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Fronius Primo 3.8-1 3.8kW Inverter

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  • 4,210,064,800
MSRP: $2,433.00
$1,400.00 (You save $1,033.00)
SKU: SLR-310-0579Z
Note: Ships LTL Freight Only
Condition: New
Weight: 47.29 LBS
Shipping: Calculated at checkout

 Product Description

Fronius 3.8KW GRID-TIED INVERTER - PRIMO 4,210,064,800

Fronius, Primo 3.8-1 208/240 TL Grid Tied Inverter, 1-Ph, 3.8kW, 208/240VAC, 60Hz, 600VDC, DC Discon, Unfused DC Input, 2 MPPT, 10 Yr Warr, Wi-Fi/Ethernet Datamanager, AFCI, UL-1741-SA (Rule-21), 4,210,064,800

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 solution and offers a Revenue Grade Metering option completely integrated.


  • Compatibility - PC board replacement process. Smart grid ready.
  • Safety - Arc Fault Circuit Interruption. SuperFlex Design.
  • User Friendly - Wi-FI Interface. SnapINverter mounting system.


General Information  
Manufacturer: Fronius
Product Line:
Model ID:
Certifications and Safety Ratings: ul.jpg csa.jpg etl.jpg


Mechanical Data
Technology: 1-Ph Grid-Tie
20.10 x 28.50 x 8.90 inches
Weight: 47.29 lbs
Protection Class: NEMA 4X
Overvoltage Category (DC/AC): < 1W
Night-Time Consumption: Transformerless
Cooling: Variable Speed Fan
Installation: Indoor & Outdoor Installation
Ambient Temperatue Range: -25 - +55 °C
DC Connection Technology: 4x DC+ and 4x DC- screw terminals for copper (solid / stranded /
fine stranded) or aluminum (solid / stranded)
AC Connection Technology: Screw Terminals 12 - 6 AWG


Electrical Data
Recommended PV Power: 3.00 - 6.00kW
Maximum Useable Input Current: 18.00 / 18.00 Amps
Minimum DC Current: 36 Amps
Maximum Array Short Circuit Current: 22.50 / 22.50 Amps
Operating Voltage Range:
80 V - 600 Volts
Maximum Input Voltage: 600 Volts
Nominal Input Voltage: 410 Volts
MPP Voltage Range: 200 V - 480 Volts
Maximum Output Power (240/208 V): 3800 Watts
Maximum Continuous Output Current (240/208 V): 15.8 A / 18.3 Amps
Recommended OCPD/AC Breaker Size (240/208 V): 20 A / 25 Amps
Maximum Efficiency: 96.7%


Document Type
logo-adobe-pdf-2.jpgFronius Primo 3.8-1 Specifications Specifications
logo-adobe-pdf-2.jpgFronius Primo 3.8-1 Installation Guide Installation Manual
Warranty 10 Year Limited Warranty
logo-adobe-pdf-2.jpgFronius Primo 3.8-1 Warranty Warranty


Terms & Conditions
Shipping: Shipping Policy
Returns: Returns Policy
Payments: We accept: Visa, MasterCard, Discover, and American Express. We also accept checks, direct deposit and wire transfers for large orders.

Fronius - Fronius Primo 3.8-1 3.8kW Inverter
Price: 1400
Condition: new
Contact Us  

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We carry everything you need for your grid-tied or off-grid system, including plans, permits and diagrams. Our Solar Panels, Inverters, Racking and Mounting are second to none in quality, reliability, efficiency and lifespan. When going solar with us, we help you every step of the way in sourcing the products that matter for your investment.

Let us design and supply your system for less using the best products in the solar energy market. We are proud to be a preferred distributor for solar installers and DIY homeowners alike.

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 Warranty Information

Warranty: 10 Year Limited Warranty

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