Fronius Primo 8kW Communicative Inverter

Height: 645,0 mm
Width: 431,0 mm
Depth: 204,0 mm
Weight: 21,5 kg
Degree of protection: IP 65
Protection class: 1,0
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+ 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,<br /> AS 4777-2, AS 4777-3, G83/2, G59/3, CEI 0-21, VDE AR N 4105

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


With power categories ranging from 3.0 to 8.2 kW, the Fronius Primo perfectly complements the SnapINverter generation. This single-phase, transformerless device is the ideal inverter for private households. Its innovative SuperFlex Design provides maximum flexibility in system design, while the SnapINverter mounting system makes installation and maintenance as easy as possible. The communication package included as standard with WLAN, energy management, numerous interfaces, and much more besides, makes the Fronius Primo a communicative inverter for owner-occupiers.
Number of MPP trackers: 2,0
Max. input current (Idc max):18 / 18 A
Max. short circuit current, module array:27 / 27 A
DC input voltage range (Udc min – Udc max):80 – 1000 V
Feed-in start voltage (Udc start):80,0 V
Nominal input voltage (Udc,r):710,0 V
MPP voltage range (Umpp min – Umpp max):270 – 800 V
Usable MPP voltage range: 80 – 800 V
Number of DC connections: 2 + 2
Max. PV generator power (Pdc max): 12,3 kWpeak
AC nominal output (Pac,r):8200,0 W
Max. output power (Pac max):8200,0 VA
AC output current (Iac nom):35,7 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 %
Power factor (cos φac,r):0,85 – 1 ind./cap.