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Dimensions in millimeters
Construction and meaning of the IP (Ingress Protection) Code
The specification of a degree of protection for protection against access and foreign object includes all lower degrees of protection.
The degrees of protection 1 to 6K for protection against water include all the lower degrees of protection. Due to different physical affects, this does not automatically have to apply to water protection grades 7, 8 and 9K.
Ingress Protection: Overview of the Elements of the IP Code
Element |
Numeral/ Letter |
Meaning for the protection of electrical equipment |
Meaning for the protection of persons |
| First characteristic numeral/ supplementary letter |
|
Against the ingress of solid foreign objects (including dust):
|
Against access to hazardous parts(unless described by extra letters):
|
| |
0
1
2
3
4
5K
6K |
not protected
with Ø ≥ 50mm
with Ø ≥ 50mm
with Ø ≥ 50mm
with Ø ≥ 50mm
dust-protected
dust-tight |
not protected
with back of hand
with finger
with tool
with wire
with wire
with wire |
| Second characteristic numeral/ supplementary letter |
0
1
2
3
4
4K
5
6
6K
7
8
9K |
Against the ingress of water:
Not protected
Vertical dripping
Dripping (inclined 15°)
Spraying
Splashing
Same with increased pressure
Jetting
Powerful jetting
Same at increased pressure
Temporary immersion
Continuous immersion
High-pressure/steam jet cleaning |
| Additional letter (optional) |
A
B
C
D |
Meaning for the protection of electrical equipment |
Against access to hazardous parts (unless described by first characteristic numeral):
with back of hand
with finger
with tool
with wire |
Supplementary letter (optional) |
M |
Movement of moving parts during water test
|
| S |
Standstill of moving parts during water test |
| K |
Specifically for the electrical equipment in road vehicles |
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