Explanation of IP Ratings.
For example IP 67 would be: Totally protected against ingress of dust & protected against the
effects of immersion between 15cm and 1m.
First Numeral
Second Numeral
Protection against ingress of solid foreign
objects.
Protection against harmful ingress of water
IP Requirements
Example
IP Requirements
0 No protection
0 No protection
Full penetration of 50mm
diameter sphere not
allowed
and shall have adequate
1
clearance from hazardous
parts. Contact with
hazardous
parts not permitted.
Protected against vertically
1 falling drops of water.
Limited ingress permitted.
Full penetration of 12.5mm
diameter sphere not
allowed.
2
The jointed finger shall
have adequate clearance
from hazardous parts.
The access probe of
3 2.5mm diameter
shall not penetrate.
The access probe of
4 1.0mm diameter shall
not penetrate.
Limited ingress of dust
5 permitted (no harmful
deposit).
Totally protected against
6
ingress of dust.
Protected against vertically
falling drops of water with
2 enclosure tilted 15º from
the vertical. Limited
ingress permitted.
Protected against sprays
3 to 60º from the vertical
- limited ingress permitted.
Protected against water
splashed from all directions
4
limited ingress permitted.
Protected against lowpressure jets of water
5
from all directions limited ingress permitted.
6
Protected against
strong jets of water.
Protected against the
7 effects of immersion
between 15cm and 1m.
Protected against longer
8 periods of immersion under
pressure.
Example