IP·IK Ratings
IP 66/67 , IK 07/08 protection plastic enclosure
IP 66/67 , IK 09/10 protection aluminum enclosure
※ IEC(International Electrotechnical Commission) defines protection structure of electric instruments or protection boxes as follows.
| 1st Digit | Protection against solid | 2nd Digit | Protection against liquids | IK Code | Protection against mechanical impact |
|---|---|---|---|---|---|
| IP | TEST | IP | TEST | IK | TEST |
| 0 |  No protection |
0 |  No protection |
0 | No protection |
| 1 |  Protection against solid objects up to 50mm, e.g. accidental touch by hands. |
1 |  Protected against vertically falling drops of water. |
01 ~ 05 |
 Impact < 1 Joule |
| 2 |  Protection against solid objects up to 12mm, e.g. fingers. |
2 |  Protected against direct sprays of water up to 15 ° from the vertical. |
06 |  Impact = 1 joule |
| 3 |  Protection against solid objects over 2.5mm. (tools and wires) |
3 |  Protected against direct sprays of water up to 60° from the vertical. |
07 |  Impact = 2 joule |
| 4 |  Protection against solid objects over 1mm. (tools, wires and small wire) |
4 |  Protected against water sprays from all directions ㅡlimited ingress permitted. |
08 |  Impact = 5 joule |
| 5 |  Protection against dust limited ingress. |
5 |  Protected against low pressure jets of water from all directions ㅡ limited ingress permitted. |
09 |  Impact = 10 joule |
| 6 |  Totally protected against dust. |
6 |  Protected against strong pressure jets of water from all directions ㅡlimited ingress permitted. |
10 |  Impact = 20 joule |
| 7 |  Protected against the effects of temporary immersion between 15cm and 1m in water. |
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| 8 |  Protected against the effects of continuous immersion in water. |
| 1st Digit | Protection against solid |
|---|---|
| IP | TEST |
| 0 | No protection |
| 1 | Protection against solid objects up to 50mm, e.g. accidental touch by hands. |
| 2 | Protection against solid objects up to 12mm, e.g. fingers. |
| 3 | Protection against solid objects over 2.5mm. (tools and wires) |
| 4 | Protection against solid objects over 1mm. (tools, wires and small wire) |
| 5 | Protection against dust limited ingress. |
| 6 | Totally protected against dust. |
| 2nd Digit | Protection against liquids |
|---|---|
| IP | TEST |
| 0 | No protection |
| 1 | Protected against vertically falling drops of water. |
| 2 | Protected against direct sprays of water up to 15 ° from the vertical. |
| 3 | Protected against direct sprays of water up to 60° from the vertical. |
| 4 | Protected against water sprays from all directions ㅡlimited ingress permitted. |
| 5 | Protected against low pressure jets of water from all directions ㅡ limited ingress permitted. |
| 6 | Protected against strong pressure jets of water from all directions ㅡlimited ingress permitted. |
| 7 | Protected against the effects of temporary immersion between 15cm and 1m in water. |
| 8 | Protected against the effects of continuous immersion in water. |
| IK Code | Protection against mechanical impact |
|---|---|
| IK | TEST |
| 0 | No protection |
| 01 ~ 05 |
Impact < 1 Joule |
| 06 | Impact = 1 joule |
| 07 | Impact = 2 joule |
| 08 | Impact = 5 joule |
| 09 | Impact = 10 joule |
| 10 | Impact = 20 joule |