Volt Polska Sinus PRO 500E 500 VA (3SP050012E)
 | Outdated Product Type: smart; Form factor: standard (Tower); Switching to battery (ms): 4; Input voltage: 1 phase (230V); Input voltage range (V): 170 – 270; Peak output power (VA): 500; Rated output power (W): 300; Output waveform: pure sine wave (PSW); Dimensions (mm): 170x146x237; Weight (kg): 3.9; E-Catalog uses affiliate links compensated by our partners. |
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Two sockets. Info screen. Carrying handle.
Noisy fan.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Volt Polska 2026 - new arrivals, bestsellers, and the most relevant models Volt Polska.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Volt Polska 2026 - new arrivals, bestsellers, and the most relevant models Volt Polska.
How to choose UPSMethods for choosing UPS for boiler, computer, refrigerator and other equipment
How to choose UPS batteryWhat are the UPS battery technologies, how to calculate their required capacity and correctly take into account the charging current?
Model overview based on user reviews
The Volt Polska Sinus PRO 500E 500 VA is an interactive UPS designed for stable backup power, featuring a pure sine wave output suitable for sensitive electronics. It supports a load of up to 300 W and can handle power surges up to 500 W. Users appreciate its automatic switching to battery during power outages, although some have experienced issues with it not switching automatically, requiring manual intervention. The UPS is equipped with two sockets and an information screen, but it is noted for its noisy cooling fan and loud discharge alarm. While some users report reliability issues, such as the UPS failing to charge the battery after a short period, others find it effective for powering devices like gas boilers during outages. The product's quality may vary depending on the batch, indicating potential quality control issues. Despite these concerns, it remains a popular choice for those needing reliable backup power.
Pros
Cons
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I purchased this model along with a 100 amp-hour gel battery specifically to power a gas boiler during frequent power outages. It handled the task excellently. The boiler started up without any issues. At times, the light is switched off, the wine automatically switches to the battery, while the boiler does not show any pardon. Forgetting that such surges in voltage (at the boiler’s front) are automatically switched on in the case of low voltage, or it’s dependent. Trochy to make noise under the hour of cooling, prote wines to stand in my kitchen (by stripping off the gel battery itself) and wines do not matter. |
Purchased Sinus PRO 800E along with a 100 Ah AGM battery due to frequent power outages to power the gas boiler and other low-power devices in the apartment. It handles its tasks excellently, even supporting the refrigerator (albeit an inverter one) without any issues. The display is clearly legible and understandable. It is equipped with two 230 V sockets at the back. The only drawback is the noise from the cooling system. It's uncomfortable to be in the same room during battery charging or heavy discharge. However, it is understandable, as it was not designed for residential use. Besides the boiler, we use it to charge laptops, power a monitor or TV, and for lighting. compactness, clarity of victories, turning civilization into a donkey) quite noisy  Valerii Olifirenko: use Volt Polska Sinus PRO 800E few months |
It worked for 1.5 months and that's it, the battery stopped charging. The service said that the components in these models are not very high-quality, depending on the batch. I was unlucky. That is, the manufacturer has a problem with quality control. I bought it in September 2023, in October I had to buy another UPS. For the first 1.5 months, everything was fine, it worked with a 100 AH AGM battery and only with a 125W double-circuit boiler + sometimes I connected a tablet/smartphone charger to the second outlet. The UPS is a little loud, it failed after 1.5 months. Stopped charging the battery.  Sergey Chernysh: use Volt Polska Sinus PRO 500E few months |
3 out of 4 user review(s) shown
1 more user review(s)
Video reviews
Volt Polska Sinus PRO 500E is a balanced interactive UPS that is designed to provide stable backup power to your electronics.
Stabilization and redundancy
This UPS is designed to operate with 12V batteries and does not come with its own battery. It is designed to stabilize the mains voltage, and if there is no voltage in the outlet, it automatically switches the connected load to power from the battery. This process only takes about 4 milliseconds. The output of Sinus PRO 500E can produce a voltage of 230 V with a frequency of 50 Hz.
Pure sine
One of the key characteristics of this model is the output signal in the form of a smooth sine wave. This provides reliable and stable power for power tools, refrigerators, air conditioners and other sensitive electronics. Information about the input and output parameters of the UPS is displayed on the information screen, which also shows error indicators in the operation of the device.
Power parameters
In long-term operation, the UPS supports a load of up to 300 W, and in the short term it can withstand power surges of up to 500 W. There are two sockets on the back panel of the device for connecting devices. There is also a cooling fan, which can be quite noisy. In addition, the model has a handle for easy portability, despite its weight of about 3.9 kilograms.
Volt Polska Sinus PRO 500E is a reliable and stable UPS that provides pure sinusoidal voltage and allows you to connect sensitive devices to backup power.
SimilarCompare using chart →
standby, signal: similar to a sinusoid, power: 350 VA, effective 210 W, battery: 7 Ah, batteries 1, sockets: C13/C14 with reserve, C13/C14 without reserve
smart, rack, signal: sinewave, power: 3000 VA, effective 2700 W, battery: 6 Ah, external battery connection, sockets: C13/C14 with reserve, C19/C20 с резервом 1
smart, signal: sinewave, power: 1500 VA, effective 980 W, battery: 17 Ah, batteries 2, external battery connection, sockets: C13/C14 with reserve
smart, rack, signal: sinewave, power: 1500 VA, effective 1000 W, battery: 9 Ah, batteries 4, sockets: C13/C14 with reserve
smart, signal: sinewave, power: 750 VA, effective 500 W, battery: 7 Ah, batteries 1, external battery connection, sockets: type B (American), with reserve 6
smart, rack, signal: sinewave, power: 1440 VA, effective 1100 W, battery: 9 Ah, batteries 3, sockets: type B (American), with reserve 10
smart, signal: sinewave, power: 1350 VA, effective 810 W, battery: 7 Ah, batteries 1, sockets: type B (American), with reserve 5, without reserve 5
standby, signal: sinewave, power: 425 VA, effective 255 W, sockets: type B (American), with reserve 4, without reserve 2
smart, rack, signal: sinewave, power: 750 VA, effective 500 W, battery: batteries 1, sockets: type B (American), with reserve 6
smart, signal: similar to a sinusoid, power: 700 VA, effective 420 W, battery: 9 Ah, batteries 1, sockets: type G (UK), with reserve 3, without reserve 3
standby, signal: similar to a sinusoid, power: 700 VA, effective 370 W, battery: 5.5 Ah, batteries 1, sockets: type B (American), with reserve 5, without reserve 3, USB-A
smart, signal: similar to a sinusoid, power: 1500 VA, effective 900 W, battery: batteries 1, sockets: type B (American), with reserve 6, without reserve 4, USB-A, USB-C