Abstract: The disclosure relates to an electrical connector comprising a plug element with a longitudinal axis, said plug element having a plug housing with a circular cross-section and a coupling ring arrangement mounted rotatably about the longitudinal axis, wherein at least one guide lug which projects radially inward is arranged on the inner circumferential face of the coupling ring arrangement, and a socket element with a longitudinal axis, said socket element having a socket housing with a circular cross-section for accommodating the plug housing, wherein, on the outer circumferential face of the socket housing, at least one spiral-shaped guide groove is disposed for receiving the at least one guide lug of the coupling ring arrangement, and wherein, at the end of the at least one guide groove, an end position for the at least one guide lug of the coupling ring arrangement is disposed.

Abstract: The disclosure relates to an electrical connector comprising a plug element with a longitudinal axis, said plug element having a plug housing with a circular cross-section and a coupling ring arrangement mounted rotatably about the longitudinal axis, wherein at least one guide lug which projects radially inward is arranged on the inner circumferential face of the coupling ring arrangement, and a socket element with a longitudinal axis, said socket element having a socket housing with a circular cross-section for accommodating the plug housing, wherein, on the outer circumferential face of the socket housing, at least one spiral-shaped guide groove is disposed for receiving the at least one guide lug of the coupling ring arrangement, and wherein, at the end of the at least one guide groove, an end position for the at least one guide lug of the coupling ring arrangement is disposed.

Abstract: A device (10) for supplying electrical power and signals to a submersible pump (15) in such a way that it is sealed from liquids via an external electrical cable (11) extending through a opening (49) within the head (48) of a pump housing (50). The device comprises a plug connector device (10), whose pump-side plug connector part (13) is arranged within the through opening (49) of the housing head (48) so as to be axially movable and whose cable-side plug connector part (12) is provided with an insulation coating (25), which extends from an area of the cable jacket (20) down to its plug connector contacts (17), and about which, behind its free end, a coupling part (27) is provided which can be connected in a mechanically fixed manner to a counterpart coupling part (54) on the exterior end of the through opening (49) within the head (48) of the pump housing (50).