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IP protection

Devices that may not be used in all environmental conditions are classified as so-called IP protection classes (IP = International Protection), in German International Protection Types and labeled as follows.

The designation follows the following scheme: IP XXXX

The letters IP stand for protection class and the XXXX are replaced as follows:

1st digit: contact protection / foreign body protection
2nd place: water protection
3rd digit: additional contact protection
4th digit: Supplementary letters

(the 3rd and 4th places do not necessarily have to be specified)
If the 1st or 2nd digits are not important for the marking, it will be replaced by an X.

 


Codes for contact protection (1st position)

IP 0X Neither contact protection nor foreign body protection
IP 1X back protection
Protection against foreign bodies with a diameter> 50mm
IP 2X Keep away from fingers
Protection against foreign bodies> 12mm diameter
IP 3X protection against touching with tools
(Specimen: 12mm diameter, 100mm long)
Protection against foreign bodies with a diameter> 2.5mm
IP 4X Keep away from tools, etc.
Protection against foreign bodies> 1mm in diameter
IP 5X Complete contact protection
Protection against harmful dust deposits inside
IP 6X Complete contact protection
Protection against dust ingress (dustproof)

 

 

Codes for water protection (2nd place)

IP X0 Not protected against water penetration
IP X1 Protected against vertically falling dripping water
IP X2 Protected against sloping dripping water
(15 ° opposite the vertical)
IP X3 Protected against water spray
(up to 60 ° with respect to the vertical)
IP X4 Protected against water spra
IP X5 Protected against water jets
(from all directions)
IP X6 Protected against ingress of water during temporary flooding
IP X7 Protected against water penetration during immersion
IP X8 Protected against ingress of water when immersed indefinitely
IP X9 K Protected against penetrating water from any direction, even at high pressure against the housing.
(High-pressure / steam jet cleaner, 80-100 bar)

 

 

Code letters for the (3rd position)

A Back protection or objects with a diameter> 50mmm
B Finger protection against fingers with diameter> 12mm and up to 80mm length
C tool protection against tools with diameter> 2.5mm and up to 100mm length
D Wire protection against wires with diameter> 1mm
and up to 100mm in length

 

 

Code letters for the (4th position)

H high-voltage operation in MID-
M Tested when moving parts are in operation
S Checked when moving parts are at a standstill
W Tested under specified weather conditions

 

 

Attached is a list of common IP protection classes / IP protection classes

IP30 protection classes IP 30
protected against solid foreign bodies larger than 2.5 mm, but unprotected against moisture
IP40 protection classes IP 40
protected against solid foreign bodies larger than 1.0 mm, but unprotected against moisture
IP50 protection classes IP 50
Dust-proof (penetration of dust not excluded), but unprotected against moisture
IP54 protection classes IP 54
protected against dust (penetration of dust not excluded) and protected against splashing water (from all direction
IP65 protection classes IP 65
Dustproof (no dust penetration) and protected against water jets (from all directions)
IP66 protection classes IP 66
Dustproof (no dust ingress) and protected against heavy seas
IP67 protection classes IP 67
Dustproof (no dust penetration) and protected against immersion (with indication of pressure and time)