... electrification systems.enclosed conductor busway,trolley bar The HFP 56 system is a powerail,protected from contact ( IP 24 ),for indoor ... by spring-stored carbon brushes. Technical dataElectrical properties:Max.current(A): 35 - 50 - 65 - 80 - 100 - 120 - 140 - 170Max.voltage ... to the machinery track.--Before running the powerail,Check the system for esay running of the current collector trolleys,i. ...