Fronius Primo UL
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.
Please choose your desired product.
Technical Data
Input Data
| Number of MPP trackers | 2 |
|---|---|
| Recommended PV Power (kWp) | 8.0 - 12.0 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 (Udc,r) | 415 V |
DC input voltage range (Udc min - Udc max) | 80 - 600 V |
MPP voltage range (Umpp min - Umpp max) | 220 - 480 V |
| Max. input voltage | 1000 V |
| Integrated DC string fuse holders | 4- and 4+ for MPPT 1 / no fusing required on MPPT 2 |
Output Data
| Max. output power 240 V | 9995 VA |
|---|---|
| Max. output power 208 V | 9995 VA |
Output configuration | 1~ NPE 208 / 240 V |
| Frequency range | 45 - 66 Hz |
| Frequency | 60 Hz |
| Total harmonic distortion | < 2,5 % |
Power factor range | 0 - 1 ind./cap. |
| Max. continuous output current 240 V | 41,6 A |
| Max. continuous output current 208 V | 48,1 A |
| OCPD/AC breaker size 208 V | 70 A |
| Max. efficiency | 97,9 % |
| CEC efficiency 240 V | 96,5 % |
General Data
| UL safety standards & network regulations | UL 1741-2015, UL 1998, UL 1699B Issue 2-2013 |
|---|---|
| Dimension / width | 1,68 ft |
| Dimension / height | 2,46 ft |
| Dimension / depth | 8,96 in |
| Weight incl. packaging | 99,21 lb |
| Weight | 82,45 lb |
| Degree of protection | NEMA 4X |
| Night-time consumption | < 1 W |
| Inverter design | Transformerless |
| Cooling | Variable speed fan |
| Max. altitude | 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 technology | 4x DC+1, 2x DC+2 and 6x DC- screw terminals for copper (solid / stranded / fine stranded) or aluminum (solid / stranded) |
| AC connection technology | Screw terminals 12 - 6 AWG |
| Revenue Grade Metering | Optional (ANSI C12.1 accuracy) |
| Interference emission class | B |
Protection Devices
| 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 disconnector | Yes |
Interfaces
| Wi-Fi / Ethernet LAN | Wireless standard 802.1 1 b/g/n / Fronius Solar.web, SunSpec Modbus TCP, JSON 1) |
|---|---|
| USB (type A socket) | Datalogging and inverter update possible via USB |
| 2x RS422 (RJ45 socket) | Fronius Solar Net |
| Datalogger and web server | Optional 1) |
| RS485 | SunSpec Modbus RTU |
| 6 inputs and 4 digital I/Os | Load management signaling, multipurpose I/O 1) |
SnapINverter technology
The Fronius SnapINverter generation features a simple, standardized hinged mounting system that makes installation and service easier than ever. The inverters consist of two main parts: the power stage and the connection compartment, ensuring a convenient installation process. First, you mount the remarkably lightweight connection compartment and all wiring to the wall. Then simply snap the power stage in - allowing for installation within 15 minutes by only 1 person! Furthermore, installers don’t need to remove the entire inverter for servicing. Just take the power stage and leave all wires in place, making the Fronius SnapINverters the most user-friendly inverters on the market.
Integrated data communication
Fronius believes that every solar system should be monitored. Therefore, we offer integrated data communication capabilities for all our inverters and free online monitoring with Fronius Solar.web. Simply connect the inverter to the internet via Wi-Fi and use our Modbus TCP SunSpec, Modbus RTU SunSpec or Fronius Solar API (JSON) interface for seamless data communication to third parties. The different interfaces can be operated in parallel to the Fronius Solar.web online platform. The monitoring is easily set up via our smartphone app - it's so easy, even the home owner can do it.
Design Flexibility
Fronius inverters offer great design flexibility, giving you all the options you need and making system design extremely simple. Two independent MPP trackers, wide DC input voltage windows and oversizing of up to 150% make the inverters suitable for complex roofs, different array sizes and multiple orientations. The Fronius Design Flexibility offers a solution for all your system design needs
Smart Grid Ready
Fronius inverters enable the grid of tomorrow. Our inverters are already equipped to meet the technical requirements of a smart grid of the future. A set of smart functions, known as Advanced Grid Features, are built into the inverters. They include a wide range of control functions for dynamic feed-in of both effective and reactive power. These functions are designed to enable a stable grid and highest solar density, while preventing unwanted system shutdowns if grid parameters exceed their thresholds.
Arc Fault Circuit Interruption Integrated
The Fronius Arc Fault Circuit Interruption (AFCI) makes each inverter NEC 2011 compliant and offers a best-in-class solution for detecting arcs. Ensuring the utmost safety, AFCI shuts down the inverter in the event of an arc fault within your solar system.
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.Footnotes for technical data
*) Inverter rated for up to 1000 V open-circuit. Nominal, Operating, and MPP voltages based on 600 V system design. Actual DC system voltage is dependent on PV string-sizing, not inverter input capacity.
1) These features are available on the Primo Lite with the additional purchase and installation of a Datamanager 2.0