SUN-300G Solar Grid Connected Inverter 300w

Ref Price:
Loading Port:
Payment Terms:
TT or LC
Min Order Qty:
50 pc
Supply Capability:
100000 pc/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

SUN-300G Solar Grid Connected Inverter 300w



u  ‘SGPV’ (Small Grid Tie Photovoltaic System)

l  The only plug and play small grid tie photovoltaic system

l  The stackable small grid tie photovoltaic system


SUN-300G Solar Grid Connected Inverter 300w INTRODUCTION

The small type solar grid tie power inverter can obtain the solar energy from solar panel, and can tie to the grid through its output cable with no extra equipment. The installation is very convenient and reliable.

 We call the system combining with small solar grid tie power inverter and solar panels as ‘SGPV’. The system includes solar panels and small type grid tie power inverter. Solar panels can be mono silicon, polygon silicon, non-crystal film or any other material that can transform solar energy to electric energy. The power of grid tie inverter should be matched to the power of solar panels connected. So the power of SGPV is defined by its solar panels, it can be standardization according to the actual using.


SUN-300G Solar Grid Connected Inverter 300w ADVANTAGE

There are many advantages of SGPV compare with the traditional grid tie system.

1. Low cost and easy installation - SGPV can make full use of all types of buildings’ surface that face to the sun in the city as well as fast and easy installation of solar modules and grid tie inverter. It's very low maintenance costs.

2. Free combination - SGPV can be used as a separate grid tie system and can be setup as a large solar array with many of them. The quantity of SGPV in the array is just according to your desire. If you are planning to install a grid-tie PV system, in a general way, the solar array and inverter need to be carefully matched to ensure that the inverter’s voltage and power limits are not exceeded. When you want to increase more solar panels, and if the total power of the solar panels exceeds the allocation grid inverter, it is necessary to increase the cost of a grid inverter.

3. Combination of SGPV does not interact - The traditional solar grid tie system, they offer units ranging in high power output and these units are modular so you can have multiple units operating in parallel for large solar arrays. Although, the traditional grid inverter has MPPT feature (Maximum Power Point Tracking), but the maximum power point is according to the entire series in terms of solar panels array, if the performance of a piece of solar panels in the system, for some reason, such as leaves, bird droppings, dust, shadow, etc., degrades, the performance of the entire solar power system will decrease.

SGPV has no such disadvantage. If the performance of a piece of solar panels in the system degrades, this just effects this piece itself, will not affect other SGPV in the system.



SUN-300G Solar Grid Connected Inverter 300w  INSTALLATION

The individual system of SGPV is shown in Figure 1. Installing the solar panel of the SGPV at a suitable location that sunshine can irradiate on it, connecting the cables of the solar panel to the DC input terminals of the small grid tie inverter of the SGPV, inserting the plug of the inverter into the socket of the home grid. After this, when the sun shines, the SGPV will convert the solar energy to the home grid.

Figure 1    A SGPV

SGPV can be stackable, and all SGPVs are independent each other. The total power converting to the grid is the total power of all SGPVs. The installation of each SGPV is same. Connecting large quantity of SGPV to the grid, this will construct high-power grid-tie system



SUN-300G Solar Grid Connected Inverter 300w  Operation Procedures

1, Connect the Solar Panel or Wind Turbine’s DC supply cables to the DC input terminal of the inverter, be sure that the polarity is correct. Recommended DC input cable size for maximum output is 8AWG or cables that can handle more than 30A. Optimal length would be less than 8m, longer cables will experience higher voltage drop. The range of output power of Solar Panel or Wind Turbine is 20W~300W.

2, Put the AC output voltage switch on the inverter to the correct position (115V or 230V) according to your location home grid AC voltage.

3, Connect the supplied AC power cord to the inverter and plug it to a home wall socket.

4, The 3 green LED indicators will start to cycle from left to right when the grid and DC supply is detected. This indicates the inverter is operating under normal condition. The rate of the cycling is according to how much power is being output from the solar panels or the wind turbine. The more big output power is, the more fast the rate is. If there is no AC grid detected, the red LED will be on, the inverter will not put out power, this is called “Island Protection”.


SUN-300G Solar Grid Connected Inverter 300w Electrical Specifications:



Normal AC Output Power


Maximum AC Output Power


AC  Output Voltage Range

Switch is at 230V Position

190V ~ 260V

Switch is at 115V Position

90V ~ 130V

AC Output Frequency Range

46Hz ~ 65Hz

Total Harmonic Distortion(THD)


Power Factor


DC Input Voltage Range ( Optional )

10.8V ~ 30V      /     22V~60V

Peak Inverter Efficiency


Standby Power consumption


Output Current Waveform

Pure Sine-wave

MPPT Function


Over Current Protection


Over Temperature Protection


Reverse Polarity Protection


Anti-Island Protection




u  Mechanical Specifications:

Operating Temperature Range

-10 0C  ~  45 0C









Q: Do you have the CE, TUV, UL Certification?

A: We’ve already passed all the tests, and any certificate is available.

Q: Have you ever sold your products to companies in my country?

A: Of course, we have customers in all general PV markets, but I think we should expand our market share along with the market growth.

Q: When did your company set up?  You are a new company, how can I believe your quality?

A: We entered into Solar PV industry in 2005, now we have several plants in manufacturing of a-Si and c-Si panels, and our capacity is 220MW per year. Till now we have already passed all the tests by authorized laboratories, e.g. TUV, CE, UL.



Q: Can you help us install the module if we cooperate with you?

A: We haven’t entered into installation sector, but we have the plan in near future.

Q: How do you pack your products?

A: We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

Q: Can you do OEM for us?

A: Yes, we can.

Q: Can we visit your factory?

A: Surely, I will arrange the trip basing on your business schedule.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range