Abstract: A protective conductor connector for an electrical terminal having a housing mounted on the leg portion of a support rail is characterized by a slider provided between the terminal clamping screw and the rail. The slider is arranged within a terminal carrier and includes a clamping surface arranged beneath the clamping screw and a toothed clamped zone arranged above the rail leg portion. The slider also includes inclined guide surfaces which are guided by projections of the terminal housing during clamping movement of the slider. When the clamping screw is operated, the slider is displaced vertically and horizontally to clamp the conductor against the slider clamping surface and to scratch through a corrosion protective coating on the rail leg portion, thereby providing a reliable electrical connection between the conductor and the rail regardless of the diameter of the conductor.