The LV839093 is a Schneider Electric Masterpact MTZ3 50 HC switch disconnector, rated 5000 A at 104 °F (40 °C) for distribution duty. Its 200 kA Icu at 508 V AC 50/60 Hz (with external relay, per ANSI C37.50) means it can safely interrupt fault currents up to that level without upstream damage — the number that governs the SCCR for the entire downstream panel. The 100 kA Icw for 1.5 s (ANSI C37.50) tells you it withstands a delayed trip coordination window, which is the selectivity parameter a site electrical engineer needs to verify against the upstream breaker curve.
Drawout chassis mounting — panel integration
Drawout mounting on a chassis support means this 3-pole unit slides in and out of a fixed cradle — no need to disconnect main power cables for maintenance or swap-out. The 16.8 in depth, 31.07 in width, and 18.8 in height (–) define the cutout and clearance envelope in the switchgear lineup; the 9.06 in (230 mm) connection pitch sets the bus-bar drilling pattern. For a panel OEM or site planner, those dimensions are the first fit check before the crane lift.