The LE36100LI is a molded case circuit breaker rated for 600V and 100A, falling under Category 01048-LE 250, 400_FRAME. This frame size indicates the physical mounting and bus connection pattern it integrates with in a panelboard or switchboard lineup — the 250/400 frame designation tells you the breaker's mechanical footprint and the maximum continuous current the frame can carry, not the trip rating itself. The 100A rating is the overcurrent protection setting; the frame can accommodate higher-rated trip units if needed for future re-rating.
Packaged as a single unit per order code. The 600V rating covers 480V and 600V class systems common in North American industrial distribution; the 100A continuous current handles feeder and large branch circuits for motor control centers, lighting panels, and sub-distribution boards. Frame size 250/400 means the breaker occupies the same panel cutout as other breakers in that family, simplifying retrofit or replacement within an existing lineup.