The LV846216 is a Schneider Electric MasterPact MTZ2 drawout circuit breaker, part of the MasterPacT range. It's a 4-pole, 3200 A rated device (at 40 °C) built for power distribution protection in commercial and industrial switchboards. The H2V performance class delivers 100 kA Ics at 440 V AC — that's the service breaking capacity it can interrupt and then be reclosed without refurbishment, which matters for continuity in critical feeders.
Rated current is 3200 A at 40 °C ambient. If your switchgear room runs hotter, you'll need to derate — the operating range goes up to 70 °C, but the full 3200 A only holds at 40 °C. The Icw short-time withstand is 100 kA for 0.5 s and 1 s, and 75 kA for 3 s; that tells you the breaker can ride through a delayed trip coordination scheme without damage. Insulation voltage is 1000 V AC, impulse withstand 12 kV, so it's comfortable in 690 V systems with proper coordination, though the operational voltage here is rated at 440 V AC. Electrical durability is 5000 cycles at In under AC-23A (440 V), and 6000 cycles under AC-3. Mechanical durability is 15,000 cycles with periodic preventive maintenance. That's typical for a drawout breaker this size — it's not a daily-switching device; it's a protection and isolation device for a main or large feeder. The maximum breaking time is 25 ms, closing response 70 ms, so it clears faults fast enough for selective coordination.
This is a drawout breaker — the chassis stays wired in the switchboard, and the breaker element slides in and out for maintenance or replacement without disturbing the power connections. It mounts on rails or a base plate, with a 115 mm connection pitch. Both front and rear connections are available for upside and downside terminations, giving flexibility in busbar layout. Neutral is on the right. The IP30 rating means it's for indoor, clean environments — not washdown, not outdoor.