dem161 three phase prepayment electro-mechanical kwh meter is a kind of mechanism-electronic integrative meter which is designed and manufactured on the basis of type ddy155 single phase prepayment watt-hour meter. the meter has many functions such as electric energy measuring, load control and using electricity management etc. its technique performance are completely conformed to the stipulated requirements of national standard gb/t15283-94 department standard jb/t8382-96 and international standard iec60521. dem161 three phase prepayment electro-mechanical kwh meter is used for measuring rated frequency 50 hz three phase ac active energy electric power consumption. function and features: 1. the structure of microcomputer control board and photo-electricity sensor is designed. 2. it protects for overload input voltage, overload output ic card with code and data against false etc. 3. voltage range in ac 154-287v is normal. 4. the data will preserved forever if power is interrupted. 5. the outline structure dimension and installation dimension and connection way is the same as ordinary meter. our products watt hour meter, watt hour meters, kilowatt hour meter, kilowatt hour meters, kilowatt-hour meter, kilowatt-hour meters, kwhmeter, kwh meters, electricity meter, electricity meters, electric meter, electric meters, electronic meter, electronic meters, electrical meter, electrical meters, kwhmeters, kwh-meter, electric energy meter, billing meter, static watt hour meter, mechanical kwh meters, watthour power meter, ac kilowatt-hour meter, mechanical kwh meter, mechanical energy meter, single phase mechanical kwh meter, three phase mechanical kwh meter, electro-mechanical kwh meter, prepaid kwh meter, prepayment meter, electricity meters with prepaid chip cards, multi meter, single phase electronic prepayment watt-hour meter, china meter, top-quality electricity meters, din rail kwh meters, din rail watt-hour meter, din rail energy meter, din-rail electronic watt-hour meter, din rail mounted kwh meters, single phase din rail watt-hour meter, single phase din rail kwh meters, three phase din rail kwh meter, three phase electronic kwh electricity meters, single phase electronic kwh electricity meters, din mount single-phase class 1 kilowatt hour meter, din mount three-phase class 1 kilowatt hour meter, din rail mount 1 module single phase kilowatt hour meter