Inverter Fronius Symo 10.0-3 480 with AFCI

  • Arc Fault Circuit Interruption Integrated
  • Field Serviceable
  • SnapINverter Hinge Mounting System
  • Integrated Wi-Fi
  • SuperFlex Design
  • Smart Grid Ready
SKU 10.0-3 480 Categories ,


Recommended PV Power (kWp) 8.0 – 13.0
Max. usable input current (MPPT 1/MPPT 2) 25.0 A / 16.5 A
Max. usable input current total (MPPT 1+MPPT 2)  41.5
Max. array short circuit current (1.5 * Imax) MPP 1 / MPP 2  37.5 A / 24.8 A
Operating voltage range 200 – 1000 V
Max. input voltage 1000 V
Nominal input voltage 675 V
MPP-Voltage Range 300…800 V
Admissable conductor size DC AWG 14…AWG 6 copper direct, AWG 6 aluminum direct, AWG 4 copper or aluminum witd input combiner
Number of MPPT 2
Max. output power 9995 VA
Max. continuous output current 480  12.0 A
 Recommended OCPD/AC breaker size  15 A
Max. efficiency 98.1 %
CEC efficiency 96.5 %
Admissable conductor size AC AWG 14 – AWG 6
Grid connection 480 Delta + N*
Frequency 60 Hz
Total harmonic distortion < 1.75 %
Power factor 0 – 1 ind./cap.
Dimensions (W x H x D) 20.1 x 28.5 x 8.9 inches
Degree of protection NEMA 4X
Weight  76.7 lbs.
Nighttime consumption < 1 W
Inverter topology Transformerless
Cooling Variable speed fan
Installation Indoor and outdoor installation
Ambient operating temperature range -40 – 140* F
Permitted humidity 0 – 100 % (non condensing)
DC connection terminals 6x DC+ and 6x DC- screw terminals for copper (solid / stranded / line stranded) or aluminum (solid / stranded)
AC connection terminals Screw terminals 14-6 AWG
Certificates and compliance UL 1741-2010, UL 1998 (for functions: AFCI, GFDI and isolation monitoring), IEEE 1547-2003, IEEE 1547.1-2008, ANSI/IEEE C62.41, FCC Part 15 A & B, NEC Article 690, C22. 2 No. 107.1-01(September 2011), UL 1699B Issue 2-2013, CSA TIL M-07 Issue 1-2013
Wi-Fi / Etdernet / Serial / Datalogger and webserver Fronius Solar.web / Fronius Solar.web, SunSpec Modbus TCP, JSON / SunSpec Modbus RTU
6 inputs or 4 digital inputs/outputs External relay controls
USB (A socket) Datalogging and inverter update possible via USB
2x RS422 (RJ45 socket) Fronius Solar Net, interface protocol
AFCI Yes, included
NEC 2014 Compliant & DC disconnect Yes



Fronius is a global technology leader in the field of solar energy generation and storage solutions, as well as welding technology and battery charging technology. With a strong focus on quality, reliability, and sustainability, Fronius offers a range of innovative photovoltaic inverters, energy storage systems, and monitoring tools designed to optimize solar energy production and consumption. As a committed advocate for reducing the world's carbon footprint and promoting the use of renewable energy sources, Fronius continues to develop cutting-edge solar technology that helps customers worldwide meet their energy needs in an environmentally responsible way. With a reputation for exceptional quality, efficiency, and durability, Fronius' solar products are trusted by customers worldwide.


The future of commercial solar is now available & NEC 2014 compliant!

The transformerless Fronius Symo 12.5 kW is the ideal compact three-phase solar inverter for commercial applications wth a 480 grid connection. The SnapINverter has a slew of features fully integrated, Fronius SuperFlex Design with dual MPPT, and an installation process like no other. The hinge mounting system and lightweight inverter creates a streamlined installation that can be done under 15 minutes. Several industry-leading features are available with the Fronius Symo including Wi-Fi and SunSpec Modbus interfaces for seamless monitoring and datalogging, field proven Arc Fault Circuit Interruption (AFCI), and Fronius’ free online and mobile monitoring platform Fronius Solar.web.

Arc Fault Circuit Interruption Integrated

The Fronius Arc Fault Circuit Interruption (AFCI) is the best of its kind in the industry. The technology makes each inverter NEC 2011 compliant and maintains some of the most civilized, integrated technology available today. Ensuring the utmost safety, AFCI shuts down the inverter in the event of an arc fault.


Field Serviceable

The foundation of the unique PC board replacement process is laid as we develop our inverters, as PC boards can only be replaced if the device has been designed accordingly. This enables our Fronius Service Providers to provide the fastest inverter servicing on the market.


SnapINverter Hinge Mounting System

The special feature in the design of our devices is that the connection compartment is separate from the power stage set compartment. They are installed separately. The connection area and all its cabling is fitted to the wall first. The power stage set compartment is fitted afterwards. The innovative SnapINverter mounting system makes installation and servicing extremely user-friendly. The inverter is simply placed in the wall bracket and then secured. It is not necessary to remove the entire inverter for servicing, just the power stage set compartment. All the cabling, settings and configurations remain in place.


Integrated Wi-Fi

Simple, user-friendly system monitoring is very important to Fronius. With the Fronius Datamanager 2.0, we are the first inverter manufacturer to offer a Wi-Fi interface in the inverter itself. The inverter is connected to the internet without additional cabling and grants you the perfect overview of how the PV system is operating.


SuperFlex Design

The Fronius SuperFlex Design combines all the system design requirements into a single inverter form. Two MPP trackers combined with a high system voltage and wide input voltage range guarantee maximum flexibility. Every DC input, and therefore every MPP tracker, is able to accommodate the entire nominal output of the inverter. The result: an inverter for every application. Thanks to the SuperFlex Design, a single inverter can cope with any challenge – including different roof orientations, shading of one or two strings, or the use of residual modules.


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. These 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. Fronius inverters therefore help to guarantee the yield of a PV system.