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*Excludes Air Conditioners & Sale Items

3.0kW FRONIUS PRIMO Solar Inverter

SKU Fronius-3kw Category Tags ,

3.0kW Fronius Primo Inverter. The communicative inverter for optimised energy management. Featuring SnapINverter Technology, Integrated Data Communication, Superflex Design, Dynamic Peak Manager, Smart Grid Ready, Zero Feed-In and Active Cooling.

5.0kW and 8.2kW models arriving soon!!

Product is supply only

$2,000.00 (inc GST)

5.0kW and 8.2kW models arriving soon!

Fronius Primo Inverter (3.0kw)

The communicative inverter for optimised energy management. The Fronius Primo Inverter perfectly completes the Snap Inverter generation. This single-phase, transformer less device is the ideal inverter for private households. Its innovative Super Flex Design provides maximum flexibility in system design, while the Snap Inverter mounting system makes installation and maintenance easier than ever before. The communication package included as standard, with WLAN, energy management, several interfaces and much more besides, makes the Fronius Primo a communicative inverter for owner-occupiers.

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.

Integrated Data Communication

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.

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.

Need Help with an Installation?

This is a supply only product. If you need help installing your new invertor, contact Future NRG to arrange an installation consultation. Keep up to date with our latest energy saving technology installations.



Number of MPP trackers
Max. input current (Idc max)
12 / 12 A
Max. short circuit current, module array
18 / 18 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
< 5 % 5=”” %=””>
Power factor (cos φac,r)
0,85 – 1 ind./cap.


Width 431 mm
Weight 21,5 kg
Degree of protection IP 65
Protection class 1
Overvoltage category (DC / AC) 1)
2 / 3
Night-time consumption < 1 w 1=””>
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, G83/2, G59/3, CEI 0-21, VDE AR N 4105


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


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

Supply Only

Supply Only Product

Please note that this product is a supply only purchase. By buying this product, you are purchasing the product only. Once you receive the product, you will need to arrange an installation where appropriate.

If you need help with an installation, get in touch with Future NRG. Future NRG are accredited and certified installers of energy saving technology including solar power systems, energy efficient heating and cooling and hot water systems. Contact our sales team to arrange an installation consultation. We’ll get you up and running and enjoying the energy saving benefits of your new gear.

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