NOVELTY - The frame comprises: a workpiece (8) made of electrically insulating material lying along two axes of symmetry orthogonal to each other and formed with a central bore whose peripheral edge constitutes a support (85) of an electrochemical cell formed of a cathode, an anode, and an electrolyte interposed between the cathode and the anode, where the workpiece is pierced by four peripheral slots opposed in pairs on the periphery of the central bore; and ribs (86) defining channels (87) for distributing gas between each of the slots elongated along the X-axis.    USE - The electrical insulation and sealing frame is useful for distributing gases in a high temperature steam solid oxide electrolyzer cell-type or solid oxide fuel cell-type electrolyzer (claimed) for producing hydrogen.    ADVANTAGE - The frame reduces the cost in producing an interconnector, as no machining or stamping of metal plate to the structure with gas channels is required, and reduces risk of plugging the holes of the distribution by glass joints for improving gas distribution to the cell.    DETAILED DESCRIPTION - The frame comprises: a workpiece (8) made of electrically insulating material lying along two axes of symmetry orthogonal to each other and formed with a central bore whose peripheral edge constitutes a support (85) of an electrochemical cell formed of a cathode, an anode, and an electrolyte interposed between the cathode and the anode, where the workpiece is pierced by four peripheral slots opposed in pairs on the periphery of the central bore, and two of the peripheral slots are elongated along a length corresponding to a length of the central bore of an X-axis and distributed on either side of the X-axis, while the other two slots are elongated over a length corresponding to the length of the central bore along the Y-axis and distributed on either side of the Y-axis; ribs (86) defining channels (87) for distributing gas between each of the slots elongated along the X-axis, where the ribs define circumferential channels of the distribution pipe connecting each of the two slots elongated along the Y-axis to the central bore, and a part of the ribs further comprises three continuous recessed areas (88) in the periphery of the bore; and gaskets in the form of continuous strands, where one of the gaskets is deposited on the support of the cell and the other is deposited along each of the continuous recessed areas. The frame part of electrically insulating material is obtained from a strip of sintered ceramic. The contours of the workpiece of electrically insulating material formed by the support, the ribs, the channels, and the recessed areas are stamped. The thickness of the workpiece is 0.1-2 mm. The continuous strands forming the gaskets are placed in the continuous recessed areas, where one of the strands is deposited on one of the main faces between two continuous recessed areas. A depth of the continuous recessed areas of the workpiece in the direction orthogonal to the plane defined by the axes is 0.05-1 mm. An INDEPENDENT CLAIM is included for a solid oxide electrolyzer and solid oxide fuel cell -type electrolysis reactor.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic perspective view of a portion of an electrical insulation and sealing frame.    Workpiece (8)    Support (85)    Ribs (86)    Channels (87)    Continuous recessed areas. (88)