Schneider Electric LA36125 I-Line Circuit Breaker

Schneider Electric’s Square D LA36125 is a 125-amp, three-pole molded-case circuit breaker (MCCB) built on the LA I-Line frame for 600 V AC systems. It delivers 22 kA of interrupting capacity at 600 VAC and 10 kA at 250 VDC, with thermal-magnetic protection that provides long-time and instantaneous trip functions for overloads and short circuits. The device uses line and load lug terminals and is designed for I-Line mounting in compatible panelboards, making it suitable as a feeder or main protective device in commercial or light industrial power distribution. As part of the LA family, the 125 A, 3P breaker protects three-phase circuits and coordinates with other LA devices within the same enclosure to help isolate faults while maintaining system reliability. In typical installations, it protects feeders to transformers, large motors, and other heavy loads, and it integrates into Schneider Electric’s I-Line ecosystem for consistent performance across panelboard setups. The LA36125’s rugged molded-case construction and standardized termination options aim to simplify replacement and maintenance in facilities relying on three-phase distribution.