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WHAT IS AN IP RATING?

An International Protection Marking, also known as IP Rating/Code, is the rating of a product’s ability to withstand liquid and dust intrusion. Defined by IEC/EN 60529, the standard was developed by the International Electrotechnical Commission and is recognized all over the world.

The IP rating system uses a 2-digit system to define its protection rating for all products. The first digit represents protection against solids and the second against liquids. The IP Code was designed to standardize protection ratings and limit misinterpretation/misrepresentation of a product's protection ability.

WHAT DO THE IP RATING NUMBERS MEAN?

 First Digit

The dust protection (first digit) can have a value from 1 to 6. As this number increases, the product's ability to withstand foreign objects/dust ingress increases. For example, a product that has a rating of IP2X can withstand foreign objects up to 12.5mm or greater in size, whereas an object with a rating of IP6X is dust tight. “X” is used to designate a specific area where the product has not been tested.

Second Digit

The liquid protection (second digit) follows the same format but can have a value from 1 to 9. As the number increases, protection from liquid ingress increases. Units with an IPX4 rating can withstand water spray for a continuous 5 minutes. As the chart indicates, there are specific angles, pressures, and volume requirements that must be followed during the test. The stringent testing procedure of the IP rating system ensures standardization between testing facilities around the world.

Extra Letters

Sometimes, there might be a letter at the end of the code IPXX. This is the supplementary letter, and it can be used to denote the supplementary information from the product standard. Please check out the chart below for more information:


Resources location

You can download  the bellow charts and images