Abstract: A connector (1) comprising a least a housing (10) with a least one aperture (12), at least two terminals each being inserted into one of the aperture (12) and at least one locking device (30) for insertion into an opening (11) of the housing (10) for locking at least one of the terminals in an aperture (12), permits an easy control of the connection of the terminals, if the locking device (30) comprises at least two contact pads (36), each contact pad connecting one of the at least two terminals (50), and if the locking device (30) supports a signaling circuit, being connected to the contact pads (36).

Abstract: A self-locking screw connection includes a cylindrical thread section (130) and a nut (300) that can be snapped onto the cylindrical thread section (130). The nut (300) has a thread that is divided into several thread segments (322), and the cylindrical thread section (130) has a plurality of threadless chambers (134) that are spaced from one another along the circumference of the cylindrical thread section (130). The threadless chambers allow immersion of one of the thread segments into one of the threadless chambers for providing a self-locking effect.

Abstract: A device for relieving mechanical tension of an electric cable includes two symmetrical, elastically flexible clamping members that extend in a transverse direction relative to a tension direction of the cable. The clamping members are inclined opposite to the tension direction of the cable, slotted similar to a comb, and symmetrically oppose one another.