IP Rating (Ingress Protection)

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A two-digit number established by the International Electro Technical Commission, is used to provide an Ingress Protection rating to a piece of electronic equipment or to an enclosure for electronic equipment.

The protection class after EN60529 are indicated by short symbols that consist of the two code letters IP and a code numeral for the amount of the protection.

Example: IP65 (NEMA 4)
The two digits represent different forms of environmental influence:
 • The first digit represents protection against ingress of solid objects.
 • The second digit represents protection against ingress of liquids.

The larger the value of each digit, the greater the protection. As an example, a product rated IP54 would be better protected against environmental factors than another similar product rated as IP42.

IP Table
IP First Digit- Ingress of Solid Objects Second Digit - Ingress of Liquid
0 No protection No protection
1 Protected against solid objects over 50mm e.g. hands, large tools Protected against vertically falling drops of water or condensation.
2 Protected against solid objects over 12.5mm e.g. hands, large tools. Protected against falling drops of water, if the case is disposed up to 15 from vertical. 
3 Protected against solid objects over 2.5mm e.g. wire, small tools. Protected against sprays of water from any direction, even if the case is disposed up to 60from vertical. 
4 Protected against solid objects over 1.0mm e.g. wires. Protected against splash water from any direction. 
5 Limited protection against dust ingress.
(no harmful deposit)
Protected against low pressure water jets from any direction. Limited ingress permitted. 
6 Totally protected against dust ingress.  Protected against high pressure water jets from any direction. Limited ingress permitted. 
7 N/A  Protected against short periods of immersion in water. 
8 N/A  Protected against long, durable periods of immersion in water. 
9K N/A  Protected against close-range high pressure, high temperature spray downs. 

IP protection of the PIP:

A PIP in the standard PIP housing is generally IP51 protected. Higher IP protection level with the standard PIP housing (up to IP54) can be reached with good positioning / orientation of the PIP. In other special PIP-housings, like a MIL-housing up to IP67 protection is possible.

IP protection of the PANEL-PIP:

The PANEL-PIP is available in various housings. Those allow a protection level of up to all around IP65.

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