Level of protection from accidental contact and foreign matter (1st digit)
0
No protection
No protection
1
Protection from large body parts (diameter 50 mm)
Large foreign objects (diameter 50 mm or more)
2
Finger protection
(diameter 12 mm)
Medium-size foreign objects (diameter 12.5 mm or more, length up to 80 mm)
3
Tools and wires
(diameter 2.5 mm or more)
Small foreign objects (diameter 2.5 mm or more)
4
Tools and wires
(diameter 1 mm or more)
Granular foreign objects (diameter 1 mm or more)
5(K)
Wire protection (as IP 4) dustproof
Dust deposits
6(K)
Wire protection (as IP 4) dustproof
No dust ingress
Level of waterproofing (2nd digit)
0
No protection
1
Protection from vertically dripping water
2
Protection from diagonally dripping water (up to 15°)
3
Protection from water spray at up to 60° from vertical
4
Protection from all-round water spray
4K
Protection from all-round water spray at high pressure, applies to road vehicles only
5
Protection from water jets at any angle
6
Protection from streaming water (flooding)
6K
Protection from streaming water at high pressure (flooding), applies to road vehicles only
7
Protection from temporary submersion
8
Protection from continuous submersion
9K
Protection from water at high pressure / steam cleaning jets, applies to road vehicles only