MasterPact MTZ2 10 HA10 — 1000 A Drawout Switch-Disconnector
The LV848756 is a Schneider Electric MasterPact MTZ2 10 HA10 switch-disconnector rated 1000 A continuous at 1150 V AC, 50/60 Hz, in a 4-pole drawout chassis mount. It carries AC-23A and AC-3 utilisation categories, meaning it handles motor switching (AC-3) and mixed resistive-inductive loads (AC-23A) up to that current. The drawout design lets you rack the unit out for isolation without disturbing the main bus connections — standard for switchgear where maintenance access or redundancy matters.
Withstand and Making Ratings — Selectivity Headroom
Rated short-time withstand current (Icw) is 50 kA for 1 s and also 50 kA for 3 s per EN/IEC 60947-3 — the 3 s window is unusual and gives coordination engineers more time-band selectivity margin downstream. Short-circuit making capacity (Icm) is 105 kA peak at 1150 V, so the switch can close onto a fault without welding contacts. Impulse withstand (Uimp) is 12 kV, and rated insulation voltage (Ui) is 1250 V — both confirm the air gaps and creepage are sized for 1.15 kV class distribution.
Integration Notes — Drawout Chassis, IP30, Pollution Degree 3
Mounts on a chassis (drawout cradle) with a 115 mm connection pitch — verify the cradle model matches the switchgear cubicle cutout. IP30 protection means the enclosure keeps out tools and small debris but is not sealed against moisture; install in a dry, indoor switchgear lineup. Mechanical durability is 25,000 cycles with periodic preventive maintenance; electrical durability is 500 cycles at full AC-23A rating (1150 V).