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3.8kW Primo Single-Phase Inverter From Fronius

$1,395.00
  • $976.50 With 30% Federal Tax Credit*

  • Additional State Tax Incentives May Be Available*
  • Lowest Price Guaranteed
  • Ships in 2-4 Business Days
  • Warranty: 10 Years - Extendable to 20 Years
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* Educational purpose only. Please consult a tax professional on all tax matters.

The Fronius Primo inverter series has been specially developed for the demands of the North American market. With power categories from 3.8 to 15 kW, the single-phase, transformerless device is the perfect inverter for private households. Its innovative SuperFlex Design provides maximum flexibility in system design, while the SnapINverter mounting system makes installation and maintenance as easy as possible.

The communication package included as standard, with WLAN, energy management, several interfaces and much more besides, makes the Fronius Primo a communicative inverter for home owners. Standard equipment also includes a built-in arc detector (AFCI = Arc Fault Circuit Interrupter), in keeping with all other North American SnapINverters.

PDF Downloads

TECHNICAL DATA:

INPUT DATA

Number of MPPT 2,0
Recommended PV Power (kWp) 3,0 - 6,0 kWp
Max. usable input current 18,0 / 18,0 A
Max. usable input current total (MPPT1 + MPPT2) 36,0 A
Max. array short circuit current (1.5 * Imax) 27 / 27 A
Nominal input voltage

410,0 V

Operating voltage range

80 - 1000 V

DC startup voltage 80,0 V
MPP Voltage Range 200 - 800 V
Max. input voltage 1000 V
Admissible conductor size (DC) AWG 14 - AWG 6
Admissible conductor size (AC) AWG 14 - AWG 6

OUTPUT DATA

Max. output power 240 V 3800 VA
Max. output power 208 V 3800 VA
Output configuration 1~ NPE 208 / 240 V
Frequency range 45 - 65 Hz
Nominal operating frequency

60,0 Hz

Total harmonic distortion < 5 %
Power factor range 0,85 - 1 ind./cap.
Max. continuous output current 240 V 15,8 A
Max. continuous output current 208 V 18,3 A
OCPD/AC breaker size 240 V 20 A
OCPD/AC breaker size 208 V 20 A
Max. efficiency 96,7 %
CEC efficiency 240 V 95,0 %
CEC efficiency 208 V 95,0 %

GENERAL DATA

Dimension (width) 429,0 mm
Dimension (height) 627,0 mm
Dimension (depth) 206,0 mm
Weight 21,5 kg
Protection class NEMA 4X
Night time consumption

< 1 W

Inverter topology Transformerless
Cooling Variable speed fan
Ambient operating temperature range -40°C - +50°C
Permitted relative humidity 0 - 100 %
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 and Hawaiian Electric Code Rule 14H), 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+ and 4x DC- screw terminals for copper (solid/stranded/fine stranded) or aluminium (solid/stranded)
AC connection terminals Screw terminals 12 - 6 AWG
Revenue Grade Metering Optional (ANSI C12.1 accuracy)

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 disconnect Yes

INTERFACES

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

 

 

Available Fronius Primo Models

Shipping
 This Item Ships to 
Delivery

Estimated between  and

Shipping Policy:

When you place an order, you will receive a confirmation email of that order. This indicates that we have received your order in our system. Once your order has been received, we will contact our suppliers to determine whether that item is in stock and available to ship.

If your purchased item(s) are unavailable, we will notify you of other options that are available. If the item(s) are available for shipment (usually in 5 business days or less), we will inform our suppliers to ship the order directly to you.

Once we have confirmed that the order is in stock, we will email you the tracking number within one business day of your order leaving the warehouse. If you do not receive an email with the tracking information from us within 7 business days from when you placed the order, please follow up with us at orders@SolarTechDirect.com.

Most orders are shipped via UPS or FedEx ground shipping to your designated shipping address. Larger items, such as solar panels (150W and above) and water heating tanks, must ship by freight, which is very costly. These items are not eligible for free shipping.

When the shipment arrives, the driver will ask you to sign for the delivery. This is a legal document stating that the package is being delivered in good condition without damage and that you are waiving any additional claim from the shipper. Before signing, inspect the package(s) closely on all sides. Note any damage, including scuffs, dents, tears, punctures or creases on the delivery receipt. If you sign for damaged goods without making a damage notation, we may not be able to help you persue a damage claim. Your signature on a shipping receipt is a legal release of claim for damage unless noted at the time of receipt. So check your delivery carefully.

If there is anything unusual with the package, you have the right to open it to inspect the contents. If the driver is unwilling to wait while you inspect all of the items, you may mark on the delivery receipt “Concealed Damage Possible”. If there is damage to the shipment, then you must contact SolarTech Direct immediately.

Order Cancellation Policy:

A $50 administration fee will be applied if you cancel your order after 48 hours regardless if your order has been shipped or not. If the supplier has shipped your order, you (the purchaser) will have to pay the shipping charges for returning the product plus a 15% restocking fee. We will only issue refunds to the credit card you used to place the order.

Return Policy:

We hope you are satisfied with your purchase from SolarTech Direct. You may return most items for a full refund, minus shipping and handling charges and a 15% restocking fee, within 30 days after purchase. All items must be unused and in original condition in the original packaging. Special orders and custom built orders are not returnable. If shipping charges were part of your order, they are not refundable. Please see section below for items that are not eligible for returns.

Customer returns for items received as part of a "free shipping" offer will be credited for the amount of the returned items less actual outbound shipping charges paid by us and any restocking fee and other costs as mentioned above that may apply.

Please email us at returns@solartechdirect.com to receive a Return Merchant Authorization (RMA) number. Returns will not be processed without an RMA. We will also provide you with the address to return the item. Please note, you will be responsible for the return shipping and handling costs. 

Items Not Eligible for Returns:

Due to the sensitive nature of the equipment we distribute and the potential risks to personal and public safety and property, we are unable to accept the return of any product from the below manufacturers which has left the warehouse, unless it involves the following: error on our part, carrier damage, defective product, incorrect product or extra product you did not order. 

  • APsystems
  • Axitec
  • Canadian Solar
  • Enphase
  • Fronius
  • Itek Energy
  • Japan Solar
  • Jinko Solar
  • Mission Solar
  • Panasonic
  • Peimar
  • Silfab Solar
  • SolarEdge
  • Trina Solar 

Why Buy from SolarTech Direct?

The entire team at SolarTech Direct is committed to your satisfaction and that you have the best customer experience as possible. We welcome any and all questions you have about the products on our website.

Here are the top 9 reasons to purchase from SolarTech Direct:

1. Safe, secure ordering
We guarantee that every transaction you make is 100% secure. We use the industry standard encryption protocol known as Secure Socket Layer (SSL), to keep your order information secure. This means all of your personal information, including your credit card number, name and address, cannot be read by anyone except as provided in our Privacy Policy.

2. Price guarantee
We guarantee that we offer the best prices online. If you come across another online retailer that sells the same item at a lower price within one month of purchase, please let us know, and in most cases, we'll refund the original payment for the difference in price. Learn more about our price guarantee here.

3. Free shipping
Free Ground Shipping within the Continental U.S. for all orders over $100 from the following brands: Heliatos, Photos, Renogy, Zamp Solar

4. Customer service
This is a top priority for us. We’re here for you, and we’re committed to delivering a WOW experience. You can expect fast communication from us, and we will respond to all inquiries from our paying customers within 24 hours, excluding weekends and holidays. When you place your order, you will receive a confirmation email from us immediately. We will also immediately notify you when your product has shipped, and you’ll receive a tracking number right away.

5. Volume discounts
If you need to purchase a large quantity of items, please send us an email at sales@solartechdirect.com and we can negotiate special pricing for your volume order.

6. Easy returns
You may return most items for a full refund, minus shipping charges and a 15% restocking fee, within 30 days after purchase. All items must be unused and in original condition in the original packaging. We'll pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). For more details, see our Shipping & Return policy page.

7. Quality
We’ve hand selected only those manufacturers that deliver high quality, reliable and durable products. We’ve researched customer reviews on their products, and that the products have passed rigorous testing standards. All items have been inspected before leaving the warehouses.

8. Minority-owned & operated
For corporations, government (local, state, federal), and government prime contractors, purchasing from us will help meet your goals of supplier diversity.

9. Social impact
We are committed to making a positive impact in the world. When you purchase from us, a portion of our profits will be donated to our non-profit partners GRID Alternatives and Solar Saves Lives. Learn more about our corporate philanthropy here. 

Financing Options

We understand that purchasing solar is a huge investment. We don't want financing to be a barrier towards purchasing your solar product that can help you save money in the long run while becoming energy independent. We are happy to provide you with the following financing options through our partners:


Paypal Credit: No Payments + No Interest if paid in full in 6 months on purchases of $99 or more. Buying with the power to pay as you choose and still enjoying the security and reliability of PayPal...now that’s magic!

 

LightStream: Loans available from $5,000 to $100,000 with flexible loan terms. No fees, no origination fees, no application fees, no prepayment penalties/fees. Fast, easy application, approval and activation.


Prosper.com Personal Loans

Prosper: Loans made simple with low interest rate. Offers single monthly payment with no hidden fees or prepayment penalties. Checking your rate won't affect your credit score.

The Fronius Primo inverter series has been specially developed for the demands of the North American market. With power categories from 3.8 to 15 kW, the single-phase, transformerless device is the perfect inverter for private households. Its innovative SuperFlex Design provides maximum flexibility in system design, while the SnapINverter mounting system makes installation and maintenance as easy as possible.

The communication package included as standard, with WLAN, energy management, several interfaces and much more besides, makes the Fronius Primo a communicative inverter for home owners. Standard equipment also includes a built-in arc detector (AFCI = Arc Fault Circuit Interrupter), in keeping with all other North American SnapINverters.

PDF Downloads

TECHNICAL DATA:

INPUT DATA

Number of MPPT 2,0
Recommended PV Power (kWp) 3,0 - 6,0 kWp
Max. usable input current 18,0 / 18,0 A
Max. usable input current total (MPPT1 + MPPT2) 36,0 A
Max. array short circuit current (1.5 * Imax) 27 / 27 A
Nominal input voltage

410,0 V

Operating voltage range

80 - 1000 V

DC startup voltage 80,0 V
MPP Voltage Range 200 - 800 V
Max. input voltage 1000 V
Admissible conductor size (DC) AWG 14 - AWG 6
Admissible conductor size (AC) AWG 14 - AWG 6

OUTPUT DATA

Max. output power 240 V 3800 VA
Max. output power 208 V 3800 VA
Output configuration 1~ NPE 208 / 240 V
Frequency range 45 - 65 Hz
Nominal operating frequency

60,0 Hz

Total harmonic distortion < 5 %
Power factor range 0,85 - 1 ind./cap.
Max. continuous output current 240 V 15,8 A
Max. continuous output current 208 V 18,3 A
OCPD/AC breaker size 240 V 20 A
OCPD/AC breaker size 208 V 20 A
Max. efficiency 96,7 %
CEC efficiency 240 V 95,0 %
CEC efficiency 208 V 95,0 %

GENERAL DATA

Dimension (width) 429,0 mm
Dimension (height) 627,0 mm
Dimension (depth) 206,0 mm
Weight 21,5 kg
Protection class NEMA 4X
Night time consumption

< 1 W

Inverter topology Transformerless
Cooling Variable speed fan
Ambient operating temperature range -40°C - +50°C
Permitted relative humidity 0 - 100 %
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 and Hawaiian Electric Code Rule 14H), 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+ and 4x DC- screw terminals for copper (solid/stranded/fine stranded) or aluminium (solid/stranded)
AC connection terminals Screw terminals 12 - 6 AWG
Revenue Grade Metering Optional (ANSI C12.1 accuracy)

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 disconnect Yes

INTERFACES

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

 

 

Available Fronius Primo Models

Shipping
This Item Ships to   
Delivery

Estimated between  and

Shipping Policy:

When you place an order, you will receive a confirmation email of that order. This indicates that we have received your order in our system. Once your order has been received, we will contact our suppliers to determine whether that item is in stock and available to ship.

If your purchased item(s) are unavailable, we will notify you of other options that are available. If the item(s) are available for shipment (usually in 5 business days or less), we will inform our suppliers to ship the order directly to you.

Once we have confirmed that the order is in stock, we will email you the tracking number within one business day of your order leaving the warehouse. If you do not receive an email with the tracking information from us within 7 business days from when you placed the order, please follow up with us at orders@SolarTechDirect.com.

Most orders are shipped via UPS or FedEx ground shipping to your designated shipping address. Larger items, such as solar panels (150W and above) and water heating tanks, must ship by freight, which is very costly. These items are not eligible for free shipping.

When the shipment arrives, the driver will ask you to sign for the delivery. This is a legal document stating that the package is being delivered in good condition without damage and that you are waiving any additional claim from the shipper. Before signing, inspect the package(s) closely on all sides. Note any damage, including scuffs, dents, tears, punctures or creases on the delivery receipt. If you sign for damaged goods without making a damage notation, we may not be able to help you persue a damage claim. Your signature on a shipping receipt is a legal release of claim for damage unless noted at the time of receipt. So check your delivery carefully.

If there is anything unusual with the package, you have the right to open it to inspect the contents. If the driver is unwilling to wait while you inspect all of the items, you may mark on the delivery receipt “Concealed Damage Possible”. If there is damage to the shipment, then you must contact SolarTech Direct immediately.

Order Cancellation Policy:

A $50 administration fee will be applied if you cancel your order after 48 hours regardless if your order has been shipped or not. If the supplier has shipped your order, you (the purchaser) will have to pay the shipping charges for returning the product plus a 15% restocking fee. We will only issue refunds to the credit card you used to place the order.

Return Policy:

We hope you are satisfied with your purchase from SolarTech Direct. You may return most items for a full refund, minus shipping and handling charges and a 15% restocking fee, within 30 days after purchase. All items must be unused and in original condition in the original packaging. Special orders and custom built orders are not returnable. If shipping charges were part of your order, they are not refundable. Please see section below for items that are not eligible for returns.

Customer returns for items received as part of a "free shipping" offer will be credited for the amount of the returned items less actual outbound shipping charges paid by us and any restocking fee and other costs as mentioned above that may apply.

Please email us at returns@solartechdirect.com to receive a Return Merchant Authorization (RMA) number. Returns will not be processed without an RMA. We will also provide you with the address to return the item. Please note, you will be responsible for the return shipping and handling costs. 

Items Not Eligible for Returns:

Due to the sensitive nature of the equipment we distribute and the potential risks to personal and public safety and property, we are unable to accept the return of any product from the below manufacturers which has left the warehouse, unless it involves the following: error on our part, carrier damage, defective product, incorrect product or extra product you did not order. 

  • APsystems
  • Axitec
  • Canadian Solar
  • Enphase
  • Fronius
  • Itek Energy
  • Japan Solar
  • Jinko Solar
  • Mission Solar
  • Panasonic
  • Peimar
  • Silfab Solar
  • SolarEdge
  • Trina Solar 

Why Buy from SolarTech Direct?

The entire team at SolarTech Direct is committed to your satisfaction and that you have the best customer experience as possible. We welcome any and all questions you have about the products on our website.

Here are the top 9 reasons to purchase from SolarTech Direct:

1. Safe, secure ordering
We guarantee that every transaction you make is 100% secure. We use the industry standard encryption protocol known as Secure Socket Layer (SSL), to keep your order information secure. This means all of your personal information, including your credit card number, name and address, cannot be read by anyone except as provided in our Privacy Policy.

2. Price guarantee
We guarantee that we offer the best prices online. If you come across another online retailer that sells the same item at a lower price within one month of purchase, please let us know, and in most cases, we'll refund the original payment for the difference in price. Learn more about our price guarantee here.

3. Free shipping
Free Ground Shipping within the Continental U.S. for all orders over $100 from the following brands: Heliatos, Photos, Renogy, Zamp Solar

4. Customer service
This is a top priority for us. We’re here for you, and we’re committed to delivering a WOW experience. You can expect fast communication from us, and we will respond to all inquiries from our paying customers within 24 hours, excluding weekends and holidays. When you place your order, you will receive a confirmation email from us immediately. We will also immediately notify you when your product has shipped, and you’ll receive a tracking number right away.

5. Volume discounts
If you need to purchase a large quantity of items, please send us an email at sales@solartechdirect.com and we can negotiate special pricing for your volume order.

6. Easy returns
You may return most items for a full refund, minus shipping charges and a 15% restocking fee, within 30 days after purchase. All items must be unused and in original condition in the original packaging. We'll pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). For more details, see our Shipping & Return policy page.

7. Quality
We’ve hand selected only those manufacturers that deliver high quality, reliable and durable products. We’ve researched customer reviews on their products, and that the products have passed rigorous testing standards. All items have been inspected before leaving the warehouses.

8. Minority-owned & operated
For corporations, government (local, state, federal), and government prime contractors, purchasing from us will help meet your goals of supplier diversity.

9. Social impact
We are committed to making a positive impact in the world. When you purchase from us, a portion of our profits will be donated to our non-profit partners GRID Alternatives and Solar Saves Lives. Learn more about our corporate philanthropy here. 

Financing Options

We understand that purchasing solar is a huge investment. We don't want financing to be a barrier towards purchasing your solar product that can help you save money in the long run while becoming energy independent. We are happy to provide you with the following financing options through our partners:


Paypal Credit: No Payments + No Interest if paid in full in 6 months on purchases of $99 or more. Buying with the power to pay as you choose and still enjoying the security and reliability of PayPal...now that’s magic!

 

LightStream: Loans available from $5,000 to $100,000 with flexible loan terms. No fees, no origination fees, no application fees, no prepayment penalties/fees. Fast, easy application, approval and activation.


Prosper.com Personal Loans

Prosper: Loans made simple with low interest rate. Offers single monthly payment with no hidden fees or prepayment penalties. Checking your rate won't affect your credit score.

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