IP Rating – Ingress Protection – IPxya

Most of the time you can find devices with IP65 certified but also sometimes there is a letter at the end.
As I had search often to know what means what I’ve done now this table here:

No.Solids (1st Digit)Liquids (2nd Digit)
0no protectionno protection
1Protection from objects > 50mm
like a hand
Protection from vertically
dripping water
2Protection from objects > 12mm
like a finger
Protection from dripping water
when tilted to 15°
3Protection from objects > 2,5mm
like a cable
Protection from spraying water
up to 60° from its normal position
4Protection from objects > 1mm
like a nail or wire
Protection from splashing water
from any direction
5Dust protected
resistant to incidental dust
Protection from water jets
from any direction
6Dust tight
no ingress of dust
Water resistant against powerful jets
7Protection from immersion
up to 1m for a limited time
8Protection from continous immersion
beyond 1m
9Protection from close-range high presure
water jets

Optional letters at the end

LetterMeaning
DWire
FOil Resistant
HHigh Voltage Apparatus
MDevice is in motion
SDevice is standing still
WCertain weather conditions