Цифровой комбинированный счетчик

general: Three-phase voltage and current combined meters are a kind of multifunction electric measurement meter with programmable measurement,displayand digital communication function,can completing electric measurement ,data display,sampling and sending.they can widely used in substation automation,distrubutionnetwork automation,intelligent buildings and clectric measurement,management and assessment of enterprise inside section. main features: measurement:three-phase voltage,three-phase current display:three-line LED display communication:RS485communication,MODBUS-RTUprotocol extension: can acess signal directly from current,voltage transformer,and be programmable to set parameters ratio in site outline dimension:80*80*76(mm) cut-out size: 76*76(mm) techniacal index: measurement network: 3-phase 3-wire, 3-phase 4-wire rated voltage: AC 100V, 400V(special can be made to order) over load: last 1.2 times; intantaneous: 10 times/10s power consumption: <1VA(each phase) accuracy class: 0.5 rated current: AC1A,5A(special can be made to order) over load: last 1.2 times; intantaneous: 10 times/10s power consumption: <0.4VA(each phase) accuracy class: 0.5 frequency: 40 60HZ, accuracy: 0.1HZ display: programmable, switching, circle(LED) display power supply: working scope: AC220V±10% power consumption:≤ 0.5VA output: digital interface: RS-485,MODBUS-RTU protocol environmrnt : working environment: -10 55°c storage environment: -20 75°c