1.JJR2 Series low voltage soft start 2.apply to AC 50HZ,380V,660V, ... of load of the squirrel-cage motor. JJR2 Series low voltage soft start apply to AC 50HZ,380V,660V,11~500KW ... and characteristic 1) Five kinds of start mode:- Ramp voltage starting : In general which use for starting stationary higher ... operation current online8) LCD displayWiring Diagram Dimension : JJR2 Series low voltage soft start