Electric and electronic connecting apparatus in the field of the transmission of electrical energy, data, and electrical signals for industrial, residential and commercial use, namely, electrical power supplies, electrical components in the nature of protection relays, voltage surge protectors, electric accumulators, electric capacitors, electric cables, electric current switches, electric diodes, electric converters, electric fuse boxes, electric installations for the remote control of industrial operations; electric and electronic connecting terminals and connectors in the fields of data, energy and signal transmission, namely, Ethernet cable connectors, plug connectors, plug-in connectors, tool-less electrical connectors, crimp electrical connectors, insulation-piercing electrical connectors, duplex electrical connectors, adaptor plugs, adapters, cable connectors, electric connectors, battery terminal connector clamps, insulated electrical connectors, electrical connection boxes, electric fuse boxes; electronic devices including their parts, namely, electric door opening and closing systems; electrical cables for transmitting energy and data for industrial, residential and office use, namely, flat cables, round cables, ducting for electrical cables, electric wires, electrical cables and cord sets, electrical plug-in devices enabling connection and disconnection of power and control cables, Ethernet cables, fiber-optic cables, battery cables; insulated housings for electric apparatus, namely, electric junction box housings, electric switch housings, electrical connector housings, housings for printed circuit boards, electrically insulated housings for electrical apparatus made from synthetic plastic material, electric plug housings, electric junction boxes, electric outlet boxes, waterproof junction boxes, protective housings in the nature of electrical accumulators, electric capacitors, electric cables, electric current switches, electric diodes, electric converters, electric fuse boxes with and without integrated electrical distributors and electric couplings; electrical power supplies, namely, high-frequency switching power supplies, batteries, battery chargers, voltage stabilizing power supplies, current converters; repeaters, namely, Ethernet repeaters; gateways, namely, gateway routers in the nature of computer control hardware; electric and electronic sensors for measuring solar radiation, water levels, temperature, humidity, distance, digital input and output scanners, track ball input devices; computer hardware in the nature of circuit boards provided with integrated circuits, computer expansion boards, computer interface boards; and voltage and power distribution and protection systems composed of breakers and switchgear, namely, electrical fuses, electrical current switches, electrical connection boxes, electric fuse boxes, circuit breakers, electric switches, electrical connection boxes, electric fuse boxes, switch boxes, and relays and modules for overvoltage protection, namely, static voltage regulators, voltage surge suppressors, voltage surge protectors, voltage regulators for electric power, electric voltage transformers