... is the basic element of bus bar system, may be mounted with 5mm or 10mm-length ... busbar, double-T Universal bus bar frame , , is used for bus bar of 12,15,20,25,3*5/10UL- bus bar frame, is ... Bottom groove , suitable for UL - bus bar framePE/E-bus bar frame, is used for 12,15,20,25,30*5/10Bus bar ... frame with connection terminal , is used for 12,15 ...