Grid Tie 7kw Inverter Features :·Maximum efficiency of 98.6%·DC input voltage up to 1000V·Internal DC switch·Transformerless·Compact design·Multi MPP controller·MTL-String·Ethernet /RF technology /Wi-fi·Sound control·Easy installation·Comprehensive Growatt warranty programDatasheetYS 6000YS 7000YS 8000YS 9000Input data (DC)Max. Recommended PV Power(for solar panel STC)6300W7300W8350W9500WMax. DC voltage800V1000V1000V1000VStart voltage150V350V350V350VPV voltage range140V-800V180V-1000V180V-1000V180V-1000VMPP work voltage range/nominal voltage200V-800V/580V300V-1000V/600V300V-1000V/600V300V-1000V/600VMax. input current10A/10A15A/15A15A/15A15A/15AMax. input current per string16A15A15A15ANumber of independent MPP trackers/stings per MPP tracker2/12/22/22/2Output (AC)Rated AC output power6000W7000W8000W9000WMax. AC power6000VA7000VA8000VA9000VAMax. output current9.3A11.7A13.3A15AAC nominal voltage ; range3/N/PE,Website:http://www.yangtze-power.com,230V/400V185-260V3/N/PE,230V/400V184-275V3/N/PE,230V/400V184-275V3/N/PE,230V/400V184-275VAC grid frequency; range50,60Hz;44-55HZ/54-65HZ50,60Hz;44-55HZ/54-65HZ50,60Hz;44-55HZ/54-65HZ50,60Hz;44-55HZ/54-65HZAdjustable displacement power factor0.8leading-0.8laging0.8leading-0.8laging0.8leading-0.8laging0.8leading-0.8lagingTHDI＜3%＜3%＜3%＜3%AC connectionThree phaseThree phaseThree phaseThree phaseEfficiencyMax. efficiency97.9%98%98%98%Euro - eta96.8%97.5%97.5%97.5%MPPT efficiency99.5%99.5%99.5%99.5%Protection DevicesDC reverse polarity protectionyesyesyesyesDC switch rating for each MPPTyesyesyesyesOutput over current protectionyesyesyesyesOutput over voltage protection-varistoryesyesyesyesGround fault monitoringyesyesyesyesGrid monitoringyesyesyesyesIntegrated all-pole sensitive leakage        current monitoring unityesyesyesyesGeneral DataDimensions (W / H / D) in mm560*433*200740*490*235740*490*235740*490*235Weight35kg41kg41kg41kgOperating temperature range-25℃…+60℃-25℃…+60℃-25℃…+60℃-25℃…+60℃Noise emission (typical)≤35dB(A)≤55dB(A)≤25dB(A)≤25dB(A)Altitude2000m2000m2000m2000mSelf-Consumption at night＜0.5W＜0.5W＜0.5W＜0.5WTopologyTransformerlessTransformerlessTransformerlessTransformerlessCooling conceptNaturalSmart CoolingSmart CoolingSmart CoolingEnvironmental Protection RatingIP65IP65IP65IP65Relative humidity0~95%0~95%0~95%0~95%FeaturesDC connectionH4/MC4 (opt)H4/MC4 (opt)H4/MC4 (opt)H4/MC4 (opt)AC connectionScrew terminalScrew terminalScrew terminalScrew terminalDisplayLCDLCDLCDLCDInterfaces: RS232/RS485RF/Wi-Fi/Ethernetyes/yes/opt/opt/optyes/yes/opt/opt/optyes/yes/opt/opt/optyes/yes/opt/opt/optWarranty: 5 years / 10 yearsyes/optyes/optyes/optyes/optCertificates and Approvals VDE-AR-N4105, CEI 0-21, CE, VDE 0126-1-1, IEC 62109, RD 1663/2000, G59/2. EN50438, AS4777, AS/NZS 3100