... of high overload, low power loss and longlife etc.Specification: 1. Rated Voltage: 100V ,220V, 230V, 240V, 380V2. Reference frequency: 50Hz ... : 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 ... , 30(100)A, and so on6. Type series for choice:(1) Single phase, three phase type meter(2) LED, LCD digital ...