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Switchgear

Power-Zone 4 Arc Resistant

Low voltage metal-enclosed, drawout switchgear designed to contain the effects of arc flash events inside the gear per ANSI/IEEE standard C37.20.7.

Part of Set Series

This arc resistant solution features the proven reliability and durability of Masterpact NW power circuit breakers with a unique combination of arc flash mitigation features and upgraded arc flash containment, providing superior protection from the consequences of internal arcing faults.

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Power-Zone 4 Arc Resistant
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  • Features



    >Arc flash energy containment occurs on the front, back, and sides, even when the instrument compartment door is open, complying with ANSI Type 2B rating. This simple, stand-alone circuit breaker solution is a space saving design that offers an additional level of protection for personnel. Plus, Power-Zone 4 Switchgear features simple installation and reduced maintenance and inspection requirements.



    Standard Features

    • Industry leading withstand rating of 100 kA @ 635 VAC
    • Patented Masterpact ArcBlok technology for superior arc flash protection
    • NEMA Type 1 enclosure with ANSI Type 2B rating
    • 60" deep and 22" wide design allows for the smallest footprint in the industry
    • Complete line of Masterpact NW Breakers available up to and including 5,000 A
    • Field interchangeable Micrologicâ„¢ trip units
    • Bus ratings up to and including 5,000 A
    • Enhanced ventilation system optimizes heat transfer

    Standards

    • UL® certified and tested in accordance with ANSI C37.20.7
    • ANSI C37.20.1, ANSI C37.51
    • Certified to Canadian Standard C22.2, No. 31
    • UL 1558
    • ANSI C37.13, ANSI C37.16
    • ANSI C37.17, ANSI C37.50
    • UL 1066

    Benefits

    Superior Arc Flash Protection
    • Masterpact NW ANSI Rated Power Circuit Breaker with ArcBlok arc extinguishing technology
    • Industry leading 100kA, 635V short circuit rating
    • Mitigates effects of arc flash energy via passive containment Low Maintenance Design
    • Does not relay on special door seals/vent flaps
    • Internal phase and ground insulated barriers limit propagation Space Efficient
    • Does not increase footprint
    • 60" Deep sections available
    • No minimum lineup width

    Applications

    Critical Facilities seeking to reduce the effects of arc explosions such as:
    • Oil & Gas
    • Mining & Metals
    • Water/Wastewater
    • Industrial Buildings
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