An electrical equipotential connection device having: a connector (1) that includes: a first electrical connector element (2); at least one resilient tab (4); a socket (9) that includes: a contact surface (12); a second electrical connector element (20); at least one housing (14) suitable for cooperating with the at least one resilient tab (4); a disconnection track (17) adjacent to the housing (14) and extending substantially parallel to the insertion direction (21). The connector (1) is rotatable with respect to the base (9), about the insertion direction (21), between: a stable locking position in which the resilient tab (4) is inserted into the housing (14); an unlocking position in which the resilient tab (4) is resiliently deformed and disposed on the disconnection track (17).