IP and IK protection ratings
The IP rating measures how well an enclosure is sealed against solids and liquids (EN 60529). The IK rating measures its resistance to mechanical impacts (EN 62262).
Reading an IP rating
The first digit refers to solids and dusts, the second to liquids.
| Rating | Solids | Liquids |
|---|---|---|
| IP54 | Dust-protected | Splashing water |
| IP65 | Dust-tight | Water jets |
| IP66 | Dust-tight | Powerful water jets |
| IP67 | Dust-tight | Temporary immersion |
Our Ex d and Ex e enclosures are rated IP66 (IP65 for the BAS-P control stations): they are suitable for outdoor installation.
IP and ATEX
For Ex e increased safety, the enclosure must provide at least IP54. In dust zones, dust-tightness (IP6X) is essential for Ex t protection by enclosure.
Impact resistance
ATEX standards require impact tests, for example 7 J for high mechanical risk and 4 J for low risk for a group II enclosure (EN/IEC 60079-0).