... main circuit power inputConnect 3 phase AC through breakerU.V.WSofter output terminalConnect three-phase asynchronousL21.L22.L23Externalbypass ... starter protectionover current,overload, overheating, unbalanced three-phase,light load, external problem etcsoft starter alarmemergency stopping ... .6g)belowApplication sitenon-corrosive gases, flammable gas, oil mist live dust etcType of coolingnature wind ...