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Home > Products > (out of production)Inverter SP Series 350W-20000W > 20000W pure sine wave inverter.....


20000W pure sine wave inverter-I-Panda SP inverter series20000W pure sine wave inverter-I-Panda SP inverter series20000W pure sine wave inverter-I-Panda SP inverter series20000W pure sine wave inverter-I-Panda SP inverter series

20000W pure sine wave inverter-I-Panda SP inverter series

  • Introduction
  • When under inversion mode,this series of inverters can be set to normal working mode and sleep mode. And when under utility mode, it has Auto Voltage Regulation (AVR) function, utility charging function (only when AC first) and UPS function (AC first or DC first, optional). This multifunction low frequency pure sine wave inverter, which has the advantages of stable quality, strong load-carrying ability and anti-poor environment ability, Long service life, is the second generation of our low frequency pure sine wave inverter.


1. Back-up UPS system for industrial,commercial, household,etc

2. Mobile power and standby power for areasthat are lack of utility.

3. Off-grid solar & wind power system

3.1 Simple Off-grid solar & wind powersystem

3.2 AC first Off-grid solar & windpower system

3.3 DC first Off-grid solar & windpower system



1. pure sine wave output, full power

2. CPU management and control,modulardesign

3. LCD display,can visually display variousparameters

4. Multifunction design,can set a varietyof working mode

5. External battery connection, convenientto expand use time and back-up power time; user can connect as many batteriesas needed

6. With super load carrying ability andhigh load capacity, this series of  inverterscan not only drive resistance load; but also various kinds of inductive loads,such as motor, air

conditioner, electric drills, fluorescentlamp, gas lamp, etc. It can drive almost any kinds of load.

7. Low frequency circuit design, goodsystem stability, low failure rate and long service life (under properoperation, it may be as long as 5 years)

8. Perfect protection: low voltageprotection, over voltage protection, overheat protection, short-circuitprotection, overloads protection; alarm alert

9. CE / EMC / LVD/ RoHS Approvals.

10. Two years warranty, life-long technicalsupports



1. Sole inversion function under inversion mode (only connected to battery ),can be set to normal operatingmode and sleep mode.

1.1 Normal working mode:FREQUNCY in the LCD display is set as 01. No matter whether there are AC loads connected to the inverter or not, the inverter’s output terminal will always have voltage ready to supply power to the loads. Under this mode, the LCD will be displayed as bellow:

1.2 Sleep mode:FREQUNCY in the LCD display is setas 02. If the power of the loads that connected to the inverter is lower than5% of the inverter’s rated power, there will be no output from the inverter. That is tosay, only the chip of inverter is working under such condition and the powerconsumption is only 1-6W; If the power of the loads that connected to theinverter is higher than 5% of the inverter’s rated power, then the inverterwill automatically start the inversion function and supply power to the loadswithin 5s. As shown below:

2. UPS function under utility mode(connected to battery and utility .Can beset as utility first, battery standby mode and battery first, utility standbymode).

2.1 Utility first,battery standby UPS mode: FREQUENCY in the LCD display is set as 01. When bothutility and battery are connected to the inverter, utility will supply power tothe loads prior to the battery. When utility is cut off, the battery will automaticallycontinue to supply power after inversion.

Steps are asfollows:

Step 1: Whenutility power is available, it will output directly after voltagebeingstabilized and charge batteries at the same time.

Step 2: Whenutility power is cut off suddenly, the inverter will convert DC power to ACpower automatically to ensure uninterrupted power supply within 5ms.

Step 3: Whenutility power becomes available again, it will automatically transfer toutility supplying power to loads and charge batteries at the same time.

See Workflow asbelow:

LCD displayed asbellow:

2.2 Battery first,utility standby UPS mode: FREQUENCY in the LCD display is set as 03.  When both utility and battery are connectedto the inverter, battery will supply power to the loads prior to utility. Whenbattery capacity is not enough, utility will continue to supply powerautomatically.

Steps are asfollows:

Step 1: Whenbattery has enough power, it will supply power to the loads directly

Step 2: Whenbattery does not have enough power, it will automatically transfer to utilitysupplying power to the loads

Step 3: After thebattery is fully charged (e.g. by solar or wind charge controller), it willthen automatically transfer to battery supplying power to the loads.

See Workflow asbelow.

LCD displayed asbellow :


                                                    Model                          Parameter


Rated Output Capacity


Peak Power


Battery Voltage(DC)


Size W×D×H(mm)


Packing Size W×D×H(mm)


Net Weight (kg)


Gross Weight (kg)


General Parameter

Working Mode


Utility First, Battery Standby



Sleep Mode, no utility, load’s power higher than 5% of rated power, start to work automatically



Battery first, utility standby

AC Input


220V±35% or 110V+35%(optional)


50Hz±3% or 60Hz±3% (optional)

AC Output


220V±3% or 230V±3 or 240V±3% or 100V±3%

or 110V±3% (optional)


50Hz±0.5 or 60Hz±0.5 (optional)

Battery charge

AC Charge Current


Charge Time

Depend on battery capacity and quantity

Battery Protection

Automatic detection, Charge and discharge protection, Intelligent Management


Display Mode


Display Information

Input voltage, output voltage, output frequency, battery capacity, Load condition, Status Information

Output Wave Type

Pure sine wave output, waveform distortion rate ≤3

Overload Ability

>120% 1 min,>130% 10s

Power Consumption

Sleep Mode


Normal Mode


Conversion Efficiency


Transfer Time

<5ms (AC to DC / DC to AC)


Overload output, short-circuit, high-voltage input, low-voltage input, overheat









The “optional”parameter can be set as per customer’s requirement

The above is ourstandard parameter. Subject to change without prior notice.

We have our ownprofessional inverter and controller R&D team and we provide technicalsupport and OEM service.



Please refer tothe outline design, technical documents, product brochures, etc.

Made byEngineering Department  May 5, 2014  2nd Edition

Shenzhen ipandee New Energy Technology & Science Co., Ltd


Contact Person:Henry Feng

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