Approved by NEMA Enclosures Section May 1998 Page 1 of 5 NEMA Enclosure Types 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 plete information, NEMA Standards Publication 250-1997, “ 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.] Definitions [ from NEMA 250-1997 ] In Non-Hazardous Locations , the specific enclosure Types, their applications, and the environmental conditions they are designed to protect against, pletely and properly installed , are as follows: Type 1- Enclosures constructed for indoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment and to provide a degree of protection against falling dirt. Type 2- Enclosures constructed for indoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment, to provide a degree of protection against falling dirt, and to provide a degree of protection against dripping and light splashing of liquids. Type 3- Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact wi
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