NEMA Enclosure Ratings and IP Equivalents

NEMA Ratings /IP Conversion Chart

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

Knowing if your need is for an indoor or outdoor application can save time and money instead of retooling a project down the road.

If you need any help or have questions, contact Fibox today and speak with an Enclosure specialist today.

 

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, provide some protection against falling dirt, and 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 are constructed for 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, snow, and windblown dust; and that will undamaged by the external formation of ice on the enclosure. 5 = Protected against dust -limited ingress permitted. 4 = Protected against water sprayed from all directions – limited ingress permitted.
3R IP14 NEMA 3R enclosures are 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 the external formation of ice on the enclosure 1 = Protected against vertically falling water drops. 4 = Protected against water sprayed from all directions – limited ingress permitted.
3S IP54 NEMA 3S enclosures are 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 ingress permitted  (no harmful deposit). 4 = Protected against water sprayed from all directions – limited ingress permitted.
4 IP66 NEMA 4 enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment. NEMA 4X enclosures also provide a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, and hose-directed water. 6 = Totally protected against dust. 6 = Protected against strong jets of water from all directions – limited ingress permitted.
4X IP66 NEMA 4 X enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment. NEMA 4X enclosures also provide a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hose-directed water, and corrosion. 6 = Totally protected against dust. 6 = Protected against strong jets of water from all directions – limited  ingress permitted.
5 IP52 NEMA 5 enclosures are 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 flying debris; and to provide a degree of protection against dripping and light splashing of liquids. 5 = Protected against dust – limited 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 15 cm 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 15 cm 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 debris; and against dripping and light splashing of liquids 5 = Protected against dust – limited 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 flying debris; and against the spraying, splashing, and seepage of water, oil, and noncorrosive coolants. 5 = Protected against dust – limited ingress (no harmful deposit). 4 = Protected against water sprayed from all directions – limited ingress permitted.