IK testen (Impact Protection Class)

Normative document IEC 62262 refers to the classification of the degrees of protection provided by enclosures against external mechanical impacts when the rated voltage of the protected equipment is not greater than 72,5 kV. This standard is only applicable to enclosures of equipment where the specific standard establishes degrees of protection of the enclosure against mechanical impacts (expressed in this standard as "impacts"). The Impact hammer tests carried out according to test standard IEC 60068-2-75.

With our impact hammer tests and strike elements we are now able to provide conformity with the following IK classifications:

Test 1	Impact test - class IK01
Normative document	IEC 62262:2002 - class IK01
Test standard	IEC 60068-2-75:2014 - paragraph 6 – method Ehb (Spring hammer)
Joule	0,14 (±10%)
Spring compression	10 mm (±1%) (Spring constant 2,75 x 10³ N/m)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 02	class IK02
Normative document	IEC 62262:2002 - class IK02
Test standard	IEC 60068-2-75:2014 - paragraph 6 – method Ehb (Spring hammer)
Joule	0,2 (±10%)
Spring compression	13 mm (±1%) (Spring constant 2,75 x 10³ N/m)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 3	Class IK03
Normative document	IEC 62262:2002 - class IK03
Test standard	IEC 60068-2-75:2014 - paragraph 6 – method Ehb (Spring hammer)
Joule	0,35 (±10%)
Spring compression	17 mm (±1%) (Spring constant 2,75 x 10³ N/m)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 4	class IK04
Normative document	IEC 62262:2002 - class IK04
Test standard	IEC 60068-2-75:2014 - paragraph 6 – method Ehb (Spring hammer)
Joule	0,5 (±10%)
Spring compression	20 mm (±1%) (Spring constant 2,75 x 10³ N/m)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 5	class IK05
Normative document	IEC 62262:2002 - class IK05
Test standard	IEC 60068-2-75:2014 - paragraph 6 – method Ehb (Spring hammer)
Joule	0,7 (±10%)
Spring compression	24 mm (±1%) (Spring constant 2,75 x 10³ N/m)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 6	class IK06
Normative document	IEC 62262:2002 - class IK06
Test standard	IEC 60068-2-75:2014 - paragraph 6 – method Ehb (Spring hammer)
Joule	1 (±10%)
Equivalent mass	0,25 kg (±2%)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 7	class IK07
Normative document	IEC 62262:2002 - class IK07
Test standard	IEC 60068-2-75:2014 - paragraph 7 – method Ehc (Vertical hammer)
Joule	2 (±5%)
Equivalent mass	0,5 kg (±2%)
Drop height	400 mm (±1%)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 8	class IK08
Normative document	IEC 62262:2002 - class IK08
Test standard	IEC 60068-2-75:2014 - paragraph 7 – method Ehc (Vertical hammer)
Joule	5 (±5%)
Equivalent mass	1,7kg (±2%)
Drop height	300mm
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 09	class IK09
Normative document	IEC 62262:2002 - class IK09
Test standard	IEC 60068-2-75:2014 - paragraph 7 – method Ehc (Vertical hammer)
Joule	10 (±5%)
Equivalent mass	5 kg (±2%)
Drop height	200 mm (±1%)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 10	class IK10
Normative document	IEC 62262:2002 - class IK10
Test standard	IEC 60068-2-75:2014 - paragraph 7 – method Ehc (Vertical hammer)
Joule	20 (±5%)
Equivalent mass	5 kg (±2%)
Drop height	400 mm (±1%)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

Test 11	Impact test (IK10+)
Simulation of	External mechanical impacts
Normative document	IEC 62262:2002 - class IK10+
Test standard	IEC 60068-2-75:2014 - paragraph 7 – method Ehc (Vertical hammer)
Joule	50 (±5%)
Equivalent mass	10 kg (±2%)
Drop height	500 mm (±1%)
Number of impacts	5 on each exposed face, unless otherwise specified in the relevant product standard. Maximum 3 impacts applied in the surroundings of the same point.
Method of mounting	Mounted by its normal means on rigid plane support or be placed against a rigid plane support.
Functional	Yes / No (depending on relevant product specification)
Test result	The specimen shall be submitted to the visual, dimensional and functional checks prescribed by the relevant specification. The relevant specification shall prescribe the criteria upon which the acceptance or rejection of the specimen is to be based.

The customer shall prescribe the attitudes of the specimen and the locations on the specimen corresponding to where damage is most likely to occur in practice and at which the impacts are to be applied. Unless otherwise specified by the relevant specification, the blows shall be applied perpendicularly to the tested surface. In general, the degree of protection applies to the complete enclosure. If parts of the enclosure have different degrees of protection, the latter shall be indicated separately. Each enclosure under test shall be in a clean and new condition, complete with all its parts in place unless otherwise specified in the relevant product standard.

Specifications:
These tests are used to determine the level of protection provided by enclosures for electrical equipment against external mechanical impacts. These tests can be performed using either the spring hammer (IK01 - IK06), pendulum or vertical hammer methods.

Contact us
Do you have any further questions about these test procedures, or do you want us to perform an Impact Hammer test? Pick up the phone and give us a call or, if you prefer, send an email. The team at Sebert Trillingstechniek are ready to help.