IK Impact Rating Decoder (IEC 62262)
Decode an IK code into the impact energy an enclosure withstands, see the equivalent mass and drop height, and pick the IK rating for your location.
IEC 62262 impact energies
| Code | Energy (J) | Example |
|---|---|---|
| IK00 | 0 | Not protected |
| IK01 | 0.14 | |
| IK02 | 0.2 | |
| IK03 | 0.35 | |
| IK04 | 0.5 | |
| IK05 | 0.7 | |
| IK06 | 1 | |
| IK07 | 2 | About 0.5 kg dropped from 400 mm |
| IK08 | 5 | About 1.7 kg dropped from 300 mm |
| IK09 | 10 | About 5 kg dropped from 200 mm |
| IK10 | 20 | About 5 kg dropped from 400 mm |
How It Works
Drop height h = E ÷ (m × g)
IEC 62262 defines the IK code as the impact energy an enclosure withstands, tested with standard hammers or masses. IK is separate from the IP code for dust and water.
Worked example
IK08 = 5 J, the energy of about 1.7 kg dropped from 300 mm; with a 1 kg mass it equals a drop of about 510 mm.
Frequently Asked Questions
What does IK10 mean?
The enclosure withstands 20 J impacts, about 5 kg dropped from 400 mm.
Is IK part of the IP code?
No, IK is a separate code under IEC 62262; older IP codes had a third digit for impact, now replaced by IK.
Does a higher IK mean better IP?
No, they describe different things.
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