The IP Protection Index
The IP Protection Index is an international standard. This index classifies the
level of protection offered by equipment against intrusions by solids (e.g. dust)
and liquids (e.g. water, oil).
How do you read the protection index?
Example: IP 67
The first number indicates protection against solid objects.
The second number indicates protection against liquids.
The IP 67 notation therefore corresponds to a completely dustproof product
that is protected against the effects of immersion in liquid.
Note: When a criterion has not been tested, the number is replaced by X
(e.g., IP X6 indicates that the product has not been tested for solids).
The second number indicates protection against liquids:
The first number indicates protection against solid objects:
X = Not measured
—
X = Not measured
—
0 = Not protected
—
0 = Not protected
—
1 = Protected against projection of solids ≥ 50 mm in
diameter
1 = Protected against vertically falling water drops
2 = Protected against projection of solids ≥ 12.5 mm in
diameter
2 = Protected against water drops (15° from vertical)
3 = Protected against projection of solids ≥ 2.5 mm in
diameter
3 = Protected against rain (60° from vertical)
4 = Protected against projection of solids ≥ 1 mm in
diameter
4 = Protected against sprayed water
5 = Protected against dust (limited ingress, no harmful
deposits)
5 = Protected against jets of water
6 = Completely protected against dust
6 = Protected against forc VgV