Busbar N system, accessories, bar center distance 60mm N/PE busbar holder for bars 12x 5 (10)-30x 5 (10) and 6x 6mm, free-standing or attached to 8US1923-2AA01 Busbar system 8US for the installation of protective devices such as fuse switch disconnectors and circuit breakers - safe, space-saving, clearly laid out. The use of the Siemens busbar systems 8US offers a wide range of options for the installation of rail-adaptable connection, switching and installation devices. The space-saving modular design and quick-assembly contacting ensure economical electrical equipment in today's installation distribution board construction. The assembly takes place on longitudinal beams, the bar spacing is 60 mm.