Impact resistance
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The IK classification is an international standard which describes suitability for the widest range of ambient conditions. It states how resistant articles such as enclosures are to mechanical stress. The official classification with IK codes of 00 to 10 specifies impact resistance up to a defined minimum level of impact energy which the enclosure must withstand. This code is expressed by means of the letters IK and a two-digit code number.
Index: Resistance to mechanical stress
IEC 62262:2002; IEC 60068-2-75:2015
| Symbol | Index | Brief description | Definition |
|---|---|---|---|
| 00 | No impact resistance | - | |
| 01-05 | Protection against blows with an impact energy of 0.15 joules to 0.7 joules | Defines an impact from a light tool (polyamide) | |
| 06 | Protection against blows with an impact energy of up to 1 joule | Defines an impact from a 500 g tool (polyamide) from a distance of 20 cm | |
| 07 | Protection against blows with an impact energy of up to 2 joules | Defines an impact from a 500 g tool (steel) from a distance of 40 cm | |
| 08 | Protection against blows with an impact energy of up to 5 joules | Defines an impact from a 1.7 kg tool (steel) from a distance of 29.5 cm | |
| 09 | Protection against blows with an impact energy of up to 10 joules | Defines an impact from a 5 kg tool (steel) from a distance of 20 cm | |
| 10 | Protection against blows with an impact energy of up to 20 joules | Defines an impact from a 5 kg tool (steel) from a distance of 40 cm |
