IP rating Dust and water ingress protection rating (IP) This section is intended to provide a short overview and essentials of the IP classification only. For more details refer to IEC 60529 IP rating, format IPxy First number x Protection against ingress of solid objects Second number y Protection against ingress of water 0 No protection 0 No protection 1 Protection against objects 1 Vertically dripping water larger than 50 mm diameter 2 Protection against objects 2 Dripping water, 15° tilted larger than 12.5 mm diameter 3 Protection against objects 3 Spraying water larger than 2.5 mm diameter 4 Protection against objects 4 Splash water larger than 1.0 mm diameter 5 Protection against dust 5 Water jets (limited ingress, not harmful) 6 Protection against dust (dust-tight, no ingress) 6 Powerful water jets 7 Temporary immersion (test 1 m, 30 min.) 8 Continuous immersion (test to be agreed, but exceeding no. 7) 172
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