Plain, threaded and punched busbar and flexible busbar, for use as electrical conductors and sold together with supports, clamps, fasteners and fittings there for; braided and press welded power shunts and jumpers for use as electrical conductors, electrical earthing connectors namely, bars, braids, jumpers and screw and spring clips, kits comprised of bus bars, bar supports, flexible bus bar, connectors and clamps, and mounting clips for busbar, electrical distribution blocks, clips, parts and accessories for such blocks, electrical insulators and accessories for such insulators namely, spacers and supports, busbar, braid and cabling sleeves, electrical lugs, profiles, brackets, rails for chassis, construction parts for mounting electrical devices and for constructing electrical cabinets, surge protection devices, electrical expansion joints, electrical transformer connectors, electric furnace cable, electric clamps and pads, electrical bus tubes, delta connectors for electric furnaces and transformers, water cooled electric cables and terminals, software for designing, testing and operating high current electrical circuits and panels, measuring and testing instruments for high current electrical circuits and panels, and parts and fittings thereof