The LV846345 is a MasterPact MTZ2 40 HH switch disconnector rated for 4000 A continuous current at 440 V AC, with a 100 kA Icu breaking capacity at 440 V AC 50/60 Hz per EN/IEC 60947-2. It is a 4-pole, fixed-mount unit with a push-button control and a visible contact position indicator, confirming suitability for isolation per EN/IEC 60947-3.
Rated service breaking capacity Ics matches Icu at 100 kA across both 220/415 V and 440 V — meaning the switch can be reclosed after a fault at full rated short-circuit current without derating. The short-time withstand Icw is 75 kA for 3 s or 100 kA for 1 s, which gives selectivity headroom for downstream breakers in a distribution panel. The making capacity Icm peaks at 220 kA at 440 V, covering the worst-case asymmetric fault closure.
Fixed-mount chassis, 537 mm wide × 352 mm high × 300 mm deep, with a 115 mm connection pitch.