Switch-disconnector for distribution — 2000 A, drawout
The Schneider Electric LV848749 is a MasterPact MTZ2 20 HA10 switch-disconnector rated for 2000 A at 1150 V AC, 50/60 Hz, in a 3-pole drawout configuration. It meets EN/IEC 60947-3 for isolation and switching duty, with a suitability-for-isolation marking and a visible contact position indicator. Rated short-time withstand current (Icw) is 50 kA for 1 s and 50 kA for 3 s per EN/IEC 60947-3; short-circuit making capacity (Icm) reaches 105 kA peak at 1150 V AC. These figures govern selectivity coordination downstream — the switch holds through a fault long enough for the branch breaker to clear, without upstream tripping. Utilisation categories AC-23A and AC-3 cover switching motor loads and mixed resistive-inductive circuits.
Drawout integration and panel fit
Drawout mounting on a chassis support means the switch-disconnector can be racked in and out of the cradle for maintenance or replacement without disturbing the main bus connections. Connection pitch is 115 mm between phases. Dimensions: 441 mm wide, 439 mm high, 403 mm deep. IP30 protection covers the front face — adequate for enclosed switchgear, not for washdown zones. The 12 kV rated impulse withstand voltage (Uimp) confirms the insulation system handles switching transients on 1150 V networks.