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
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
|
|
|
|
