The LV838885 is a Schneider Electric MasterPact MTZ2 drawout circuit breaker, rated 1600 A at 104 °F (40 °C), 3-pole, with L breaking capacity code. It's listed for 200 kA Icu at 240 V AC, 150 kA Icu at 480 V AC, and 100 kA Icu at 600 V AC under UL 489. The unit ships without a Micrologic trip unit, so you'll need to order that separately.
The interrupting ratings (200 kA Icu at 240 V, 150 kA at 480 V, 100 kA at 600 V) tell you the maximum fault current the breaker can safely clear at those voltages; match these to your available fault current at the service entrance. The 30 kA short-time withstand current (Icw) for 0.5 s per UL 489 means the breaker can hold in during a delayed trip coordination scheme, which is key for selective coordination in a distribution panel.
