Abstract: An obstacle detector system interposed between a frame and an associated moving member, the system being of the type comprising an obstacle detector device including at least two electrically conductive tracks which are held apart at rest by spaces. The system comprises a connection assembly including a support core made of electrically insulating material, at least two separate electrically conductive elements carried by the support core and intended to make contact with respective ones of the tracks when the core is inserted inbetween, and an envelope suitable for engaging the outside surface of the obstacle detector device in order to clamp it against the support core and the electrically conductive elements in order to maintain electrical contact between the tracks and the elements and also to ensure that the detector device is sealed.