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Suntrio Plus 5K On-Grid Three Phase Inverter

Quick Overview

Small three-phase PV grid-connected inverters are mainly used in residential PV grid-connected systems, to convert PV DC current to AC current for use in residential electrical equipment or for sale to the power grid. Suntrio Plus Series 4K, 5K, 6K, 8K & 10K Grid-connected Inverters are the preferred inverters for residential PV investment because of their small size, light weight, high efficiency, easy installation, and reliability.


Brand SAJ
Product Code ST-5
Warranty 5 Years
User Guide Download PDF
SKU: ST-5K Categories: ,

Suntrio Plus 5K On-Grid Three Phase Inverter

Suntrio Plus 5K is an on-grid three phase type inverter. It comes with an easy installation setup – small light and transformless. This solar system gives IP65 protection for outdoor/indoor installation. It comes with an aluminum designed case which prevents corrosion, enhances the heat dissipation plus increase its life time—known as the best inverter because of these factors.

Some of the main features to know about this inverter are;

  • It comes with a 5 years warranty.
  • The current voltage it gives is 5KW.
  • Comes with an efficiency of 97.2%, at max level it is 97.8%.

Basic Information

This solar panel inverter has a net weight of 20.5 kg with the dimensions of 530 x 355 x 190 mm. The solar inverter consists of backlight LCD display—allowing the user to watch the voltage ratings, the size is about 3.5 inches. Likewise, it perceives multiple languages.

The integrated cooling method is natural convention. Moreover, the operating temperature range is from -25 to +60 degrees Celsius with ambient humidity of 0 to 100%. It can suitably work on an altitude of up to 2000 m without derating power.

Related: Suntrio Plus 10K On-Grid Three Phase Solar Inverter

Working Stats

The working stats of this inverter are based on input (DC) and output (AC). Coming up to the input (DC) the different voltage ranges it includes are;

  • The maximum DC power this solar inverter gives is 6000 watts.
  • The max DC voltage is about 1000 watts.
  • It comes with an MPPT voltage ranging from 160 to 900 and nominal DC voltage is 600 volts.
  • The start voltage is 180 – minimum DC voltage is 150 volts.
  • There are 2 numbers of MPPT this inverter contains.

Now talking about the output (AC) voltage ranges this DC to AC inverter gives are;

  • The given rated AC power and max AC apparent power is 5000 VA.
  • Rated Ac current is 7.2 ampere – max level is at 8.1 ampere.
  • It gives the frequency of 50, 60 Hz.
  • It consists of an adjustable power factor of 0.9 leading or lagging.
  • This inverter creates total harmonic distortion of greater than 3% at nominal level.

Frequently Asked Questions

How many batteries are needed for a 5000 watt inverter?

A 5000 watt inverter will typically require a 24 volt DC input—mainly two 12 volt batteries can also be applicab,will be required for a 5K watt inverter. Some of the batteries are 48 volts DC; in this case four 12 volt batteries will be needed.

How many hours can an inverter last?

A solar inverter battery usually lasts for about 5 to 10 hours, if fully charged. Mostly, it is dependent on how many appliances or devices you use on an inverter’s battery.

How do I know if my inverter battery is full?

You can check the acid level of the inverter’s battery to check if it’s full or not. Just make sure that the battery is not overfilled. It should be less than the limit mentioned on it otherwise it can be dangerous. To know if the battery is in good condition, open up the vent plugs and check the acid color. If it’s colorless then the battery is in good condition.

What size inverter do I need to run a TV?

A TV can be run on a 300 watt inverter – it depends on the size of the TV that how much watts it needs to start. Like, a normal 32 inch TV can be run at 55 to 70 watts. If you want to supply power to a large device or big TV, then you should go for a large PV inverter which will have more battery storage.

Technical Specification

Input (DC)
Max. DC power [W] 6000
Max. DC Voltage [V] 1000
MPPT Voltage Range [V] 160-900
Nominal DC Voltage [V] 600
Start Voltage [V] 180
Min. DC Voltage [V] 150
Max. DC Input Current PV1/PV2 [A] 11/11
Number of MPPT 2
Number of DC Connections Sets per MPPT 1/1
DC Switch Integrated
Output (AC)
Rated AC Power [VA] (@230V,50Hz) 5000
Max. AC Apparent Power [VA] 5000
Rated AC Current [A] 7.2
Max. AC Current [A] 8.1
Nominal AC Voltage / Range 3/N/PE, 220/380V, 230/400V, 240/415V; 180V-280V/312V-485V
Grid Frequency / Range 50Hz,60Hz/44Hz-55Hz, 54Hz-65Hz
Power Factor, Adjustable [cos φ] 0.9 leading ~ 0.9 lagging
Total Harmonic Distortion [THDi] <3% (at Nominal Power)
Feed-in-Phase /  Connection Phase 3/3
Max. Efficiency 97.8%
Euro Efficiency (at 600Vdc) 97.2%
MPPT Accuracy >99.5%
Internal Over-Voltage Protection Integrated
DC Insulation Monitoring Integrated
DCI Monitoring Integrated
GFCI Monitoring Integrated
Grid Monitoring Integrated
AC Short Circuit Current Protection Integrated
Thermal Protection Integrated
Anti-island Protection Monitoring AFD
DC Connection MC4/H4
AC Connection Plug-in-Connector
LCD Display 3.5 inch Graphic LCD Display, Backlight, Inverter Parameter and Data Display
Display Language Multi Language
Datalogger and Communication 1*RS485/1*RS232/Wifi (Optional)
General Data
Topology Transformerless
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 Method Natural Convention
Ambient Humidity 0% – 100% Non-condencing
Altitude Up to 2000m (without power derating)
Noise(DBA) <29
Ingress Protection IP65 (Indoor and Outdoor installation)
Mounting Rear Panel
Dimensions (H*W*D) [mm] 530*355*190
Net Weight [kg] 20.5
Standard Warranty  [year] 5 (standard) 10/15/20/25 (Optional)
Certificates IEC62109-1/2, 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


Flexible and Efficient

  • Optimized global MPPT algorithm, MPPT efficiency higher than 99.5%
  • Asymmetric dual MPPT which are compatible to all kinds of solar roofs
  • Max. efficiency of 98.0%, European efficiency of 97.6%
  • Super wide input voltage range(150V-1000V), supporting all varieties of solar panels and string desings

Convenient Installation

  • Transformless, smaller and lighter
  • AC output quick connector design, for faster installation
  • Specialized mounting design, easy to install

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 RS232 / Wi-Fi interfaces, for improved communication
  • Free monitoring anytime anywhere
  • Local and remote intelligent maintenance by PC, IOS and Android devices
  • Responds to power grid dispatching, energy management of micro-grids
  • Integrated with the function of reactive adjusting

Safe and Reliable

  • IP65 protection for indoor and outdoor installation
  • Aluminum case design to enhance heat dissipation and prevent rust corrosion, prolong life time
  • Built-in high voltage DC switch for safer maintenance and application
  • Built-in convective fans to lower the temperature of core components, prolong life time
  • Natural convection for longer life


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