Type: dds-1y-18m Current: 5(32)a, 5(40)a, 5(45)a, 5(50)a Voltage: 110v; 220v; 230v; 240v Accuracy: 1.0; 2.0 Constant: 1000imp/kwh Frequency: 50/60hz Connection mode: direct type;external ct type Display mode: counter 5+1 = 99999.9kwh Power consumption: n0.4w; n8va Start current: 0.004ib Din-rail standard: so43864 Executive standard: gb/t17215-2002; iec61036 120pcs/ctn. Carton size:50.2*40.5*19.5