The Schneider Electric LV839089 is a Masterpact MTZ3 32 HC automatic switch disconnector rated for distribution duty. It carries 3200 A at 104 °F (40 °C) on a three-pole drawout chassis, with a breaking capacity of 200 kA Icu at 254 V AC 50/60 Hz per ANSI C37.50.
The 3200 A rated operational current at 40 °C sets the continuous load this switch can carry without derating in a typical 40 °C ambient. For higher ambient conditions, expect a derate curve from the manufacturer. The short-time withstand rating of 100 kA for 1.5 s (ANSI C37.50) supports selective coordination with downstream breakers during a delayed trip.
The drawout mounting means the switch chassis slides into a fixed cradle — typical for switchgear where you need to rack out for maintenance or replacement without disturbing the bus. The 3-pole configuration suits three-phase distribution in ANSI-style metal-enclosed switchgear.