The Schneider Electric LV839201 is a MasterPact MTZ2 drawout circuit breaker rated for 1600 A continuous at 104 °F (40 °C), 3-pole, with an L1F breaking capacity code. It delivers 200 kA Icu at 254 V AC and 508 V AC, and 130 kA Icu at 635 V AC per ANSI C37.50 — that means it safely interrupts fault currents up to 200 kA at the lower voltages, which covers most large-service entrance and feeder applications in industrial and commercial power distribution. The drawout mounting lets you rack the breaker in and out of its cradle without unbolting line and load connections — a key feature for maintenance and quick swap-out in switchgear lineups. The ArcBlok technology is integrated to reduce arc flash energy during interruption.
The 1600 A frame is the CT rating and the continuous current at 40 °C — size your bus and cable for this ampacity. The short-time withstand current (Icw) is 22 kA for 0.5 s, which governs selectivity coordination with downstream breakers: you need upstream devices that can hold in for 0.5 s at 22 kA to let this breaker clear a fault selectively. Integral instantaneous protection trips between 49.5 and 55.5 kA — this is the magnetic-only pickup range for short-circuit protection. The maximum breaking time is 9 ms, and the closing response time is 70 ms max. Mechanical durability is 10,000 cycles; electrical durability is 1,000 cycles under ANSI C37.50 — plan maintenance intervals accordingly for frequent switching applications.
Physical Fit & Panel Integration
The drawout cradle mounts on base plate rails. Overall dimensions: 17.5 in wide (444.3 mm), 17.3 in high (438.8 mm), 16.8 in deep (426.8 mm). The connection pitch is 4.5 in (115 mm) — verify your bus bar or cable lug spacing matches this centerline before committing the switchgear layout.