EN 60068-2-75 Hammerschlagprüfung BS EN IEC 60068-2-75

EN IEC 60068-2-75

Hammer impact test bullet drop test

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 IK10+
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 acccording to ISO 1052, Rockwell hardness HRE 80...85 according to ISO 6508
EN 60068-2-75 Dimensions table of impact elements BS EN IEC 60068-2-75

How to do an IK test

IK test execution

In the IK test, an impact element is dropped from a well-defined height with a defined weight and shape onto the test site.

IK10 EN 60068-2-75 Testaufbau Freifallhammer

Impact element mass M

Acrylic glass pipe

Drop height h

Test object

Base plate

Impact Force Calculator

Schlagelemente
Reproducible results

EN60068-2-75 standard-complying impact elements are the prerequisite for reproducible test results. Here you can find sketches for free download.

IK impact energy increase

EN 60068-2-75 drop heights

Energy J 0,14 0,2 0,35 0,5 0,7 1 2 5 10 20 50
Total mass kg 0,25 0,25 0,25 0,25 0,25 0,25 0,5 1,7 5 5 10
Drop height mm ± 1% 56 80 140 200 280 400 400 300 200 400 500

Impact energy increase IK test

IK classification Impact energy (J) Energy gain (%)
IK00 0.00
IK01 0.14
IK02 0.20 42.86 %
IK03 0.35 75.00 %
IK04 0.50 42.86 %
IK05 0.70 40.00 %
IK06 1.00 42.86 %
IK07 2.00 100.00 %
IK08 5.00 150.00 %
IK09 10.00 100.00 %
IK10 20.00 100.00 %
IK10+ 50.00 150.00 %