High Frequency Off Grid Solar Inverter- Sunflx Solar

High Frequency
Off Grid Solar Inverter

High Frequency Off grid solar inverter is a 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 advantage is : 1. Compact size 2. Much less weight， Easy to install . 3 high conversion efficiency 4. Cost-Effective

SX-SEI Series 4-12KW

SX-SPI Series 8-10Kw

SX-SEI Series 4-12KW

SX-HYP Series 5KW

Product Compare List

Model

SX-HSI

SX-SYP

SX-SEI

SX-SPI

Photo

Model NO

SX-HSI 3000S
SX-HSI 3000R
SX-HSI 3500
SX-HSI 5500
SX-HSI 5500P

SX- SYP 5K-S
SX- SYP 5K-U

SX-SEI-6K-SP
SX-SEI-8K-SP
SX-SEI-10K-S
SX-SEI-12K-SP
SX-SEI-8-12K-UP

SPI-8/10K-S
SPI-8/10K-U
SPI-10K-SP
SPI-10K-H3

Key Feature

Light Version 3KW
Li-ion battery BMS dual activation
Bulk selling good price
Off Grid Frist Chooice

Hybrid Inverter with on/off grid function
Time-slot function
Li-ion battery BMS dual activation

Most Durable Model
360 degree IP65 protection
Hybrid Inverter with on/off grid function
Parallel operation up to 6 units
Two MPPT Charger
Time-slot function [1]
Li-ion battery BMS dual activation

Split-phase funciton
Have Three-Phase version
Parallel operation up to 6 units
Two MPPT Charger
Time-slot function
Li-ion battery BMS dual activation

AC input Voltage (AC)

120V/230V

120V/ 230V

120V/ 230V , Split Phase

Battery Voltage

24V/48V

48V

Battery Type

Lead-acid /Gel Battery
Lithium Battery

Output power

3/3.3/5/5.5 KW

5KW

6/8.8/10/12KW

8/10KW

Output Voltage (AC)

230V

120V/230V

230V
120V+230V (split phase)

MPPT Controller

Yes

Max pv input Power

1.4KW(3KW)
3.4KW(3.3KW)
4KW(3.5KW)
5KW(5KW)
6KW(5.5KW)

5.5KW

2 MPPT Charger
4.5KW+4.5KW (6KW)
5.5KW+5.5KW (8.8/10KW )
6.6KW+6.6KW (12KW)

2 MPPT Charger
5.5KW+5.5KW

Max pv input voltage (DC)

108V (3KW)
145V (3.3KW)
500Vdc(3.5/5/5.5KW)

500V

500V/500V

MPPT operating voltage range(DC)

30-85V (3KW)
60-115V (3.3KW)
120-450V (3.5/5/5.5KW)

120-450Vdc

120-450V (6KW)
125-425V (8.8/10/12kW)

125-425V

Max.MPPT Charging Current (A)

60A (3/3.3KW)
80A (3.5/5KW)
100A (5.5KW)

22A

16A+16A (6KW)
22A+22A (8.8/10/12kW)

22A+22A

SX-HMS Series 1.5-3Kw

SX-SP Series 2.2-7Kw

SX-SML Series 2-3kw

SX-MPS Series 3.5-5.5kw

Model

SX-SP

SX-SML

SX-MPS-HP

SX-MPS-V MAX

SX-MPS-VX

Photo

Model NO

SX-SP-2200
SX-SP-3200
SX-SP-4200
SX-SP-7000

SX-SML 2000-12
SX-SML 3200-24

SX-MPS-3500HP
SX-MPS-5500HP

SX-MPS-V MAX 7.2KW
SX-MPS-V MAX 8.2KW
SX-MPS-V MAX 10.2KW

SX-MPS-VX 4.5KW
SX-MPS-VX 6.5KW
SX-MPS-VX 7.2KW

Key Feature

55-450V High PV input voltage
Can Work with lithium-ion battery
Cold start function
Intelligent fan speed adjustment

30-400V Extremely wide PV input voltage range
Built-in anti-dusk kit for harsh environment
Smart battery charge design to optimize battery life

Parallel operation up to 6 units
120-500V High PV input voltage
User-adjustable charge current and voltage
Working without batteries in sunny day

Hybrid Inverter with on/off grid function
High Output Power upto 10.2KW
Dual Load output
Touch Button with one-Click factory Reset

6.2 inch Big LCD display with touch screen
Less nosiy with Built-in Silent Fan
Battery charging current can set for diffierent battery

AC input
Volt (AC)

230V

Battery Volt

12V/24V/48V

12V/24V

24V/48V

48V

28.2V /56.4V

Battery Type

Lead-acid /Gel Battery
Lithium Battery

Output power

12V 2.2KVA
24V 3.2KVA
24V/48V 4.2KVA
48V 7KVA

12V 2KVA
24V 3.2KVA

24V 3.5KVA
48V 5.5KVA

7.2/8.2/10.2KW

28.2V 4.5KW
56.4V 6.5/7.2KW

Output Volt (AC)

230V

MPPT Controller

Yes

Max pv
input Power

2KW(2.2KVA)
3KW(3.2KVA)
6KW(4.2/7KVA)

2KW(2KVA)
3KW(3.2KVA)

5KW(3.5KVA)
6KW(5.5KVA)

8.2W(7.2/8.2KW)
10.2KW(10.2KW)

5.5W(4.5KW)
6.5W(6.5KW)
8KW(7.2KW)

Max pv input
voltage (DC)

450V

500V

450V

MPPT operating
voltage range(DC)

55-450V

30-400V

120-500V

90-500V

120-450V

Max Charging
Current (A)

110A (24V4.2KVA/48V 7KVA)
80A(2.2KVA/24V3.2KVA/48V 4.2KVA)

60A

110A

140A(7.2KW)
160A(8.2/10.2KW)

130A(6.5KW )
150A (4.5/7.2KW )

SX-MPS-VX 4.5-7.2kw

SX-MPS-V MAX 7.2-10.2kw

Product Compare List

Power Inverter
SX-DB-P 0.3-6KW Series

Power Inverter
SX-DP-CR 1-5KW Series

SX-HMS Series 1.5-3Kw

1.5-3Kw Inverter Output

220V version

12/24/48V Battery voltage

2000W 80Vdc Max PV input

PWM or MPPT Customized

Economy type with competitive price

SX-SP Series 2.2-7Kw

2.2-7Kw Inverter Output

220V version

12/24/48V Battery voltage

6000W 450Vdc Max PV input

1 MPPT Tracker

Economy type with competitive price

SX-SML Series 2-3kw

2-3Kw Inverter Output

230V version

12/24V Battery voltage

RS232/GPRS/WIFI

1 MPPT Tracker

Built-in 80A MPPT solar charger

SX-MPS Series 3.5-5.5kw

3.5-5.5Kw Inverter Output

230V version

Pure Sine Wave

PV and electricity complementary

1 MPPT Tracker

Economy type with competitive price

SX-HSI Series 3.5-5.5KW

3.5-5.5Kw Inverter Output

220V and 120V version

24/48V Battery voltage

6000W 500Vdc Max PV input

1 MPPT Tracker

6 units parallel Connects to 30Kw Max

SX-SPI Series 8-10Kw

8-10Kw Inverter Output For Big House

220V and 120V version

48V Battery voltage

11000W 500Vdc Max PV input

2 MPPT Tracker

120V & 220V output at same time

SX-SEI Series 4-12KW

4-12Kw Inverter Output

220V and 120V version

48V Battery voltage

5500W 500Vdc Max PV input

2 MPPT Tracker

Grid and Solar hybrid Inverter Output

SX-HYP Series 5KW

5Kw Inverter Output

220V and 120V version

48V Battery voltage

5500W 500Vdc Max PV input

1 MPPT Tracker

6 units parallel Connects to 30Kw Max

Power Inverter
SX-DB-P Series

0.3-6Kw Inverter Output

Very stable AC output

High surge power

Input & output fully insolated

12/24/48V DC-110/120/220/230v AC

Power Inverter
SX-DP-CR Series

1-5Kw Inverter Output

Very stable AC output

High surge power

Input & output fully insolated

12/24V DC-110/120/220/230v AC

SX-MPS-VX 4.5-7.2kw

4.5-7.2Kw Inverter Output

230V version

28.2/56.4V Battery voltage

14400VA Surge power

1 MPPT Tracker

150A Maximum Charging Current

SX-MPS-V MAX 7.2-10.2kw

7.2-10.2Kw Inverter Output

200-240V version

48V Battery voltage

10200W 500Vdc Max PV input

1 MPPT Tracker

Dual output

What is difference between standard type and economical type ?

Standard type : Use most durable materials and robust construction, Excellent Heat dissipation Performance , 99% High efficiency MPPT charger and Convert Circuit. With low working noise 50 db at 1m distance . Beautiful Industrial design make it ideal for household off grid solar system. Provide 1.5-5 Years Warranty

Economical type : Only pay attention to most key point like Output power and Charging efficiency.

With most competitive price and still stable quality ,help people in rural area to enjoy the benefits of solar.

Provide 1 year Warranty.

Why choose our off gird solar inverter ?

All Power Range ,From 1Kw to 12Kw .
All Price Range Inverter , Always meet your budget.
Factory Fast Delivery , Below 20 Pcs all have stock. 100pcs can delivery in 10 days
True Warranty Policy, Commit to our responsibility
We provide OEM services ,Enlarge your brand influence
With CE, IEC, ROHS Certificate.

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 advantage is : 1. Compact size 2. Much less weight ,Easy to install . 3 high conversion efficiency 4. Cost-Effective

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, 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.

What is difference between standard type and economical type ?

Economical type : Only pay attention to most key point like Output power and Charging efficiency.

With most competitive price and still stable quality ,help people in rural area to enjoy the benefits of solar.

Provide 1 year Warranty.

Application

Remote Locations: Ideal for areas without grid access or with frequent power outages. Like Rural Homes and Farms ,Mountain Cabins and Retreats,Island houses ,Eco-Tourism Facilities,Mobile Clinics and Schools,Outdoor 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 ?

Below is main components of a high Frequency off grid solar inverter

1.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.

2.Microprocessor Control Unit:

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

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 appliance like air conditioner , refrigerator to start normally.
Regulators: Maintain consistent voltage and frequency.

3.Filter and Output Regulator:

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 working silent as there are no fans inside and maintenance-free.

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.

4.Cooling System: Fans or Nature Heat Sinks:

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

5. Protection Circuits:

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

6. Battery Charger :

Allows remote monitoring and control of the inverter.

7. Communication Ports:

How to choose the right off grid inverter ?

1.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.

– 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.

2.Evaluate Solar Panel 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.

3.Battery Compatibility:

– 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 .

4. Efficiency and Performance:

– 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.

5. Environmental Conditions:

– 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.

6. Installation and Maintenance:

– 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.

7. Additional Features:

– 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.

8. Budget and Warranty:

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

9. Certifications and Standards:

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

10. Brand Reputation:

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 !

How we produce your order ?

1.Selecting Top-Grade Raw Materials

Semiconductor Materials: We use advanced silicon-based semiconductors known for their high electrical conductivity and efficiency.
Metal Casings: Our casings are made from robust, corrosion-resistant aluminum, providing durability and heat dissipation.
Electronic Components: We source capacitors, resistors, and other components from industry-leading suppliers, ensuring longevity and performance consistency.

2. Rigorous Component Inspection

Quality Control Protocols: Every component undergoes a multi-tiered inspection process, including visual checks, electrical testing, and durability assessments.
Testing Equipment: State-of-the-art testing equipment, like automated optical inspection (AOI) systems, are employed to detect even the minutest flaws.

3. Precision Assembly Process

PCB Assembly: Our printed circuit boards (PCBs) are assembled in a dust-free environment to prevent any contamination.
Soldering Techniques: We use automated soldering techniques that ensure strong and reliable connections between components.

4. Comprehensive Product Testing

Efficiency Testing: Each inverter is tested for its power conversion efficiency to ensure it meets our stringent energy standards.
Thermal Management Testing: Inverters undergo temperature testing to assess their performance under varying environmental conditions.
Longevity Testing: We simulate extended operational periods to guarantee longterm reliability.

5.Secure Packaging and Dispatch

Custom Packaging: Inverters are encased in shock-absorbent, environmentally friendly packaging.
Documentation: Each unit comes with a detailed user manual, installation guide, and a warranty card.

Product Certificate

Factory View

SUNFLX Solar is a China off grid solar inverter orginal manufacture, with Marketing & Research headquarters in Chengdu City and a Production Base in Guangzhou City. SUNFLX hardware & software engineer team continuously develops new technology and has gained over 30 patents and has been certified as a “National High-tech enterprise” by 2022.

SUNFLX provides a 1-10kw full range of off grid solar inverter, High frequency off grid solar inverter ,Transformer type solar inverter, Split phase solar inverter ,economic type solar inverter. All solar inverter are built-in high efficiency MPPT charge controller. With excellent cost control ability, we can ensure you got best price in the market.

See What Our Happy Customers Say

I started business with Sunflx for two years. at first i brought two MPPT solar controller from them , their price is good and turned out the products is is satisfactory. later we start inverter orders ,they reply question are fast , Easy to work them.

I bought Sunflx solar inverter for my own shop , it is good quality , Here in my city have many brands solar inverter , But not every brands have good quality ,they use 1 year and then not working . so far Sunflx solar inverter works well without any problem ,No customer return back to me.

Contact Us

Automatic Solar System Configuration Tool

Input your system basic info, it can design your off grid solar system in 1 second !

Contact us now ,I will send you immediately !

Solar system automatic configuration tools
1-10kw solar system datasheet and quotes
Sunflx latest catalog

No spam mails will send to you , we promise.