... , 230V, 240V, 380V2. Reference frequency: 50Hz or 60Hz3. Wire code: 2 wire, 3 wire, 4 wire4. Precision class: class 1.0 ... , class 2.05. Rated Current:1.5(6)A, 2.5(10)A, 5(20)A, 10 ... series for choice:(1) Single phase, three phase type meter(2) LED, LCD digital display type meter(3) Prepaid meter(4) Active meter ...