What do the different IK ratings mean?

A luminaire’s resistance to external impacts or shocks is classified using an international rating – the IK rating.

Types of emergency lighting units

Vandal resistance classification

The scale ranges from IK00 to IK11, where IK00 offers no specific protection against vandalism. Conversely, a luminaire rated IK11 must withstand a direct impact of 50 Joules.

The SS-EN 60068-2-75 standard describes the testing procedure for verifying a luminaire’s resistance to external force.

Typically, IK11 (50 Joules) is specified as the highest value. This corresponds to a 10 kg weight dropped from a height of half a meter. This test is performed three consecutive times.

IK rating in practice
The basic IK11 rating is well suited to a wide range of applications. At the same time, there is a need for enhanced protection in particularly exposed environments. Malux vandal-resistant luminaires are supplied with very high impact resistance; we have chosen to refer to this concept as IK11+.

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IK10, 20J

(A luminaire that withstands between 20J and 80J is referred to as impact-resistant)
Enhanced impact resistance, withstands minor impacts and knocks

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IK11+, 80J

(A luminaire that withstands 80J and more is referred to as vandal-resistant) Very high impact resistance, capable of withstanding blows and kicks with objects such as wooden sticks, hockey sticks, etc.

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IK11, 50J

Very high impact resistance, capable of withstanding blows and kicks as well as impacts from footballs, floorball balls, etc.

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IK11++, 150J

Extremely high impact resistance, capable of withstanding heavy blows from hammers, thrown stones, etc.

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