Manufacturer of human machine interface products
Switches, LED Indicators, Joysticks, Panel solutions
When a switch is intended for harsh environments, its level of resistance to shocks and vibrations must be considered.
Shock resistance measures the electrical contact reliability and more particularly the capacity to maintain the electrical function in case of shock or strong vibrations. The IEC 512-4c/4d standard defines the tests measuring the resistance level by evaluating the capacity of the switch to withstand successive strong accelerations and decelerations.
Le poussoir série IM possède un mécanisme "snap-action"
Marc joined APEM beginning of 2008.
He is our Product Marketing Manager.
Before, Marc was a project manager in the aeronautic sector.
Marc, APEM Marketing Product Manager, explains why the « snap-action » mechanism can be a solution for your project..
Two points must be evaluated to choose the right switch:
The « snap-action » mechanism combines these two features.
It is a quick-break mechanism without intermediate state. Switching is obtained by the deformation of a spring or moving contact when the switch is operated.
Choosing a « snap-action » mechanism allows combining a standard operating force and a high contact pressure. For this reason, in case of shocks or strong vibrations, there is no risk of contact without actuator operation. Moreover, to be easily deformable, the moving contact must be thin and light and these two features make it intrinsically resistant to shocks (low inertia).
Two tests permit to verify the conformity to the IEC 512-4c/4d standard specifications.
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