Sungrow Power Supply Co., Ltd.
Type: On-grid
Power Range: 22.2 kW
Region: China China
Note: Your Enquiry will be sent directly to Sungrow Power Supply Co., Ltd..


SG 125K is a grid-friendly inverter with reactive power control and max. efficiency 97.5%. Continuously and stably working in high altitude environment, active power control with power factor from 0.9 lagging to 0.9 leading. Give reactive power compensation to the grid at night according to directive.

Product Characteristics

Model No.
Input Data(DC)  
Max. DC Power
21 kW
Max. DC Voltage
1000 V
Nominal DC Voltage
620 V
Min. DC Voltage to Start Feed In
300 V
Max. DC Current
42 A
MPP Voltage Range
280~950 V
No of MPP Trackers
DC Inputs
Output Data (AC)  
Max. AC Power
22.2 kW
Nominal AC Power
20 kW
Output AC Voltage Range
310~480 V
Nominal AC Voltage
230, 400 V
Max. AC Current
33 A
Frequency Range
47-63 Hz
50, 60 Hz
Power Factor (cosθ)
Distortion (THD)
< 3 %
No of feed-in phases
Max. Efficiency
98 %
Euro Efficiency
97.3 %
AC Output Connection
General Data  
Dimensions (H/W/D) 
686x648x246 mm
55 kg
Power Consumption at Night
< 1 W
Operating Temperature -25 ~ +60 ℃
Transformer Transformerless
Protection Class IP65
Humidity 95 %
Cooling Fan
Max. Altitude 4000 m
Interface RS 485
Display LCD
Protection Features  
Protection Features Anti Island Protection(ENS), Short Circuit Protection, Overvoltage Protection, Residual Current Device (RCD), Reverse Polarity Protection
Download Manufacturer's PDF

Product Application:

Suitable for 50Hz grid, could be used in Asia, Africa and Europe.

Product Features:


• Max. Efficiency at 97.5%

• Efficient PWM algorithm, low consumption on switch

• Redundant power solution of dual power improving system reliablility


 -30℃~+55℃ continuously operating at rated power 

• Continuously and stably working in high altitude environment

• Auxiliary heater (Optional)


• LVRT (Zero-voltage Ride-through

• Active power continuously adjustable (0~100%)

• Reactive power control with power factor from 0.9 lagging to 0.9 leading

• Give reactive power compensation to the grid at night according to directive


Enel-GUIDA, TÜV, CGC certification, compliance with BDEW


About Sungrow

Sungrow Power Supply Co., Ltd. is a high-tech enterprise engaged in development of power supply equipment for renewable energy especially solar PV and wind power, the company’s products range from grid-connected PV inverter, wind power converter to distributed power supply, and also provides development, construction and operation management of renewable energy generating system. 

Founded in 1997 by Mr. Renxian Cao, Sungrow has become one of the leading manufacturers in the world PV inverter industry. All around the world,  we have more than 1000 employees of which over 30% are R&D engineers, and representative offices and branch companies in France, Italy, Germany, Canada, Australia and other countries. 

Identified as one of The Most Famous Trademarks in China, Sungrow was officially listed (sym:300274) on the Shenzhen Stock Exchange in November 2011, and listed Top 9 of The Most Potential Chinese Public Companies by Forbes in 2012. 

According to a report of IMS research, Sungrow ranked the 5th largest PV inverter manufacturer in the world in 2011 by shippment. And with over 2500MW installation capacity globally, of which 450MW is installed in Europe, Australia and North America, Sungrow is the largest PV inverter manufacturer of Asia, and commented as "Chinese Sturdiness" by Photon Magazine. 

Engaged in the renewable energy industry, Sungrow will keep on developing more efficient and cost-effective solution to bring green electricity to our life.

Sungrow Power Supply Co., Ltd.

No.1699 Xiyou Rd., New & High Technology Industrial Development Zone, 230088, Hefei, Anhui, P.R
No. Staff: 1,700
Send message to this supplier
Sungrow is a world-class technology provider, specializing in PV inverters and energy storage equipment for residential, commercial, and utility-scale PV power plant systems. Founded in 1997, Sungrow is a customer-oriented and innovationled organization focusing on renewable power generation. For over 20 years, Sungrow has spearheaded innovation in the PV inverter industry with its consistent focus on R&D. This focus on R&D has kept Sungrow’s broad product lineup as the preeminent choice in the ever-evolving solar industry.

Sungrow is now the world’s leading PV inverter manufacturer, with over 20 Gigawatts deployed globally. With 11 subsidiaries worldwide located throughout North America, Asia, Europe, Australia, and South America, Sungrow has its products installed and operating in over 50 countries. As the worldwide market leader, Sungrow currently has market shares of over 30% in China and over 20% in Germany.

Useful Contacts

Contact Face
Luis Xu SEA Regional Sales Manager

LinkedIn Profiles

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