The Schneider Electric LV848429 is a MasterPact MTZ2 drawout circuit breaker, 4-pole, rated 1600 A at 40 °C. The drawout chassis allows removal without disturbing line or load connections, which cuts downtime during maintenance or swap-out.
Breaking capacity and selectivity — what the ratings mean
That's Category B selectivity, so it coordinates with downstream breakers to isolate only the faulted branch.
Mechanical and electrical endurance
Mechanical durability is 25,000 cycles with periodic preventive maintenance. Electrical durability at 440 V AC is 10,000 cycles under EN/IEC 60947-2, and 6,000 cycles in AC-3 motor-switching duty. Maximum breaking time is 25 ms, closing response time 70 ms. These numbers matter for applications with frequent switching or where fault clearance speed is critical for arc-flash energy reduction.
Drawout mounting with 115 mm connection pitch. Chassis dimensions: 403 mm depth, 556 mm width, 439 mm height (with chassis); without chassis the breaker body is 300 mm deep, 493 mm wide, 300 mm tall. Mounts on rails or base plate. Front and rear connection options for both upside and downside. IP30 finger protection on the front face — standard for enclosed switchgear.
Designed for pollution degree 3 (industrial environment). Altitude derating above 2000 m. Rated insulation voltage 1000 V AC, impulse withstand 12 kV.