Ingress protection class of enclosures is given in the form of IP classification,a two digit coding which is shown below.APT
has tested the enclosures according to GB 4208.
| First digit |
Protection against solid objects |
Second digit |
Protection against liquids |
| 0 |
no protection
|
0 |
no protection |
| 1 |
protected against solid objects up to 50mm |
1 |
protected against vertically falling drops of water |
| 2 |
protected against solid objects up to 12mm |
2 |
protected against direct sprays of water up to 15 from the vertical |
| 3 |
protected against solid objects up to 2.5 |
3 |
protected against direct sprays of water up to 60 from the vertical |
| 4 |
protected against solid objects up to 1.2mmmm |
4 |
protected against water sprayed from all dierections-limited ingress permitted |
| 5 |
protected against dust-limited ingress permitted
(no harmful deposit) |
5 |
protected against strong jets of water ,limited ingress permitted |
| 6 |
totally protected against dust |
6 |
protected against low pressure jets of water ,limited ingress permitted |
| |
|
7 |
protected against the effects of immersion between 15cm and 1cm |
| |
|
8 |
protected against long periods of immersion under water |
The following list of benefits and drawbacks indicates the basic differences between the various APT enclosures materials.
