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Air-Insulated Primary Switchboard up to 27 kV

Medium voltage switchgear (AIS type) withdrawable circuit-breakers up to 27kV

  • Features

    • MASTERCLAD is a metal enclosure switchgear assembly that provides maximum user safety.
    • designed using proven techniques, high performance breaking devices, digital protection and control system
    • Performances:
      • Technology: Vacuum
      • - Standard: NEMA
      • - Rated voltage: 27kV
      • - Busbar system: Single
      • - Rated current busbar: 2000A
      • - Rated operational current: 2000A
      • - Rated peak withstand current: 40kA
    More information on Square D web site (link opposite)


    The reliability of a quality design

    • High level protection of people: each section is isolated from the others by earthed metal partitions, safety interlocking
    • Safety operation: simple use, safety system that prevents all unauthorised operation


    MASTERCLAD is present on all electrical distribution markets
    • Energy: HV/MV, MV/MV, MV section of MV/LV substation
    • Infrastructure: hospital, airports
    • Industries: petrochemicals, cement

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