Nema Electrical Enclosures Ratings

Nema enclosures manufactures nema 3r enclosures for housing power distribution lighting contractors switch gear and other electrical components that need to be protected in an outdoor environment.
Nema electrical enclosures ratings. At nema enclosures our knowledge and experience in nema rated enclosures is so extensive it s in our name. Call nemaco if you have any additional technical questions about electrical enclosures. Our adherence to ul 508a standards will give you a quality weatherproof enclosure resistant to rain ice and snow. Each is rated to protect against personal access to hazardous parts and additional type dependent designated environmental conditions.
There are various nema enclosure ratings defined for various electrical enclosures. The national electrical manufacturers association nema defines standards used in north america for various grades of electrical enclosures typically used in industrial applications. Nema enclosures and ratings can be quite confusing if you don t know what you re looking for when researching or purchasing an electrical component. Nema ratings for enclosures.
In the electrical world nema stands for national electrical manufacturers association an association of us based equipment manufacturers that produce standards used by many equipment manufacturers. The national electrical manufacturer association nema uses a standard rating system that defines the types of environments in which an electrical enclosure can be used and frequently signifies a fixed enclosure s ability to withstand certain environmental. The national electrical manufacturers association nema is a us manufacturers organization which actively promotes standardized product specifications for electrical apparatus. We offers designs that adhere to 6 different nema enclosures ratings.
Choosing the wrong nema enclosure type can result in a financial loss if the rating is too high or premature failure of the component or possible safety hazards if the rating is too low. General purpose enclosures 1 800 633 0405 what do the nema ratings mean. 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. Nema enclosure ratings define where an enclosure was designed to be used and the level of protection it was designed to provide.
An electrical enclosure refers to a cabinet or box that contains electrical components like switches knobs as well as controls and the like ostensibly to offer them protection against the environment while safeguarding life and property. Nema rating ip equivalent nema definition protection against solids protection against liquids. A typical nema enclosure might be rated to provide protection against. Each of these ratings indicate different levels of protection against ingress of solids and liquids.