ELEKTRISCHER SCHALTER

摘要

The invention proposes an electric switch (1) with a spring-supported push button (3) which, in addition to a mechanical assembly for the setting characteristic, exhibits a functional part for the excitation. This functional part consists of a permanent magnet (16), arranged at the switch plunger (11), which can be axially moved and, in the switched-off state of the electric switch (1), is located opposite to a coil (17) which rests with its remote end face against a Hall sensor (19) with integrated electronics. …This inbuilt functional part of the excitation results in a testable sensor-type push button switch (1). Several of these switches can be connected to an evaluating unit (24). As a result, this push button switch (1) becomes a switch which can be tested both in the unswitched and in the switched state. ……