What is an IP Rating (Ingress Protection)?

IP rating is also known as Ingress Protection or International Protection ratings which are defined to the international standard of EN 60529 (British BS EN 60529:1992). This standard is used to define the levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies such as tools, dirt and moisture.  

What do the two digits in an IP Rating mean?

The rating consists of the letters IP followed by two digits, if a number is replaced by X this indicates that the enclosure is not rated for that specification. 

 Example: IP65

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.

What IP Rating Shall I Choose?

If you don’t anticipate a harsh environment that is extremely dusty or wet then a lower IP rating would suffice.

In places that will have a lot of dust, debris, or potential to be in contact with any solids or liquids, you’ll want to make sure that the IP ratings are high and that you have adequate water resistant or waterproof coatings around your environment.

We are a professional manufacturer of waterproof telephones. We can provide you with analog and ip versions. We can also customize the telephone according to your needs. Our phones could reach the waterproof defend grade  to IP66，IP67 even IP68 . You can use our phones in industrial, outdoor, nuclear power and chemical industries.