150kW Pure Sine Wave Off Grid Solar Inverter

$55,775.20

| 2 review(s) | Add your review

150kW high power off grid inverter works at 50Hz/ 60Hz low frequency 3-phase 4-wire power system. Grid-off inverter with pure sine wave output, no battery bank design, undervoltage protection, converting 240 volt, 300 volt DC to 400 volt, 480 volt (other desired voltages are customizable). Optional AC bypass function and RS485 communication interface. The efficiency of this off-grid solar power inverter is at least 93%.

Delivery date: 6-12 days

SKU: ATO-OGI-150kW

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AC Output Voltage (3-phase) *

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Add AC Input

Yes [+$943.22]

Add RS485 Interface

Yes [+$135.18]

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Overview
Details
Manual
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Overview

A good pure sine wave off-grid solar inverter is 150kW power capacity, a digital LCD for data info, with AC bypass input, and powerful protection functions, making it safer and more reliable. A 3-phase off-grid inverter is designed to convert DC power into AC power to supply the AC load. This high power capacity makes it suitable for off-grid systems with substantial energy demands. An off-grid PV inverter is a key component in standalone renewable energy systems, enabling the reliable and efficient supply of AC power without reliance on the grid.

Specifications

Model		ATO-OGI-150kW
Size (DWH)		100012001800mm
Weight		1050kg
Certificate		CE, UL, SA, SAA, VDE
Warranty period		24 months
AC Input	Rated voltage	AC input voltage is the same as the AC output voltage
DC Input	Rated voltage	240V/ 300V/ 360V/ 480V DC (can be customized)
	Rated current	208A @480V DC
AC Output	Rated output power	150kW
	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	228A @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

Black Oxide Heat Sink

Uses a thickened aluminum heat sink to improve the radiation-rate cooling surface is stable and not easy to oxidize, black coating does not interfere with electrical conductivity. This results in better cooling and a longer lifespan for the 150kW off-grid power inverter. The black finish can improve the overall appearance of the inverter and make it blend more seamlessly with other components.

Powerful Cooling System

A powerful cooling system enhances safety and durability. It helps maintain optimal operating temperatures, ensuring the grid-off power inverter runs efficiently and effectively. This cooling system prevents overheating, which can lead to equipment damage and failure. Additionally, a well-cooled inverter can handle higher loads without risking performance degradation.

Anti-dust Protection

Reasonable cabinet design with a dust-proof net to reduce dust, prevent accidental touch, and improve safety performance. Anti-dust features enhance the reliability of the off-grid PV inverter, minimizing downtime and maintenance needs. This protection maintains efficiency by keeping internal components clean and functioning optimally, ensuring stable power conversion.

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, saves more cost, and, with the MPPT wide voltage input function, maximizes the use of solar power.

Applications

Home Use

Remote Location

Off-Grid Solar System

CNC Machine

Manual

Off Grid Solar Inverter Catalog

FAQ

How does off grid inverter generate electricity for photovoltaic system?

PV Off-grid solar power generation system including solar panel array, solar charge controller, storage battery, Off-grid inverter, etc. In the sunshine, the solar panel converts the solar energy to DC power and charges the battery group by the charge controller. Then the off grid inverter converts the DC power into AC power to power supply the AC load.

When there is sufficient solar or wind energy, the inverter is used to convert the solar or wind energy to the load directly.
When there is insufficient solar or wind energy, the inverter will automatically supply solar or wind power to the load in conjunction with the AC grid or AC generator.
Automatic regulating stable voltage and stable frequency output. Can set solar or wind power priority or AC grid or AC generator priority on LCD.

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Existing reviews

Strong output and good for a large off-grid setup

Our factory installed this 150kW inverter at a remote site with several large three-phase loads, and it has delivered steady power without major issues. The pure sine wave output keeps the equipment running smoothly, while the LCD and optional bypass make day-to-day checks and maintenance easier. Setup took some planning because of the system size, but once everything was wired correctly, it has been a dependable part of the power system.

From: Abner Laurie | Date: 9/24/2026 12:25 AM

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Works as advertised!

It really should have a high rating because this solar inverter works perfectly. Keep the manual handy; you will use it a lot! The system worked beautifully overall. I recommended my friends to buy one and they all thought it was great.

From: Bas White | Date: 4/20/2022 2:54 AM

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