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                    what is EN/IEC 60068-2-75 IK hammer test and striking elements?
                    
          
                     2025-08-01 
                    
          
                    
            
                     
                    WHAT IS STANDARD EN/IEC 60068-2-75?
                    HAMMER TEST
                    Standard EN/IEC 60068 consists of 3 methods for testing the impact resistance 
of a test object against impacts with different severity levels. It serves to 
demonstrate the mechanical strength of a product and is intended primarily for 
the testing of electrical equipment. The test consists of a standardised test 
procedure with a defined number of impacts on the test object with a defined 
impact energy. Standard IEC 60068-2-75 covers impact energies from 0.14 J to 50 
J.
                    EN 60068-2-75 DIMENSIONS TABLE OF IMPACT ELEMENTS
                    IK CODE
                    IK00
                    IK01
                    IK02
                    IK03
                    IK04
                    IK05
                    IK06
                    IK07
                    IK08
                    IK09
                    IK10
                    IK11
                    Impact energy (Joule)
                    *
                    0.14
                    0.20
                    0.35
                    0.50
                    0.70
                    1.00
                    2.00
                    5.00
                    10.00
                    20.00
                    50.00
                    Drop Heigth (mm)
                    *
                    56
                    80
                    140
                    200
                    280
                    400
                    400
                    300
                    200
                    400
                    500
                    Mass (kg)
                    *
                    0.25
                    0.25
                    0.25
                    0.25
                    0.25
                    0.25
                    0.50
                    1.70
                    5.00
                    5.00
                    10.00
                    Material
                    *
                    P1
                    P1
                    P1
                    P1
                    P1
                    P1
                    S2
                    S2
                    S2
                    S2
                    S2
                    R (mm)
                    *
                    10
                    10
                    10
                    10
                    10
                    10
                    25
                    25
                    50
                    50
                    50
                    D (mm)
                    *
                    18.5
                    18.5
                    18.5
                    18.5
                    18.5
                    18.5
                    35
                    60
                    80
                    100
                    125
                    f (mm)
                    *
                    6.2
                    6.2
                    6.2
                    6.2
                    6.2
                    6.2
                    7
                    10
                    20
                    20
                    25
                    r (mm)
                    *
                    –
                    –
                    –
                    –
                    –
                    –
                    –
                    6
                    –
                    10
                    17
                    l (mm)
                    *
                    Must be adapted to the appropriate mass
                    Swing hammer
                    *
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Spring hammer
                    *
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    No
                    No
                    No
                    No
                    No
                    Free fall hammer
                    *
                    No
                    No
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Yes
                    Specifications from the standard EN 60068-2-75
                    * not protected according to the standard
                    1.Polyamide 85 ≤ HRR ≤100 Rockwell hardness according to ISO 2039/2
                    2.Steel Fe 490-2 according to ISO 1052, Rockwell hardness HRE 80...85 
according to ISO 6508
                    1.png
                    Table 1 Striking element characteristics
                    Energy / J
                    ≤1
                    ±10%
                    2
                    ±5%
                    5
                    ±5%
                    10
                    ±5%
                    20
                    ±5%
                    50
                    ±5%
                    Equivalent Mass ±2%kg
                    0.25(0.2)
                    0.5
                    1.7
                    5
                    5
                    10
                    Material
                    Nylon
                    Steel
                    R/mm
                    10
                    25
                    25
                    50
                    50
                    50
                    D/mm
                    18.5(20)
                    35
                    60
                    80
                    100
                    125
                    f/mm
                    6.2(10)
                    7
                    10
                    20
                    20
                    25
                    r/mm
                    -
                    -
                    6
                    -
                    10
                    17
                    l/mm
                    Adjusted according to the equivalent mass, see Appendix A

                    Table 2 Height of Fall
                    Energy /J
                    0.14
                    0.2
                    (0.3)
                    0.35
                    (0.4)
                    0.5
                    0.7
                    1
                    2
                    5
                    10
                    20
                    50
                    Equivalent Mass /kg
                    0.25
                    (0.2)
                    0.25
                    (0.2)
                    0.25
                    (0.2)
                    (0.2)
                    0.25
                    0.25
                    0.25
                    0.5
                    1.7
                    5
                    5
                    10
                     
                    
          
                    
          
          
                    
        
                    
      
                    
    
                    
  
                    

                    


                    
  
                    
  
                    
    
  
                    

                    





 
 
  
 


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