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Fronius PRIMO 12.5-1 1PH 12000W 208/240VAC /DC-Disconnect /AFCI /Non-Isolated /WiFi /TL

Listed Price:
$3,900.00 (Save $915.00)
New Price:
081 - 19075
87.00 LBS
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Price break down: 0.24 $/W - $2985.00/12000W

Product Overview

Fronius PRIMO 12.5-1-TL 1PH 12000W 208/240VAC /DC-Disconnect /AFCI /Non-Isolated /WiFi /TL

The Fronius Primo has several integrated features that set it apart from competitors including dual power-point trackers (Dual MPPT), high system voltage, a wide input voltage range and unrestricted use indoors and outdoors.

Other standard features include a Wi-Fi and Sun-Spec Modbus interface for seamless monitoring and data-logging, Arc Fault Circuit Interruption (AFCI), integrated fuse holders and Fronius’s superb online and mobile platform Fronius Solar.web.

It also works seamlessly with the Fronius Rapid Shutdown Box for a reliable NEC 2014 solution. This great solution is now also available with a Revenue Grade Metering option, completely integrated.

One of the options for Fronius Primo is a Revenue Grade Meter integrated in the inverter box. Fronius is introducing the first CSA certified residential inverter which provides standard revenue grade meter production right out of the box. The Fronius Primo with the Revenue Grade Meter option measures and exports production data that is compliant with ANSI C12.1 accuracy standards.

Main Features:-

  Internal Arc Fault Circuit Interrupter (AFCI) for added safety per NEC 2011,
  Wi-Fi communications card included,
  Two MPP tracker systems: MPPT1 and MPPT2,
  Operating temperatures of -40 °F to +140°F ,
  Active and reactive power control, low voltage ride-through,
  Field configurable for either positive or negative ground PV arrays,
  Smart Grid Ready as Advanced Grid Features are built into,
  SnapINverter Hinge Mounting System,
  Listed to UL 1741-2010 and UL 1699B for U.S. and Canada.

Compliant with:-

  UL 1741-2015,
  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 Article 690-2014,
  C22. 2 No. 107.1-01 (September 2001),
  UL1699B Issue 2 -2013,
  CSA TIL M-07,
  Issue 1 -2013,

Before you buy be aware of the return policy conditions and read the manufacturer warranty.

General Specifications:-


  Number of MPPT: 2,0.
  Recommended PV Power (kWp): 10.0 - 15.0 kW.
  Max. usable input current: 33,0 / 18,0 A.
  Max. usable input current total (MPPT1 + MPPT2): 51,0 A.
  Max. array short circuit current (1.5 * Imax): 49,5 / 27 A.
  Nominal input voltage: 425 V.
  Operating voltage range: 80 - 600 V.
  DC startup voltage: 80,0 V.
  MPP Voltage Range: 260 - 480 V.
  Max. input voltage: 600 V.
  Admissible conductor size (DC): AWG 14 - AWG 6 copper direct, AWG 6 aluminum direct (AWG 10 copper or AWG 8 aluminium for overcurrent protective devices up to 60A, from 61 to 100A minimum AWG 8 for copper or AWG 6 aluminium has to be used), AWG 4 - AWG 2 copper or aluminum with optional input combiner.
  Integrated DC string fuse holders: 4- and 4+ for MPPT 1 / no fusing required on MPPT 2.
  Admissible conductor size (AC): AWG 10 - AWG 2 copper (solid / stranded / fine stranded)(AWG 10 copper or AWG 8 aluminium for overcurrent protective devices up to 60A, from 61 to 100A minimum AWG 8 for copper or AWG 6 aluminium has to be used) , AWG 6 - AWG 2 copper(solid / stranded) MultiContactWiringable with AWG 12.


  Max. output power 240 V 12500 VA.
  Max. output power 208 V 12500 VA.

Output configuration

  1~ NPE 208 / 240 V.
  Frequency range 45 - 66 Hz.
  Nominal operating frequency 60,0 Hz.
  Total harmonic distortion < 2,5 %.
  Power factor range: 0 - 1 ind./cap..
  Max. continuous output current 240 V 52,1 A.
  Max. continuous output current 208 V 60,1 A.
  OCPD/AC breaker size 240 V 70 A.
  OCPD/AC breaker size 208 V 80 A.
  Max. efficiency 97,9 %.
  CEC efficiency 240 V 96,5 %.


  Dimension (width): 1,68 ft.
  Dimension (height): 2,38 ft.
  Dimension (depth): 8,9 in.
  Weight: 82,47 lbs.
  Protection class: NEMA 4X.
  Night time consumption: < 1 W.
  Inverter topology: Transformerless.
  Cooling: Variable speed fan.
  Ambient operating temperature range: -40°C - +60°C.
  Permitted relative humidity: 0 - 100 %.


  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.
  USB (A socket) Datalogging and inverter update possible via USB.
  2x RS422 (RJ45 socket) Fronius Solar Net.
  Datalogger and webserver Included.
  Serial RS485 SunSpec Modbus RTU.
  6 inputs and 4 digital I/Os Load management; signaling, multipurpose I/O.


[ Tech Support ]  Product Video(s) & Knowledge Base Information
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Product Related Documents

By engaging the links above you will download a copy of the documents on your machine. The documents must be used for their informational purpose only. We regularly update the product documentation based on the last release from the manufacturer.

Product Warranty Information

Warranty: 10 year Premium Warranty is standard.

30 Days Return CEB Return Policy - Important: Condition apply: like original packing, original sealed, never connected to grid or PV array or never mounted !

30 Days Return CEB Return Policy - Important: Condition apply: like original packing, original sealed, never connected to load or mounted on a support or installed in an enclosure.

Product Returns Policy (extras)

From CEB Return Policy Extras

Most of unused products can be returned back to us for a replacement or refund within 30 days of receipt. All returned items must be in new condition with all original packaging, paperwork and accessories supplied. All returns have to be send back via a traceable method such as Fed Ex, DHL, Purolator and USPS or similar. Return freight and original shipping are non-refundable.

All special orders, electrical appliances, appliances of any nature, items returned without original packaging or packing materials, and items sent directly from the manufacturer may be subject to a restocking fee of 10-25%. Please call us before you perform your return in order for us to issue an RMA prior any shipping is undergoing.

Please include your order number along with RMA issued by one of our staff. Without an order number and an RMA number, it will be very difficult to trace the order for the returned merchandise associated with and all the process will drag for weeks or month to come. In order to complete the return procedures please fill in the forms and follow our instructions.

All returns must be in their ORIGINAL PACKAGING, in a resalable condition. Any packaging materials, CDs, software, accessories, manuals, warranty cards and documentation originally sent must be included in the package. In the event that a package is returned and does not meet the guidelines we’ve listed above, CleanEnergyBrands reserves the right not to honour the return.

Return Merchandise Authorization(RMA):-

In order to process our customers’ returns as quickly and successfully as possible, we require ALL returns to be accompanied by an RMA so please be sure to contacting us before returning any items. To obtain your RMA and any additional return info you may need, please call our friendly, ready-to-help support team toll-free at 1.800.339.9171 or email us at returns@cleanenergybrands.com

Because we want your return experience to be as hassle-free as possible, we strongly recommend that you fully insure your return shipment so that you’re well protected in the event that the package is lost or damaged in transit. UPS & FedEx provide traceable shipments, complete with a proof-of-delivery feature that guarantees that your package is delivered to the intended location. We urge you to use a carrier that has both tracking and proof-of-delivery capabilities and that you retain that tracking number. Please be advised that postage charges are non-refundable, and that Clean Energy Brands is not responsible for any packages lost or damaged during transit. This includes packages sent via USPS to an international or overseas destination.

Defective Product; Incorrect Product:-

Please call for an RMA so we will arrange for a return for the defective/incorrect item and replace that at no cost to you. The item must include its original packaging and as-new in pristin conditions with the packing slip, all warranty cards, and accessories included.

For more information consult "Returns Refunds" policy. Follow this link!

30 Days Return CEB Return Policy - Important: Condition apply: like original packing, original sealed, never connected to load or mounted on a support or installed in an enclosure.

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