Technical Articles

How do you read an IP rating

Understanding the IP (Ingress Protection) rating is essential when it comes to selecting and assessing the durability of electronic devices. In this article, we will delve into the details of how to interpret an IP rating and what it means for the performance and protection level of a device.

Breaking down the IP rating

An IP rating consists of two numbers. The first number represents the level of protection against solid objects like dust and debris, while the second number indicates the degree of defense against water and liquids. Let's analyze each digit separately.

Decoding the first digit

The first digit in an IP rating ranges from 0 to 6, demonstrating various levels of protection against solid objects. A rating of 0 signifies no protection against any solid particles, making it suitable for indoor use only. On the other hand, a rating of 6 indicates complete protection against all types of dust and particulates, making the device suitable for even the harshest environments.

Cracking the second digit

The second digit in an IP rating ranges from 0 to 9 and denotes the level of protection against water and moisture. A rating of 0 implies no protection against liquid ingress, so the device should be kept away from any form of moisture. Conversely, a rating of 9 suggests that the device can withstand powerful jets of water without being affected, making it ideal for outdoor or industrial applications.


When looking at an IP rating, it's crucial to understand the significance of each digit. A higher number signifies greater protection. For instance, an IP67-rated device is more resistant to both solids and liquids compared to an IP65-rated one. By familiarizing yourself with IP ratings, you'll be able to make informed decisions and select devices that are suitable for your specific needs.



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