Frequently Asked Questions
Nema and IP Ratings
Eagan, MN
651-905-0900
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Frequently Asked Questions
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Contegra Inc Eagan, MN 651-905-0900 |
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Nema Type |
Intended use: |
| 1 |
Indoor use primarily to provide a degree of protection against (hand) contact with enclosed equipment. |
| 2 |
Indoor use primarily to provide a degree of protection against limited amounts of falling dirt and water. |
| 3 |
Outdoor use primarily to provide a degree of protection against windblown dust, rain, and sleet; undamaged by ice formation on the enclosure. |
| 3R |
Outdoor use primarily to provide a degree of protection against falling rain and sleet; undamaged by ice formation on the enclosure. |
| 4 |
Intended for indoor use primarily to provide a degree of protection against windblown dust and rain, splashing water, and hose directed water; undamaged by ice formation on the enclosure. |
| 4X |
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 formation on the enclosure. |
| 6 |
Indoor or outdoor where occasional temporary submersion is encountered. |
| 7 |
Indoor use in hazardous locations classified as Class I, Groups A, B, C or D per NEC. |
| 9 |
Indoor use in hazardous locations classified as Class II, Groups E, F or G per NEC. |
| 12 |
Indoor use to provide a degree of protection against dust, falling dirt, and dripping noncorrosive liquids. |
| 13 |
Indoor use primarily to provide a degree of protection dust, spraying of water, oil, and noncorrosive coolant. |
|
Number |
First Number Protection against solids |
Second Number Protection against liquids |
| 0 |
No Protection |
No Protection |
| 1 |
Protected against access with back of hand or objects over 50 mm |
Dripping vertically |
| 2 |
Protected against access with jointed finger or objects over12.5 mm |
Water dripping, enclosure tilted up to 15° |
| 3 |
Protected against access with a tool or objects 2.5mm |
Spraying water, up to 60° angle from vertical |
| 4 |
Protected against access with a wire orobjects over 1mm |
Splashing water, any direction |
| 5 |
Dust protected - limited ingress permitted |
Jetting water, any direction |
| 6 |
Dust tight |
Powerful jetting water, any direction |
| 7 |
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Temporary immersion in water from 15cm - 1m |
| 8 |
|
Continuous immersion in water under pressure |
The IP Rating has three numbers. The third number is often excluded.
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