This article breaks down the differences between IP54, IP55, IP65, IP66, and IP67, with insights into how each applies to real-world industry use. . As defined by international standard IEC 60529, an IP Rating classifies the degree of protection an enclosure provides against solid objects (such as hands and fingers), dust, accidental contact, and water. The second digit. . There are two main standards: NEMA (National Electrical Manufacturers Association) in the U. See the charts below for each standard's rating descriptions. It defines a specific level of defense against dust and water, based on the international standard IEC 60529.
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