IK Rating

IK ratings are defined as IKXX, where “XX” is a number from 00 to 10 indicating the degrees

of protection provided by electrical enclosures (including luminaires) against external

mechanical impacts. The IK rating scale identifies the ability of an enclosure to resist

impact energy levels measured in joules (J). IEC 62262 specifies how the enclosure must

be mounted for testing, the atmospheric conditions required, the quantity and distribution

of the test impacts and the impact hammer to be used for each level of IK rating

IK00  Not protected

IK01  Protected against 0.14 joules impact.

Equivalent to impact of 0.25 kg mass dropped from 56 mm above impacted surface.

IK02  Protected against 0.2 joules impact.

Equivalent to impact of 0.25 kg mass dropped from 80 mm above impacted surface.

IK03  Protected against 0.35 joules impact.

Equivalent to impact of 0.25 kg mass dropped from 140 mm above impacted surface.

IK04  Protected against 0.5 joules impact.

Equivalent to impact of 0.25 kg mass dropped from 200 mm above impacted surface.

IK05  Protected against 0.7 joules impact.

Equivalent to impact of 0.25 kg mass dropped from 280 mm above impacted surface.

IK06  Protected against 1 joules impact.

Equivalent to impact of 0.25 kg mass dropped from 400 mm above impacted surface.

IK07  Protected against 2 joules impact.

Equivalent to impact of 0.5 kg mass dropped from 400 mm above impacted surface.

IK08  Protected against 5 joules impact.

Equivalent to impact of 1.7 kg mass dropped from 300 mm above impacted surface.

IK09  Protected against 10 joules impact.

Equivalent to impact of 5 kg mass dropped from 200 mm above impacted surface.

IK10  Protected against 20 joules impact.

Equivalent to impact of 5 kg mass dropped from 400 mm above impacted surface.