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    Enclosures Standard Includes Updated Evaluation and Testing Methods

  • Apr 07, 2021

    Enclosures for Electrical Equipment (1,000 Volts Maximum) covers enclosures for electrical equipment rated not more than 1000 V and intended to be installed and used for non-hazardous (unclassified) locations and hazardous (classified) locations. It provides protection classifications to the enclosed equipment against specific environmental conditions.

    Revisions include updated referenced Standards, updated tables in standardized formatting, and updated evaluation and testing methods.

    The primary audience for ANSI/NEMA 250 includes commercial products—enclosures, installers, designers, and integrators.

    The NEMA Building Infrastructure Division, as the secretariat of ANSI NEMA 250 Enclosures, is looking for industry experts specifically in the categories of “Users” and “General Interest” to participate in Standards development activities. Please contact NEMA at if you are interested and indicate your interest category and area of expertise.

    It is available on the NEMA Standards Store for US$170.


    August 17, 2021 to August 18, 2021
    September 29, 2021 to September 30, 2021
    November 02, 2021 to November 03, 2021
    May 04, 2022 to May 05, 2022
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