Fachwissen
Degree of protection (IP-code)
According to standard IEC 60529 and/or DIN EN 60529
The degree of protection was specified and divided into several classes, indicated in the following way:
IP 67 (IP = International Protection + 2 indices with class of protection (see following tables)
1. Index | Protection against access | Protection against foreign objects |
| 0 | non-protected | non-protected |
| 1 | with the back of a hand | solid foreign objects (diameter from 50 mm) |
| 2 | with a finger | solid foreign objects (diameter from 12,5 mm) |
| 3 | with a tool | solid foreign objects (diameter from 2,5 mm) |
| 4 | with a wire | solid foreign objects (diameter from 1 mm) |
| 5 | with a wire | dust-protected (intrusion of dust not totally |
| 6 | with a wire | dust-tight (no intrusion of dust) |
2. Index | Protection against ingress of water |
| 0 | non-protected |
| 1 | protected against water drops (vertical falling) |
| 2 | protected against water drops (drop angle up to 15°) |
| 3 | protected against spraying water (at an angle up to 60°) |
| 4 | protected against splashing water (from any direction) |
| 5 | protected against water jets (from any direction) |
| 6 | protected against powerful water jets (flooding) |
| 7 | protected against temporary immersion in water (intrusion of water causing harmful effects shall not be possible when the enclosure is immersed in water for 30 minutes in 1m depth) |
| 8 | protected against permanent immersion in water (intrusion of water causing harmful effects shall not be possible when the enclosure is continously immersed in water under conditions which shall be agreed between manufacturer and user but which are more severe than for numeral 7) |
| 9K | protected against water during high pressure- or stream cleaning (numeral acc. to DIN 40050 part 9, IP-code for verhicles) |
