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Single phase DC48V 300w-12kw Off-Grid Pure Sine Wave Solar Inverter
off-grid solar inverter with top-level and good quality.Single phase 48V.300W-12KW.
CPU intelligent power frequency pure sine wave inverter with high conversion efficency.Frequency with automatic selection from 50HZ&60HZ.powerful overload capacity.Eight kinds of protections.CPU intelligent fan controlling temperature.Commercial power assist powering load and recharging battery,This inverter has long life time and super property.
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1:Advantage

1.Pure sine wave output.Built-in transfer switch automatically transfers   between inverter power and incoming AC power

 

2.CPU management,intelligent control,module design

 

3.LED/LCD display function

 

4.High conversion efficiency (between 90%-98%)low consumption

 

5.Can match with various battery types,such as sealed lead acid battery,open lead acid battery,

   gel battery and different types of lithium batteries.

 

   Three-step intelligent charging mode available.

          -Able to charge various types of battery

          -Maximum charging current is adjustable

          -Can be use as a charger 

 

7.Also called a dynamic inverter,due to the advantage of having a powerful overload capacity. 

   For example,1KW model can power 1P air conditioning.2KW can power 2Ps of air conditioning,

   3KW can power 3Ps of air conditioning,etc.

 

8.With adopting the latest American low frequency circuit design and new electric materials, the whole 

   system is more stable,with a low malfunction rate and long-life.Under  normal usage, product life    expectancy is 8 years.

 

9.Protection: High voltage protection 

                 Under-voltage protection

                 Over-temperature shutdown

                 Automatic overload protection

                 Short-circuit protection

 

10.Power efficiency designing,resisting harmonic wave and inductive load ,safe and stable.

 

11.The frequency of 50/60HZ automatic selection,give priority to use AC and DC with automatic

     adjustment.display dynamic schematic diagram,comprehensive functions.easier to use.

 

12.Pure copper transformer , blind post and wire.High density conformal coating.Double ball bearing

   mute dc fan,Large LCD screen,Large current terminals,Best electric components,best packing,safe,

   efficient and high level.

 

 

 

2.Parameters

 

Solar Inverter Mode Specification

Power Consumption

300W~12KW

DC input specification

Nominal  Voltage

DC48V-AC220V

DC48V-AC110V

Input Voltage Range

40V-64V

Low Battery Alarm

42Vdc ± 0.3Vdc

Low Voltage shutoff

40.0Vdc ± 0.3Vdc

Low Voltage Recovery

48.0Vdc ± 0.3Vdc

Over voltage Shut off

64Vdc ± 0.3Vdc

Over Voltage Recovery

62Vdc ± 0.3Vdc

Efficiency

≥90%

AC input specification

 

AC 220V

AC 110V

Input Wave Type

Pure sine wave (utility or generator)

Pure sine wave (utility or generator)

Nominal Input Voltage

220Vac/230Vac/240Vac

110Vac/120Vac/130Vac

Low Voltage shutoff

180Vac±4%

85Vac±4%

Low Voltage Recovery

195Vac ±4%

90Vac ±4%

Over voltage Shut off

260Vac±4%

135Vac±4%

Over Voltage Recovery

255Vac±4%

130Vac±4%

Rule

The three stages

Constant current charging( Constant current stage) → constant voltage charging (constant voltage stage) → float charging (constant voltage stage)

Efficiency

≥98%

AC output specification

Nominal output Voltage

220Vac/230Vac/240Vac

110Vac/120Vac/130Vac

Output Volatge Range

±10% rms

Nominal output Frequency (Hz)

50Hz ± 0.3Hz/60Hz ± 0.3Hz(Automatic Selection)

Power Factor

1.0

Output Wave Type

Pure sine wave

Wave Form Deviation Factor ( THD )

≤3%( Liner Load )

Dynamic Response( 0~100% )

5%

Crest Factor( CF )

3:1

Over-Load Protection(SMPS load)

(110%<load<125%)±10%:Fault(shutdown output) after 15 minutes
(125%<load<150%) ±10% :Fault (shutdown output) after 1minute
load>150% ±10% :Fault (shutdown output) after 20s

Other Description

Continuous Running Time

Continuous Running Allowed

Power on mode

Nominal Power×2%

Power-saving mode

≤6W

Safety

CE(EN62040-1)     EMC :EN62040-2, C2

Communication port

RS232 / customize

Cooling

Cooling-Variable Speed Fan run under ventilation condition.

Noise

<60dB

Operating Temperature Range( ℃ )

-10~+40

Storage temperature( ℃ )

-20~+55

Humidity

0-95%relative humidity(No Condensation)

Altitude( m )

 ≤5000(over1000 meters,Derated capacity in service )

Display

LED light +LCD screen

The Alarm Way

The buzzer alarm

Protection

Under-Voltage Protection,Over-Voltage Protection,Over-temperature Protection,Short Circuit Protection,Electric Leakage Protection,Over-Load Protection,Lower Volatage Recover,High Voltage Recovery高压恢复,智能温控,固障告警

 

3.The priciple diagram of this product

 

 

1:Diagram

 

 

 

2:Description of the diagram

AGive priority to the use of AC

step1When commercial power input is normal,AC power the load directly and recharge battery.

 

step2:hen commercial power is shut off,the system will switch to give priority to the use of DC in

5s automatically, ensuring normal working.

 

step3When commercial power is recovery, system will switch to give priority to use of AC and recharge battery.

 

BGive priority to the use of DC

Recharge battery mainly from solar energy,commercial power assist recharging.

 

step1When commercial power is normal,voltage of battery higher than 44v,DC turn into AC through inverter 

and power load.

 

step2When the voltage of battery is lower than 44V,the system switch to commercial power automatically and

 recharging battery.

 

step3When the voltage of battery up to54v, system switch tophotovoltaic power and power the load.

 

step4When both commercial power and photovoltaic power broke down, battey will shut off with voltage lower

 than 40v.if commercial power is normal,AC will power load and recharge battery.If commercial

 power still broke down, photovoltaic power recharge battery until voltage up to 48v and 

turn on with conversion mode.

 

 

 

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