SUN-6K-SG03LP1-EU | 6KW |Single Phase | 2 MPPT | Hybrid Inverter | Low Voltage Battery

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Item specifice:

Output Power: 6000W Inveter Efficiency: 97.00-97.60% Output Voltage(V): 220
Input Voltage(V): 370 Output Current(A): 27.3 Output Frequency: 50/60Hz

Product Description:

SUN 6K-SGhybrid inverter, is suitable for residential and light commercial use, maximizing self-consumption rate of solar energy and increasing your energy impendence.   During the day, the PV system generates electricity which will be provided to the loads initially. Then, the excess energy will charge the battery via SUN 6K-SG. Finally, the stored energy can be released when the loads require it. The battery can also be charged by the diesel generator to ensure uninterrupted supply in the event of grid blackout.

100% unbalanced output, each phase; Max. output up to 50% rated power

DC couple and AC couple to retrofit existing solar system

Max. 16pcs parallel for on-grid and off-grid operation; Support multiple batteries parallel

Max. charging/discharging current of 240A

48V low voltage battery, transformer isolation design

6 time periods for battery charging/discharging


Battery Input DataBattery Input   Data
Battery TypeLead-acid   or Li-lon
Battery Voltage Range (V)40~60
Max. Charging Current (A)135
Max. Discharging Current (A)135
External Temperature SensorYes
Charging Curve3   Stages / Equalization
Charging Strategy for Li-Ion BatterySelf-adaption   to BMS
PV String Input DataPV String Input   Data
Max. DC Input Power (W)7800
Rated PV Input Voltage (V)370   (125~500)
Start-up Voltage (V)125
MPPT Voltage Range (V)150-425
Full Load DC Voltage Range (V)300-425
PV Input Current (A)13+13
Max. PV ISC (A)17+17
Number of MPPT / Strings per MPPT2/1+1
AC Output Data
Rated AC Output and UPS Power (W)6000
Max. AC Output Power (W)6600
AC Output Rated Current (A)27.3
Max. AC Current (A)30
Max. Continuous AC Passthrough (A)40
Peak Power (off grid)2   time of rated power, 10 S
Power Factor0.8   leading to 0.8 lagging
Output Frequency and Voltage50/60Hz;   L/N/PE  220/230Vac (single phase)
Grid TypeSingle   Phase
DC injection current (mA)THD<3%   (Linear load<1.5%)< td="">
Max. Efficiency97.60%
Euro Efficiency97.00%
MPPT Efficiency99.90%
IntegratedPV   Input Lightning Protection, Anti-islanding Protection, PV String Input   Reverse Polarity Protection, Insulation Resistor Detection, Residual Current   Monitoring Unit, Output Over Current Protection, Output Shorted Protection,   Surge protection
Output Over Voltage ProtectionDC   Type II/AC Type III
Certifications and Standards
Grid RegulationCEI   0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98,
    VDE 0126-1-1, RD 1699, C10-11
Safety EMC / StandardIEC/EN   61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2
General   Data
Operating   Temperature Range (-45~60, >45 derating
 CoolingNatural   cooling
Noise (dB)<30   dB 
 Communication with   BMS RS485;   CAN 
Weight (kg)20.5
Size (mm)330W   x 580H x232D
Protection DegreeIP65
Installation StyleWall-mounted
Warranty 5 years


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Q:Is the grid side of the grid and the inverter?
The grid load side of the grid is the grid. The inverter is an important part of the PV grid-connected system and can not be regarded as an external load. Photovoltaic power generation system is included in both grid and off-grid.
Q:The working principle of photovoltaic grid - connected inverter
Inverter will be converted into alternating current DC, if the DC voltage is low, then through the AC transformer boost, that is, the standard AC voltage and frequency. For large-capacity inverter, because the DC bus voltage is high, AC output generally does not require transformer boost that can reach 220V, in the small and medium capacity of the inverter, because the DC voltage is low, such as 12V, 24V, It is necessary to design a boost circuit.
Q:What are the methods of photovoltaic grid-connected inverter control
The square wave output of the inverter using pulse width modulation integrated circuits, such as SG3525, TL494 and so on. Practice has proved that the use of SG3525 integrated circuits, and the use of power FET as a switching power components, to achieve high performance of the inverter, because the SG3525 has a direct drive power FET capability and has an internal reference source and operational amplifiers and Undervoltage protection, so its peripheral circuit is very simple.
Q:After the PV inverter, how to achieve the same period before the network?
Solar panel simulator: with MPPT function, simulated morning, noon, afternoon, evening, rainy weather, solar panels produced under different conditions in different voltages.
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter does not need energy storage, but the energy can not be controlled, the number of photovoltaic sent to send online how much, simply do not want people to.
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
For photovoltaic power plants when the power system accidents or disturbances caused by photovoltaic power plant grid voltage drop, in a certain voltage drop range and time interval, the photovoltaic power plant can ensure that non-off-line continuous operation.
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Offline generally need energy storage, not to send energy to the Internet. Grid has no right to interfere.
Q:The function of photovoltaic grid - connected inverter
By dc / dc conversion to increase or decrease the input voltage, adjust its output to achieve maximum efficiency.
Q:PV grid-connected inverter can directly load it?
Converter is the AC voltage of the grid into a stable 12V DC output, and the inverter is the AC output of the 12V DC voltage into high-frequency high-voltage alternating current; two parts are also used with more pulse width
Q:What is the difference between a PV inverter and a solar inverter?
The main component of the inverter is the three-phase bridge converter. The main purpose of the grid-connected inverter is to change the power to DC and change the AC power. The main purpose is to improve the power quality (because the wind power generation is very large

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