Apparatus and instruments for the conducting, switching, converting, storage, regulating and control of electricity, in particular equipment and apparatus for protecting persons and installations from damage caused by electrical current, electric, electronic and mechanical switching and regulating equipment and equipment and components for industrial and power electronics, error-current, line, motor, overcurrent and system protection equipment, apparatus and fuses, temperature, time, control and protective relays, power surge protection equipment and apparatus, current transforming equipment, power restoring equipment, timer switches, not for clock movements; positioning, control and surface switches, key buttons, dimmers, actuators; room controllers, central operating units; control equipment, housings, current metering and display equipment, busbars for switching equipment, sockets, programmable and individually configured control equipment, equipment for the radio transmission of signals; apparatus for data transmission; distributors for equipment and apparatus for protection, switching, control, display, metering and regulating purposes; cabinets for data transmission equipment

Construction, installation and repair of electric and electronic installations