80VA Online UPS Low Frequency 3 in 3 Out UPS

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20~30KVA Online Low Frequency 3 in 3 Out Double Conversion UPS



(208 or 380 or 400 or 480 Vac) ± 20% 

/ 5 wires (3 Lines + Neutral + Ground)

Frequency50 or 60Hz ± 10% Autosensing
Power factor0.98
FilterEMI, RFI
Dual inputOptional 

(208 or 380 or 400 or 480 Vac) ± 20% / 

5 wires (3 Lines + Neutral + Ground)

Frequency50 or 60Hz ± 0.1% 
EffciencyAC / AC > 92%
Trandfer time0 ms
Wave formSine wave
Power factor0.9
Voltage T.H.D.< 2% with linear load< td="">
Crest factor3 : 1
TechnologyTrue on-line double conversion controlled by microcontroller
Overload recoveryAutomatically transfer to UPS mode
Isolation transformerInverter mode ( bypass mode is optional )
Parallel connectionParallel connection function is ready (extra PCB is not required )
Battery typeVRLA ( Valve Regulated Lead Acid ), not included
DC voltage384 Vac480 Vdc
Charging time4 hours up to 90%
Battery detectionself-detect, transfer to battery mode adjustable

Lighting and 

transient protection

Hotswappable lightning and transient surge suppressor

 (In:10 Kamp, Up:1.5 Kv, I max : 20 K amp. )

Hardware protection

output breaker, battery breaker, bypass breaker; DC fuse, fan, 

redundant power supply; 

temperature sensor, EPO (Emergency Power Off), 

audible alarms etc.

Software protection

Discharging batteries, battery charge working mode, inverter working mode,

 emergency power off, manual shutdown, bypass SCR failure, 

bypass sequence failure, bypass over the lilit, critical overload, 

batteries exhaustion, low or high output voltage, DC fuse open, 

5v power supply failure, 13.5V power supply failure, inverter overvoltage, 

200% overload on each line, transfer failure, inverter voltage out of range, 

over voltage between neutral and ground, UPS on bypass mode, 

bypass frequency out opf range.

BypassSolid state
Overload125% for 10 min, 150% for 30 sec, 1000% for 16 millisencond.
EPOEPO local and / or remote
DisplayLCD, touch screen
LED's diagramIncluded

RS232 intellident Slot, modem, SNMP(RJ45)

(SNMP adaptive Software is supplied by the producer)

Elevation1.700 m.o.s. 1 without derrating


& noise

0℃~40℃ / < 60db @ 1.5m.< td="">
HumidityNon condensate

Ask for



(without batteries)




1. Wide range of input voltage

The UPS can offer normal and stable service voltage under its input voltage range. When the input voltage is out of its range the machine will switch to battery mode automatically to keep the output power in order to protect the equipment, such as computers, ensure they will not be damaged by the over high or over low voltage, users can continue the operation of equipment for a while or save the data on computers while the power network is abnormal.


2. Wide range of AVR(Automatic voltage regulation)

In the product’s input voltage range and under 3 steps of intelligent AVR function, it can provide a stable output voltage.


3. Automatic self detection when UPS on(LED).

Before the UPS on, red, yellow, blue LED will light up two times by cycle turns, after self detection UPS switch to AC mode/battery mode or working mode. 


4. Silence function

In the "battery mode", shortly press the switch to turn off the buzzer. But the battery is about to run out or the load is too heavy, the buzzer sound cannot be muted.


5. Overload protection

In the battery mode, output voltage turn down correspondingly when it is overload, after the capacity of load is lower than the rated power then output voltage will back to rated value, it ensures the UPS will not shut down by abrupt overload which caused by surging current during the computer is working and other equipment is added.


6. Short circuit protection

When the mis-operation caused the load short circuit or computer failure (such as power tube breakdown of switch) cause short circuit, the UPS will shutdown automatically for protection.


7. The low current switch

This UPS adopts low current switch to extend the service life which is longer than conventional battery and high current switch in AC current path.


8. Automatic charging

There are two charging mode, charging time is faster than ordinary charging mode, higher efficiency, and greatly prolonging the service life of the battery.


9. With a bypass output

Independent bypass output socket for external printers or scanners of computer peripherals, with surge protection of the load. 


80VA Online UPS Low Frequency 3 in 3 Out UPS

80VA Online UPS Low Frequency 3 in 3 Out UPS

80VA Online UPS Low Frequency 3 in 3 Out UPS



provides a 13 year limited warranty (“Warranty”) against defects in materials and workmanship for its Uninterruptible power supply, Power inverter/chargers, Solar charge controllers, Battery Products (“Product”).

The term of this Warranty begins on the Product(s) initial purchase date, or the date of receipt of the Product(s) by the end user, whichever is later. This must be indicated on the invoice, bill of sale, and/or warranty registration card submitted to us. This Warranty applies to the original MUST-Solar Product purchaser, and is transferable only if the Product remains installed in the original use location.



1.      Where can I buy your products?

You could find our products from dealers or contact our sales team directly. We will provide you with detailed services.

2.      How to contact us?

Contact details can be found from website www.okorder.com to contact us. We look forward to providing you with professional services.

3.      What is the application field of your products?

Our current GW1500~4600-SS series and GW3000~4600-DS, with the flexible expansion ability and allocation capability, can be used in the small photovoltaic (PV) grid power generation systems of family units as well as the commercial photovoltaic system such as BIPV, BAPV and etc.

4.      What kinds of modules do your inventers support?

Our inventers support most of mainstream components and modules in the market. Should you require more details, please do not hesitate to contact our technical personnel.


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Q:What are the methods of photovoltaic grid-connected inverter control
Sine wave output inverter control integrated circuits, sine wave output of the inverter, the control circuit can be used microprocessor control, such as INTEL company produced 80C196MC, Motorola produced MP16 and MI-CROCHIP company PIC16C73 and so on, these single-chip microcomputer has a multi-channel PWM generator,
Q:Is the grid side of the grid and the inverter?
Grid-type system power transmission sequence: photovoltaic panels> relays> inverters> relays> electricity load + power grid (both in parallel).
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
When the power grid failure or disturbance caused by the power supply and network voltage drop, in the voltage drop range, the power group can be uninterrupted through the inverter and network operation.
Q:Is the PV inverter a current source or a voltage source?
Photovoltaic inverter, also known as power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into two kinds of independent power supply and grid.
Q:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
Grid-connected inverter can be operated locally through the LCD screen, or through remote monitoring with dedicated monitoring software.
Q:How the output voltage of the PV inverter and the grid-connected voltage are determined
DC voltage and AC side voltage does not matter, the general PV inverter AC output is 400V / N / PE. With no isolation transformer and output voltage does not matter, grid-connected inverter is the regulation of current, and network voltage depends on the grid voltage. And the grid before the inverter will detect the grid voltage, meet the conditions will be network.
Q:PV grid-connected inverter can directly load it?
Grid-connected inverter is like a car file, he first detects the grid waveform, can not detect not boot, and then the PV DC modulation and consistent with the grid waveform, and then hang up.
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Off-grid inverter is equivalent to their own to establish an independent small power grid, mainly to control their own voltage, is a voltage source.
Q:After the PV inverter, how to achieve the same period before the network?
It can automatically detect the generator and the grid frequency and voltage, in the frequency, voltage, phase are in line with the requirements of the grid to set the time before the release of the closing signal, so that it can be safely and securely connected.
Q:In a photovoltaic grid-connected project, the role of the inverter is to convert the voltage into AC 220V or 380V for the grid, since the transformer will raise the voltage again
Part of the distributed grid-connected projects, the basic are "spontaneous use, the power of the Internet," these do not need to boost, because the extra power is actually consumed by the surrounding electricity users, do not boost to a Level power grid;

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