Connection assembly comprising a male contact and a female contact; - the male contact comprising a pin composed of an electrically conductive material and extending longitudinally along a central axis parallel to a direction of insertion, between an end linked mechanically and electrically to a fixing portion, and a free end, - the female contact comprising a bush comprising a plurality of elastic blades, each blade extending longitudinally, between a base and a free end, and being linked to the rest of the contact only at the base, these blades being configured to receive the pin of the male contact between them and to establish at least one electrical contact with the pin, when the male contact is mated to the female contact; in which the pin is provided at its free end with a cap composed of a dielectric material, wherein each of these blades comprises two bent contact zones to form, respectively, on each of these bent contact zones, a first and a second contact surfaces that are convex and essentially oriented towards the central axis, the first contact surface being situated closer than the second contact surface to the free end of the blade 308 on which they are formed characteried in that the first contact surface of each blade is conformed so that, upon the connection of the male contact and of the female contact, the first contact surface rests on the cap before establishing an electrical contact with an electrically conductive zone of the pin, wherein a length of the cap parallel to the direction of insertion is greater than or equal to the distance between the first and second contact surfaces parallel to this same direction. - the male contact comprising a pin composed of an electrically conductive material and extending longitudinally along a central axis parallel to a direction of insertion, between an end linked mechanically and electrically to a fixing portion, and a free end, - the female contact comprising a bush comprising a plurality of elastic blades, each blade extending longitudinally, between a base and a free end, and being linked to the rest of the contact only at the base, these blades being configured to receive the pin of the male contact between them and to establish at least one electrical contact with the pin, when the male contact is mated to the female contact; in which the pin is provided at its free end with a cap composed of a dielectric material, wherein each of these blades comprises two bent contact zones to form, respectively, on each of these bent contact zones, a first and a second contact surfaces that are convex and essentially oriented towards the central axis, the first contact surface being situated closer than the second contact surface to the free end of the blade 308 on which they are formed characteried in that the first contact surface of each blade is conformed so that, upon the connection of the male contact and of the female contact, the first contact surface rests on the cap before establishing an electrical contact with an electrically conductive zone of the pin, wherein a length of the cap parallel to the direction of insertion is greater than or equal to the distance between the first and second contact surfaces parallel to this same direction.