... . transparency case,black case 3.600hr DD862 single phase mechanical type watt-hour meterAPPLICATION DD862 single phase watt-hour meter is ... CurrentInsulationDD862-42.0220V,230V,240V1.5(6),2.5(10),5(20)3(10),10(40),15(60)20(80),30(100)400 ... ),40(80)200%IbDD866-41.5(6),2.5(10),5(20),3(12),10(40),15(60),20(80),30(100)400 ...