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.
Note: If the load is a refrigerator or similar to a refrigerator with a compressor, it is recommended that the power of the inverter is more than 10 times the power of the load.
Features:
- 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 |
Protect function |
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)

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.