Sungrow Inverter

  • Snapinverter Technology
  • Integrated Data Communication
  • Superflex Design
  • Dynamic Peak Manager
  • Smart Grid Ready
  • Zero Feed-in
  • Active Cooling
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Opening for business in 1997, Sungrow has always been dedicated to forward-thinking processes and innovation and forward-thinking processes. Their portfolio includes PV inverter solutions and energy storage systems for residential, commercial and even utility level applications, with their floating PV plant solutions receiving international recognition. We couldn’t be prouder to offer a wide range of Sungrow inverters, well equipped to meet the solar energy needs of almost any residential solar installation including the Sungrow SGRT, designed specifically for three phase installations.

The second best selling inverter manufacturer in Australia, Sungrow are known for their durable, efficient and dependable inverters and these models are no exception. Ideal for residential installations, the SGRT series have low startup power requirements, which means they’re able to begin producing solar energy earlier in the day and continue to do so later into the evening. Combined with their multiple strings, and compatibility with bifacial modules, this allows for flexible installations to take the best advantage of how the sun hits your home.

It is also a very safe inverter, with a built in quick arc fault circuit interrupter, high anti-corrosion rating (C5) and build in PiD recovery.

To take even greater advantage of the inverter, and take better control of your energy, look no further than Sungrow’s iSolarCloud monitoring platform. Available on both app and web-based platforms, it allows you to track your SGRT inverter’s production and optimise your energy usage.

If you’d like to learn more about Sungrow inverters, get in touch through the form below.


The SnapINverter generation of inverters features a simple, standardised mounting system, making installation and maintenance easier than ever. A special feature in the design of the device is that the connection area is separate from the power stage set compartment, with both being installed separately. The remarkably light connection area and all its cabling is fitted to the wall first, followed by the power stage set. The innovative hinged system makes installation and servicing extremely user-friendly. The inverter is simply placed in the wall bracket and then secured. This means that it is not necessary to remove the entire inverter for servicing, just the power stage set. All the cabling remains in place.


We are the first inverter manufacturer to offer a data communication package with fully integrated datalogging, WLAN, Ethernet, energy management, web server and a range of interfaces. The inverter is connected to the internet by network cable or WLAN – without additional cabling – and grants you the perfect overview of how the PV system is operating. Connection to third-party components is provided by means of interfaces such as Modbus TCP SunSpec, Modbus RTU SunSpec or Fronius Solar API (JSON). The open interfaces can also be operated in parallel to the Fronius Solar.web.


The Fronius SuperFlex Design is an ingenious combination of technical performance attributes that make designing your PV system not only extremely simple, but also incredibly flexible. The key performance factors of the SuperFlex Design are two MPP trackers, together with a high system voltage and wide DC input voltage range. Every DC input, and therefore every MPP tracker, is able to accommodate the entire nominal output of the inverter. Regardless of whether the inverter has to cope with different roof orientations, shading of one or two strings, or the use of residual modules: a Fronius inverter featuring integrated SuperFlex Design will satisfy every conceivable operational PV system planning scenario using just a single inverter model.


The Dynamic Peak Manager is a new MPP tracking algorithm that dynamically adapts its behaviour when searching for the optimal operating point. Its special feature is that the Dynamic Peak Manager automatically checks the entire characteristic curve on a regular basis and finds the global Maximum Power Point (GMPP), even in partial shade.


Fronius inverters are ready for the Smart Grid of tomorrow. The inverters are optimally equipped to meet the technical requirements of grids in the future. A series of smart functions, known as Advanced Grid Features, are built into the devices. They include a number of control functions for optimum feed-in of reactive power and effective power. These functions are designed to enable stable grid operation even when the PV system density is very high and to prevent unwanted interruptions to feed-in and associated yield losses if grid parameters exceed the thresholds. Fronius inverters therefore help to guarantee the yield of a PV system. Furthermore, where feed-in limits are imposed, Fronius inverters can provide dynamic feed-in control with self-consumption taken into account. Just connect the meter and set the feed-in limit!


Today, an increasing number of grid operators in various countries are stipulating a PV power feed-in limit as a precondition before a system is connected to the grid. With dynamic power reduction, Fronius is offering a solution for optimum feed-in management. The Inverter supplies the household consumers with energy first and then reduces the system Output to the maximum energy feed-in permitted by the grid operator. With Fronius inverters, zero feed-in is also a possibility thanks to this function, meaning that no PV power is fed into the grid. The relevant requirements of the grid operator can be fulfilled by simply enabling a Setting on the inverter’s web interface.


Active cooling technology relies on one or more fans, which not only avoid hot spots, but also regulate the air circulation inside the inverter, thus keeping the temperature of the power electronics low. This has a positive effect on the service life of the devices, optimises yields and reduces costs. At Fronius, active cooling is supplied as standard in all devices.


Number of MPP trackers 2
Max. input current (Idc max)
12 / 12 A
Max. short circuit current, module array*
24 / 24 A
DC input voltage range (Udc min – Udc max)
80 – 1000 V
Feed-in start voltage (Udc start)
80 V
Nominal input voltage (Udc,r)
710 V
MPP voltage range (Umpp min – Umpp max)
200 – 800 V
Usable MPP voltage range 80 – 800 V
Number of DC connections 2 + 2
Max. PV generator power (Pdc max)
4,5 kWpeak


AC nominal output (Pac,r)
3000 W
Max. output power (Pac max)
3000 VA
AC output current (Iac nom)
13 A
Grid connection (Uac,r)
1~ NPE 220/230 V
AC voltage range (Umin – Umax)
180 – 270 V
Frequency (fr)
50 / 60 Hz
Frequency range (fmin – fmax)
45 – 65 Hz
Total harmonic distortion <3% @Pnom (230/400VAC 50Hz)
Power factor (cos φac,r)
0,85 – 1 ind,/cap,


432,5 mm
642,5 mm
205,5 mm
Weight 19,25 kg
Weight incl. packaging 25,8 kg
Degree of protection IP 65
Protection class 1
Overvoltage category (DC / AC) 1)
2 / 3
Night-time consumption < 1 W
Inverter design Transformerless
Cooling Regulated air cooling
Installation Indoors and outdoors
Ambient temperature range -40°C – +55°C
Permitted humidity 0 – 100 %
Max. altitude 2)
4,000 m
DC connection technology 4x DC+1 and 4x DC- screw terminals 2.5 – 16 mm²
AC connection technology 3-pin AC screw terminals 2.5 – 16 mm²
Certificates and compliance with standards DIN V VDE 0126-1-1/A1, IEC 62109-1/-2, IEC 62116, IEC 61727, AS 4777-2, AS 4777-3, G98/1, G99/1, CEI 0-21, VDE AR N 4105
Sound emissions 55 dB(A)
Interference emission class B


Max. efficiency (PV – grid) 98 %
European efficiency (ηEU) 96,1 %
η at 5% Pac,r 3)
80,8 / 82,5 / 82,5 %
η at 10% Pac,r 3)
84,1 / 86,5 / 86,1 %
η at 20% Pac,r 3)
90,3 / 95,5 / 94,8 %
η at 25% Pac,r 3)
91,8 / 96,4 / 95,1 %
η at 30% Pac,r 3)
92,7 / 96,9 / 96,0 %
η at 50% Pac,r 3)
94,5 / 97,4 / 97,0 %
η at 75% Pac,r 3)
95,4 / 97,9 / 97,7 %
η at 100% Pac,r 3)
95,7 / 97,9 / 97,8 %
MPP adaptation efficiency > 99,9 %


DC insulation measurement Yes
Overload behaviour Operating point shift, power limitation
DC disconnector Yes
DC Reverse polarity protection Yes


WLAN / Ethernet LAN Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON)
6 inputs and 4 digital inputs/outputs Interface to ripple control receiver
USB (type A socket) 4)
Data logging, inverter update via USB flash drive
2x RS422 (RJ45 socket) 4)
Fronius Solar Net
Signalling output 4)
Energy management (floating relay output)
Datalogger and web server Integrated
External input 4)
S0 meter connection / Evaluation of overvoltage protection
RS485 Modbus RTU SunSpec or meter connection

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