Character: Two built-in Independent MPPT Boosters increase overall efficiency Convectional Cooling System provided to guarantee quiet operation Compact Size, Light Weight Up to 95% high conversion efficiency Advanced DSP Control Technology delivers accurate data Ease of Installation to Save Time and Money Mimic LCD Display IP65 Cabinets for both Indoor and Outdoor Applications Optional Monitoring Software provided to offer operational status and electricity generated data Description: The GT series grid-connected Photovoltaic Inverter is delivered in a waterproof IP65 enclosure which can be installed in either a grid connected solar tracker system or a stationary PV system. By taking care of an accurate power conversion from solar panel to local grid, the GT series effects conversion process with minimal power loss and maximum reliability. Specifications: Model Item DE-4000GT Inverter Technology Conversion Mode Sine-wave, Current source, High frequency PWM Isolation Method Transformer-less Design * DC Input Data   Nominal DC Voltage 360 VDC Max. DC input Voltage 500 VDC Working range 120VDC~500VDC ** Max DC input current (Each MPPT Tracker) 14 Amp MPPT Range 150 VDC ~ 450 VDC MPPT Tracker 2 AC Output Data   Nominal AC Power 4000 Max. AC Power 4200 Nominal AC Voltage AC 230V Output Connect Method 1-Phase / 2-Wires(L, N, G) or 1-Phase / 3-Wires(L1, L2, G) AC Voltage Rang 184~264.5Vac(Base on 230 Vac) Nominal AC Current 17.4Amp Frequency 50/60Hz Auto-Selection (47.5 ~ 50.2 Hz or 59.3 ~ 60.5 Hz) Power Factor >0.99 with nominal AC current Current Distortion Total Harmonic current : Less than 5% Single Harmonic current : Less than 3% Efficiency Data   Max. efficiency >96% Euro efficiency >94% CEC efficiency >94% Environmental   Operating Temperature -25 °C ~ + 50 °C -13 °F ~ 122 °F Humidity 0 to 90%(Without condensation) Altitude 0 ~ 2000 M / 0 ~ 6600 ft Mechanical   Dimensions (H x W x D in mm ) 455 x 510 x 170 Weight (Kgs / Lbs) 28 / 62 Protection Class IP65, outdoor Cooling Free Convection AC Connector Terminal DC Connector Multi-Contact Communication   Communication Interface RS232 USB, RS485, Dry contact, TCP/IP Front Panel   LCD Boost input Voltage/Boost input Current/Boost input Power/AC output Voltage /AC output frequency/AC output current /AC output power/AC Energy yield/Inner Temperature/Heat sink Temperature /Status message/ Error message LED Leakage current fault or DC input isolation fault Spec. of Utility is not matches with the Utility specifications of the inverter Solar Cell power is greater or smaller than sleep power Key Pad UP key/ Down key/ Function key/ Enter key Protection   Utility Over/under Voltage, Over/under Frequency, Ground fault, DC Isolation fault Islanding operation detection Passive : Voltage phase jump detection Active : Reactive power control Over Temperature reduced output power Certification   Safety VDE 0126-1-1, EN50178, IEC62103 UL1741, IEEE1547 EMI/EMC EN 6 1000-6-1, EN 6 1000-6-2, EN 6 1000-6-3, EN 6 1000-6-4