OFF GRID SOLAR STORAGE INVERTER​

High-Frequency Off-Grid Solar Inverter combines a solar inverter, AC charger, and MPPT solar controller. It draws power from solar panels and the grid to supply electricity.

It converts DC from solar panels into AC for home and business use. Advantages include compact size, lightweight, easy installation, high efficiency, and cost-effectiveness.

For more details, select a product.

12/24V
SF 1200/2400/3600 SE
24V
SF ​​4000
48V
SF 3600/6000
48V
SF 3600/6000 Pro
48V
SF ​​8000/10000
48V
SF ​​8000/10000 Pro
48V
SX-SPI 8-10KW
48V
SX-SEI 4-12KW
SF 1200/2400/3600 SE 12/24V

Built-in MPPT solar charger丨Compatible with lithium, lead-acid and GEL batteries丨30V Low Inverter start voltage,Work with 1 pcs solar panel丨Feed into Grid (Optional)丨CE, IEC62109-1丨SunSync APP available

SF 4000 24V

Dual AC outputs for smart load management丨Wide PV input voltage range 60Vdc-500Vdc丨CE, IEC62109-1丨Compatible with lithium, lead-acid and GEL batteries丨CE, IEC62109-1丨SunSync APP available

SF 3600/6000 48V

Dual AC outputs for smart load management丨Wide PV input voltage range 60Vdc-500Vdc丨Compatible with lithium, lead-acid and GEL batteries丨CE, IEC62109-1丨SunSync APP available

SF 3600/6000 48V Pro

Up to 6 units in parallel for capacity extension to 21.6/36kW丨Dual AC outputs for smart load management丨Compatible with lithium, lead-acid and GEL batteries丨CE, IEC62109-1丨SunSync APP available

SF 8000/10000 48V

Two MPPT, max. string current 22A , max. solar input 12kW丨Dual AC outputs for smart load management丨Wide PV input voltage range 60Vdc-500Vdc丨CE, IEC62109-1丨SunSync APP available

SF 8000/10000 48V Pro

Up to 6 units in parallel for capacity extension to 48/60kW丨Dual AC outputs for smart load management丨Two MPPT, max. string current 22A , max. solar input 10kW丨CE, IEC62109-1丨SunSync APP available

SX-SEI 4-12KW 48V

Most Durable Model丨360 Degree IP65 Protection丨Hybrid Inverter With On/Off Grid Function丨Pure Sine Wave

SX-SPI 8-10KW 48V

Split-Phase Funciton 丨Have Three-Phase Version丨Parallel Operation Up To 6 Units丨Two MPPT Charger 

Product Compare List

MODEL
SF 1200 SE
SF 2400 SE
SF 3600 SE
SF 3600
SF 4000
SF 6000
SF 8000
SF 10000
Outlook Of Product
Key Feature
30V Low Inverter start voltage,Work with 1 pcs solar panel
Optional Bluetooth monitoring (APP available)
Dust-proof filter for harsh environment
Cost-Effective with most stable quality
Wide PV input voltage range 60Vdc-500Vdc
PV and AC dual activation
Dual AC outputs for smart load management
Plug-and-play quick connection MC4 PV terminals
Optional Bluetooth monitoring (APP available)
Two MPPT, max. string current 22A , max. solar input 12kW
PV and AC dual activation
Dual AC outputs for smart load management
Plug-and-play quick connection MC4 PV terminals
Optional Bluetooth monitoring (APP available)
Battery Input
12V 108.7A
24V 107.5A
24V 159.6A
48V 79.8A
24V 177.3A
48V 133A
48V 177.3A
48V 221.6A
Battery voltage Range
10.5-16Vdc
21-33Vdc
21-33Vdc
42-63Vdc
21-33Vdc
42-63Vdc
42-63Vdc
42-63Vdc
Inverter Output
Rated Output Power
1200VA/1200W
2400VA/2400W
3600VA/3600W
3600VA/3600W
4000VA/4000W
6000VA/6000W
8000VA/8000 W
10000VA/10000 W
AC Output
230Vac, 50/60Hz, 5.2A
230Vac, 50/60Hz, 10.4A
230Vac, 50/60Hz, 15.7A
230Vac, 50/60Hz, 15.7A
230Vac, 50/60Hz, 17.4A
230Vac, 50/60Hz, 26.1A
230Vac, 50/60Hz, 34.8A
230Vac, 50/60Hz, 43.5A
Model
SF 1200 SE
SF 2400 SE
SF 3600 SE
SF 3600
SF 4000
SF 6000
SF 8000
SF 10000
AC Input
AC Input
230Vac, 50/60Hz, 16A,1Φ
230Vac, 50/60Hz, 20A,1Φ
230Vac, 50/60Hz, 30A,1Φ
230Vac, 50/60Hz, 30A,1Φ
230Vac, 50/60Hz,40A,1Φ
230Vac, 50/60Hz, 40A,1Φ
230Vac, 50/60Hz, 60A,1Φ
230Vac, 50/60Hz, 60A,1Φ
AC Charge Current
14Vdc. Max 60A. Default 30A
27VDC . Max 60A .Default 30A
27VDC . Max 80A .Default 30A
54VDC . Max 80A .Default 30A
27VDC . Max 120A .Default 30A
54VDC . Max 120A .Default 30A
54VDC . Max 150A .Default 60A
54VDC . Max 150A .Default 60A
PV Input
Max.PV Input Current
1*11A
1*11A
1*18A
1*18A
1*22A
1*22A
2*22A
2*22A
Max. PV Input Power
2000W
3000W
4000W
4000W
6000W
6000W
12000W (6000W*2)
12000W (6000W*2)
450V
450V
450V
500V
500V
500V
500V
500V
500V
MPPT Voltage Range
30~400V
30~400V
30~400V
60~450V
60~450V
60~450V
60~450V
60~450V
Max. Charge Current
60A
60A
80A
80A
120A
120A
150A
150A
Net Dimension/Weight
355*280*110 mm/5.7kg
355*280*110 mm/6.1kg
355*309*110 mm /7.3kg
415*309*110 mm/9.5kg
415*309*110 mm/9.5KG
415*309*110 mm/11kg
500*390*138 mm/18kg
500*390*138 mm/18kg

Why choose our inverter?

We provide the best service & solar inverters.

Everything you need to know about high Frequency off grid solar inverter

What is High Frequency Off grid solar inverter?

Sunflx high Frequency Off grid solar inverter is All-In-One combination of Solar inverter, AC charger and MPPT Solar Controller. Off grid solar inverter can draw power from both solar panel and grid to supply electricity to load.

Function converting the Direct Current (DC) from solar panels into Alternating Current (AC), the form of electricity used in most homes and businesses.

High Frequency inverter advantages are : 

The “High Frequency” aspect refers to the operating frequency of the inverter’s internal components, specifically the transformer.

How it works?

Off grid solar power system is when your solar panel remains connected to the grid and also has a backup battery system to store power produced by the solar panel. Off grid solar power system includes: solar panel, off-grid solar inverter, backup battery and accessories.

In the daytime, the solar panel will generate electricity for household load, at this time, the inverter will charge the battery.

In the night, the inverter will take power from the battery to supply household appliances. When the battery power is low, the grid will continue to supply electricity to the load from inverter bypass circuit. And at this time you can also choose to charge the battery from grid through the inverter.

Application

Remote Locations:
ldeal for areas without grid access or with frequent power outaqes Like Rural Homes and Farms, Mountain Cabins and Retreats, Island houses, Eco-Tourism Facilities, Mobile Clinics and Schools, Outdool Recreational Activities ,etc.

Residential/Small Commercial Use:
Suitable for homes or small businesses needing a reliable power source.

What is the main component of high Frequency off grid solar inverter?

01.

DC to AC Conversion Circuit

- Inverter Bridge: Converts DC from the solar panels or batteries into AC power
- High Frequency Transformer: Smaller and lighter compared to low frequency transformers, used to change the voltage levels.

02.

Microprocessor Control Unit

Manages the conversion process, ensuring the output is suitable for appliances.

03.

Filter and Output Regulator

- Filters: Smooth out the electrical waves to ensure a clean, stable AC output. For example need pure sine wave output to make sure your motor appliances like air conditioner, refrigerator start normally.
- Regulators: Maintain consistent voltage and frequency.

04.

Cooling System: Fans or Nature Heat Sinks

Prevent overheating, which is vital for maintaining efficiency and longevity. Fan Cooling is built-in fans to actively circulate air and dissipate heat from the inverter’s components, it is more effective in cooling, especially for power inverters and where ambient temperature is high.
While Natural Heat Sinks (Passive Cooling) is rely on heat sinks (usually metal fins or plates) that absorb and dissipate heat into the surrounding air naturally. They are Less effective at cooling than active systems, but sufficient for lower power or well-ventilated inverters, Natural Heat Sink is works silently as there are no fans inside and maintenance-free.

05.

Protection Circuits

Built for all kinds of protection functions : Overload, Short Circuit Protection, Surge Protection and so on. the protection circuit are Guards against any unexpected problem happens.

06.

Battery Charger

Ensures the battery bank is charged from solar panels or the grid.

07.

Communication Ports

Allows remote monitoring and control of the inverter.

How to choose the right off grid inverter ?

01.

Determine Your Power Requirements

- Assess Your Load: Calculate the total wattage of all the devices and appliances you plan to power. Include items like lights, refrigerators, TVs, and any other electrical equipment.
- Consider Peak Load: Some appliances, like refrigerators or pumps, have higher start-up power requirements. Ensure the inverter can handle these peak loads.

02.

Evaluate Solar Panel Compatibility:

- Match with Solar Panels:Your inverter should be compatible with voltage and Current characteristics of your solar panel array. for example your solar array Voc votlage is 120V, then you will need an inverter with Max PV input over 120V ,then can work with your solar array. 
-Consider Future Expansion: :If you plan to add more panels later, choose an inverter that can accommodate this. For example right now you only have 5 solar panel total 1500W. and maybe in the future you will think about to increase them to 3000W. so you would better choose a inverter which Max PV input power 3000W from the very beginning.

03.

Battery Compatibility

- Voltage Compatibility: Ensure the inverter matches the voltage of your battery system (12V, 24V, 48V, etc.).
- Battery Type: Some inverters are better suited for certain types of batteries (like lead-acid or lithium-ion). Check compatibility. Sunflx inverter can work perfectly with lead-acid and lithium-ion. So this will not need to worry.

04.

Efficiency and Performance

- High Conversion Efficiency: Look for inverters with a high efficiency rating (usually above 90%). Sunflx inverter convert efficiency is from 92%-95%. Performance above Standard !
- Maximum Power Point Tracking (MPPT): MPPT technology maximizes the power extraction from solar panels, especially under varying light conditions. Sunflx All inverter are equip with MPPT solar charger with 98% charging efficiency .

05.

Environmental Conditions

- Temperature Tolerance: Check the operating temperature range, especially if you live in a very hot or cold climate.
- Protection Features: Look for inverters with protection against overloads, short circuits, and over-temperature.

06.

Installation and Maintenance

- Size and Weight: Ensure the inverter’s physical dimensions fit your installation space.
- Ease of Installation: User-friendly installation and setup are important, especially if you plan to do it yourself.
- Maintenance Requirements: Consider how easy it is to maintain and service the inverter.

07.

Additional Features

- Remote Monitoring: Some inverters offer the ability to monitor performance remotely, which can be a handy feature.
- Expand ability: If you might expand your system in the future, choose an inverter that can grow with your needs.

08.

Budget and Warranty

- Cost: Balance your budget with the features and reliability you need.
- Warranty and Support: Look for a product with a good warranty and accessible customer support.

09.

Certifications and Standards

Safety and Quality Certifications: Ensure the inverter meets relevant international safety and performance standards.

10.

Brand Reputation

Manufacturer Reliability: Research the brand's reputation for quality and service.

To do the solar system Configuration is a professional work, you can consult your local solar technician. We also have a Automatic Solar System Configuration Tool. Input your system basic info, it can design your off grid solar system in 1 second ! You can contact us to get it . it is Free !

Work with SunSync APP

Manage your Sunflx inverter & battery with ease using our app SunSync. Monitor performance, adjust settings, and ensure optimal efficiency right from your smartphone. Stay connected to your solar power system no matter where you are.

Work with SunSync APP

Manage your Sunflx inverter & battery with ease using our app SunSync. Monitor performance, adjust settings, and ensure optimal efficiency right from your smartphone. Stay connected to your solar power system no matter where you are.

More Details

Email

sales@sunflx.com

Contact No/WhatsAPP

+86-​​18606636626

Headquarter

NO 1-1, South Yixing Innovation Park, Huangpu, Guangzhou, GuangDong, P.R.China

Manufacture Unit

F2-4, No 1. Zhanye Road, Sunde, Foshan, Guangdong, P.R.China

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