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What are NEMA and IP ratings?

NEMA Ratings and IP Equivalency Chart

NEMA and IP have established a range of standards for electrical equipment enclosures. For more detailed and complete information, NEMA Standards Publication 250. You can reach the National Electrical Manufacturers Association at: http://www.nema.org/

NEMA =The National Electrical Manufacturers Association (NEMA)
IP=International Electrotechnical Commission

Stealth.com Inc (Stealth Computer) has embraced these NEMA industry standards to ensure higher quality products offering benchmark comparisons for our customers. Here is a list of the NEMA and IP standards that some of Stealth's products adhere to:

NEMA Rating IP Equivalent NEMA Definition IP Definition
(1st Number)
IP Definition
(2nd Number)
1 IP10 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 1 = Protected against solid foreign objects of 50mm in diameter and greater 0 = Not Protected
2 IP11 Enclosures constructed for indoor used 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 1 = Protected against solid foreign objects of 50mm in diameter and greater 1 = Protected against vertically falling water drops
3 IP54 Enclosures constructed for either indoor or outdoor used to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to proved a degree of protection against falling dirt, rain, sleet, snow, and windblown dust; and that will undamaged by external formation of ice on the enclosure 5 = Protected against dust - Limited to ingress (no harmful deposit) 4 = Protected against water sprayed from all directions - Limited to ingress permitted.
3R IP14 Enclosures constructed for either indoor or outdoor used to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt, rain, sleet, and snow; and that will be undamaged by external formation of ice on the enclosure 1 = Protected against vertically falling water drops 4 = Protected against water sprayed from all directions - Limited to ingress permitted.
3S IP54 Enclosures constructed for either indoor or outdoor 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, rain, sleet, snow, and windblown dust; and in which the external mechanism(s) remain operable when ice laden. 5 = Protected against dust - Limited to ingress (no harmful deposit) 4 = Protected against water sprayed from all directions - Limited to ingress permitted.
4 IP 56 Enclosures constructed for either indoor or outdoor 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, rain, sleet, snow, windblown dust, splashing water, and hose-directed water; and that will be undamaged by the external formation of ice on the enclosure 5 = Protected against dust - Limited to ingress (no harmful deposit) 6 = Protected against strong jets of water from all directions - Limited to ingress permitted.
4X IP56 Enclosures constructed for either indoor or outdoor 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, rain, sleet, snow, windblown dust, splashing water, hose-directed water, and corrosion; and that will be undamaged by thee external formation of ice on the enclosure 5 = Protected against dust - Limited to ingress (no harmful deposit) 6 = Protected against strong jets of water from all directions - Limited to ingress permitted.
5 IP52 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; against settling airborne dust, lint, fibers, and flyings; and to provide a degree of protection against dripping and light splashing of liquids. 5 = Protected against dust - Limited to ingress (no harmful deposit) 2 = Protected against direct sprays of water up to 15° from the vertical.
6 IP67 Enclosures constructed for either indoor or outdoor 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; against hose-directed water and the entry of water during occasional temporary submersion at a limited depth; and that will be undamaged by the external formation of ice on the enclosure. 6 = Totally protected against dust 7 = Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes.
6P IP67 Enclosures constructed for either indoor or outdoor use to provide a degree of protection to the personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt; against hose-directed water and the entry of water during prolonged submersion at a limited depth; and that will be undamaged by the external formation of ice on the enclosure 6 = Totally protected against dust 7 = Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes.
12 and 12K IP52 Enclosures constructed (without knockouts) 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; against circulating dust, lint, fibers, and flying; and against dripping and light splashing of liquids 5 = Protected against dust - Limited to ingress (no harmful deposit) 2 = Protected against direct sprays of water up to 15° from the vertical.
13 IP54 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; against circulating dust, lint, fibers, and flyings; and against the spraying, splashing, and seepage of water, oil, and noncorrosive coolants. 5 = Protected against dust - Limited to ingress (no harmful deposit) 4 = Protected against water sprayed from all directions - Limited to ingress permitted.
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