Fronius Primo (3.0 to 8.2 kW Hungary) Manual

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Fronius Primo Inverter Series

The Fronius Primo series of inverters is designed for private households, offering power categories from 3.0 to 8.2 kW. These single-phase, transformerless devices feature the innovative SuperFlex Design for maximum system design flexibility and the SnapINverter mounting system for easy installation and maintenance. The included communication package makes the Fronius Primo a highly communicative inverter for owner-occupiers, featuring WLAN, energy management, and various interfaces.

Models Overview:

  • Models: Primo 3.0-1, Primo 3.5-1, Primo 3.6-1, Primo 4.0-1, Primo 4.6-1, Primo 5.0-1, Primo 5.0-1 AUS, Primo 6.0-1, Primo 8.2-1
  • Design: Single-phase, transformerless
  • Mounting System: SnapINverter

Key Features:

  • SuperFlex Design: Ensures maximum flexibility in system design.
  • SnapINverter Technology: Simplifies installation and maintenance.
  • Integrated Data Communication: Includes WLAN, Ethernet LAN, and more.
  • Energy Management: Optimizes energy usage with integrated features.
  • Smart Grid Ready: Prepared for future grid requirements.
  • Zero Feed-In Design: Allows control over energy feed into the grid.

Technical Data

Input Data:

Parameter Primo 3.0-1 Primo 3.5-1 Primo 3.6-1 Primo 4.0-1 Primo 4.6-1 Primo 5.0-1 Primo 5.0-1 AUS Primo 6.0-1 Primo 8.2-1
Number of MPP Trackers 2 2 2 2 2 2 2 2 2
Max. Input Current (Idc max 1 / 2) 12.0 A / 12.0 A 12.0 A / 12.0 A 12.0 A / 12.0 A 12.0 A / 12.0 A 12.0 A / 12.0 A 12.0 A / 12.0 A 18.0 A / 18.0 A 18.0 A / 18.0 A 18.0 A / 18.0 A
Max. Array Short Circuit Current 18.0 A / 18.0 A 18.0 A / 18.0 A 18.0 A / 18.0 A 18.0 A / 18.0 A 18.0 A / 18.0 A 18.0 A / 18.0 A 27.0 A / 27.0 A 27.0 A / 27.0 A 27.0 A / 27.0 A
DC Input Voltage Range 80 - 1000 V 80 - 1000 V 80 - 1000 V 80 - 1000 V 80 - 1000 V 80 - 1000 V 80 - 1000 V 80 - 1000 V 80 - 1000 V
Feed-in Start Voltage 80 V 80 V 80 V 80 V 80 V 80 V 80 V 80 V 80 V
Usable MPP Voltage Range 80 - 800 V 80 - 800 V 80 - 800 V 80 - 800 V 80 - 800 V 80 - 800 V 80 - 800 V 80 - 800 V 80 - 800 V
Number of DC Connections 2 + 2 2 + 2 2 + 2 2 + 2 2 + 2 2 + 2 2 + 2 2 + 2 2 + 2
Max. PV Generator Output (Pdc max) 4.5 kWpeak 5.3 kWpeak 5.5 kWpeak 6.0 kWpeak 6.9 kWpeak 7.5 kWpeak 7.5 kWpeak 9.0 kWpeak 12.3 kWpeak

Output Data:

Parameter Primo 3.0-1 Primo 3.5-1 Primo 3.6-1 Primo 4.0-1 Primo 4.6-1 Primo 5.0-1 Primo 5.0-1 AUS Primo 6.0-1 Primo 8.2-1
AC Nominal Output (Pac,r) 3,000 W 3,500 W 3,680 W 4,000 W 4,600 W 5,000 W 4,600 W 6,000 W 8,200 W
Max. Output Power / Rated Apparent Power 3,000 VA 3,500 VA 3,680 VA 4,000 VA 4,600 VA 5,000 VA 5,000 VA / 4,600 VA 6,000 VA 8,200 VA
AC Output Current (Iac nom) 13.0 A 15.2 A 16.0 A 17.4 A 20.0 A 21.7 A 21.7 A 26.1 A 35.7 A
Grid Connection (Voltage Range) 1 ~ NPE 220 V / 230 V (180 V - 270 V)
Frequency (Frequency Range) 50 Hz / 60 Hz (45 - 65 Hz)
Total Harmonic Distortion < 5 %
Power Factor (cos φac,r) 0.85 - 1 ind. / cap.

General Data:

Parameter Specification
Dimensions (HxWxD) 645 x 431 x 204 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
Inverter Design Transformerless
Cooling Regulated air cooling
Installation Indoor and outdoor installation
Ambient Temperature Range -40 to +55 °C
Permitted Humidity 0 - 100 %
Max. Altitude 4,000 m
DC Connection Technology 4x DC+ and 4x DC- screw terminals 2.5 - 16 mm²
AC Connection Technology 3-pole 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
Country of Manufacture Austria

Efficiency:

Parameter Primo 3.0-1 Primo 3.5-1 Primo 3.6-1 Primo 4.0-1 Primo 4.6-1 Primo 5.0-1 Primo 5.0-1 AUS Primo 6.0-1 Primo 8.2-1
Max. Efficiency 98.0 % 98.0 % 98.0 % 98.1 % 98.1 % 98.1 % 98.1 % 98.1 % 98.1 %
European Efficiency (ηEU) 96.1 % 96.8 % 96.8 % 97.0 % 97.0 % 97.1 % 97.1 % 97.3 % 97.5 %
MPP Adaptation Efficiency > 99.9 % > 99.9 % > 99.9 % > 99.9 % > 99.9 % > 99.9 % > 99.9 % > 99.9 % > 99.9 %

Protective Devices:

Parameter Specification
DC Insulation Measurement Yes
Overload Behaviour Operating point shift, power limitation
DC Disconnector Yes
Reverse Polarity Protection Yes
RCMU Yes

Interfaces:

Parameter Specification
WLAN / Ethernet LAN Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON)
6 Inputs and 4 Digital In/Out Interface to ripple control receiver
USB (A Socket) Datalogging, inverter update via USB flash drive
2x RS422 (RJ45 Socket) Fronius Solar Net
Signalling Output Energy management (potential-free relay output)
Datalogger and Webserver Included
External Input S0-Meter Interface / Input for overvoltage protection
RS485 Modbus RTU SunSpec or meter connection