Suntrio Plus 20K On-Grid Three Phase Inverter
August 9, 2020
Suntrio Plus 10K On-Grid Three Phase Inverter
August 9, 2020
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Suntrio Plus 15K On-Grid Three Phase Inverter

Quick Overview

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.


Product CodeST-15
Warranty5 Years
User GuideDownload PDF
Categories: ,

Technical Specification

Input (DC)
Recommended accessed DC power1 [W]18150
Max. DC Voltage [V]
MPPT Voltage Range [V]180-900
Nominal DC Voltage [V]
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
DC Switch
Output (AC)
Rated AC Power [VA] (@230V,50Hz)15000
Max. AC Apparent Power [VA]16500
Rated AC Current [A]21.7
Max. AC Current [A]25.0
Nominal AC Voltage / Range3/L/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-in3L + N + PE
Max. Efficiency98.4%
Euro Efficiency (at 600Vdc)98.1%
MPPT Accuracy>99.9%
Internal Over-Voltage ProtectionIntegrated
DC Insulation MonitoringIntegrated
DCI / GFCI / Grid MonitoringIntegrated
AC Short Circuit Current ProtectionIntegrated
Thermal ProtectionIntegrated
AC Surge ProtectionⅢ (Integrated),Ⅱ (Optional)
String Current MonitoringIntegrated
DC Surge ProtectionⅡ (Optional)
DC FuseOptional
Anti-island Protection MonitoringAFD
DC ConnectionMC4/H4
AC ConnectionTerminal Block
LCD Display3.5 inch Graphic LCD Display, Backlight
Display LanguageEnglish
Communication Port2*RS485 + 1*RS232
CommunicationWi-fi / GPRS / Ethernet  (Optional)
General Data
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
Altitude3000m ( >2000m power derating)
Ingress ProtectionIP65 (Indoor and Outdoor installation)
MountingRear Panel
Dimensions (H*W*D) [mm]640*450*232
Net Weight [kg]29.0
Standard Warranty  [year]5 (standard) 10/15/20/25 (Optional)
CertificatesIEC/EN62109-1/2,  EN61000-6-2/3, IEC61683, IEC60068-2, IEC62116, IEC61727,  VDE0126-1-1/A1, VDE-AR-N 4105, CQC NB/T 32004, G83/2, NBR 16149, NBR 16150,  C10/11, EN50438, Rd1669, UNE206006,  UNE206007, G59/3



Flexible and Efficient

  • Optimized global MPPT algorithm, MPPT efficiency higher than 99.5%
  • Three MPPT which are compatible to all kinds of solar roofs
  • Max. efficiency of 98.8%, European efficiency of 98.5%
  • Super wide input voltage range(180V-1000V), supporting various solar panels and string desings

Convenient Installation

  • Aluminium case design, smaller and lighter
  • Integrate DC combiner box, reduce system cost
  • Separate area for maintenance, easy and quick for repair

Smart and Easy to Use

  • One-button safety setting, easy configuration of all parameters
  • Built-in independent RTC chip, supporting data storage of 25 years
  • Integrated LCD graphical display, showing daily/monthly/yearly generation
  •  Integrated with the function of reactive power control & ZVRT, responds to power grid dispatching, energy management of grid
  • Integrate string current monitoring, monitor string working status

Safe and Reliable

  • IP65 protection for indoor and outdoor installation
  • Optional DC&AC surge protection, guarantee system safety
  • Optional Anti-PID module, protect panels from PID damage
  • Aluminum case design to enhance heat dissipation and prevent rust corrosion, prolong life time


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