Single-phase Digital Watt-hour Meter

general: Intelligent single-phase watt-hour meter adopts advanced energy metering IC,designed with the features of machanical watt-hour meter counters,the product with the features of high precision,reliablity,long life,small size,etc,resolved watt-hour meters installation problems in outlet wire's loop of low-voltage cabinets such as GCK,GCS,MNS and so on,can be widely used in industrial and mining enterprises,construction buildings,residential areas'energy measurement,assessment and management. main features: -measurement:single-phase active watt-hour,reactive watt-hour,voltage, current,active/reactive power,power factor, frequency -metering: active electric energy,reactive electric energy -display mode: single-line LCDdisplay -communication: RS485communication,MODBUS-RTU protocol technical parameters: 1.rated voltage: AC100V,400V(special can be made to order) over load : last:1.2 times, instantaneous: 10 times /10s power consumption: <1VA(each phase) impedance: >500KΩ accuracy;0.5 2.rated current: AC1A,5A(special can be made to order) over load : last:1.2 times, instantaneous: 10 times /10s power consumption: <0.4VA(each phase) impedance: <2mΩ accuracy;0.5 3.frequency: 40 60HZ accuracy: 0.1HZ power: active power accuracy: 0.5, reactive power accuracy: 1.5 electric energy: active accuracy:1.0, reactive: 2.0 4. working power scope: AC/DC 85 270V power consumption: 5VA 5. output: RS485,MODBUS-RTU protocol 6. woking environment: -10 55°c storage environment: -20 75°c