Nippon india offers pushbutton switches, las-1series. Features: the installation hole`s diameter of the series pushbutton - 016 mm; every pushbutton can possess from one to four switch units; use the gold-clad silver contact or silver contact; the front shape; round [f 18 mm], rectangular [18 x 24 mm], square [18 x 18 mm]; many types are available; pilot lamps, pushbuttons, illuminated push buttons, selector switches, and key lock switches; and ip protective degree: ip40, ip 67.