Type: DDS-1Y-L Current: 5(30)A 5(60)A 10(100)A Voltage: 120V/240V Accuracy: 0.5,1.0,2.0 Impulse constant: 800imp/kWh Rated frequency: 60Hz Start current: 0.4%Ib(1.0) Creep: logical design of Anti-creep Power consumption: ≤1W(when 220V 20A) Function and characteristic: 1.Active electricity measuring, without adjust under long-time work. 2. With 485 communication, index in accordance with IEC 62056-21(A mode), which focus on intelligent management conveniently(if without 485, don't have such function).