<p>An embedded electrical switchboard comprises an embedded box (10) suitable to be housed in a cavity (12) of a wall (14) , at least one support case (18) for electrical devices suitable to be fixed to the embedded box (10) and means (36) for fixing the support case (18) to the embedded box (10) . The fixing means (36) comprise at least one connecting element (38) that is provided by means of a threaded pin extending from an outer frame (16) of the embedded box (10) and at least one stop (40) movable along said connecting element (38) to abut against one abutment surface (42) of the support case (18) that faces the embedded box (10) . The stop (40) is a ring-nut coupled to the threaded pin and movable relative thereto following an operation of screwing or unscrewing the ring-nut to the threaded pin.</p>
