Changes

*Low Power (Load) Contacts <br />U > 10V <br />I > 300mA<br />

This load range is characterized by the fact that the voltage is below the softening voltage of the respective contact material (< approx. 80mV) and the current stays below 10mA. Because of this low electrical load the switching occurs without any electrical discharge and also without any significant thermal stress on the contact spot. The main influences on the contact behavior are therefore chemical and mechanical in nature, such as contamination, and dust or abrasion particles for-med on the contact surfaces. The required high reliability can only be reached by using highly corrosion resistant contact materials. Since dust particle contamina-tions play a major role in determining the failure rate of these contacts, double (bifurcated) or multiple contacts are used frequently.