1. Kyland-USA / DYMEC INGRESS PROTECTION RATINGS EXPLAINED. Copyright © KUSA, LLC. All rights reserved.

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4. What are IP Or Ingress Protection Ratings?

5. IP Protection Class What Does It Really Mean? The term Ingress “Protection Class” generally indicates the type of protection of a device or the internal workings of a device against direct contact and against the infiltration of foreign bodies, such as objects, dust or water

6. IP Protection Designation Explained A two-digit number established by the International Electro Technical Commission, is used to provide an Ingress Protection rating to a piece of electronic equipment or to an enclosure for electronic equipment. The protection class after EN60529 are indicated by short symbols that consist of the two code letters IP and a code numeral for the amount of the protection. Example: IP65 (NEMA 4) The two digits represent different forms of environmental influence: The first digit represents protection against ingress of solid objects. The second digit represents protection against ingress of liquids. The larger the value of each digit, the greater the protection. As an example, a product rated IP54 would be better protected against environmental factors than another similar product rated as IP42.

7. Approval Types APPROVAL TYPES The most commonly used protection methods are IP and NEMA, whereas: IP Classification – addresses the European market NEMA Classification – addresses the American market The European method of Ingress Protection is based upon IEC60529 and designates different IP levels: Dust (first digit): 1 to 6 Water (second digit): 1 to 8

8. NEMA Definition The North American Ingress Protection method is based upon NEMA Standard 250. These standards are the basis for the North American for non- hazardous Enclosure Types: 1, 2, 3, 3R, 3S, 4,4X, 5, 6, 6P, 12, 12K and 13. Hazardous area enclosures types will be marked as 7,8,9,10 whereas Type 7 and 10 enclosures are designed to contain an internal explosion without causing an external hazard. Type 8 enclosures are designed to prevent combustion through the use of oil-immersed equipment. Type 9 enclosures are designed to prevent the ignition of combustible dust

9. IP Classification Definition The IP (Ingress Protection) standard (IEC Publication 60529) is a classification of degrees of protection provided by the environment for the electrical equipment. The IEC designation consists of the letters IP followed by two numerals. The first characteristic numeral indicates the degree of protection provided by the environment with respect to persons and solid foreign objects entering the environment. The second characteristic numeral indicates the degree of protection provided by the environment with respect to the harmful ingress of water. The following table summarizes the types of environment and a general definition for these types.

10. IP Classification Digit Definitions 1 st DigitDefinition2 nd DigitDefinition 0Non-Protected0 1Protected Against the penetration of solid objects of 50mm and more 1Against Vertical Dripping Water 2Protected Against the penetration of solid objects of 12.5mm and more 2Protected Against Dripping Water 3Protected Against the penetration of solid objects of 2.5mm and more 3Protected Against Spraying Water 4Protected Against the penetration of solid objects of 50mm and more 4Protected Against Splash Water 5Protected Against the penetration of solid objects of 1mm and more 5Protected Against Water Jets 6Totally Protected Against Dust Ingress6Protected Against Powerful Water Jets 7Protected Against Brief Submersion in Water 8Protected Against Continuous Submersion in Water 9KProtected Against Water from High Pressure and Steam Jet Cleaning

11. IP Classifications Third Digit Definitions 0No Protection 1Protects against impact of 0.225 joule (e.g. 150 g weight falling from 15 cm height). 2Protects against impact of 0.375 joule (e.g. 250 g weight falling from 15 cm height). 3Protects against impact of 0.5 joule (e.g. 250 g weight falling from 20 cm height). 4Protects against impact of 2.0 joule (e.g. 500 g weight falling from 40 cm height). 5Protects against impact of 6.0 joule (e.g. 1.5 kg weight falling from 40cm height). 6Protects against impact of 20.0 joule (e.g. 5 kg weight falling from 40 cm height). IP Third number - Protection against mechanical impacts (commonly omitted, the third number is not a part of IEC 60529)

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