Fronius | 3.8kW Primo Gen24 Inverter, 240 VAC, 1-Phase, 200 - 480 VDC MPPT
3.8kW Primo Gen24 Inverter, 240 VAC, 1-Phase, 200 - 480 VDC MPPT
The Fronius Primo GEN24 3.8kW inverter redefines what homeowners can expect from their solar energy systems. This advanced single-phase inverter not only delivers 240 VAC output and operates within a wide MPPT voltage range of 200 – 480 VDC, but also features a built-in backup power outlet—allowing essential devices to stay powered during the day, even without battery storage.
Engineered in Europe for quality and innovation, the Primo GEN24 is built to meet the dynamic needs of modern solar installations. Its Smart Shade Management ensures high yields even under partial shading, while active cooling extends system longevity and efficiency. Designed for adaptability, it supports future upgrades such as energy storage integration or smart home automation.
Whether you’re installing a new solar system or upgrading an existing one, the 3.8kW Primo Gen24 Inverter is a reliable, forward-compatible solution that supports long-term energy independence.
Key Benefits
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Integrated Backup Power
Maintain power to essential loads during daylight hours—no battery required. -
Wide MPPT Range (200–480 VDC)
Provides flexibility for various array designs and orientations. -
Smart Shade Tolerance
Maximizes energy yield in real-world shading conditions. -
Active Cooling System
Enhances efficiency and lifespan, especially in high-temperature environments. -
Future-Ready Design
Compatible with future energy storage and smart home solutions. -
European-Made Quality
Engineered and manufactured in Europe for performance and durability.
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Specification
| Input Data | |
|---|---|
| Number of MPP trackers | 2 |
| PV input power | 3940 W |
| Feed-in start voltage (Udc start) | 80 V |
| Min. MPP voltage (U mpp min) | 200 V |
| Max. MPP voltage (U mpp max) | 480 V |
| Output Data PV Point | |
| Max. switchover time PV-Point | 17 s |
| Max. switchover time Full Backup | 17 s |
| General Data | |
| Mains Frequency | 60 1/s, 50 1/s |
| Width | 474 mm |
| Height | 516 mm |
| Depth | 165 mm |
| Weight | 15.08 kg |
| Weight incl. packaging | 18.7 kg |
| Protection class | 1 |
| Overvoltage category (DC / AC) | 2 / 4 |
| Inverter design | Transformerless |
| Cooling | Active Cooling Technology |
| Installation | Indoor and outdoor installation |
| Min. permissible ambient temperature | -40 °C |
| Max. permissible ambient temperature | 60 °C |
| DC PV connection technology | 2x DC+1, 2x DC+2 and 4x DC- spring-type terminals (AWG14-8) |
| DC battery connection technology | 1x DC+ and 1x DC- spring-type terminals (AWG 12-8) |
| AC connection technology | Spring-type terminals (AWG 14-8); Backup: AWG 16-8 |
| Back-up power functions | PV Point |
| Sound emissions | 42 dB(A) |
| Interference emission class | B |
| Protection Devices | |
| DC insulation measurement | Yes |
| Overload behaviour | Operating point shift, Power limitation |
| DC disconnector | Yes |
| DC Reverse polarity protection | Yes |
| Arc fault circuit interrupter (Fronius Arc Guard) | Yes |
| Interfaces | |
| WLAN / 2x Ethernet LAN | Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
| 6x digital in/out + 6x digital in | Interface to ripple control receiver, energy management |
| Emergency stop (WSD) | Yes |
| Datalogger and web server | Included |
| 2x RS485 | Modbus RTU SunSpec / Fronius Smart Meter |
| Technical Data | |
| Grid connection | NPE |
Manuals and Download
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Yes! By default, all products on Solar Guys Pro are 100% brand-new and in perfect condition.
If an item is used or refurbished, it will clearly indicate so in the title of the product as well as the discription.
For example, a used Battery will say:
XYZ Battery | 48V 100AH (REFURBISHED)
If you'd like to confirm, you can always send us a email at info@solarguyspro.com
Orders over $500 include a FREE (Normally $149.99) 80-Page DIY Solar eBook — added automatically at checkout.
Frequently Asked Questions
Customer Reviews
Overall rating: 4.8 / 5 from 169 reviews.
Tomorrow iam doing a video for YouTube on both my pectrons.and as soon as I can afford my 200 watt solar panles I will be doing another video on all of it..thank you Giddy up go Melody. Melody Johnson
These ten 560 watt panals made a nice addition to my current system. Waiting for clear skies to see how they really preform. They did good on a cloudy day.
SKU SGR-5KE 5000W - 48VDC - 120V - 10.24KWH - 6x 415 Watts Solar Panels Setup was simple and straightforward. Followed the diagram for my system. Installation can be done with very basic electrical knowledge. This was a fun project seems to be good quality and performance. Batteries charge via generator for emergency backup. 6 panels pulling 2.2kw with 13a from 0% to 95% 4hrs. sunlight. This was a great investment. No more monthly bills.
Love it!! Very happy with the results and our purchase! Great company too.
Well, as you can see, it looks very nice. But the instructions hate to use the word sucks took it apart and put it together about four times before I finally got it right. I believe the instructions with four different unit. The instruction showed 3 shelves. Well, mine has 6 shelves instructions showed a lot of stuff different, but after I figured it out, after about 6 hours. It went together as a solid unit. I'm very happy with it.
So far so good.
I haven't had a chance to test out my system as of yet, still waiting to receive my home panel and sub panel and installation.
Anker Solix | 240V Generator Input Adapter (For F3800 Plus, Home Power Panel)
I decided with early warning of a potential damaging winter weather to invest in a whole home battery backup system. The Anker Solix F3800 plus to include 400 watt solar panel and two expansion batteries and a tri-fuel gas generator. I still need to purchase and install the home smart panel which I’ll do before summer. Luckily I spent the time to cut down potentially damaging trees that may have been susceptible to icing, earlier last year.
These batteries have been great so far! Would recommend. Very easy to setup with the Ruixu busbar and cables.
RUiXU | Lithi2-16 16kWh Lithium Battery | 51.2V 314Ah | UL1973/9540A/9540 Certified | CEC & SGIP
First unit came in damaged but between Solar Guys Pro and Sol-Ark it was replaced with no hassel. Would definetly recommend.
Sol-Ark 15K All-In-One Hybrid Solar Inverter | 120/240/208V 48V Pre-Wired | 10-Year Warranty
Great quality switch. I did have to search youtube to make sure I wired it correctly. Once you understand how it works, it was pretty easy. Would buy again!
The home power panel works great. I just wish they made a 200A version for whole home backup.
Very pleased with the performance of the system. Highly recommend Solar Guys Pro. Solar kit arrived fast and well packaged free from damage. Great communication as well.
The batteries simply work. Easy painless installation.
SunGoldPower | 48V 100AH Server Rack LiFePO4 Lithium Battery SG48100P
Parrallel cables required ad these cables got the bill - from batteries to buss to breaker to inverter!
Epoch 460Ah has massive reserve power compared to two deep cycle lead acid batteries. Very happy with my purchase. I also fixed the clutter from the factory power distribution and added a plexiglass cover to be able to see it all.
Epoch Batteries | Essentials Series | 12V 460Ah | Heated & Bluetooth LiFePO4 Battery (PRE-ORDER)
Works perfectly following the instructions for spacing.
Fast shipping, and excellent packaging keeping it all intact and safe during shipping!
Love the Sun Gold it is fantastic. Do not be fooled by the look alsikes. They look like they were made on the same assembly line with just different paint. I have Eco worthy and they give me problems one of them is a daily issue to get it to start charging. Sun Gold never fails. All my Sun Gold hybrids never have issues so far. I also have a POWMR it turns off and on in the after noon constantle error codes 1,3, and 4 but I have been through the recommendations to fix the issues but still have the same problem. Do NOT stray away from buying the Sun Gold . The service guys here are great. They might be busy but they will get back with you pretty fast. From now on this is my one and only place to buy solr products.
SunGoldPower | 5000W 48V Solar Charger Inverter with Built-in 80A
Easy to install and hook up.
SunGoldPower | Powerwall X LITHIUM BATTERY 51.2V 200AH SG48200T
I am a 70 year old disabled Vietnam vet. Every bit of the installation was done by me so good or bad it is mine. These inverters have their challenges but everything here was done in about 40 hours total. The wiring is very straight forward and the programming will make you scratch your head. SOLAR GUYS PRO and SUNGOLD technicians got on the phone with me and in 15 minutes my system was working properly and doing a very good job. 3300 watts total incoming solar landing on 12 total 12.8V 100AH batteries that are wired as Parallel Series to give 3 banks of 48 volt,100 Amp hour connections. Simplistic in operation but strong at the same time. If anyone wants to know the settings I use just ask.. Thank you Solar Guys. Michael
SunGoldPower | 10000W 48V Solar Charger Inverter (2 Units Parallel)
Dual battery setup with my Iceco APL 35 worked great. Temperatures were consistent on a five day trip to hot and muggy Tennessee. Li Time battery never went down below 90%. 200 watt Rich Solar panel mounted on the tonneau topper kept the lithium battery charged. For further insulation and protection, I wrapped the Iceco fridge with Reflective Insulation. My wife and I are delighted with this cooler. No more ice needed on our month long tent camping trips.
Easy to install
SunGoldPower | 6.5KW 48V Split Phase Solar Inverter SPH6548P
I really like the single form factor compared to multiple batteries. The mounting hardware is excellent. Everything worked perfectly.
SOK Battery | 12V314Ah Battery,Built-in heater & Bluetooth,Victron CAN Comms
200w solar panel is great power i will never use all 1056wh from this anker power bank while I'm charging my familys phones and tablets even on a cloudy day. I got this to charge my e-bike and it will fully charge my 21amp hour e-bike battery great purchase anker is the only brand I'll purchase check out all there speed charging cables and batteries and solar guys saved me $100 over any other website buy Anker from Solar Guys
Easy setup
EG4 | WallMount Indoor Battery 280AH | 51.2V | Indoor | Heated UL1973, UL9540A
Keeps my house powered all night, only use 50% of battery next day by 10am its back at 100%. Left space for 2nd battery for the near future. Hoping to get it soon so I can do some EV charging at night.
In March this year (2025) I had a Epoch 12300A-H Essential Battery installed to replace my four older Trojan T-105 6 volt batteries. The Epoch had more capacity than the combined Trojans which surprised me. I like the performance and really liked the Epoch app which made monitoring the battery conditions very easy. After experiencing the Epoch performance for 2 months and discussing with my wife we decided to purchase a second Epoch 12300A-H to install in parallel with the first one. We are pleased with the extra capacity we now have and really liked how the Epoch app linked the 2 batteries together. Our 570 watt solar system will also do a good job of keeping these batteries up for more RVing adventures. Installed in Monaco Diplomat Class A, diesel pusher, motohome.
Epoch Batteries | 12V 300Ah | Heated & Bluetooth | LiFePO4 Battery - Epoch Essentials
I put this on my cargo trailer to power my portable freezers. I go fishing for five months and some times I’m in remote locations so being self sufficient is essential. I have been running the freezers for a few days now and they haven’t even put a dent in the power, batteries stay fully charged.
Direct burial capable, sturdy but still flexible quality! Tight and precise fitting plugs/contacts! Nothing to complain!
![Customer photo review of EG4 Hybrid Solar Mini-Split Kit 12000 BTU SEER2 22 + 1640 Watts of Solar PV | Energy Star Certified Air Conditioner Heat Pump AC/DC [KIT-E0011]](http://images.loox.io/uploads/2024/12/2/F_xntu3ZU_mid.jpg)
Super easy install and works great,testing it for the winter in the Arizona desert.
Used to connect to my charge controllers.
I love this company so much that I just can’t stop buying from them.
EG4 3kW Off-Grid Inverter | 3000EHV-48 | 3000W Output | 5000W PV Input | 500 VOC Input
Another awesome experience with Solar pro Guys. I can’t recommend them Enough. From A to Z I give one word. Perfect.
EG4 LifePower4 Lithium Battery 48V 100AH | Server Rack Battery (Pre-Order)
![Customer photo review of EG4 Hybrid Solar Mini-Split Kit 12000 BTU SEER2 22 + 1800 Watts of Solar PV | Energy Star Certified Air Conditioner Heat Pump AC/DC [KIT-E0011]](http://images.loox.io/uploads/2024/8/2/zC3dMdxpo_mid.jpg)
Relatively easy plug and play Install. Took us all day to finish, making sure our panel layout would work with 50 yr old trusses underneath. Will purchase again.
I love it. Easy to install. Super quiet. Free shipping. You guys are great. Thanks.
Store owner replied: Hello Michael, Thank you so much for your kind words! We're delighted to hear that you found the installation easy and that our product is meeting your expectations with its quiet performance. We're also glad you appreciated the free shipping. Your feedback truly means a lot to us and inspires us to keep providing excellent service. If you ever have any questions or need assistance, please feel free to reach out. Thanks again for choosing us! Best regards, Sarah Customer Support Team
Super fast delivery. Product as advertised. Thank you
EG4 | Pre-Assembled + Welded Enclosed Battery Rack | 6 Slot | Wheels Included | Bus Bar Covers |
Store owner replied: Hello Kevin, Thank you for your wonderful review! We're delighted to hear that you enjoyed super fast delivery on your EG4 rack and that the product met your expectations as advertised! Your satisfaction is our priority, and we appreciate your feedback. If you have any questions or need assistance in the future, feel free to reach out. Thanks again for choosing us! Best regards, Sarah Customer Support Team
The 3000 is easy to set up and use
EG4 | 3kW Off-Grid Inverter | 3000EHV-48 | 3000W Output | 5000W PV Input | 500 VOC Input
Store owner replied: Hello Dustin! Thank you so much for your review! It sounds like you're loving your EG4 3kW Off-Grid Inverter! We're thrilled to hear that the 3000 was easy to set up and use. Your kind words mean a lot to us. If you need any further assistance, feel free to reach out. Thanks again for choosing us! Best regards, Sarah Customer Support Team
Was skeptical at first because this is a new business and prices sounded too good to be true. Well, time till shipped was a Lil slow but received my conduit box within a day once it did ship. These guys are legit as far as my first purchase.
EG4 | WallMount Indoor Battery 280AH | 51.2V | Indoor | Heated UL1973, UL9540A
Store owner replied: Hello Roy, Thank you for your review! We're glad to hear that you had a positive experience with your first purchase and that everything arrived as expected. We appreciate your trust in our team as we grow and would love to assist you again in the future! Best regards, Sarah Customer Support Team
These batteries are a huge upgrade customer is happy there power now carries over to the morning vs there 6 2 volt batteries wouldn’t and they like the Bluetooth function it’s easy to install the app and easy to read I’m seriously impressed on shipping time I really appreciate that thanks
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