Abstract: A frame is provided with at least two holes (12, 15) to fasten electrical and/or electronic devices. The frame includes a single body having fastening means to be fastened on at least one flush-mounted box (21), and that includes a first part incorporating a hole (12) intended to be fastened on a flush-mounted box (21) by fastening means adapted to fasten the frame (1) on the flush-mounted box (21) and a second part incorporating a hole (15) that is not associated to a flush-mounted box (21). The frame (1), at least on the part incorporating the hole (15) that is not associated to a box (21) shows at least a separator element (16) supporting the frame (1) on the wall on which it is to be installed. The separator element (16) is constituted by the frame (1) itself folded creating a flap or rim, the separator element (16) spanning on the whole or part of the perimeter of the frame (1).