The meaning of IK Code and Its Application

Issuing time:2024-06-05 08:55Author:Pego ElectronicsSource:Pego Electronics

1. The purpose of IK level

The IK level is to classification of the degrees of protection provided by enclosures of electrotechnical equipment against external mechanical impacts, such as household appliance, EV charging station, mounting box and etc.. Sandard IEC62262 defines the impact energy corresponding to different IK codes. In general, the degree of protection applies to the complete enclosure.

IK00

IK01

IK02

IK03

IK04

IK05

IK06

IK07

IK08

IK09

IK10

IK11

0

0.14J

0.2J

0.35J

0.5J

0.7J

1J

2J

5J

10J

20J

50J


2. The meaning of IK code

IK00 - no protection

IK01 - withstands 0.14J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 56mm on the surface)

IK02 - Withstand 0.2J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 80mm on the surface)

IK03 - Withstand 0.35J impact force (equivalent to the impact of an object weighing 0.2KG falling from a height of 140mm on the surface)

IK04 - Withstand 0.5J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 200mm on the surface)

IK05 - Withstands 0.7J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 280mm on the surface)

IK06 - Withstand 1J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 400mm on the surface)

IK07 - Withstand 2J impact force (equivalent to the impact of an object weighing 0.5KG falling from a height of 400mm on the surface)

IK08 - Withstand 5J impact force (equivalent to the impact of an object weighing 1.7KG falling from a height of 300mm on the surface)

IK09 - Withstand 10J impact force (equivalent to the impact of an object weighing 5KG falling from a height of 200mm on the surface)

IK10 - Withstand 20J impact force (equivalent to the impact of an object weighing 5KG falling from a height of 400mm on the surface)

IK11 - Withstand 50J impact force (equivalent to the impact of an object weighing 10KG falling from a height of 500mm on the surface)


3. How to perform the IK test

To verify the protection against mechanical impacts, test apparatus described in standard IEC60068-2-75 shall be applied for the test.

Test Eha: Pendulum hammer, can apply to severities from 0.14J (IK01) to 50J (IK111)

Test Ehb: Spring hammer, can apply to severities of 2J and below (IK01 to IK07)

Test Ehc: vertical hammer, can apply to severities of 2J and above (IK07 to IK11)


4. How to choose the right test apparatus

Annex C of standard IEC60068-2-75 gives the guidance for users to choose the right test apparatus. the choice of the test apparatus depends on the orientation of the surface to be tested and on the energy level. Not all methods can be used in every case. A pendulum hammer can only be used on vertical surfaces without overhangings. Similarly the vertical hammer can normally only be used on accessible horizontal surfaces. When the specimen cannot be moved or turned, for any reason, the choice is limited. The advantage of the spring hammer is that it can be used in any position, provided there is enough room to apply it correctly. But the spring hammer only suggest to the tests of severities of 2J and below.


Pego has a complete solution for IK testing, and the equipment can be customized as per the height of the device that will be tested.   


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