Abstract: A connection terminal clamping device clamping a conductor wire to a connection conductor bar comprises a part forming a conductor housing provided with at least one upwardly oriented opening for receiving at least one connectable conductor wire and the connection conductor bar, a clamping spring which maintains the conductor wire introduced into a housing-forming part in position against the conductor bar by means of an elastic force and which comprises a first connecting arm formed by the extension of a wall defining said housing-forming part and connected by an elbow to a second clamping arm provided with a free clamping end.

Abstract: An insulation-piercing connection arrangement for an electric wire in which an auxiliary insertion part (4) is displaced by a removable shank (5) acting as a lever in order to apply the necessary pressure for slicing through the insulating covering (20) of an electric wire (2) to be connected, and to insert the core (21) of said wire in a slit. The auxiliary insertion part (4) has a shank-receiving duct passing therethrough and includes a pusher (40) for pressing against the wire to be connected, it also includes a guide device (43) including wheels which co-operate with guide grooves (73) provided in the housing (7) containing the connection arrangement in order to enable the auxiliary insertion part (4) to perform pseudocircular insertion motion, thereby accelerating the tilting thereof when it is displaced between its two extreme positions.