The LV839194 is a Schneider Electric MasterPact MTZ2 drawout circuit breaker, 3-pole, rated 800 A at 40 °C. It carries an breaking capacity code with interrupting ratings up to 200 kA Icu at 254 V AC 60 Hz per ANSI C37.50, stepping down to 100 kA Icu at 635 V AC 50 Hz. The ArcBlok technology inside this frame reduces arc energy during interruption, which helps with switchgear coordination and extends contact life. Drawout mounting means the breaker slides into a cradle — you can rack it out for maintenance or replacement without unbolting bus connections. The base plate rails and 4.5 in connection pitch match standard ANSI switchgear cubicle layouts. Mechanical durability is rated at 12,500 cycles, electrical durability at 2,800 cycles under ANSI C37.50. Maximum breaking time is 9 ms, with a closing response time of 70 ms. The integral instantaneous protection range is 72 to 88 kA.
Sourcing reality — obsolete, but available
Schneider Electric has marked the LV839194 as obsolete.