Understanding IP Ratings

What is an IP Rating?

IP stands for Ingress Protection.  An IP rating describes the protection a fitting or device has from the intrusion of Solid and Liquid material. 

The letters, IP, are always followed by two numbers.  Each number represents a further individual rating. The first number represents Solids such as small tools, fingers and dust.  The second number represents Liquids such as water droplets, spray and condensation. 

 For example: 

• An IP44 rated fitting would be used in an area that might get sprayed or rained on such as an outdoor light fitting or a bathroom light fitting. 

• An IP68 rated fitting or device would allow the item to be fully submerged in water such as washable keyboards, mice and rugged phones. 

Why is it important to me? 

By understanding what IPXX means, a purchaser can choose a device based on the end-use requirements. A mining company may look for devices that totally protects against dust whereas a Healthcare facility may look for devices that can be easily cleaned and able to handle water and heavy cleaning. Someone in the general public will not need this same level of protection.  

IP Numbers

Examples of HPA products with IP ratings