NEMA Enclosure Ratings and IP Equivalency

NEMA Ratings /IP Equivalency Chart

Fibox understands that today’s business is global and understanding the IP ratings compared to NEMA, can come in handy, when selecting an NEMA Enclosure for your next project.

Knowing if your need is for an indoor or outdoor application can save time and money, as opposed to retooling a project down the road.

NEMA Rating IP Equivalent NEMA Definition IP Definition Protection from Liquids
1 IP10 Nema 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. 1 = Protected against solid objects 50mm in diameter and greater 0 = Not Protected
2 IP11 Nema 2 enclosures constructed for indoor used to provide a degree of protection to personnel against incidental contact with the enclosed equipment, and provide some protection against falling dirt, and to provide a little protection against dripping and light splashing of liquids 1 = Protected against solid objects 50mm in diameter and greater 1 = Protected against vertically falling water drops.
3 IP54 Nema 3 enclosures constructed for 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. 4 = Protected against water sprayed from all directions – Limited to ingress permitted.
3R IP14 Nem 3R 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 Nema 3S 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 IP66 Nema 4 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 6 = Totally protected against dust 6 = Protected against strong jets of water from all directions – Limited to ingress permitted.
4X IP66 Nema 4 X 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. 6 = Totally protected against dust 6 = Protected against strong jets of water from all directions – Limited to ingress permitted.
5 IP52 Nema 5 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 Nema 5 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 Nema 6P 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 Nema 12 & 12K 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 Nema 13 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.