The Schneider LV846162 is a MasterPact MTZ2 fixed-mount circuit breaker, 3-pole, rated 1250 A at 40 °C. It belongs to the H2V performance tier — 100 kA ultimate breaking capacity (Icu) at 440 V AC, 50/60 Hz, and the same 100 kA service breaking (Ics). That means it clears a fault up to 100 kA and stays functional afterward, no immediate replacement needed. Category B selectivity (per EN/IEC 60947-2) lets it coordinate with downstream breakers so only the faulted branch trips — critical for a production line where you want the main breaker to hold while a feeder clears. Rated operational voltage is 440 V AC, insulation voltage 1000 V AC, impulse withstand 12 kV. Short-time withstand (Icw) holds 100 kA for 0.5 s and 1 s, 75 kA for 3 s — enough for selective coordination with downstream devices. Mounting is fixed on rails or base plate, connection pitch 115 mm. Both upside and downside connections accept front or rear terminations — common in switchboard builds where cable routing differs between incoming and outgoing sections. IP30 protection; inside a panel that's fine, but keep it out of direct washdown zones.
Also meets IEC 61557-12 for insulation monitoring. Isolation suitability is confirmed per EN/IEC 60947-2 — the breaker provides visible isolation when open. Altitude derating above 2000 m is specified, so check if your installation is above that.