The first digit | Importance for device protection against the ingress of foreign bodies | The second digit | Importance for device protection against the ingress of water and its harmful effects |
0 | without protection | 0 | without protection |
1 | diameter 50 mm | 1 | dripping |
2 | diameter 12,5 mm | 2 | dripping (with 15 ° deflection) |
3 | diameter 2,5 mm | 3 | sprayed |
4 | diameter 1,0 mm | 4 | pulverized |
5 | protection against dust | 5 | cast stream |
6 | dustproof | 6 | lcast a strong stream |
7 | brief immersion | ||
8 | continuous immersion |