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The purpose of this document is to provide general information on the definitions of
NEMA Enclosure Types to architects, engineers, installers, inspectors and other
interested parties. [For more detailed and complete information, NEMA Standards
Publication 250-2003, “Enclosures for Electrical Equipment (1000 Volts Maximum)”
should be consulted. This Standards Publication as well as all other NEMA publications
are available from IHS @ 800 854-7179 or http://www.global.ihs.com]