Apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity; electrical and electronic connectors; electrical and electronic sockets; electrical and electronic multi-contact connectors; parts of the aforementioned goods, in particular housings, cable glands, electrical contact pins and contact sockets, inserts for electrical contact pins and sockets; electrical and electronic components in the nature of central processing units, memory cards, electric and electronic sensors for measuring electrical energy, current and voltage, host bus adaptors, interfaces for computers, computer network interface devices¸ voltage surge suppressors, surge protectors, capacitors, connectors, filters, oscillators, switches, transformers, resistors, rectifiers, transistors, electrical relays; electric and electromechanical transformers, switchboards, electric switches, data distribution switches, and circuit breakers, and electric and electronic circuits for current and voltage monitoring or control of electronic functions and for voltage surge protection; electrical plugs and connectors with integrated electrical and electronic components in the nature of central processing units, memory cards, electric and electronic sensors for measuring electrical energy, current and voltage, host bus adaptors, interfaces for computers, computer network interface devices¸ voltage surge suppressors, surge protectors, capacitors, connectors, filters, oscillators, switches, transformers, resistors, rectifiers, transistors, electrical relays; electric and electromechanical transformers, switchboards, electric switches, data distribution switches, and circuit breakers and circuits, especially for current and voltage monitoring, the control of electronic functions, measurement of energy, power, temperature, signal processing, identification of connected devices and for voltage surge protection; fiber optic couplings; fiber optic connectors; electric network cabling; optical connectors, namely, fiber optic connectors; electrical control circuits for local area network hardware, data processing equipment and computers, energy meters, voltmeters and ammeters; electronic or electrical circuits; electro-optical transducers; electrical and electronic control devices and instruments, namely, electronic controllers for use with power converters, electronic controllers used to reduce power consumption, namely, electronic controllers for use with power converters, electronic controllers used to reduce power consumption, electronic controllers for current and voltage monitoring, electronic controllers for use with measurement of energy, power and temperature, electronic controllers for signal processors, electronic controllers for voltage surge protectors, electronic controllers for data transmission and power distribution via electricity grids; signal converters; amplifiers; voltage surge protectors; hardware for data processing; data processing apparatus; apparatus for recording and transmission of data; digital signal processors; information technology and audiovisual devices, namely, data processing equipment and computers, local area network hardware and local area network operating software, data transmission cables, electric adapters, power controllers, network routers, telecommunication switches, communication hubs, gateway routers in the nature of computer control hardware and modems; encoded electronic identification cards; embedded computer systems made of computer hardware, computer peripherals, and computer software for data management, computer software for controlling electricity, computer software for operating and controlling data transmission and power distribution via electricity grids, computer software for the remote control of industrial operations, computer software for industrial process and automation control, computer software for monitoring, programming and controlling machinery, computer software for processing sensor data according to standard industry network protocols, computer software for digitizing sensor signals into sensor measured values, or computer software for collecting, storing, processing, analyzing, transmitting or visualizing data, namely, for the manufacturing industry, industrial automation industry, railway transportation, asset management, spare parts management, energy management and predictive maintenance; modular embedded computer hardware for use in, namely, the manufacturing industry, industrial automation industry, railway transportation for asset management, spare parts management, energy management, and predictive maintenance; optical devices, enhancers and correctors, namely, electronic circuits for error correction for use in optical devices; electrical current measuring, detecting and monitoring instruments, indicators in the nature of electrical signal transmitters and controllers; instruments for measuring, monitoring and analysing of electricity consumption; electric sensors and detectors for use in controlling, measuring and monitoring of energy distribution, voltage and electric current; apparatus and instruments for energy, power and temperature measurement, namely, electricity meters, voltmeters, ammeters, power meters and thermometers