... life of mechanical equipment and electrical.3.It can start continuously 5 to 10 times4.The structure is simple, reliable ; and ... installation and maintenance are convenient.II, Application:Applicable to three-phase AC 380V 660V, 3KV, 6KV,10KV drag fan ... rotor type asynchronous motor soft starter and control surging currentIII, How to order,1, Model of motors, rated power, stator voltage, ...