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Masterpact NW

From 800 to 6300 A high current air circuit-breaker

From 800 to 6300 A high current air circuit-breaker

Masterpact NW
  • Features

    • Nominal current:800 to 6300 A
    • Breaking performance:42 to 150 kA at 220/415 V AC
    • Voltage rating:up to 690 V
    • 2 physical sizes from 800 to 6300 A
    • A single pole pitch of 115 mm
    • 3 and 4-pole versions
    • 4 Micrologic control units enriched by measurement, energy management and network analysis functions
    •  Earth leakage protection built into electronic protection Wide range of common auxiliaries and accessories interchangeable on site
    • Compliance with international standards IEC 60947-1 and 2, IEC 68230 for type 2 tropicalisation, UL489, ANSI and CCC
    • Compliance with specifications of marine classification companies: Bureau Veritas, Lloyd’s Register of Shipping, Det Norske Veritas, etc.


    No otheroffer will overshadow them The Masterpact NW circuit-breaker range is characterised by its optimised dimensions: not only are volumes reduced, but, even more, two sizes are sufficient to cover needs from 4000 to 6300 A. Aiming at standardising electrical switchboards at a time when installations are increasingly complex, Masterpact NW provides an unequalled simplicity, both concerning choice and installation.


    Protection, measurement and communication of LV electrical networks and in particular:
    • Motor protection
    • Generator protection

    Specific applications:
    • DC networks
    • Protection of installations in highly corrosive industrial environments
    • Tunnels (1000 V)
    • Air bases (400 Hz)
    • Military marine
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