and lug terminals. The MB suffix denotes a short‑handle variant of the LA36400 series, designed for easier operation in tight spaces. This 3‑pole device provides up to a 22 kA interrupting rating at 600 VAC and 10 kA at 250 V DC, making it suitable as a main or feeder protection device in commercial and light industrial distribution gear. The unit supports three‑phase distribution and is part of Schneider Electric’s PowerPact MCCB family, offering reliable, field‑installable protection for panelboards and switchgear.