Switch disconnector for distribution — 2500 A, 1150 V, 105 kA making capacity
The Schneider Electric LV847275 is a MasterPact MTZ2 25 HA10 switch disconnector rated for 2500 A at 1150 V AC, 50/60 Hz, with a short-circuit making capacity (Icm) of 105 kA peak at that voltage. It is a 4-pole, fixed-mounted unit with push-button control and a visible contact position indicator, designed for distribution applications where isolation per EN/IEC 60947-3 is required. The 2500 A continuous rating and 105 kA making capacity mean this switch can handle full-load current for large distribution feeders while safely closing onto a bolted fault — critical for upstream service-entrance or main-tie applications where fault energy is highest.
Duty class and utilisation — AC-23A and AC-3
Rated in utilisation category AC-23A (switching of motor loads or other highly inductive loads) and AC-3 (squirrel-cage motors: starting, switching off during running). The AC-23A rating at 1150 V confirms it can handle the inrush and breaking demands of large motor circuits and transformer feeders, not just resistive loads. Electrical durability is listed at 500 cycles for AC-23A duty at 1150 V; mechanical durability is 20,000 cycles with periodic preventive maintenance per EN/IEC 60947-3. For high-cycle applications (frequent motor starting), factor the electrical endurance into maintenance planning.
Withstand and isolation ratings
Rated short-time withstand (Icw) is 50 kA for 1 s and 50 kA for 3 s, giving the switch the thermal capacity to ride through delayed-fault clearing without damage. Rated impulse withstand (Uimp) is 12 kV, and insulation voltage (Ui) is 1250 V — sufficient for 1150 V line-to-line systems with margin for switching transients.
Fixed-mount chassis, 537 mm wide × 352 mm high × 300 mm deep. Panel cutout and drill plan should follow the MasterPact MTZ2 fixed-mount template — verify against the existing backplate before committing the BOM.