Switching strip, sensor strip safety and its production process and trap protection

Switching strip (10) for a device for recognizing an obstacle (210) in the area of ​​movement (221) of a closure element (220), especially a motor vehicle (200), wherein the switching strip (10) extending in a longitudinal direction and has a capacity, comprising: an inner electrode (20) loadable with a first electrical charge; an outer electrode (30) which can be deformed by a force (F) applied from outside, which can be loaded with a second electrical charge, is set in a cut extending transversely to the longitudinal direction approximately circular ring shape and surrounds the inner electrode (20) at a distance (D), almost concentrically; and an interspace (40) filled with air, which is disposed between the outer electrode (30) and the inner electrode (20) and is dielectric, and wherein, in the case of deforming the outer electrode (30), deformation it is appropriate for contacting the inner electrode (20) and the outer electrode (30) at least in sections, characterized by a separator (50) configured with a curved cross section, having two side surfaces (51) curved in the same circumferential direction of the switching strip (10) and can deform transversely to the longitudinal direction and separating from each other the inner electrode (20) and the outer electrode (30) and isolated.