What is IP67 per IEC 60529

The International Electrotechnical Commission (IEC) 60529 standard defines a system for classifying the degrees of protection provided by electrical enclosures against intrusion from solid objects and liquids. In this article, we will explore the IP67 rating as defined by IEC 60529 and delve into its technical details.

Understanding the IP Code

The IP Code, also known as the Ingress Protection Code, consists of two digits following the letters "IP." The first digit represents the level of protection against solid particles, whereas the second digit indicates the level of protection against liquids. Let's focus on the number 7 in the IP67 rating and demystify its significance.

Protection Against Solids - Level 6

The first digit in the IP rating signifies the protection level against solid objects. A rating of 6 means the enclosure provides complete protection against dust, dirt, and other particulate matter. It ensures that no solid particle can penetrate the enclosure under specified test conditions. To achieve a level 6 rating, the enclosure undergoes stringent testing to confirm its ability to keep even the tiniest particles out.

Protection Against Liquids - Level 7

The second digit in the IP rating refers to the protection level against liquids. An IP7 rating guarantees the enclosure's ability to withstand the effects of immersion in water up to a depth of 1 meter for a duration not exceeding 30 minutes. This level of protection is crucial in applications where electronic devices might be exposed to water or other liquids, such as outdoor equipment, underwater cameras, or industrial machinery.

Applications and Considerations

Devices with an IP67 rating find applications in various industries, including automotive, marine, aerospace, and consumer electronics. It is worth noting that while an IP67-rated enclosure provides excellent protection against solid particles and temporary immersion in water, it might not be suitable for prolonged submersion or exposure to high-pressure water jets. Designers and engineers must consider the specific requirements of their application before choosing an appropriate encasement.

In conclusion, the IP67 rating per IEC 60529 denotes a robust level of protection against both solid objects and liquids. By understanding the system behind the IP Code and the significance of each digit, engineers can make informed decisions about selecting the most suitable enclosures for their electronic devices. Whether it's preventing dust intrusion or ensuring water resistance, the IP67 rating plays a crucial role in safeguarding equipment across numerous industries.