MasterPact MTZ2 32 HA10 — 3200 A drawout switch disconnector
The LV848761 is a MasterPact MTZ2 32 HA10 switch disconnector rated for 3200 A continuous at 1150 V AC, 50/60 Hz. It is a 4-pole drawout unit designed for main incoming or bus-tie positions in low-voltage switchgear. Rated short-time withstand (Icw) is 50 kA for 1 s and also for 3 s, per EN/IEC 60947-3. That 3-second rating is unusual and matters for selective coordination: downstream breakers can clear a fault without the main disconnector tripping, because the switch holds through the delay. The 12 kV impulse withstand (Uimp) confirms insulation coordination for 1150 V class systems. Utilization categories AC-23A and AC-3 cover switching of motor loads and mixed resistive-inductive loads, including occasional inrush. The switch is also suitability-for-isolation marked per EN/IEC 60947-3, meaning it provides a visible-gap-equivalent isolation point when racked out.
Drawout integration and panel fit
Drawout mounting on a chassis, 4-pole, with a 115 mm connection pitch. The unit is 556 mm wide, 439 mm high, 403 mm deep — sized for standard MasterPact MTZ2 switchgear cubicles. IP30 front-face protection; pollution degree 3 rated, so it handles conductive dust environments in industrial switchrooms without derating creepage distances. Push-button control on the front, with a contact position indicator and visible-break confirmation when the drawout cassette is racked to the disconnected position. Mechanical durability is 20,000 cycles with periodic preventive maintenance; electrical durability is 500 cycles at 1150 V in AC-23A duty — that reflects the arc energy at this voltage and current, so plan maintenance intervals accordingly.