IP standards determine how well an enclosure can withstand dust and water. In this article, we explain what IP ratings mean, which IP value is dust-tight and how these standards are applied in industrial environments. So you know exactly what protection your application needs.
What is an IP rating?
The IP rating (Ingress Protection) indicates the extent to which an enclosure is protected against the ingress of solids and liquids. This international standard is widely used in industry, electrical engineering and mechanical engineering. An IP code always consists of two digits. The first digit stands for protection against dust and solid particles, the second for protection against water. The higher the digits, the better the protection.
What exactly does the IP list mean?
The IP list is an overview of all possible protection levels within the IP standard. Each digit has a fixed meaning and makes it easy to compare enclosures.
This system ensures clarity in design, production and application. Especially in environments where dust, moisture or cleaning plays a role, this classification is indispensable.
Which IP value is dust-tight?
An enclosure is fully dustproof at IP6X. This means that no dust particle can penetrate under test conditions.
Common dustproof classifications are:
➡️IP65: completely dust-proof and protected against water jets
➡️IP66: dustproof and resistant to powerful water jets
➡️IP67: dustproof and resistant to temporary immersion
For industrial applications, IP65 is often the minimum level, while IP67 is used for harsher conditions.
What is the IP classification for dust and water resistance?
The combination of the two figures determines the total protection. Some common combinations are:
➡️IP54: limited dust protection and splash-proof
➡️IP65: dustproof and resistant to water jets
➡️IP67: dustproof and suitable for temporary immersion
➡️IP68: dustproof and suitable for prolonged immersion
The right choice depends on the environment in which the enclosure will be used, such as production halls, outdoor applications or cleaning-sensitive areas.
Why are IP standards crucial in industrial enclosures?
Within industrial processes, enclosures protect sensitive components from failure, wear and tear and downtime. An incorrect IP classification can lead to damage, downtime or safety risks.
At Formit, we consider the desired IP value as early as the design phase. Consider material selection, seals and processing techniques such as welding and precision machining, which are essential for reliable sealing. Find out more on our page about welding.
How do we apply IP standards in custom enclosures?
We translate IP requirements into practical, manufacturable solutions. In doing so, we look not only at the standard, but also at practical application. Our experience in industrial custom production means we know how important details are. Seals, tolerances and construction ultimately determine whether an enclosure actually offers the desired protection. Our approach fits seamlessly into applications where reliability and durability are key.
Frequently asked questions on IP standards
Is IP65 always sufficient?
Not always. IP65 is suitable for many industrial environments, but submersion or intensive cleaning requires a higher rating.
Is IP67 better than IP66?
Not necessarily. IP66 better protects against powerful water jets, while IP67 is suitable for temporary immersion.
Are IP standards required by law?
IP standards are not legislation, but are often required within industry standards, tenders and safety guidelines.
Focus on security and sustainability
The right IP classification prevents problems and extends the lifetime of industrial systems. By choosing the right standard from the start, you avoid costly retrofitting.
Want to know which IP rating best suits your application or enclosure? Feel free to contact us and discover how we translate your technical challenge into a reliable solution.