Plug-in busbar for PLS., CLS., PKN., PFIM, PFHM, (with auxiliary switch), any switchgear combination with or without auxiliary switch possible, only a few components, 2 angle types per busbar cross-section for three-phase busbar, common cover profile with end caps for ZV-SS and ZV-SS-80A, short-circuit and insulation strength tested according to IEC/EN 60439-1