The LV847113 is a fixed-mount MasterPact MTZ1 circuit breaker rated 630 A at 40 °C with an H2 performance class delivering 50 kA breaking capacity at 415 V AC. The 3-pole (3P) configuration suits three-phase power distribution, and the Category B selectivity allows full discrimination with downstream breakers, so a fault on a branch doesn't take the whole panel down.
Pollution degree 3 per IEC 60947-1 confirms it handles conductive pollution in industrial enclosures without tracking.
Fixed-mount design on rails or base plate, with front and rear connection options on both upside and downside. The 70 mm connection pitch matches standard busbar spacing for panelboard integration. Dimensions: 276 mm wide, 301 mm high, 209 mm deep — plan for a full-height compartment in the switchboard. IP30 protection means it's suitable for enclosed installation; no washdown rating, so keep it inside the cabinet.
Performance and durability
Electrical durability: 3000 cycles at 690 V AC, 6000 cycles at 440 V AC per EN/IEC 60947-2. Mechanical durability: 12,500 cycles with periodic preventive maintenance. The rated short-time withstand current (Icw) is 42 kA for 1 second, giving downstream breakers time to clear a fault before this main breaker trips — that's the selectivity Category B in action. Maximum breaking time is 25 ms, fast enough to limit arc energy in a bolted fault.