Square D LAB364001021 Shunt Trip Circuit Breaker

The Square D LA364001021 I‑Line molded‑case circuit breaker is a 400 A, 3‑pole unit with a shunt‑trip accessory for remote tripping, rated for 600 VAC and delivering up to 22 kAIC interrupt capacity. Built on the LA PowerPact frame, it uses the I‑Line bus interface for straightforward installation in compatible Square D panels and is configured for three‑phase ABC operation. The shunt‑trip feature enables tripping from a separate control circuit, supporting remote protection schemes in critical electrical systems. This breaker is commonly used in industrial distribution panels and other high‑current applications where remote trip capability and robust interruption performance are required.