Outdoor Off-Grid Solar Inverter 500W-2000W Specially Designed for Outdoor Communication Equipment

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Product Description:

Outdoor Off-Grid Solar Inverter 500W-2000W    

EA-GF outdoor series is specially designed for outdoor communication equipment, network equipment, traffic control systems; it is also for corner of the city, the countryside, and the mountains. The whole unit adopts high and low temperature resistance, corrosion resistance, dustproof, waterproof with multi-format mode, MPPT control, online regulation, short circuit protection, output frequency adaptable, output overload protection, battery charge management, monitoring, energy saving,environmental protection and other functions; This series of products can effectively ensure communication, network, traffic control equipment's power supply and operation stably, and be good partner of the outdoor communications equipment, network equipment, and traffic control systems.


● Special design for outdour use
● Multi-setting
※ Can adjust the use mode according to the configuration status and sun source status: PV priority or AC priority mode;
※ Can select the charging current based on the configured capacity of the battery.
● High reliability
※ Independent MPPT (Maximum Power Point Tracking) control microprocessor system
※ Independent inverter microprocessor control system
※ Many kinds of protection for overcharge, over-discharge, short-circuit, overload ect., and special PV reverse connection 
protection as well
● Isolated and pure sine wave technology
● Advanced MPPT control system
● Intelligent charge management
● LED display mode
● Wide input range
● High-speed synchronous conversion
● Friendly alarm system
● Unattended and intelligent monitoring
● No-load off function (Option)
● Frequency auto sense
● Intelligent communication port (option)














Battery Voltage



Working Mode

PV(Photovoltaic priority) / AC (AC priority) Optional


Input Voltage Range

24Vdc – 45Vdc

48Vdc – 90Vdc

PV Panels Configuration

(Suggestion) (vmp)

30Vdc – 36Vdc

60Vdc – 71Vdc

PV Panels Configuration(Suggestion)

(Imp≤rated current)






Max Charge Current

10-40A Optional

10-60A Optional

Max Transfer Efficiency



Display Panel


Mains Status(option)

Input Voltage Range


Input Frequency Range

45-65Hz (over this range transfer to inverter model auto.)

Output Voltage Range

220Vac± 10%

MAX Input PF (AC/DC)


MAX Efficiency


MAX Charge Current

12A Max( battery discharge ends; Start charging when PV charge

current less than the set value)

AC Over Load

110% load, after 255s, transfer to bypass,120% load ,after 60s transfer to bypass,

150% load, after 10s, transfer to bypass, auto recover after decrease load

Short Circuit

Input fuse / breaker

Inverter Output

Output Voltage

220Vac± 5%

Output Frequency

50 Hz / 60Hz ± 1% Auto.

Output PF



Line load≤ 5%

PV-AC Transfer Time

5 ms typical value; Max.8 ms

Max Efficiency


Nverter Overload

110% load 255s shut down,120% load 60s shut down,150% load 1s shut down

No Load Off (Optional)

Load< 5% after 1min , transfer to bypass mode

Short Circuit

System Shut down automatically

AC Abnormal

Beeping 1/4s,auto silence after 40s


Battery Low

Beeping 5/ 1s

Over Load

1/ 1s

Communication Port (optional)

Rs232 / USB / SNMP(Setup available for regular start/shutoff)

Dry Contact

PV failure、battery low-voltage、overload、bypass、

inverter failure/ remote start generator dry contact signal


Output Sockets

RS232/USB/SNMP(Setup available for regular start/shutoff)

Surge Protection



CEN62040-2:2006;EN61000-3-2:2006; EN61000-3-3:2008

IP Class


Ambient Temperature

0℃ ~ 40℃

Ambient Humidity

10℃ ~ 90℃ (Non Condensed)


≤ 50dB

Working Altitude

2000m(Every 100m increase derating 1%)

Inverter Size WxDxH(mm)

280x600x900(with space for 2units 100A-200Ah battery)

540x600x900 (with space for 4units 100A-200Ah battery)

Packing Size WxDxH(mm)



·         Q. What is an UPS and What it is for ?

An uninterruptible power supply (UPS) is a device that allows your computer or telephone switch or critical equipement to keep running for at least a short time or longer time when the primary power source is lost. It also provides protection from power surges, spikes, brownouts, interference and other unwanted problems on the supported equipment.

·         Q. How long the UPS to run when power goes?

This can take 3 paths.
1.You can pick a UPS that is rated for pretty much the full VA you need so it will be running at 100% of capability and will thus last 'n' minutes.
2.You can pick a UPS that is rated at a much higher VA value than you really need so, for example, is running at 50% of capability and will thus last for longer than the UPS from option 1.
3You can use extra external battery packs to run for longer. If charging capability allows, the more and the bigger batteries you take with, the longer time UPS runs. 
or using a generator after about 6 hours, it will be more cost-effective, with a short runtime UPS to bridge the generator start-up gap.

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Q:The working principle of photovoltaic grid - connected inverter
Inverter will be converted into alternating current DC, if the DC voltage is low, then through the AC transformer boost, that is, the standard AC voltage and frequency. For large-capacity inverter, because the DC bus voltage is high, AC output generally does not require transformer boost that can reach 220V, in the small and medium capacity of the inverter, because the DC voltage is low, such as 12V, 24V, It is necessary to design a boost circuit.
Q:How the output voltage of the PV inverter and the grid-connected voltage are determined
Inverter is the DC power (battery, battery) into alternating current (usually 220V, 50Hz sine wave). It consists of inverter bridge, control logic and filter circuit. Widely used in air conditioning, home theater, electric wheel, power tools, sewing machines, DVD, VCD, computer, TV, washing machine, range hood, refrigerator, video recorders, massage, fan, lighting and so on. In foreign countries
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:What are the methods of photovoltaic grid-connected inverter control
Inverter main circuit need to have a control circuit to achieve, generally have square wave and sine wave two control methods, square wave output inverter power supply circuit is simple, low cost, but low efficiency, harmonic components. Sine wave output is the development trend of the inverter, with the development of microelectronics technology, there are PWM function of the microprocessor has also come out, so the sine wave output inverter technology has matured.
Q:PV grid-connected inverter can directly load it?
TL5001 operating voltage range of 3.6 ~ 40V, its internal with an error amplifier, a regulator, oscillator, a dead zone control PWM generator, low voltage protection circuit and short circuit protection circuit
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter will be directly sent to the power grid, so to track the frequency of the grid, phase, the equivalent of a current source. Of course, there are some inverters called low-voltage crossing ability, you can do PQ adjustment
Q:Photovoltaic grid-connected inverter without DC emc how will happen
can convert light energy into electricity, so that the current flow from one side to the other, the general can be issued equivalent to 10 to 20% of the received light energy. In general, the stronger the light, the more electricity is generated. Its working principle is based on the semiconductor PN junction of the photovoltaic effect. The so-called photodynamic effect is when the object by the light, the object within the charge distribution of the state of the electromotive force and current generated an effect.
Q:Grid-connected inverter is generally divided into photovoltaic power generation grid-connected inverter, wind power grid-connected inverter, power equipment and grid-connected inverter and other power generation equipment power generation inverter.
Grid-connected inverter is generally used with large-scale photovoltaic power plant system, a lot of parallel PV string is connected to the same set of inverter DC input, the general power of the use of three-phase IGBT power module, power
Q:The function of photovoltaic grid - connected inverter
By dc / dc conversion to increase or decrease the input voltage, adjust its output to achieve maximum efficiency.
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
The use of a high-power grid-connected inverter into the grid, the need for line design is relatively simple, because the DC and AC lines are separated, the use of convergence box to summarize, DC bus and then into the grid inverter

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