Safety electrical assembly comprising: - an electrical apparatus having a connecting zone provided with terminals configured to be respectively connected to corresponding cables, each terminal presenting a corresponding connecting opening formed within an insulating housing of the electrical apparatus, - a protective cover configured for cooperating with the electrical apparatus in a mounted position wherein the safety electrical assembly presents a main opening configured for the passage of cables connected to corresponding terminals from an exterior area to an interior area of the safety electrical assembly, the interior area being defined between the electrical apparatus and the protective cover, the connecting openings being located in the interior area and the main opening being arranged so that a direct trajectory from any point of the main opening oriented toward any point of any connecting opening intersects an obstacle of the safety electrical assembly, any point of the main opening is to be considered as any point comprised within an area defined by a contour of the main opening and any point of a connecting opening is to be considered as any point comprised within an area defined by a contour of said connecting opening, the direct trajectory being a straight line, wherein the protective cover comprises an upper wall located in front of the connecting zone, the connecting openings being oriented transversally to the upper wall, wherein the protective cover comprises transverse walls that are linked to and extending transversally from the upper wall, at least some of the transverse walls are configured to cooperate with the insulating housing in mounted position, wherein the transverse walls comprise two opposed side walls and a front wall linked to the two side walls, the sides walls and the front wall defining the main opening. - an electrical apparatus having a connecting zone provided with terminals configured to be respectively connected to corresponding cables, each terminal presenting a corresponding connecting opening formed within an insulating housing of the electrical apparatus, - a protective cover configured for cooperating with the electrical apparatus in a mounted position wherein the safety electrical assembly presents a main opening configured for the passage of cables connected to corresponding terminals from an exterior area to an interior area of the safety electrical assembly, the interior area being defined between the electrical apparatus and the protective cover, the connecting openings being located in the interior area and the main opening being arranged so that a direct trajectory from any point of the main opening oriented toward any point of any connecting opening intersects an obstacle of the safety electrical assembly, any point of the main opening is to be considered as any point comprised within an area defined by a contour of the main opening and any point of a connecting opening is to be considered as any point comprised within an area defined by a contour of said connecting opening, the direct trajectory being a straight line, wherein the protective cover comprises an upper wall located in front of the connecting zone, the connecting openings being oriented transversally to the upper wall, wherein the protective cover comprises transverse walls that are linked to and extending transversally from the upper wall, at least some of the transverse walls are configured to cooperate with the insulating housing in mounted position, wherein the transverse walls comprise two opposed side walls and a front wall linked to the two side walls, the sides walls and the front wall defining the main opening.