■特色TRMSmeasuring3PhaseVoltage CurrentwithsixdisplayscreenEasilyprogrammableparameterbyfrontpanel4relaywithflexibletripfunctionsforOverVoltage/UnderVoltage/OverCurrent/UnderCurrent/Un-balanced/Sequencereverse/VoltageHi(Lo)Alarm/CurrentHi(Lo)Alarm/DO/ADError!K.3externalcontrolinputforResetforRelaylatch/PVhold/ResetforMax.(Mini.)memorize/DI..Maximum minimummeasuringstorageBuild-inRS485communicationportOutsidedimensionsis1/4DINstandard(96x96mm)