The Siemens Bus bar system, accessories Bus bar centre-to-centre spacing 40, 60 mm cover for connecting terminals up to 3x 120 mm 3-pole Width: 84 mm 8US bus bar system for setting up protective devices such as fuse switch disconnectors and circuit breakers - safe, space-saving and clearly laid out. The use of the 8US bus bar systems from Siemens gives a number of options for installing rail-adaptable connecting, switching and installation devices

Mechanical fixing and electrical contacting in a single step
Easy replacement of individual devices or entire combinations
Time savings and cost reductions in installation with preassembled load feeders
High operational safety with finger-safe adapter and