Unipolar electrical connection device, has plug with tubular unit introduced into annular groove, maintained in insulator, during coupling of plug and active base that is arranged at back of insulator

摘要

The device has a plug (1b) with a contact (4b) cooperating with a contact of an active base that is arranged at the back of an insulator. The plug has a tubular unit (9b) coaxial to a longitudinal axis of the plug. The unit is introduced into an annular groove, maintained in the insulator, during the coupling of the plug and the base. The unit has thickness lower than width of the groove.