  |
IP RATINGS |
IP ratings are a set of physical standards defined in IEC529 (BVSEN60529:1991). They relate to the protection which enclosures give against the ingress of particles or water. IP ratings are expressed as two digits (eg IP55). The first digit defines the level of protection against contact and particles, whilst the second digit defines the level of protection against water. |
|
| First digit | Protection against contact |
Protection against particles |
| 0 1 2 3 4 5 6 |
No
special protection with back of a hand with a finger with tools and wires etc >2.5mm thick with tools and wires etc >1mm thick complete protection complete protection |
No
special protection Large foreign bodies >50mm dia Medium foreign bodies >12.5mm dia Small foreign bodies >2.5mm dia Granular foreign bodies >1m dia Dust allowed but not affect function Dust proof |
| Second digit | Protection against water |
|
0
|
No
special protection dripping vertically dripping at an angle <15° from vertical spray <60° from vertical spray from all directions jets from a nozzle in all directions high pressure jets temporary immersion permanent immersion |
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