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SAJ 20KW Suntrio Plus 3 Phase On-Grid Inverter



  • Optimized global MPPT algorithm, MPPT efficiency is greater than 99.5%
  • Asymmetric double road MPPT, compatible with various rooftop power stations.
  • Maximum efficiency 98%, European efficiency 97.6%.
  • Lower temperature drop and increase the power generation capacity of the system.
  • Easy to install.
  • No transformer design, smaller volume, lighter weight.
  • AC output fast interface design, easy to install.
  • Special chassis grip design, easy to install.
  • One key set set, easy to set all grid parameters.
  • Built-in independent RTC clock chip to support 25 year power general.
  • Integrated LCD graphical d.
  • Integrated RS232 /RS485 interface, which access to the Wi-Fi.
  • PC, local / remote intelligent maintenance of mobile phones.
  • Response to power grid scheduling and support intelligent micro grid energy management.
  • Integrated reactive power regulation function.


SAJ 20KW Suntrio Plus 3 Phase On-Grid Inverter

Industrial and Commercial three phase PV grid-connected inverters are mainly used in commercial rooftop PV grid system, to turn PV DC current into AC current for equipment in factories or sell to power grid. Suntrio Plus 12-20K is characterized with high efficiency, convenience in installing, stable and reliable. It’s preferred inverter for commercial PV investment.


ModelSuntrio Plus 20k (ST- 20)
Max DC Input Power24200
MPPT Range180 ~ 900v
Start Voltage [V]200
Min. DC Voltage [V]180
Max. DC Input Current PV1/PV2 [A]22/22
Number of MPPT2
Number of DC Connections Sets per MPPT2/2
Rated AC Power [VA] (@230V,50Hz)20000
Max. AC Apparent Power [VA]22000
Rated AC Current [A]29.0
Max. AC Current [A]33.0
Nominal AC Voltage / Range3/N/PE, 220/380V, 230/400V, 240/415V; 180V-280V/312V-485V
Grid Frequency / Range50Hz,60Hz/44Hz-55Hz, 54Hz-65Hz
Power Factor, Adjustable [cos φ]0.8 leading ~ 0.8 lagging
Total Harmonic Distortion [THDi]<3% (at Nominal Power)
Feed-in-Phase /  Connection Phase3L + N +PE
Max. Efficiency98.5%
Euro Efficiency (at 600Vdc)98.4%
MPPT Accuracy>99.2%
DC ConnectionMC4/H4
AC ConnectionTerminal Block
LCD Display3.5 inch Graphic LCD Display , Backlight
Display LanguageEnglish Language
Datalogger and Communication2*RS485 + 1*RS232 / Wifi (Optional)
Consumption at Night [W]<0.6
Consumption at Standby [W]<10
Operating Temperature Range-25°C to +60°C (45°C to 60°C with Derating)
Cooling MethodIntelligent fan
Ambient Humidity0% – 100% Non-condencing
Altitude 3000m (>2000m power derating)
Ingress ProtectionIP65 (Indoor and Outdoor installation)
MountingRear Panel
Dimensions (H*W*D) [mm]700*530*260
Net Weight [kg]48.0
Standard Warranty  [year]5 (standard) 10/15/20/25 (Optional)
CertificatesIEC62109-1/2, IEC61000-6-2/3, IEC61683, IEC60068-2, IEC62116, IEC61717,  PEA/MEA, NRS 097-2-1, UTE-C-15-712-1, VDEO126-1-1/A1, VDE-AR-N 4105, AS4777.3,  C-TICK CQC NB/T 32004, G83-2, NBR 16149, NBR16150, TF 3.2.1,  C10/11


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