... from single phase two wire AC electricity net. The meter adopts LSI (Large-scale Integration) and SMTmanufacturing technique,the ... reliability, small volume, light weight, specious appearance, etc..The meter is widely used in office buildings, shopping malls, residences, airports ... (20), 10(40)A,15(60), 20(80), 30(100),etc.Operation voltage rangeUn±20%Starting current0.4%IbRated frequency50Hz ...