The Schneider Electric LV846344 is a MasterPact MTZ2 32 HH switch disconnector rated for 3200 A continuous at 440 V AC, with a breaking capacity of 100 kA Icu at 440 V AC. It's a 4-pole fixed-mount unit with push-button control, designed for distribution applications where isolation and high fault current handling are required. The 3200 A rating means this part handles the full load of a large industrial feeder or a main service entrance without needing parallel devices.
The rated short-time withstand current (Icw) of 75 kA for 3 seconds means it can ride through a delayed trip coordination scheme without damage, which is essential for selective coordination in a distribution panel. The 12 kV impulse withstand voltage (Uimp) confirms it survives lightning surges and switching transients on the line side.
The fixed-mount footprint measures 537 mm wide by 352 mm tall by 300 mm deep — that depth (300 mm) is the dimension you need for enclosure depth planning, especially if you're retrofitting into an existing switchboard. The 115 mm connection pitch between poles matches standard busbar spacing for 3200 A gear. IP30 protection means it's suitable for indoor panel installation where tools and fingers are the main concern; no washdown or outdoor exposure.
Rated to EN/IEC 60947-3 for switch-disconnector duty, with suitability for isolation marked on the nameplate. The AC-23A and AC-3 utilization categories cover switching of motor loads and mixed resistive-inductive loads. Performance Level HH indicates high reliability under switching duty.