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    Masterpact NW

    High current air circuit breakers from 800 to 6300 A

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    Masterpact NW
    • Features

      • Nominal current: 800 to 6300 A
      • Breaking performance: 42 to 150 kA at 220/415 V AC
      • Voltage rating: up to 1000 V
      • 2 physical sizes from 800 to 6300 A
      • 2 pole pitches of 115 and 230 mm
      • 3- and 4-pole versions
      • 5 types of Micro-logic control units with added measurement, energy-management and network-analysis functions
      • Earth leakage protection built into the control unit
      • Wide range of common auxiliaries and accessories interchangeable on site
      • Compliance with international standards IEC 60947-1 and 2, IEC 68230 for type 2 tropicalization, UL489 and ANSI/UL1066
      • CCC and GOST certifications
      • Compliance with specifications of marine classification bodies: Bureau Veritas, Lloyd’s Register of Shipping, Det Norske Veritas, etc.
         


      Micrologic control unit specifications:

      • 4 levels of protection against overloads and short circuits: 2.0 (LI), 5.0(LSI), 6.0(LSIG), 7.0 (LSIV, built-in earth leakage protection)
      • 4 types of measurement: A (Ammeter), E (Energy), P (Power), and H (Harmonics)
      • Energy reduction maintenance setting (ERMS) function available for arc flash protection for Micrologic P and Micrologic H
      • Measurement accuracy: Class 0.5 for voltage, Class 1.5 for current, and Class 2 for active power and energy
      • Compatible with both Ethernet and Modbus SL protocol
      • Operating assistance to diagnose tripping cause and maintenance information

      Benefits

      The worldwide benchmark for high-current circuit-breakers
      The Masterpact NW circuit-breaker range features optimized dimensions: not only is it more compact, but even better two sizes are sufficient to cover requirements from 4000 to 6300 A.
      At a time when installations are becoming increasingly complex, Masterpact NW enables standardization of electrical switchboards by providing unrivaled simplicity in terms of both choice and installation.

      Applications

      General Applications

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

      Special applications

      • DC networks
      • Protection of installations in highly corrosive industrial environments
      • Mines (special 1000V version of NW)
      • Navy
      • Earthing switch
      • High short-circuit current limiting (ultra-rapid Masterpact UR)