Use of a set of standard modules for constructing three switching arrangements for use in gas-insulated or vacuum-insulated switchgear systems, wherein the switching arrangements meet different requirements and comprise a drive module which closes or opens electrical contacts, and wherein the standard modules comprise: • structurally identical individual contact modules, wherein an individual contact module has a housing which is open on both sides and which accommodates a moving contact carrier, and wherein the housings and the moving contact carriers of the individual contact modules used are structurally identical, • two types of base carrier module (1, 1') for accommodating individual contact modules, wherein one of the types of base carrier module permits a triangular arrangement of individual contact modules and has circular cutouts, the centre points of the said cutouts forming an equilateral triangle, and wherein the other of the types of base carrier module permits a linear arrangement of individual contact modules and has circular cutouts, the centre points of the said cutouts lying in a straight line, wherein the circular cutouts form mechanical interfaces for arranging the individual contact modules, • a type of bistable electromechanical drive module, and • connection components (7, 7', 10), wherein • three individual contact modules are arranged on the common base carrier module (1, 1') in such a way that the said individual contact modules can be operated by the single drive module, and • the drive module is connected to the three individual contact modules by means of the connection components, wherein the connection components (7, 7', 10) can be inserted in a replaceable manner into a plurality of the individual contact modules, and different connection components can pass through the housings of the individual contact modules from two sides. • structurally identical individual contact modules, wherein an individual contact module has a housing which is open on both sides and which accommodates a moving contact carrier, and wherein the housings and the moving contact carriers of the individual contact modules used are structurally identical, • two types of base carrier module (1, 1') for accommodating individual contact modules, wherein one of the types of base carrier module permits a triangular arrangement of individual contact modules and has circular cutouts, the centre points of the said cutouts forming an equilateral triangle, and wherein the other of the types of base carrier module permits a linear arrangement of individual contact modules and has circular cutouts, the centre points of the said cutouts lying in a straight line, wherein the circular cutouts form mechanical interfaces for arranging the individual contact modules, • a type of bistable electromechanical drive module, and • connection components (7, 7', 10), wherein • three individual contact modules are arranged on the common base carrier module (1, 1') in such a way that the said individual contact modules can be operated by the single drive module, and • the drive module is connected to the three individual contact modules by means of the connection components, wherein the connection components (7, 7', 10) can be inserted in a replaceable manner into a plurality of the individual contact modules, and different connection components can pass through the housings of the individual contact modules from two sides.