The Schneider Electric LV848180 is a MasterPact MTZ2 fixed-mount circuit breaker, 4-pole, rated 1600 A at 40 °C, with an H2 performance class delivering 100 kA breaking capacity at 415 V AC. It's a Category B breaker (fully selective per EN/IEC 60947-2), meaning it coordinates with downstream devices to isolate only the faulted branch — critical for maintaining uptime on a plant distribution bus.
Rated operational voltage is 690 V AC, with an insulation voltage of 1000 V AC and impulse withstand of 12 kV — this breaker is built for 480/600 V class switchgear, not just 240 V panels. Short-time withstand (Icw) is 85 kA for 1 second, which is what lets it ride through a downstream fault and stay closed for selective coordination. Power dissipation is 170 W — plan for ventilation in the enclosure. Mechanical durability is 25,000 cycles with periodic preventive maintenance; electrical durability is 10,000 cycles at 440 V AC under EN/IEC 60947-2. For motor-switching duty (AC-3), it's rated 6,000 cycles at 440/690 V. Maximum break time is 25 ms, close time 70 ms — fast enough for most coordination schemes. This breaker ships without a control unit and uses push-button control. It accepts sensor ratings from 800 A through 1600 A, so you can fit it with a lower-rated sensor if the load doesn't need the full frame. Neutral is on the right. Mounting is fixed on rails or a base plate. Altitude rating is 0–2000 m without derating, 2000–5000 m with derating.