... :DD862,DD862-4 50Hz,.,GB/T15283-1994IEC521.hour meter is a kind of induction meter.which is applicable to measure the rated ... GB/T15283-1994 and lntermational standard IEC521.Structure feature: ,,,,.The meter has separable electromagnet and the bearing has four kinds;single ... (10),10(20),20(40),30(60),40(80),30(100)AOverl0ad capaciaty:200Ib 300Ib 400IbInsulation current:2kV 1,6kVAC voltage ...