In switch manufacturing, quality is crucial for the safety and longevity of the switch. For these reasons, there are legislations and standards that require various tests to be performed. Among them are the overload test with incandescent lamps and switch heating. These tests check the contacts resistance against sticking and contacts heating during operation. Different test results have been analysed with different contact materials to identify the best contact material combinations for use in the SM10 switch. It has been shown that the AgZnO8 PW25 contact material on the jumper provides lower contact sticking and lower contact heating compared to the standard AgNi10 material.
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