Busbar system, accessories, bar center distance 40, 60mm side module, width: 13.5mm for widening device adapters and supports 8US1. Length 182mm Busbar system 8US for the installation of protective devices such as fuse switch disconnectors and circuit breakers - safe, space-saving, clear. 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. The Siemens busbar systems 8US are characterized above all by: 1. Mechanical fastening and electrical contacting in one operation. 2. Worldwide approval and therefore worldwide application possibilities in mechanical and plant engineering. 3. Easy replacement of individual devices or entire combinations. 4. Installation time savings and cost reduction thanks to fully assembled consumer branches. 5. High operational reliability thanks to finger-safe cover of the adapters and device carriers. 6. Wide range of usable busbars for easy adaptation to currents up to 1,600 A. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, installation distributors as well as switches and sockets for safe, efficient electrical infrastructure in buildings and industry.