Square D LJF36400U31X PowerPacT L 3P 400A Electronic Molded Case Circuit Breaker Unit

Feature & Principle

This current-limiting molded case breaker uses Micrologic 3.3 electronic trip unit. It provides adjustable overload and instantaneous short-circuit LI protection. 80% rated design, busbar connection, compatible with auxiliary and alarm accessories for status signal transmission to monitoring system.

Specifications

Model: LJF36400U31X Brand: Square D (Schneider) Series: PowerPacT L Poles: 3P Rated Current: 400A Rated Voltage: 600V AC Interrupt Capacity: 25kA @600V AC Trip Unit: Micrologic 3.3 (LI) Connection: Busbar Certification: UL489, CSA, IEC

Components & Diagnostics

Insulating molded housing, Micrologic electronic trip controller, silver alloy contact set, arc extinguishing chamber, operating handle and busbar terminal assembly. Common faults include contact overheating, trip parameter drift, nuisance tripping and trip unit failure.

Product Brief

LJF36400U31X circuit breaker, Square D power spare widely used for industrial main switchboard, pump, fan and heavy load low voltage feeder protection.