This list of NEMA enclosure definitions is intended only as a basic guide to help individuals and are not guaranteed for exact definition accuracy. For a complete report for all exact NEMA definitions, contact the National Electrical Manufacturers Association and request a formal report.

Type 1

Intended for indoor use primarily to provide a degree of protection against (hand) contact with enclosed equipment. Usually, a low cost enclosure but suitable for clean and dry environments.

Type 2

Intended for indoor use primarily to provide a degree of protection against limited amounts of falling dirt and water.

Type 3

Intended for indoor use primarily to provide a degree of protection against windblown dust, rain, and sleet; undamaged by ice which forms on the enclosure.

Type 3R

Intended for indoor use primarily to provide a degree of protection against falling rain and sleet; undamaged by ice which forms on the enclosure.

Type 4

Intended for indoor use primarily to provide a degree of against windblown dust and rain, splashing water, and hose directed water; undamaged by ice which forms on the enclosure.

Type 4X

Intended for indoor or outdoor use primarily to provide a degree of protection against corrosion, windblown dust and rain, splashing water, and hose directed water; undamaged by ice which forms on the enclosure.

Type 6

Intended for indoor or outdoors which occasional temporary submersion is enclosed.

Type 6P

Intended for indoor or outdoors which occasional prolonged submersion is encountered. Corrosion protection.

Type 12

Intended for indoor use to provide a degree of protection against dust, falling dirt, and dripping non-corrosive liquids.

Type 13

Intended for indoor use primarily to provide a degree of protection dust, spraying of water, oil, and non-corrosive coolant.

There are more types carrying into explosion proof