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Recommended products

On-line UPS


Az On-line dual conversion uninterruptible power supplies, also known as VFI UPSs, are the most protective types. These uninterruptible power supplies are suitable for all applications: industrial, telecommunications, IT or data center.

Their advantage is that the devices are powered by the inverter at all times, so there is no switching time and the devices do not perceive anything from the mains interference. Check out our products in the on-line UPS category!


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Cover Basic 1 1kVA/0,9kW On-line UPS
105 719 Ft+VAT=134 263 Ft
  pcs    Add to cart
Riello SEP 700 0,7kVA/0,63kW on-line UPS
159 755 Ft+VAT=202 889 Ft
  pcs    Add to cart
Cover Core 1K 1kVA/0,9kW On-line UPS
169 911 Ft+VAT=215 788 Ft
  pcs    Add to cart
Cover Core ONE 2K 2kVA/2kW On-line UPS
219 406 Ft+VAT=278 646 Ft
  pcs    Add to cart
Riello SEP 1500 1,5kVA/1,35kW on-line UPS
226 969 Ft+VAT=288 251 Ft
  pcs    Add to cart
Riello SEP 2200 2,2kVA/1,98kW on-line UPS
285 904 Ft+VAT=363 097 Ft
  pcs    Add to cart
Cover Core ONE 3K 3kVA/3kW On-line UPS
294 135 Ft+VAT=373 552 Ft
  pcs    Add to cart
Riello SEP 3000 3kVA/2,7kW on-line UPS
319 511 Ft+VAT=405 778 Ft
  pcs    Add to cart
Riello SDH 1500 1,5kVA/1,35kW on-line UPS
344 675 Ft+VAT=437 738 Ft
  pcs    Add to cart
Riello SER 1500 1,5kVA/1,35kW on-line UPS
357 339 Ft+VAT=453 820 Ft
  pcs    Add to cart
Cover Core 6K 6kVA/6kW On-line UPS
391 354 Ft+VAT=497 020 Ft
  pcs    Add to cart
Cover Core 10K 10kVA/10kW On-line UPS
531 250 Ft+VAT=674 688 Ft
  pcs    Add to cart
Riello SDU 4000 4kVA/3,6kW on-line UPS
588 367 Ft+VAT=747 226 Ft
  pcs    Add to cart
Riello SDU 6000 PDIST 6kVA/6kW on-line UPS
916 158 Ft+VAT=1 163 520 Ft
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Cover JR 10 10kVA/10kW On-line UPS
1 029 740 Ft+VAT=1 307 769 Ft
  pcs    Add to cart
Cover JR 15 15kVA/15kW On-line UPS
1 207 708 Ft+VAT=1 533 790 Ft
  pcs    Add to cart
Cover JR 20 20kVA/20kW On-line UPS
1 316 615 Ft+VAT=1 672 101 Ft
  pcs    Add to cart
 

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When do I need an on-line uninterruptible power supply?

  1. If the device is very sensitive and even a very short network outage or minimal network disruption can lead to downtime, data loss, or failure.
  2. If the system's power is greater than 10 ÷ 20kVA.

Why are these online UPSs less reliable?

Online uninterruptible components (semiconductors, capacitors, etc.) are subject to constant load and high temperatures, which negatively affects their service life. Of course, it's also a matter of scaling, a thoughtfully designed and well-built on-line uninterruptible power supply can be more reliable than a poor quality VFD UPS.