Prostar PLT8K pure sine wave line interactive ups 8kva for computers

Line Interactive UPS | 8KVA/4.8KW | 48VDC | 110Vac/120Vac or 220Vac/230Vac/240Vac | Pure Sine Wave

SKU: PLT8K-48 Category:

Prostar PLT8K pure sine wave line interactive ups 8kva for computers maintains the inverter in line and redirects the battery’s DC current path from the normal charging mode to supplying current when power is lost.

Prostar single phase line interactive ups 8kva is a full digital control of the design concept, application of intelligent CPU control System, combined with CMOS and PWM perfect, adopt frequency online interactive structure, built in power Intelligent charger novel uninterruptible power supply products. Adding an optional network management card permits remote management of the UPS, including reboots and activity logs.

Automatic voltage regulation (AVR) maintains 220V/230V/240V nominal output over an input range of 158V to 278V without using battery power. EMI/RFI noise filtering improves your equipment’s performance and prevents damage.

Pure sine wave line interactive ups 8kva uses automatic voltage regulation (AVR) to correct abnormal voltages without switching to battery.

48V single phase line interactive ups 8kva is connected mission-critical equipment against damage, downtime and data loss due to blackouts, brownouts, surges and line noise. Ideal solution for point-of-sale applications, VoIP systems and small business networks.

pure sine wave line interactive ups 8kva

Line Interactive UPS 8kva Features & Benefits

1. Excellent microprocessor control guarantees high reliablility

Machine with CPU control, all the operational parameters of UPS are controlled by the CPU, ensuring the UPS is in the best working condition. Improved the accuracy of the product parameter, ensured full compliance of product performance, the product failure rate effectively reduce.

2. Intelligent Charger

Built-in smart charger, with TOP charge type (charging type of high current at the initial, and balanced type and floating type alternating charging), shorten the battery charging time, extend the battery life, and it is suit to the areas of high rate power cut. And the users can set charging voltage and charging current by press button.

3. Wide input voltage range (110V-300V)

Interactive structural design, low frequency type program, with superior shock resistance. To satisfy the demand for different type of load, this might be widely used in household, commercial, industrial, outdoor base station.

4. Special Protection method

Prostar line interactive takes muti-level protection mode of output, which could resisit the impact effectively, and also with the short circuit protection function, which could enhance its reliability.

Power Amplifier Over CurrentThis system is equipped with the detection of the working current of power amplifier tube. When the detection current over large, the system will automatically enter current limiting working mode, meanwhile it displays the fault code E01.
Output Short Circuit ProtectionWhen the machine is shorted circuit, the system will shut down and display fault code: E02. After removed the fault, it needs to be started manually.
Overload ProtectionWhen the charge or inverter overload, the machine will enter the protection state, and display fault code: E03, including hardware protection and software protection.
Over Temperature ProtectionWhen the machine internal temperature is too high, the machine will enter the over-temperature protection state, and display fault code: E04.
Battery Over Voltage ProtectionIn order to avoid the wrong way battery connection or the controller and charger fault caused system damage, when the system detects that battery voltage is over high, it will automatically shut down and display fault code: E05.
Low Battery Voltage ProtectionTo avoid excessive battery discharge, the machine will automatically shut down the system and display fault code: E06.
Phase Reverse ProtectionWhen the system detects internal phase error, it will alarm and display fault code: E07.
Low Output Voltage ProtectionWhen the system detects that the output voltage of system is over low, the inverter will automatically shut down and display fault code: E08.
Hardware ProtectionWhen entering the hardware protection, the over current protector jumps off and needs to press the over current protector button before the machine can work again.
Software ProtectionWhen entering the software protection, the machine will shut down automatically through the software control. At this time, the user needs to start the machine manually.

5. Well unattended function

While the main power is abnormal, the battery will supply power instead till low-voltage appeared, and then UPS shut down; when the main power come back, the line interactive ups 8kva will start working automatically, and it will charge for the battery at the same time. No need to turn on the UPS manually.

6. High Efficiency and Energy Saving

When AC power is normal, the inverter is under dormant status, the main power through the built-in voltage regulator (AVR) directly to supply power to the loads, and its efficiency is as high as 98%. Therefore it is called “Green UPS” which in full compliance with the spirit of low carton.

7. Auto restart while AC is recovering

8. Pure Sine Wave Output

Line interactive UPS pure sinewave output provides maximum stability and superior compatibility with sensitive equipment. Pure sine wave power is required by some equipment power supplies and prevents others from overheating, malfunctioning or failing prematurely.

9. Boost and buck AVR for voltage stabilization

10. Cold start function

11. LCD panel for comprehensive display

Front-panel LCD signals operating mode, load level, voltage, battery charge and estimated runtimes. Supports multiple advanced user setup and operating preferences.

Line Interactive UPS LCD Display Information

LCD Display Icons

IconFunction description
INPUT VacIndicates the AC input voltage.
BATT VdcIndicates the battery voltage.
OUTPUT VacIndicates the output voltage.
INPUT HzIndicates the AC input frequency.
BATT %Indicates the battery capacity.
OUTPUT %Indicates output loading.
full battery capacityIndicates battery level by 0-24%, 25-49%, 50-74% and 75-100% in battery mode and charging status in line mode.
In AC mode, it will present battery charging status.

StatusBattery voltageLCD Display

Current mode /


Voltage mode

<2V/cell4 bars will flash in turns.
2 ~ 2.1V/cellBottom bar will be on and other three bars will flash in turns.
2.1 ~ 2.2V/cellBottom two bars will be on and other two bars will flash in turns.
> 2.2 V/cellBottom three bars will be on and the top bar will flash.
Floating mode. Batteries are fully charged.4 bars will be on.

In battery mode, it will present battery capacity.

Load PercentageBattery VoltageLCD Display
Load >50%< 1.7V/cell25% battery capacity
1.7V/cell ~ 1.8V/cell50% battery capacity
1.8 ~ 1.9V/cell75% battery capacity
> 1.9 V/cellfull battery capacity
50%> Load > 20%< 1.8V/cell25% battery capacity
1.8V/cell ~ 1.9V/cell50% battery capacity
1.9 ~ 2.0V/cell75% battery capacity
> 2.0 V/cellfull battery capacity
Load < 20%< 1.9V/cell25% battery capacity
1.8V/cell ~ 1.9V/cell50% battery capacity
1.9 ~ 2.0V/cell75% battery capacity
> 2.0 V/cellfull battery capacity

100% Output loading

Indicates the load level by 0-24%, 25-50%, 51-74% and 75-100%.




25% Output loading50% Output loading75% Output loadingFull Output loading
utility powerShows unit connects to the utility power.
utility charger circuitIndicates the utility charger circuit is working.
DC to AC Inverter workingShows the DC/AC inverter circuit is working.
working modeThe working mode number.
alarmIndicates unit alarm is disabled.

Line Interactive UPS Details

smart line interactive ups

smart line interactive ups diagram

smart line interactive ups

smart line interactive ups

smart line interactive ups LCD display

Line Interactive UPS Charging Function

Multi-stage charging: smart chip control of the three-stage battery charge management function, can quickly fill the battery, and effectively extend the battery life.

Charging current optional: regarding to their own configuration of the battery AH, the users select the corresponding charge current (from 0% -100% in 20 steps adjustable).

Charging voltage optional: for a variety of battery charging voltage: lead acid batteries, GEL batteries, Lithium batteries

smart line interactive ups battery charge

smart line interactive ups

Line Interactive UPS working mode

Mode 1Regular ModeThe system always keeps output.
Mode 4Energy Saving


The system always keeps output.

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    Line Interactive UPS 8KVA Specification

    Rated Power8KVA/4.8KW
    Voltage Range100V/110V/120V/127AC or 220V/230V/240VAC(+25%,-36%)
    Frequency Range50/60 Hz±2.5Hz Auto
    AC Voltage Regulation100V/110V/120V/127AC±0.5% or 220V/230V/240VAC±0.5%(AC Mode±10%)
    Frequency50HZ/60HZ±0.5HZ Auto(AC Mode±2.5HZ)
    Surge Power14.4KW
    Battery Efficiency85%
    AC Efficiency93%
    Transfer Time8ms default, 4ms optional
    WaveformPure Sinewave
    Battery Voltage48VDC
    Floating Charge Voltage54.4VDC
    Overcharge Protection60.0VDC
    AC Charge Current8A-40A Adjustable (40A default)
    Battery ReversalOptional
    Output Short CircuitAC mode:Jump fuse, UPS mode: Shut down
    OverloadFull load 100%, UPS alarm. Overload 120%, UPS shut down output in 10s. Once the load back to normal, UPS recover output.
    High AC VoltageTurn off AC,turn to UPS mode automatically
    Low DC VoltageUPS shut down automatically,Once the AC recover, UPS turn on and charge automatically
    Over TemperaturePower Off
    Humidity15~93%(No condensation)
    Temperature-10℃ ~ 50℃
    CommunicationUSB, RS232, 485, SNMP (Optional)
    Dimension, DxWxH (mm)535*280*575
    Net Weight (Kgs/PC)38.61
    Product specifications are subject to change without further notice.