Fronius Primo

Power generation that lasts.

With power categories ranging from 3.8 kW to 15.0 kW, the transformerless Fronius Primo is the ideal compact single-phase inverter for residential applications. The sleek design is equipped with the SnapINverter hinge mounting system which allows for lightweight, secure and convenient installation. The Fronius Primo has several integrated features that set it apart from competitors including dual powerpoint trackers, high system voltage, a wide input voltage range, Wi-Fi* and SunSpec Modbus interface, and Fronius' online and mobile monitoring platform Fronius Solar.web. The Fronius Primo also works seamlessly with the Fronius Rapid Shutdown Box for a reliable NEC 2014 690.12 and NEC 2017 690.12(B)(1) solution.

Dimension / b	512 mm
Dimension / h	751 mm
Dimension (width)	510,54 mm
Dimension (height)	723,9 mm
Dimension (depth)	226,06 mm
Weight	37,4 kg
Protection class	NEMA 4X
Night time consumption	< 1 W
Inverter topology	Transformerless
Cooling	Variable speed fan
Elevation	4000 m (13120 ft) with a max. input voltage of 1000 V
Certificates and compliance with standards	UL 1741-2010 Second Edition (incl. UL1741 Supplement SA 2016-09 for California Rule 21), UL1998 (for functions: AFCI, RCMU and isolation monitoring), IEEE 1547-2003, IEEE 1547.1-2003, ANSI/IEEE C62.41, FCC Part 15 A & B, NEC 2017 Article 690, C22. 2 No. 107.1-16, UL1699B Issue 2 -2013, CSA TIL M-07 Issue 1 -2013
DC connection terminals	4x DC+1, 2x DC+2 and 6x DC- screw terminals for copper (solid / stranded / fine stranded) or aluminum (solid / stranded)
AC connection terminals	Screw terminals 12 - 6 AWG
UL safety standards & network regulations	UL 1741-2015, UL 1998, UL 1699B Issue 2-2013

Number of MPPT	2
Recommended PV Power (kWp)	9.1 - 13.7 kW
Max. usable input current	33,0 / 18,0 A
Max. usable input current total (MPPT1 + MPPT2)	51 A
Max. array short circuit current (1.5 * Imax)	49,5 / 27 A
Nominal input voltage	660 V
Operating voltage range	80 - 1000 V
MPP Voltage Range	240 - 800 V
Max. input voltage (Udc max)	1000 V
Integrated DC string fuse holders	4- and 4+ for MPPT 1 / no fusing required on MPPT 2

Max. output power 240 V	11400 VA
Max. output power 208 V	11400 VA
Output configuration	1~ NPE 208 / 240 V
Frequency range	45 - 66 Hz
Nominal operating frequency	60 Hz
Total harmonic distortion	< 2,5 %
Power factor range	0 - 1 ind,/cap,
Max. continuous output current 240 V	47,5 A
Max. continuous output current 208 V	54,8 A
OCPD/AC breaker size 208 V	70 A
Max. efficiency	97,9 %
CEC efficiency 240 V	96,5 %

DC reverse polarity protection	Yes
Anti islanding	internal; in accordance with UL 1741-2016-09, IEEE 1547-2003 and NEC 2017
Over temperature protection	Output power derating / Active cooling
AFCI	Yes
Rapid shutdown compliant	Yes (according to NEC 2014)
Ground fault protection with isolation monitor interrupter	Yes
DC disconnect	Yes

Wi-Fi / Ethernet LAN	Wireless standard 802.1 1 b/g/n / Fronius Solar.web, SunSpec Modbus TCP, JSON 1)
USB (A socket)	Datalogging and inverter update possible via USB
2x RS422 (RJ45 socket)	Fronius Solar Net
Datalogger and webserver	Optional 1)
Serial RS485	SunSpec Modbus RTU
6 inputs and 4 digital I/Os	Load management; signaling, multipurpose I/O 1)

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