Electrical switching unit with separable contacts

An electrical switching unit with separable contacts, comprising a switching device comprising:

• a fixed electrical contact and a mobile electrical contact that can be displaced between a closed position and an opened position;
• a control lever coupled mechanically to the mobile electrical contact, the control lever being rotationally mobile, about a first axis of rotation, between a first position and a second position, by being configured so that the displacement of the control lever from the first position to the second position causes a displacement of the mobile contact from the closed position to the opened position;
• an anti-bounce lever, mounted on the control lever by a pivot link and being able to be displaced, by virtue of the pivot link, in rotation about a second axis of rotation parallel to the first axis of rotation, between a rest position and a deployed position;
• the anti-bounce lever being configured to be displaced from the rest position to the deployed position when the control lever reaches the second position and to cooperate with an abutment of the switching device when the anti-bounce lever is in its deployed position and the control lever is in the second position to prevent the control lever from leaving the second position;
• wherein the switching device comprises a fixed bearing mounted around the control lever, the anti-bounce lever comprising a contact portion which is in contact against an edge of the fixed bearing when the anti-bounce lever is in its rest position and which is displaced along said edge when the control lever rotates about the bearing,
• and wherein the fixed bearing comprises, on said edge, a cam-shaped guiding portion configured to push the anti-bounce lever to its deployed position.