IP codes (Degree of protection)
| Protection against ingress of solid foreign objects and against access to hazardous parts | First numeral |
| Non-protected | 0 |
| 50 mm diameter(hand) | 1 |
| 12,5 mm diameter (finger) | 2 |
| 2,5 mm diameter (tool) | 3 |
| 1,0 mm diameter (wire) | 4 |
| dust-protected (wire) | 5 |
| dust-tight (wire) | 6 |
Protection against ingress of water |
Second numeral |
| Non-protected | 0 |
| Vertical dripping | 1 |
| Dripping(15°tilted) | 2 |
| Spraing | 3 |
| Splashing | 4 |
| Jetting | 5 |
| Powerful jetting | 6 |
| Temporary immersion | 7 |
| Continuous immersion | 8 |
| Etting with 80-100 bar pressure, till 80°C tempera- ture (DIN 40050) | 9K |
Additional letter (A, B, C, D) and supplementary letter (H, S, W)
| Protection of the person against access to hazardous parts | Letters on the end of IP code |
| Non-protected | - |
| Back of hand | A |
| Finger | B |
| Tool dia 2,5 mm | C |
| Wire dia 1 mm, length 100 mm | D |
| High voltage apparatus | H |
| Motion during water test | S |
| Weather conditions | W |
IK codes - impact protection
(IK code characterizes ability of the equipment to resist mechanical impact on all sides (EN 50102))
| IK | Impact energy [J] |
Hammer mass [kg] |
Height of hammer elevation [cm] |
| 00 | 0 | - | - |
| 01 | 0,15 | 0,2 | 7,5 |
| 02 | 0,20 | 0,2 | 10 |
| 03 | 0,35 | 0,2 | 17,5 |
| 04 | 0,50 | 0,2 | 25 |
| 05 | 0,70 | 0,2 | 35 |
| 06 | 1 | 0,5 | 20 |
| 07 | 2 | 0,5 | 40 |
| 08 | 5 | 1,7 | 29,5 |
| 09 | 10 | 5 | 20 |
| 10 | 20 | 5 | 40 |
