1) DDS881electric energy meter 2)High reliability 3)CE,CB,ISO9001,14001,IEC 4)Simple ... are conformed to the national standard GB/T17215-2002 grade 1 and grade 2 static AD active meter and the IEC standard.Performance ... (v) Rated current(A) DDS881 1.0 2.0 220 1.5(6),2.5(10),5(20),10(40),15(60 ...