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3.5KW Off-Grid Solar Inverter China Suppliers - Pure Sine Wave, 24V DC, Built-in MPPT Charge Controller from Factory
| ⚙️ Technical Parameters | |
| Model | DFXN24OF3.5K |
| Rated Power | 3500W |
| Input Parameters | |
| Voltage | 230VAC |
| Optional Voltage Range | 170~280VAC (Personal Computer) |
| 90~280VAC (Household Appliances) | |
| Frequency Range | 50Hz / 60Hz (Adaptive) |
| Output Parameters | |
| AC Stabilized Voltage | 230VAC ± 5% |
| Surge Power | 7KVA |
| Peak Efficiency | 93.5% |
| Switching Time | 10ms (For PC), 20ms (For Home Appliances) |
| Wave Form | Pure Sine Wave |
| Battery Parameters | |
| Battery Type | Lead Acid + Lithium Battery |
| Battery Voltage Range | 21~33V |
| Charging Curve | Three-Stage |
| Lithium Battery Charging Strategy | Adaptive To Lithium Battery |
| Photovoltaic Charging & AC Charging | |
| Maximum Photovoltaic Power | 3500W |
| Maximum PV Open Circuit Voltage | 500VDC |
| MPPT Range & Working Voltage | 120~450VDC |
| Maximum Solar Charging Current | 100A |
| Maximum AC Charging Current | 60A |
| General Parameters | |
| Product Size (mm) | 320 × 490 × 110 |
| Package Size (mm) | 346 × 536 × 178 |
| Net Weight (kg) | 8.44 |
| Communication Interface | RS232 / RS485 / CAN / Dry Contact |
| Relative Humidity | 5% ~ 95% |
| Operating Temperature | -10℃ to 50℃ |
| Storage Temperature | -15℃ to 60℃ |
🌍 Applications
This product is suitable for home emergency, remote areas with insufficient power supply, rural areas and farms, disaster relief and emergency, small commercial and industrial facilities, off-grid tourist facilities, areas with high power costs, remote monitoring and control stations, etc.
🏆 Product Advantages
1
3.5KW, 5.5KW, 10KW Off-grid Solar Inverter
Solar Off-grid Inverter is a new all-in-one off-grid solar charge inverter, which integrates solar energy storage & means charging energy storage and AC sine wave output.
- Advanced SPWM technology output of pure sine wave.
- Optimized MPPT technology with an efficiency of 93.5%.
- Available in 4 charging modes.
- Designed with an LCD screen and 3 LED indicators for dynamic display.
2
Important Specification
Employed advanced SPWM technology and outputs pure sine wave to convert 24V DC to 90V–280V AC, 50Hz/60Hz frequency (Auto detection). Max PV open circuit voltage 500 Vdc; MPPT range & working voltage 120–450Vdc; Max 3500W input; Max 3500W output; Fit for 24V Lead-Acid (Seal, AGM, Gel, Flooded) and Lithium battery.
3
Safe and Reliable
The power inverter has 360° all-round protection with a number of protection functions, including short circuit protection, over voltage and under voltage protection, overload protection, reverse protection, etc. Ideal for AC loads such as household appliances, power tools, industrial equipment, and electronic audio and video equipment.
4
Multiple Working Modes
4 charging modes — Only Solar, Mains Priority, Solar Priority and Mains & Solar off-grid charging; 2 output modes — mains bypass and inverter output. The inverter is designed with an LCD screen and 3 LED indicators for dynamic display of system data and operating status.
5
What Size Inverter Should I Buy?
- Size the right power output. Inverters will be rated by a wattage value, telling you how many watts it can run at one time. For example, imagine you had a 500W Fridge and 800W Air Conditioning. These two items would be 1300W and would require an inverter with a higher wattage than 1300W. An inverter above 1300W can meet your power needs. (The calculation methods of variable frequency and fixed frequency are different.)
- Check your battery voltage. The DC voltage rating on the inverter will tell you what battery bank it is compatible with. For example, a 12V battery bank will require an inverter that is compatible with 12V DC input.
- Size your installation spaces. What area or space will you set your inverter? Make sure the inverter will fit in the space you have in mind with enough room around it for proper ventilation and no fire hazards.
- One-stop service. If you don't know much, we will provide you with one-stop service.
❓ Frequently Asked Questions
Q What is the rated power of the DFXN24OF3.5K off-grid solar inverter?
The DFXN24OF3.5K has a rated power of 3500W with a surge power capacity of 7KVA, making it suitable for powering a wide range of household appliances and small commercial equipment.
Q What types of batteries are compatible with this inverter?
This inverter supports both Lead-Acid batteries (Sealed, AGM, Gel, and Flooded types) and Lithium batteries. The battery voltage range is 21–33V, and it features an adaptive lithium battery charging strategy for optimal performance.
Q What are the available charging modes for this solar inverter?
The inverter offers 4 charging modes: Only Solar, Mains Priority, Solar Priority, and Mains & Solar off-grid charging. It also provides 2 output modes — mains bypass and inverter output — giving users flexible energy management options.
Q What is the maximum solar panel input voltage for this inverter?
The maximum PV open circuit voltage is 500VDC, with an MPPT working voltage range of 120–450VDC. The maximum solar charging current is 100A, and the maximum AC charging current is 60A.
Q What protection features does the DFXN24OF3.5K inverter include?
The inverter features 360° all-round protection, including short circuit protection, over-voltage and under-voltage protection, overload protection, and reverse polarity protection, ensuring safe and reliable operation for all connected devices.
Q Where can this off-grid solar inverter be used?
This product is ideal for a wide range of applications including home emergency backup power, remote areas with insufficient grid supply, rural areas and farms, disaster relief operations, small commercial and industrial facilities, off-grid tourist accommodations, areas with high electricity costs, and remote monitoring and control stations.