MasterPact Switch Disconnectors

High current switch-disconnectors

MasterPact Switch disconnectors are used to break load currents up to their normal current rate. By carrying elements of a switch and features of a disconnector, a switch disconnector makes or breaks a circuit under heavy electric load conditions, ensuring optimum safety for low voltage electrical circuits, especially for machine control circuits.

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  • Nominal current:800 to 6300 A.

  • Voltage rating:690V.

  • Categories:AC23A /AC3.

  • 3 and 4-pole versions.

  • high performance making capacity and short-time withstand current.

  • Additional functions for safety, remote control and comfort:MN/MX auxiliary trip units, XF closing, remote control, source changeover .

  • Wide range of common auxiliaries and accessories interchangeable on site.

  • Compliance with international standards IEC 60947-3 and Annex A.

  • Compliance with specifications of marine classification companies:Bureau Veritas, Lloyd’s Register of Shipping, Det Norske Veritas, etc.


The Masterpact NW circuit-breaker range is characterised by its optimised dimensions and its high performances. Aiming at standardising electrical switchboards at a time when installations are increasingly complex, Masterpact provides an unequalled simplicity, both concerning choice and installation..


The Masterpact switch-disconnectors perform control and disconnection of high current electrical distribution circuits:

  • Source coupling.

  • Distribution.

  • Source changeover.

  • Disconnection.

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