Power exactly what it is ...

... Namely at a 4 inch deep well pump. This depends in about 11 m depth and on the surface makes a pressure of about 7 bar at a throughput of about 5000l / h. I had previously 2 other pressure switches in which the phenomenon occurred that these abschalteten briefly despite tight engagement about every 20 seconds, and then start off again. This could not be remedied even by varying the Ausschaltdruckes. The DSK20SF does not do that, but is working as intended. When populating with couplings should be approached cautiously, the dog clutches used by me, I have only hand tightened after other users of broken threads reported.
From my point of view: good product at a fair price.

EDIT: After 2 years, burned ...