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      1. NEMA
      2. Directory
      3. Member Products
      4. Enclosures

      Enclosures

      An electrical enclosure is a cabinet or box that protects electrical or electronic equipment and prevents electrical shock. Enclosures are usually made from rigid plastics or such metals as steel, stainless steel, or aluminum. Enclosures are rated to designate protection against hazardous, non-hazardous, and other specific environmental conditions.

      Enclosures protect electrical equipment in diverse building, industrial, and utility applications. They may also shield equipment from electromagnetic and radio frequency interference. Enclosures are often used to protect the following types of equipment:

      • Circuit breakers, contactors, control panels, and switches
      • Distribution boards and panelboards
      • Pressurization and purging equipment and systems
      • Telephone cabinets

      Since enclosures must be installed in accordance with the National Electrical Code® (NEC) and all applicable local regulations, Members develop proposals for the NEC, International Code Council codes, and other codes.

      Staff Contact: Kezhen Shen

      Enclosures-productIMG-300x265
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      • Maintains the Standard NEMA 250 Enclosures for Electrical Equipment (1,000 Volts Maximum) and related technical documents and guidelines
      • Develops industry input used in the development of U.S. positions on International Electrotechnical Commission (IEC) Standards; the international equivalent of the NEC is IEC 60364
      • Administratively supports the U.S. National Committee Technical Advisory Group to IEC TC70 (Degrees of protection provided by enclosures) and actively works with entities in Canada, Mexico, and United States on regional Standards through CANENA (Council for Harmonization of Electrotechnical Standards of the Nations in the Americas)

      • Storm Reconstruction Toolkit
      • icpdfNEMA Enclosure Types
      • A Brief Comparison of NEMA 250 and IEC 60529
      • Guidelines for Handling Water Damaged Electrical Equipment
      • icpdfNEMA FAQs: Enclosures

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