Electric, electronic and opto-electronic measuring apparatus, signalling apparatus, monitoring apparatus, switching, regulating and control devices; programmable apparatus for switching, controlling and automation systems; electronic components; electronic modules; apparatus for industrial and power electronics, included in this class; apparatus for electronic data recording, data input, data processing, data storage, data output, data display; apparatus for electronic signal transmission or data transfer; computer programs; electric switches, switching devices and switchgear, for all voltages and all currents, especially circuit-breakers, miniature circuit-breakers for cable and installation protection, motor-protective circuit-breakers, overload protective switches; thermal overload, timing and protective relays; switch-disconnectors and all types of switches, push-buttons, contactors, relays, fuses, surge voltage protectors, dimmers, switches, actuators, time switches, position switches, selector switches, safety switches, all for all voltages and combinations of the aforementioned goods; electric and electronic apparatus for protection of personnel and systems against damage by electric currents, voltages and electric arcs; fittings, terminating shrouds, sleeves, drawer units and withdrawable units, electric connection parts, terminals, plugs, adapters, assembly elements, mounting aids, all for electric equipment of all voltage ranges, included in this class; systems and apparatus for electric power distribution, busbar trunking systems; power supply units; enclosures, electric control panel cabinets, cable connection boxes made of metal or insulating material; switching and control apparatus and starters for electric motors; transformers, chokes; current converters and frequency inverters; systems made of combinations of the aforementioned goods; parts of the aforementioned goods, included in this class; all the aforesaid not in the domain of telephone and data technology