What this switch disconnector carries
The LV846313 is a MasterPact MTZ2 25HH switch disconnector rated for 2500 A continuous at 440 V AC — that's the current it passes without derating in a 50/60 Hz distribution circuit. The 100 kA Ics (service breaking capacity) matches the Icu at the same voltages, so you get full selectivity headroom without stepping to a larger frame. Four poles, fixed-mount chassis, IP30 enclosure. No visible break — the contact position indicator tells you open/closed state. Rated for isolation per EN/IEC 60947-3, pollution degree 3, impulse withstand 12 kV. Mechanical durability is 15,000 cycles with preventive maintenance; electrical durability at AC-23A duty is 5,000 cycles at 440 V.
Where it lands in a panel
Fixed-mount chassis bolts into a distribution switchboard or MCC bucket. The 537 mm width and 352 mm height fit standard MasterPact cutouts; depth at 300 mm leaves room for rear cable entry or busbar connection. Connection pitch is 115 mm between poles — plan your lug spacing and bus tap-off accordingly. IP30 means it's for indoor, clean environments; not rated for washdown.