SunGrow 3 KW Single Phase On-Grid Inverter


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Sungrow Power Supply Co., Ltd.





Solartrade Partner
Product Description
  • High Yield
  • Multi MPPT with three level topology so peak efficiency of 98.9 %, Maximum in Inverter Industry.
  • 10% Extra power on AC Side up to 45 degree.
  • Up to 40 % Loading on DC Side for increasing generation.
  • Integrated DC combiner box and DC/AC overvoltage protection so need to put additional String combiner Box.
  • Anti-PID Recovery concept for protecting from module degradation.
  • Forced Air cooling technology for fast cooling and longer life of product.
  • Easy O &M
  • Compact design and light weight for easy installation
  • Latest Bluetooth technology-for fast and quick on-site monitoring.
  • Plug-in design of IP68 fan and SPD, convenient for on-site maintenance
  • Integrated string current monitoring function for fast trouble shooting
  • Angular/Horizontal Installation as per site dimensions
  • Remote firmware updating for parameter setting and firmware
  • Grid Support
  • Active & reactive power control and power ramp rate control
  • Night SVG for reactive power supply.
  • Compatible with all market available third party dataloggers/RTUs.

Input (DC)

Model SG3K-S
Max. PV input voltage 600 V
Min. PV input voltage / Startup input voltage 90 V / 120 V
Nominal input voltage 360 V
MPP voltage range 90 – 560 V
MPP voltage range for nominal power 310 – 480 V
No. of independent MPP inputs 1
Max. number of PV strings per MPPT 1
Max. PV input current 10A
Max. current for input connector 12A
Max. PV short-circuit current 12A

Output (AC)

AC output power 3000 VA @ 45 ℃
Max. AC output current 13.7 A
Nominal AC voltage 230 Vac
AC voltage range 180 Vac–276 Vac (this may vary with grid standards)
Nominal grid frequency 50 Hz, 60 Hz
Grid frequency range 45 Hz–55 Hz, 55 Hz–65 Hz (this may vary with grid standards)
Total Harmonic Distortion (THD) < 3 % (of nominal power)
DC current injection < 0.5 % (of nominal current)
Power factor >0.99 at default value at nominal power (adj. 0.8 overexcited/leading to 0.8 underexcited/lagging)
Feed-in phases / Connection phases 1 / 1


Max. efficiency 98.2 %
Euro. efficiency 97.7 %


PV reverse connection protection Yes
AC short-circuit protection Yes
Leakage current protection Yes
Grid monitoring Yes
PV string current monitoring Yes
DC switch Optional
Overvoltage protection AC Type III

General Data

Dimensions (W x H x D) 300 mm x 370 mm x 125 mm
Weight 8.5 kg
Isolation method Transformerless
Degree of protection IP65
Power loss in night mode < 1 W
Operating ambient temperature range -25 to 60 ℃ (> 45℃ derating)
Allowable relative humidity range (non-condensing) 0 – 100%
Cooling method Natural cooling
Max. operating altitude 4000 m (> 2000 m derating)
Display / Communication LCD / Wi-Fi (optional)
PV connection type MC4 (Max. 6 mm² )
AC connection type Plug and play connector (Max. 6 mm² )
Certification IEC 61000-6-2, IEC 61000-6-3, AS/NZS 3100, AS 4777.2, AS 4777.3, IEC 62109-1, IEC 62109-2, VDE-AR-N-4105, VDE 0126-1-1, EN50438, NB/T 32004, GB/T29319, CE, CGC, TUV, SAA, ABNT NBR 16149:2013, ABNT NBR 16150:2013
Grid support Active & reactive power control, power ramp rate control
Type designation SG3K-S-10


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