12kW Pure Sine Wave Off Grid Solar Inverter

$6,162.34

| 3 review(s) | Add your review

12000 watt without battery 3 phase off grid solar inverter with MPPT function; two kinds of start modes: step-down voltage start and variable-frequency start. Low-frequency pure sine wave inverter for solar power systems, converts 120V/ 192V DC to 208V/ 400V/ 480V AC. 12kw off grid inverter adopts a black pure aluminum radiator, which ensures the best radiating performance. An off-grid pure sine wave inverter is often used in precision machinery or remote locations.

Delivery date: 6-12 days

SKU: ATO-OGI-12kW

DC Input Voltage *

AC Output Voltage (3-phase) *

Output Frequency *

Add AC Input

Yes [+$124.36]

Add RS485 Interface

Yes [+$135.18]

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Overview
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Manual
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Overview

High-quality sine-wave AC output 12kW off grid inverter, no battery storage system. In the sunshine, the solar panels generate energy, and the off-grid inverter converts DC power to AC power. The off-grid inverter's primary role is to provide a stable AC power supply from renewable sources and batteries, enabling self-sufficiency and independence from the conventional power grid. This type of three-phase off-grid inverter is essential for locations that are not connected to the traditional power grid, such as remote cabins, rural areas, or mobile setups like boats and RVs.

Specifications

Model		ATO-OGI-12kW
Size (DWH)		550550760mm
Weight		165kg
Certificate		CE, UL, SA, SAA, VDE
Warranty period		12 months
AC Input	Rated voltage	AC input voltage is the same as the AC output voltage
DC Input	Rated voltage	96V/ 108V/ 120V/ 192V DC (can be customized)
	Rated current	63A @192V DC
AC Output	Rated output power	12kW
	Output waveform	Pure sine wave
	Rated voltage	208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 460V/ 480V (optional)
	Phase	3-phase 4-wire + PE wire (single phase/ split phase can be customized; please contact us by email)
	Rated phase current	18A @380V AC
	Frequency	50Hz or 60Hz
	Power factor	>0.99
	Overload ability	150%, 5 seconds
	Efficiency	>93%
	Waveform distortion rate	THD<3%
	Dynamic response (0 to 100% load)	5%, ≤50ms
	Display	LCD
	Running mode	Working continuously
	Electrical insulation properties	2000Vac, 1min
	Communication interface	RS485 (optional), can remotely control the start/stop of the inverter and convey the data as below: 1. Input DC 2. Input DC voltage 3. Output AC 4. Output AC voltage 5. Power consumption (kWh) 6. Some fault information
	Battery charging function	Can be customized; please contact us
Protection Function	Protection	Input reverse polarity, under-voltage, over-voltage, output over-current, short circuit, overheating
	Cooling method	Fan-cooled
	Short-circuit protection	No automatic recovery; need to restart the machine
Working Environment	Noise (1 meter）	≤50dB
	Degree of protection	IP20 (indoor)
	Working altitude	≤2000m
	Working temperature	-25~+55℃
	Relative humidity	0~90%, non-condensing
Note	The above parameters are for reference only and can be customized according to the customer's requirements!

Details

LCD Display

It enhances user experience by offering straightforward control and configuration options, often through a user-friendly interface. It provides clear and easy-to-read information on the inverter's status, such as voltage and current. The display can show error codes and alerts, enabling timely troubleshooting and maintenance of 12kw off grid inverter. An LCD consumes minimal power.

High Speed Cooling Fan

The solar power inverter generates heat during operation due to power conversion. The cooling fan improves cooling efficiency, which helps regulate the temperature and prevents overheating of off grid pv inverter. The high-speed fan ensures stable operation even in hot environments, reducing the risk of unexpected shutdowns. The fan can operate at varying speeds based on the inverter's load, making it energy efficient.

Multiple Protection Functions

Short-circuit protection quickly detects and isolates faults, preventing damage to the inverter and other connected devices. Over-voltage and under-voltage protection ensure that the PV inverter off-grid operates within safe voltage ranges, protecting the system from fluctuations. These protection functions enhance the safety, reliability, and longevity of off-grid inverters and the systems they support.

Features

Two kinds of start modes: Step-down voltage start and variable frequency start. Customers can set the start mode according to the type of their load.
The output voltage can be set between -40 % to +20 % of the rated voltage. The output voltage has an accuracy of ±1%.
Pure sine wave output. With a good dynamic response of less than 50MS, the waveform distortion rate is lower, with higher conversion efficiency and stable output voltage.
Adopts a black pure aluminum radiator, which ensures the best radiating performance.
Powerful data display function. LCD can display the DC input voltage, output frequency, phase voltage, phase current, AC bypass input voltage, power consumption (kWh), time and date, temperature, and fault code display.
Wide input voltage can work without a battery and solar charge controller, save more cost, and, with the MPPT wide voltage input function, maximize the use of solar power.

Applications

Home Use

Remote Location

Commercial Use

Precision Machinery

Manual

Off Grid Solar Inverter Catalog

FAQ

Tips: The off grid solar inverter LCD has no display, how to solve this problem?

Fault analysis: There is no battery current input. The inverter LCD power source is supplied by the battery.

Possible reason: 1. The battery voltage is not enough. When the battery is just delivered out of the factory, it is usually fully charged. However, if the battery is not used for a long time, it will be slowly discharged (self-discharge). The off-grid system has the voltage of 12V, 24V, 48V, 96V and so on. Some applications require multiple batteries in series to meet the system voltage. If the cable is not well connected, the battery voltage will be insufficient. 2. The battery terminal is reversely connected. The battery terminal has positive and negative poles. Generally, red is connected with the positive pole and black is connected with the negative pole. 3. The DC switch is not connected or the switch has a fault.

Solution: 1. If the battery voltage is not enough, the system can't work and the solar energy can't charge the battery. Then, it is required to go to another place to charge the battery to over 30%. 2. If it is a problem with the circuit, please measure the voltage of each battery with a multimeter voltage gear. When the voltage is normal, the total voltage is the sum of various battery voltages. If there is no voltage, check whether the DC switch, terminal block, cable connector, and so on are normal one by one. 3. If the battery voltage is normal, the wiring is normal and the switch is also turned on, but the solar photovoltaic inverter still has no display, it may be the problem of the inverter. Then, it is required to notify the manufacturer for maintenance.

Read more related blog: PV Off-Grid Solar System Troubleshooting

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Existing reviews

Powerful inverter with solid performance, but takes some setup

We installed this 12kW off-grid solar inverter for a remote workshop, and overall, it's been performing reliably. It delivers stable three-phase power and handles heavy equipment pretty well, especially with the pure sine wave output. The MPPT function helps make good use of solar input, and the cooling system does a decent job keeping temperatures under control. That said, the setup and configuration took a bit of time, so it's better suited for users with some experience.

From: Vito Adams | Date: 4/13/2026 8:12 PM

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Much better than I expected

This 12kW off grid inverter is much better than I expected. The panel display is also good. This grid off inverter adopts pure aluminum radiator, confirms the best radiating performance. I've been using it for three months now and haven't found any problems. I will order more!

From: Glack Mark | Date: 10/13/2024 9:21 PM

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I want to know the related matters of off-grid solar inverter

1)On detection of an AC Input. Does your pure sine wave inverter charge the battery bank and also transfer the AC input directly to it's load terminal (its AC output).
2) Does your pure sine wave design have a selective or fixed (depth of discharge) DOD protection setting. If it has any, please know what its DOD protection value/percent.
The above were not stated in your specification and user manual. I am messaging you from Nigeria, where I lack consistent power supply.

From: Matt Matt | Date: 9/9/2021 7:24 PM

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Responded by inverter.com

1. Yes, our off-grid solar inverter can be customized with AC charger function, and it can charge the battery pack and transmit AC input directly to its load terminal.
2. Our off-grid solar inverter has under-voltage and over-voltage setting protection function, which can be set according to your requirements. Also, you can tell us about your specific setting requirements.