... protecting 4.Auto reset 5.Power supply: 9~12V AC NA702 Motor Protector Specifications ♦Main FunctionsF Current display: display three average ... displays alarm code.Alarm codes: CodeMeaningExplanationOL.overflowCurrent exceed measure range(NA702/704 measure range 50A,NA706/708 measure range 100A)OVLoverloadLoad ...