switches/sockets/cover plates A cover plate comes into 1/2/3/4/6/8 modules, if the plate is not fully occupied with the selected switches and sockets, dummy plates should be used to cover the blank space. A switch/ socket of any particular range will fit into the plate of that particular range, i.e. an Athena switch will fit into only an Athena plate and not in any other plate One can use a GI metal box of any make however it should be of the same module as that of cover plate For surface mounting, mounting boxes should be of the same make and module as that of the cover plate