... protection 1,18 months warranty 2,three Phase Applications:Overload, phase failure, rotor-locked, Asymmetry protectionFunctions:Micro ... setting By dial switchTripping class selectableLED indication for three phase current, measuring error≤ 2%Can be started ... without loadApplication:Used for protecting three phase motorModelSetting current rangeMatched motor(AC 380V)NoteZHRA2-1A~5A1A ...