Solar Energy System
Photovoltaic Inverter
Lithium Battery
Solar Panel
Solar Energy Equipment
Accessories
3.5KW Off-Grid Solar Inverter Factory in China - Pure Sine Wave, MPPT Charge Controller, Solar System Suppliers
⚡ 3.5KW 5.5KW 10KW Solar Off-grid Inverter | Pure Sine Wave | 48V DC | 240VAC | 50/60Hz | Built-in 60A / 100A / 200A MPPT Charge Controller
📋 Technical Specifications
| Model | SST48HW3.5K | SST48HW5.5K | SST48HW10K |
| Inverter Output | |||
| Rated Output Power (W) | 3500 | 5500 | 10000 |
| Rated Output Power (VA) | 3500 | 5500 | 10000 |
| Maximum Peak Power (W) | 6000 | 10000 | 15000 |
| Load Capacity with Motors (HP) | 2 | 4 | 6 |
| Rated AC Output | 230 VAC (200 / 208 / 220 / 240VAC), 50 / 60Hz | ||
| Output Voltage Waveform | Pure Sine Wave | ||
| Inverter and Bypass Switching Time | 10ms (Typical) | ||
| Parallel Capacity | 9 | ||
| Maximum Battery Inverter Efficiency | 93% | ||
| Overload Protection | 102%~110%, 5min；110%~125%, 10s；>125%, 2s | ||
| Battery | |||
| Battery Type | Lithium / Lead-acid / User Defined | ||
| Rated Battery Voltage (VDC) | 48 | ||
| Battery Voltage Range (VDC) | 40~60 | ||
| Max. MPPT Charging Current (A) | 60 | 100 | 200 |
| Max. Mains Charging Current (A) | 60 | 60 | 120 |
| Max. Hybrid Charging Current (A) | 80 | 100 | 200 |
| Charging Current Error (ADC) | ±3 | ||
| Charging Short Circuit Protection | Blown Fuse | ||
| PV Charging | |||
| MPPT Quantity | 1 | 2 | |
| Max. PV Array Power (W) | 4000 | 5500 | 5500+5500 |
| Max. PV Input Current (A) | 13 | 22 | 22+22 |
| Max. Open Circuit Voltage (VAC) | 500 | 500+500 | |
| MPPT Voltage Range (VDC) | 120~450 | ||
| MPPT Tracking Efficiency | 99.9% | ||
| Mains Input | |||
| Input Voltage Range (VAC) | 90~280 / 170~280 | ||
| Frequency Range (Hz) | 50 / 60±0.3 | ||
| Output Short Circuit Protection | Circuit Breaker | ||
| Bypass Overload Current (A) | 30 | 40 | 63 |
| Specifications | |||
| Dimensions (D*W*H) mm | 130*350*455 | 130*445*630 | |
| Weight (kg) | 11 | 12 | 27 |
| Classification of Waterproof | IP20 | ||
| Operating Temperature Range (℃) | -10~55 | ||
| Storage Temperature Range (℃) | -25~60 | ||
| Noise (dB) | <60 | ||
| Heat Dissipation | Forced Air Cooling (Variable Speed Of Fan) | ||
| Communication | |||
| Embedded Interface | RS485 / CAN / USB / Dry Contact | ||
| External Module | WIFI / GPRS | ||
| Certification | |||
| Safety | CE (IEC62109-1) | ||
| EMC | EN61000 | ||
| Note: Above data are subject to change without notice. Special voltage could be customized. | |||
🏠 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 & mains charging energy storage and AC sine wave output.
- Advanced SPWM technology output of pure sine wave.
- Optimized MPPT technology with an efficiency of 99.9%.
- 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 48V DC to 90V-280V AC, 50Hz/60Hz frequency (Auto detection). Max PV open circuit voltage 100 Vdc; PV operating voltage range 30-100 Vdc; MPPT voltage range 120-450Vdc; Max 4000W input; Max 35000W output; Fit for 48V 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 a 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 1300 Watts 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 space. 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.
- Not sure where to start? If you don't know much, we will provide you with one-stop service.
❓ Frequently Asked Questions (FAQ)
Q What is the difference between the SST48HW3.5K, SST48HW5.5K, and SST48HW10K models?
A The three models differ primarily in rated output power (3500W, 5500W, and 10000W), maximum peak power (6000W, 10000W, and 15000W), MPPT charging current (60A, 100A, and 200A), and motor load capacity (2HP, 4HP, and 6HP). The 10KW model also features dual MPPT inputs (2×5500W PV arrays) and a larger physical size.
Q What types of batteries are compatible with this solar off-grid inverter?
A This inverter is compatible with Lithium batteries, Lead-acid batteries (including Sealed, AGM, Gel, and Flooded types), and also supports a User Defined mode. The rated battery voltage is 48V DC with a working range of 40–60V DC.
Q What charging modes does this inverter support?
A The inverter supports 4 charging modes: Only Solar, Mains Priority, Solar Priority, and Mains & Solar off-grid charging. It also offers 2 output modes: mains bypass and inverter output, giving users full flexibility in managing their energy sources.
Q Can multiple inverters be connected in parallel?
A Yes. This inverter supports a parallel capacity of up to 9 units, allowing users to scale up their system power output significantly to meet larger energy demands in commercial or industrial applications.
Q What protection features does this inverter include?
A The inverter features 360° all-round protection including short circuit protection, over-voltage and under-voltage protection, overload protection (with timed responses at 102%–125%+ load levels), reverse protection, charging short circuit protection (blown fuse), and output short circuit protection via circuit breaker.
Q What certifications does this inverter hold, and what communication interfaces does it support?
A The inverter holds CE safety certification (IEC62109-1) and EMC certification (EN61000). For communication, it includes embedded interfaces: RS485, CAN, USB, and Dry Contact. Optional external modules include WIFI and GPRS for remote monitoring and control.