Electric, electronic, electromechanical and mechanical components, sets of component and components especially for telecommunication equipment and PLC (programmable logic controller) applications, namely fuses, fuse systems comprised of fuse switches, fuse rails, fuse bases, fuse links, electrical and electronic sensors and controllers, switch gear and components thereof; safety devices, namely, fuses, fuse-switches, lightning arrestors and components thereof; telecommunication safety devices, namely, fuse systems comprised of fuse switches, fuse rails, fuse bases, fuse links, electrical and electronic sensors and controllers, and components thereof; fuse and switch gear holders, caps, and covers; fuse and switch fixtures, namely, housings, handles, terminal clamps, busbar supports, insulators for power supply apparatus and for telecommunication systems; current and voltage distributors, contracts, couplers, switches, connection modules and coupling modules for telecommunication systems; PLC applications equipment for coupling and uncoupling of data networks to energy networks and for the protection thereof against overload currents and overvoltages, namely connectors, short-circuit protection circuits, coupling capacitors, transformers, fuses, fuse-switches, electrical and electronic sensors and controllers

Technical advice and consulting, regarding the utilization, selection and user specific development of said telecommunications systems, PLC applications, power supply apparatus and said electric, electronic, electromechanical and mechanical components therefor