ddsy450

... prepaid kwh meter is fit to realize advance purchasing electricity. DDSY450 single phase prepaid kwh meter1.ApplicationDDSY450 can calculate AC single ... after power shutdowntime accuracy at the beginning:below0.5s/d. DDSY450 single phase prepaid kwh meter

... 17215-2002 Energy meter, watt-hour meterEach performance index of DDSY450 series single-phase electronic prepaid watt-hour meter conforms to ...