The LV839097 is a MasterPact MTZ2 drawout circuit breaker from Schneider Electric, rated 800 A continuous at 104 °F (40 °C) with an L1F breaking capacity code. It delivers 200 kA Icu at 254 V AC and 508 V AC per ANSI C37.50, and 130 kA Icu at 635 V AC — serious fault-clearing headroom for large industrial feeders or switchgear lineups. The 3-pole drawout chassis means it pulls out for maintenance or replacement without de-energizing the bus, saving hours of downstream downtime on a plant electrical system.
For most 480 V industrial services the 130 kA Icu at 635 V AC is the figure to check against your available fault current. The 22 kA Icw for 0.5 s (ANSI C37.50) tells you the short-time withstand: the breaker can carry that fault current for half a second without damage, which is what you need for selective coordination downstream. Drawout mounting means the breaker slides into a cradle with disconnecting contacts — no bolted bus work for routine swaps. The 16.8 in depth, 17.5 in width, and 17.3 in height define the envelope for the switchgear cell; the 4.5 in connection pitch sets the bus-bar spacing. If you're retrofitting into an existing lineup, those dimensions are the first check against the cell cutout.
Compliance documentation
The MasterPact MTZ2 series carries UL and ANSI certifications per the C37.50 standard cited in the breaking capacity ratings. For RoHS, REACH, and IEC compliance documentation, the manufacturer's product page and technical library are the authoritative source — those declarations are typically downloadable per order code on Schneider's site.