IP Protection
This section is intended to provide a short overview and essentials of the classification only. For more details, refer to the latest original publication IEC 60529 (direct ordering or list of local sources via Internet www.iec.ch) .

IP Rating (IP XY)

First number X – protection against ingress of solid objects
Second number Y – protection against ingress of water
 
   
X First number   Y Second number
0 No protection   0
No protection
1 Protection against objects larger than 50 mm diameter  
1
Vertically dripping water
2 Protection against objects larger than 12.5 mm diameter  
2

Dripping water, 15° tilted

3 Protection against objects larger than 2.5 mm diameter   3

Spraying water

4

Protection against objects larger than 1.0 mm diameter

  4 Splash water
5 Protection against dust (limited ingress, not harmful)   5 Water jets
6 Protection against dust (dust-tight, no ingress)   6 Powerful water jets
6 Protection against dust (dust-tight, no ingress)   7 Temporary immersion (test 1 m, 30 min.)
6 Protection against dust (dust-tight, no ingress)   8 Continious immersion (test to be agreed, but exceeding no. 7)