500 Watt Pure Sine Wave UPS Inverter

Cheap 500W pure sine wave ups inverter with charging, 1000W peak power, 500 watt ups inverter for home appliances is enough, maximum upload current 0.2A, 0.3A, 0.4A, 50Hz or 60Hz output frequency can be selected, with low voltage protection.
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Delivery date: 6-12 days
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500W (550VA) pure sine wave ups inverter for sale, with pure sine wave, high efficiency-converts the battery's available power, lightweight, switch-mode design and it is easy to use.


  • UPS inverter with pure sine wave output (THD<3%)
  • Built-in 3-stages battery charger, allow to run loads while charging.
  • Automatically switch with a ultra-fast switching time.
  • Soft-start technology uses in 500W pure sine wave ups inverter.
  • High efficiency-converts the battery’s available power.
  • 90% pure sine wave output, low distortion, waveform and main power line AC waveform are basically the same, equipment accuracy is small, low interference, low noise, strong load capacity, can meet any type of AC load, without damaging the load.
  • Aluminum shell with good heat dissipation and strong shock resistance.
  • Optional crocodile clip and cigar lighters, easy to connect batteries or vehicles' batteries.
  • 500 watt ups inverter with USB charging port: 5V, ideally qualified for powering your phone, laptop, pc, etc.
  • LED indicators for power and protections.
  • Uninterruptible power supply inverter with switch-mode design, easy to use.
  • Intelligent fan for cooling, long use life.

Parameter List:

Model ATO-UPSI-500
Rated power 500W (550VA)
Peak power 1000W
Input voltage DC 12V DC 24V DC 48V (if you want, please contact us)
Output voltage 100VAC or 110VAC or 120VAC or 220VAC or 230VAC or 240VAC±5%
Unload current less than 0.4A 0.4A 0.3A
Output frequency 50Hz±0.5Hz or 60Hz±0.5Hz
Output waveform Pure Sine Wave
Power switching time ≤ 9 ms
Phase 1- Phase (L, N, G), Do Not provide split phase configuration (L1, L2 + N, G)
Waveform distortion THD<3% (Linear load)
USB port 5V 1A
Max.efficiency 90%
Input current 20A 10A 5A
Input voltage range 10-15.5V 20-31V 40-61V
Low voltage alarm 10.5±0.5V 21±0.5V 42±1V
Low voltage protection 10±0.5V 20±0.5V 40±15V
Over voltage protection 15.5±0.5V 31±0.5V 61±1V
Low voltage recover 12.3±0.5V 24±0.5V 48±1V
Over voltage recover 14.8V±0.5V 29.5V±0.5V 59V±1V
Low voltage Alarm at first, voltage continuously reduce. LED red light on and shut down
Over voltage LED red light on, shut down
Over load LED red light on, shut down
Over temperature Alarm at first, tempurature continuously rise. LED red light on and shut down
Short circuit LED red light on
Input reverse polarity Fuse burn-out
Working temperature —10 ℃—+50 ℃
Storage temperature —30 ℃—+70 ℃
Dimension (mm) 308*135*78
Packing (mm) 360*215*90
Net. / gross weight (g) 2350/2800
QTY / Cth 8Pcs
Meas.Ctn (mm) 470*430*310
Warranty 12 months
Cooling method Intelligent air cooling

Pure Sine Wave UPS Inverter Output Sockets (Optional)

UPS inverter sockets


UPS inverter application

Tips:When a Pure Sine Wave UPS Inverter is Necessary?

Although the improved sine wave inverter can work in almost all cases, it may cause damage or reduce efficiency in some cases. The main category of equipment that operates more efficiently with pure sine wave inverters is electronic equipment that uses AC motors, such as refrigerators, compressors, and microwave ovens. In most cases, they still work, but may not be as effective, which may lead to excess heat accumulation and possible damage.

If you are using a CPAP machine, especially a CPAP machine with a heating humidifier, you may need to consider using a pure sine wave inverter to avoid damaging the equipment. It is always a good idea to check the manufacturer's recommendations, but most CPAP manufacturers recommend using pure sine wave inverters.

Existing reviews
Performed extremely well
This 500 pure sine wave ups inverter performed extremely well in a very hot and humid climate. It easily handled a mini fridge, 120V LED light bulb on a dimmer switch and charging 24V power tool batteries. I was then careful to keep in in shade.
Monserrat Jones | 12/7/2022 10:50 PM
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500W pure sine wave inverter is very convenient to use.
I received this 500W pure sine wave inverter today. It works very well and does not need to be installed. It is very convenient and can be used directly after connecting to the battery.
Megan Megan | 1/24/2022 11:09 PM
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High quality ups inverter
This is a high quality pure sine wave ups inverter. It is very reliable and does a good job. The inverter is well constructed. Battery charging works fantastic, and the inverter puts out plenty of power for all my needs. It definitely is worth the money.
Bruce Adam | 11/10/2021 6:05 PM
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