The Schneider Electric LV848226 is a MasterPact MTZ2 drawout circuit breaker, part of the MasterPacT range, rated 800 A at 40 °C with a 4-pole configuration. It carries a performance type H1, delivering 66 kA Ics (service breaking capacity) at 220/415 V AC, 440 V, 500/525 V, and 660/690 V AC — meaning it clears faults up to that level across the full low-voltage distribution range without upstream coordination issues. This is a Category B breaker, designed for selectivity in power distribution protection — it coordinates with downstream devices so only the faulted branch opens. The drawout mounting means the breaker chassis stays wired to the bus; the moving portion slides out for inspection or replacement without disturbing the main connections. The unit ships without a control unit, so the buyer supplies the trip unit separately — a standard practice for MTZ2 frames where the protection profile (LSIG, LS, etc.) is specified at order time. Control is push-button, with front and rear connection options on both upside and downside.
Impulse withstand Uimp is 12 kV, which covers the transient overvoltage category for distribution panels in pollution degree 3 environments (, per IEC 60947-1). The maximum breaking time is 25 ms, and maximum closing response time is 70 ms — fast enough to limit arc energy in a fault. Electrical durability is rated at 10,000 cycles at 440 V and 690 V AC under EN/IEC 60947-2, and 6,000 cycles for AC-3 motor-switching duty. Mechanical durability is 25,000 cycles with periodic preventive maintenance. Power dissipation at rated current is 100 W — account for this heat in the enclosure sizing; a sealed panel without forced ventilation will need derating above 40 °C. Altitude derating applies above 2000 m. Sensor rating options are 400 A, 630 A, and 800 A — the frame accepts multiple sensor sizes for the same chassis.