Abstract: A plunger switch for use as a switch element in an electrical circuit, has a housing and a plunger movable axially in a bore of the housing in the direction of a longitudinal axis and when in an operating position in which it is depressed toward the housing, acts on an electronic sensor unit situated in the housing, which in turn initiates a switching procedure in the electrical circuit by electrical pulses, and the plunger, in its axial plunging region into the bore of the housing, is peripherally provided with at least one lubricating groove, which permits a lubricating fluid to travel into the axial plunging region between the plunger and bore, and the electronic sensor unit is protected from a penetration of lubricating fluid.

Abstract: A plunger switch for use as a switch element in an electrical circuit, has a housing and a plunger movable axially in a bore of the housing in the direction of a longitudinal axis and when in an operating position in which it is depressed toward the housing, acts on an electronic sensor unit situated in the housing, which in turn initiates a switching procedure in the electrical circuit by electrical pulses, and the plunger, in its axial plunging region into the bore of the housing, is peripherally provided with at least one lubricating groove, which permits a lubricating fluid to travel into the axial plunging region between the plunger and bore, and the electronic sensor unit is protected from a penetration of lubricating fluid.

Abstract: A magnetically operated switch has a receiver which is mounted such that it is moveable between two switch positions, and which is used to actuate the magnetically operated switch, a housing relative to which the receiver is movably supported, a magnet, a magnetic sensor which interacts with the magnet, and evaluation electronics which are assigned to the magnetic sensor and can be used to generate a switch signal that is dependent on the switch positions of the receiver. To provide an improved magnetically operated switch, it has a magnetic shield which interacts with the magnet, the shield and the magnet are in different positions relative to one another depending on the switch positions of the receiver, and the evaluation electronics generate the switch signal depending on the relative positions.