An enclosure is a surrounding case constructed to provide a degree of protection to personnel against accidental contact with the enclosed equipment and to provide a degree of protection to the enclosed equipment against specified environmental conditions. A brief description of the more common types of enclosures used by the electrical industry relating to their environmental capabilities follows. Refer to NEMA Standards Publication for more information regarding applications, features and design tests. Individual NEMA Product Standards Publications or third party certification standards may contain additional requirements for product testing and performance.
Definitions Pertaining To Nonhazardous Locations