Electrical connection assembly comprising: - at least one electric cable termination, of longitudinal axis, comprising a sleeve and a preferably cylindrical contact held inside the sleeve, the contact being intended to be connected, preferably crimped, to an electric cable, the sleeve comprising reliefs on its outer periphery; - at least one electrical connection module (3, 3.1, 3.2, 3.3) of longitudinal axis, comprising: • a body made of electrically insulating material, comprising at least one cavity designed to accommodate the electric cable termination, • an electrically conductive tube designed to connect at least one contact of the electric cable termination to another electrically conductive element (4, B), • at least one latch (35, 36), preferably in the shape of a U, comprising reliefs arranged towards the inside, the latch being designed to slide over the body between an unlocking position and a locking position in which the reliefs of the latch (35, 36) are interleaved in the complementary reliefs of a sleeve of the termination so as to prevent the latter from moving in translation along the axis with respect to the body, in a position in which said termination is inserted in the cavity of the body, the electrical connection assembly being characterized in that the insertion position is selected from among at least two possible positions (L1, L2). - at least one electric cable termination, of longitudinal axis, comprising a sleeve and a preferably cylindrical contact held inside the sleeve, the contact being intended to be connected, preferably crimped, to an electric cable, the sleeve comprising reliefs on its outer periphery; - at least one electrical connection module (3, 3.1, 3.2, 3.3) of longitudinal axis, comprising: • a body made of electrically insulating material, comprising at least one cavity designed to accommodate the electric cable termination, • an electrically conductive tube designed to connect at least one contact of the electric cable termination to another electrically conductive element (4, B), • at least one latch (35, 36), preferably in the shape of a U, comprising reliefs arranged towards the inside, the latch being designed to slide over the body between an unlocking position and a locking position in which the reliefs of the latch (35, 36) are interleaved in the complementary reliefs of a sleeve of the termination so as to prevent the latter from moving in translation along the axis with respect to the body, in a position in which said termination is inserted in the cavity of the body, the electrical connection assembly being characterized in that the insertion position is selected from among at least two possible positions (L1, L2). • a body made of electrically insulating material, comprising at least one cavity designed to accommodate the electric cable termination, • an electrically conductive tube designed to connect at least one contact of the electric cable termination to another electrically conductive element (4, B), • at least one latch (35, 36), preferably in the shape of a U, comprising reliefs arranged towards the inside, the latch being designed to slide over the body between an unlocking position and a locking position in which the reliefs of the latch (35, 36) are interleaved in the complementary reliefs of a sleeve of the termination so as to prevent the latter from moving in translation along the axis with respect to the body, in a position in which said termination is inserted in the cavity of the body, the electrical connection assembly being characterized in that the insertion position is selected from among at least two possible positions (L1, L2).