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Prostar PowerSolar 48V 4KVA 3200 watt off grid inverter for solar electricity systems

Guangdong Prostar New Energy Technology Co., Ltd.

Prostar PowerSolar 48V 4KVA 3200 watt off grid inverter for solar electricity systems

Place of Origin : Guangdong, China

Brand Name : Prostar or OEM/ODM

Certification : CE, EMC, IEC, LVD, RoHS, ISO9001, ISO14001

Model Number : PowerSolar PIS4K-48

MOQ : 20 Piece/Pieces

Price : US $ 600 / Piece (basic on MOQ)

Packaging Details : Standard Export Carton Package.

Delivery Time : 15~20 days for Routine machine, once received deposit

Payment Terms : T/T or L/C. 30% deposit before production, 70% balance before shipment.

Supply Ability : 88000 Piece/Pieces per Month

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Prostar PowerSolar 48V 4KVA 3200 watt off grid inverter for solar electricity systems

Prostar PowerSolar off-grid inverter is a multi-function inverter/charger, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.


Prostar PowerSolar series inverters are equipped with MPPT solar charge controller to maximize and regulate DC power from the solar array for the charging the battery bank. Transformerless design provides reliable power conversion in compact size. Besides, it’s worry-free to start up motor-type loads such as refrigerators, motors, pumps, compressors and laser printers as well as electronic loads like TV’s, Computers, power tool and battery chargers.

48V 4KVA 3200 watt off grid inverter


  1. Pure sine wave inverter

  2. Built-in MPPT solar charge controller

  3. Selectable input voltage range for home appliances and personal computers

  4. Selectable charging current based on applications

  5. Configurable AC/Solar input priority via LCD setting

  6. Compatible to mains voltage or generator power

  7. Auto restart while AC is recovering

  8. Overload and short circuit protection

  9. Smart battery charger design for optimized battery performance

  10. Cold start function

  11. Parallel operation with up to 6 units only available for 4KVA/5KVA

  12. Optional Remote Control Panel available

Technical Specification




Voltage120 VAC or 230 VAC230 VAC
Selectable Voltage Range95-140 VAC or 170-280 VAC (For Personal Computers)
65-140 VAC or 90-280 VAC (For Home Appliances)
170-280 VAC (For Personal Computers)
90-280 VAC (For Home Appliances)
Frequency Range50 Hz/60 Hz (Auto sensing)
AC Voltage Regulation (Batt. Mode)110/120 VAC ± 5% (User
selectable) or 230VAC ± 5%
230VAC ± 5%
Surge Power2000VA4000VA6000VA8000VA10000VA
Efficiency (Peak)90%-93%93%
Transfer Time10 ms (For Personal Computers); 20 ms (For Home Appliances)
WaveformPure sine wave
Battery Voltage24 VDC48 VDC24 VDC24 VDC48 VDC48 VDC
Floating Charge Voltage27 VDC54 VDC27 VDC27 VDC54 VDC54 VDC
Overcharge Protection31 VDC62 VDC31 VDC31 VDC62 VDC60 VDC
Maximum PV Array Power600 W900 W600 W600 W900 W3000 W
MPPT Range @ Operating Voltage30VDC~ 66VDC60VDC~ 88VDC30VDC ~ 66VDC30VDC ~ 66VDC60VDC ~ 88VDC60VDC ~
Maximum PV Array Open Circuit Voltage75VDC102VDC75VDC75VDC102VDC145VDC
Maximum Solar Charge Current25A18 A25A25A18A60A
Maximum AC Charge Current10 A / 20 A10 A / 15 A20 A or 30 A20 A or 30 A10 A / 15 A60 A
Maximum Charge Current25A18 A30A30A18A120A
Maximum Efficiency98%
Standby Power Consumption2 W
Dimension, D x W x H (mm)100 x 272 x 355140 x 295 x 540
Net Weight (kgs)
Humidity5% to 95% Relative Humidity(Non-condensing)
Operating Temperature0°C - 55°C
Storage Temperature-15°C - 60°C
* There are charging current selection only available for 230VAC system.
Product specifications are subject to change without further notice


Prostar PowerSolar Off grid Solar Inverter Catalog

Prostar PowerSolar Off grid Solar Inverter 4KVA/5KVA Manual

Basic System Architecture

The following illustration shows basic application for this inverter/charger. It also includes following devices to have a complete running system:

Consult with your system integrator for other possible system architectures depending on your requirements.

This inverter can power all kinds of appliances in home or office environment, including motor-type appliances such as tube light, fan, refrigerator and air conditioner.

solar electricity systems

Note: Appliances like air conditioner need at least 2~3 minutes to restart because it’s required to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check manufacturer of air conditioner if it’s equipped with time-delay function before installation. Otherwise, this inverter/charger will trig overload fault and cut off output to protect your appliance but sometimes it still causes internal damage to the air conditioner.

Product Details

solar inverter

solar invertersolar inverter

Inverter Installation

Unpacking and Inspection

Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should have received the following items inside of package:

  • The unit x 1

  • User’s manual x 1

  • Communication cable x 1


Before connecting all wirings, please take off bottom cover by removing two screws as shown below.

Prostar PowerSolar Solar Inverter Installation

Mounting the Unit

Consider the following points before selecting where to install:

  1. Do not mount the inverter on flammable construction materials.

  2. Mount on a solid surface

  3. Install this inverter at eye level in order to allow the LCD display to be read at all times.

  4. For proper air circulation to dissipate heat, allow a clearance of approx. 10 cm to the side and approx. 50 cm above and below the unit.

  5. The ambient temperature should be between 0°C and 55°C to ensure optimal operation.

  6. The recommended installation position is to be adhered to the wall vertically.

  7. Be sure keep other objects and surfaces as shown in the below diagram to guarantee sufficient heat dissipation and to have enough space for removing wires.

Prostar PowerSolar Solar Inverter Mounting Prostar PowerSolar Solar Inverter Installation

Battery Connection

CAUTION: To safety operation and regulation compliance, it’s requested to install a separate DC over-current protector or disconnect device between battery and inverter. It may not be requested to have a disconnect device in some applications, however, it’s still requested to have over-current protection installed. Please refer to typical amperage in below table as required fuse or beaker size.

WARNING! All wiring must be performed by a qualified personnel.

WARNING! It's very important for system safety and efficient operation to use appropriate cable for battery connection. To reduce risk of injury, please use the proper recommended cable and terminal size as below.

Recommended battery cable and terminal size:

Prostar PowerSolar Inverter battery connection cable size

Please follow below steps to implement battery connection:

1. Assemble battery ring terminal based on recommended battery cable and terminal size.

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