Switch-disconnector for distribution — 2000 A, 100 kA Icu
The LV846310 is a fixed-mounted MasterPact MTZ2 20 HH switch-disconnector rated 2000 A at 440 V AC, with a breaking capacity of 100 kA Icu at 440 V AC. It is a 3-pole unit designed for distribution applications and certified to EN/IEC 60947-3. The part is suitable for isolation and carries a visible contact position indicator — no visible break, but the indicator confirms open/closed state.
The 2000 A continuous current and 100 kA Icu at 440 V place this in the high-current distribution tier — sized for main incoming feeders or large busbar sections where fault levels are severe. The Icw of 75 kA for 3 s and Icm of 220 kA peak confirm it can withstand and make onto high-energy faults. Utilisation categories AC-23A and AC-3 mean it handles motor switching (AC-3) and mixed resistive-inductive loads (AC-23A), though the 2000 A rating is well above typical motor branch sizes; this is a main switch, not a motor-starter component. Electrical durability is 8000 cycles for AC-23A and 6000 cycles for AC-3 at 440 V; mechanical durability is 15000 cycles with periodic preventive maintenance. Performance Level HH indicates high endurance for frequent switching.
Fixed mounting with a connection pitch of 115 mm. Dimensions: 422 mm wide, 352 mm high, 300 mm deep. IP30 protection — suitable for indoor panel installation where tools are needed to access live parts.