A two-digit number (as specified in EN 60529) is used to provide
an IP Rating to a piece of electronic equipment or to an enclosure
for electronic equipment.
The first digit represents protection against ingress of solid
objects
The second digit represents protection against ingress of liquids
The larger the value of each digit, the greater the protection
from that influence. As an example, a product rated as IP57 would
be better protected against environmental factors than another similar
product that was only rated as IP43.
| 0 |
No protection
|
No protection |
| 1 |
Protected against solid
objects over 50mm e.g. hands, large tools. |
Protected against vertically
falling drops of water. |
| 2 |
Protected against solid
objects over 12mm e.g. hands, large tools.
|
Protected against direct
sprays of water up to 15° from vertical. |
| 3 |
Protected against solid
objects over 2.5mm e.g.wire, small tools. |
Protected against direct
sprays of water up to 60° from vertical. |
| 4 |
Protected against solid
objects over 1.0mm e.g. wires. |
Protected against water
sprayed from any direction. Limited ingress permitted. |
| 5 |
Limited protection
against dust ingress (no harmful deposit) |
Protected against low
pressure water jets from any direction. Limited ingress permitted. |
| 6 |
Totally protected against
dust ingress. |
Protected against high
pressure water jets from any direction. Limited ingress permitted. |
| 7 |
|
Protected against immersion
between 15cm and 1M. |
| 8 |
|
Protected against long
periods of immersion under pressure. |
