Ultimate Guide to IP Water Resistance Ratings | Polycase
https://www.polycase.com/techtalk/ip-rated-enclosures/ultimate-guide-to-ip-water-resistance-ratings.html
WEBJul 26, 2022 · A few examples include IP55 and IP67, although there are dozens of possible ratings. The two digits of every IP rating work as follows: The first digit is the solid ingress protection rating, which encompasses protection against accidental contact, dust, debris and any other solid materials, rated on an ascending scale of 0 to 6.
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