A switchgear panel comprising: an enclosure having a plurality of walls (1, 2, 3, 4, 5, 6) which delimit an internal volume suitable to accommodate corresponding electrical or electronic equipment, at least a first wall of said plurality of walls being provided with one or more openings suitable to allow venting outside the enclosure hot gases, flames, particulates, which may be generated when an arc strikes inside the panel; characterized in that it comprises: an arc protection assembly which is positioned outside the enclosure and is operatively associated to at least said first wall and comprises at least a first barrier element having a first surface which is provided with one or more first through openings defining each a first venting area through which said hot gases, flames, particulates, coming from the inside of the enclosure can pass through, and a second barrier element which is operatively associated to said first barrier element and comprises a second surface provided with one or more second through openings defining each a second venting area through which can pass the hot gases, flames, particulates, coming from the inside of the enclosure and having already passed said one or more openings and the first openings wherein the first venting area of each first through opening of said one or more first through openings is different from the second venting area of each second through opening of said one or more second through openings. an enclosure having a plurality of walls (1, 2, 3, 4, 5, 6) which delimit an internal volume suitable to accommodate corresponding electrical or electronic equipment, at least a first wall of said plurality of walls being provided with one or more openings suitable to allow venting outside the enclosure hot gases, flames, particulates, which may be generated when an arc strikes inside the panel; characterized in that it comprises: an arc protection assembly which is positioned outside the enclosure and is operatively associated to at least said first wall and comprises at least a first barrier element having a first surface which is provided with one or more first through openings defining each a first venting area through which said hot gases, flames, particulates, coming from the inside of the enclosure can pass through, and a second barrier element which is operatively associated to said first barrier element and comprises a second surface provided with one or more second through openings defining each a second venting area through which can pass the hot gases, flames, particulates, coming from the inside of the enclosure and having already passed said one or more openings and the first openings wherein the first venting area of each first through opening of said one or more first through openings is different from the second venting area of each second through opening of said one or more second through openings. an arc protection assembly which is positioned outside the enclosure and is operatively associated to at least said first wall and comprises at least a first barrier element having a first surface which is provided with one or more first through openings defining each a first venting area through which said hot gases, flames, particulates, coming from the inside of the enclosure can pass through, and a second barrier element which is operatively associated to said first barrier element and comprises a second surface provided with one or more second through openings defining each a second venting area through which can pass the hot gases, flames, particulates, coming from the inside of the enclosure and having already passed said one or more openings and the first openings wherein the first venting area of each first through opening of said one or more first through openings is different from the second venting area of each second through opening of said one or more second through openings.