The Schneider Electric LV846194 is a MasterPact MTZ2 drawout circuit breaker in the MasterPacT range, rated 2000 A at 40 °C with 4 poles and a Category B selectivity profile. The 12 kV impulse withstand voltage (Uimp) and 100 kA short-time withstand (Icw) for 1 second confirm it coordinates with downstream devices in a selective distribution scheme.
The 100 kA Ics at 440 V AC means the breaker can interrupt a fault at that level and be returned to service; the 220 kA Icm making capacity ensures it closes against an existing fault without welding contacts. Electrical durability of 8000 cycles at rated current under AC-23A duty covers frequent switching of motor loads; mechanical durability of 15000 cycles with periodic maintenance governs the mechanism life. The 25 ms maximum breaking time and 70 ms closing response are coordination parameters for arc-flash studies and selective tripping schemes.