Fronius Inverter
- Snapinverter Technology
- Integrated Data Communication
- Superflex Design
- Dynamic Peak Manager
- Smart Grid Ready
- Zero Feed-in
- Active Cooling
FRONIUS INVERTERS AUSTRALIA
Fronius inverters are known for their high efficiency and reliability in the Australian market. They serve as the essential core of every solar power system. With power ratings ranging from 1.5 to 27.0 kW, these inverters are suitable for a wide range of system sizes, making them suitable for everything from residential homes to large-scale solar installations.
Origins of Fronius
The journey began in the picturesque Austrian town of Pettenbach, where our headquarters still proudly stand. Günter Fronius established his presence here by transforming an old military barracks into his workplace in exchange for some repair work.
Back in those days, charging car batteries was not as commonplace as it is today, and this didn’t sit well with Günter. As a trained electrical engineer, he took it upon himself to create simple battery chargers with the resources available to him. This technology laid the foundation for his expansion into welding transformers in 1950. Over the ensuing decades, Fronius evolved into a highly regarded medium-sized company.
In 1980, Günter Fronius passed the reins of the company to his children, Brigitte Strauß and Klaus Fronius. They embarked on a strategy of growth and global outreach, establishing numerous subsidiaries worldwide.
In the early 1990s, the company placed a significant focus on the then-nascent field of solar energy, a move that some initially considered a mere pipe dream. However, this sector has since matured into a substantial part of the business.
Today, Fronius stands on three sturdy pillars: Solar Energy, Perfect Welding, and Perfect Charging.
In 2012, the company’s leadership transitioned to the next generation: Elisabeth Engelbrechtsmüller-Strauß. As the granddaughter of the company’s founder, she has continued to steer the company towards growth while staying true to the core values of innovation, quality, and service.
This commitment to innovation has led Fronius to continually explore cutting-edge technologies, involving more than 5,400 professionals in over 30 countries worldwide. Our mission is crystal clear: to research and harness electricity as the fuel of the future.
In simple terms, Fronius develops products that convert solar energy into usable electricity, provide new energy sources for battery-powered logistics vehicles, and revolutionize welding processes using electricity from conventional outlets.
While the fundamental concept has endured, the years have brought forth countless opportunities for transformation. Fronius has evolved from being “just” a manufacturer to a recognized high-tech enterprise. All our products are now intricately tied to highly sophisticated software solutions, data management systems, and user-friendly apps. Our intellectual property is evident in our portfolio of 1,264 patents.
SNAPINVERTER TECHNOLOGY
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.
INTEGRATED DATA COMMUNICATION
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.
SUPERFLEX DESIGN
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.
DYNAMIC PEAK MANAGER
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.
SMART GRID READY
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!
ZERO FEED-IN
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
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.
INPUT DATA
| 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 |
OUTPUT DATA
|
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, |
GENERAL DATA
|
Width
|
432,5 mm |
|---|---|
|
Height
|
642,5 mm |
|
Depth
|
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 |
EFFICIENCY
| 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 % |
PROTECTION DEVICES
| DC insulation measurement | Yes |
|---|---|
| Overload behaviour | Operating point shift, power limitation |
| DC disconnector | Yes |
| DC Reverse polarity protection | Yes |
INTERFACES
| 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 |
