Eaton3S550D uninterruptible power supply (UPS) 550 VA 330 W 6 AC outlet(s)

This item seemed faulty/malfunctioning from the very beginning, and beeped when the computer was attached to it, without apparent reason (ie. no power cuts, no visible/noticeable electrical surges, since all other digital and electrical appliances - including a LED desk lamp - were fine, and all appeared to be in good working order. The seller was 100% useless in spotting the issue. I was referred instead to the manufacturer's website to troubleshoot the issue. Pity, that before getting to the point of troubleshooting, there was a technical question related to the type of UPS unit I needed assistance with, which I did not have the answer for. Again, I referred the question back to the seller, without receiving any assistance as they likely did not know the answer themselves. I wanted to have reassurances - never received by the seller - that this was not a defective unit which could damage my 27" desktop computer. So, in the course of the following months, the beeping continued on and off, and - call it a coincidence - my computer's internal SSD died back on the 12th of August 2022. My Apple technician told me to immediately disconnect the computer from that unit, and to return it. Once the new SSD drive was installed, I tried to see if the issue persisted also with the brand new SSD. However, there was no much to test as the entire row of 4 sockets to the side of the battery was not working/responsive, i.e. did not charge anything, less so back-up. So, I tried this UPS unit on another socket, and with a laptop computer this time. And the sockets on the side of the battery were all unresponsive/not working, therefore, could not use anything in there, for testing or otherwise as there was simply no power output in there. At this very point, I have initiated a long back and forth with the seller for return & full refund. I warn everybody thinking to buy this appliance to stay put and look somewhere else. Unless they are happy to waste long working hours liaising with a company which has been extremely uncooperative and difficult to deal with, in terms of technical knowledge, for the return (finally accepted thanks to Amazon intervention) and - ultimately - for the refund (which has not been issued, despite seeing on the Royal Mail trace & track website the returned item as being delivered already on the 14th of November 2022, some 10 days ago!). I am currently liaising with Amazon also for the refund. Long story short, do not buy from this seller as the amount of support and cooperation - should the item prove to be faulty or malfunctioning - you will receive will be next to zero, as their technical expertise. The seller is based in Spain and for anything, they rely on their Spanish warehouse to resolve any dispute. Stay clear from this manufacturer and seller, unless the UPS unit is sold directly by Amazon, into which case you won't likely need to go through the excruciating lengths and waste of working time and energy to resolve an issue which should have taken only a couple of hours to fix, not several weeks and months. With no end to this saga in sight.

I like everything about itThat's why it deserves 5 stars from me.

Ho acquistato l'Eaton UPS 3S 550 DIN per proteggere il mio computer e altri dispositivi elettronici da sbalzi di corrente e improvvisi blackout, e non potrei essere più soddisfatto! Questo gruppo di continuità è compatto e ha un design molto sobrio, che si adatta perfettamente sotto la scrivania senza ingombrare.Il suo funzionamento è impeccabile: in caso di interruzione dell'alimentazione, l'UPS entra immediatamente in azione, permettendomi di salvare il lavoro e spegnere il computer in sicurezza. Ho già testato il dispositivo in diverse situazioni e non ha mai mancato di attivarsi in tempo. È perfetto per proteggere il PC, il router e altri dispositivi essenziali da eventuali danni causati da sbalzi o cadute di tensione.Un grande vantaggio è che l'Eaton 3S 550 DIN non solo fornisce protezione contro i blackout, ma ha anche prese filtrate per proteggere da sovratensioni, il che lo rende una soluzione completa per la sicurezza elettrica. Inoltre, il suo utilizzo è estremamente semplice: basta collegarlo e sei subito protetto, senza bisogno di configurazioni complicate.L'autonomia di questo modello è più che sufficiente per gestire spegnimenti controllati di computer e altri dispositivi importanti. È silenzioso e non emette fastidiosi rumori durante il normale funzionamento, cosa che apprezzo molto.In sintesi, è un prodotto affidabile, efficace e a un ottimo prezzo per chi cerca un UPS di qualità per casa o ufficio. Lo consiglio vivamente a chiunque voglia proteggere i propri dispositivi elettronici da blackout e sbalzi di corrente!

utilisé pour alimenter un ordinateur et une box.utilisation de puis un mois et tout fonctionne très bien;

Comme alimentation de secours pour le fauteuil électrique d'une personne âgée.

Goed verpakt en verzonden.Deze UPS werkt perfect met de Synology NAS. De Synology geeft netjes een mail wanneer er overgeschakeld wordt naar batterij (dus stroomuitval). voorwaarde is uiteraard wel dat de router ook op de UPS aangesloten is. In mijn geval heb ik de NAS, de routers en Zigbee hubs op de WCD's aangesloten en mijn P1 meter op de USB aansluiting. De USB blijft ook actief bij stroomuitval. De Synology gaat netjes naar Standby als de accuspanning te laag wordt bij langdurige stroomuitval. Bij herstel van de Stroomtoevoer start de Synology weer op en krijg je wederom netjes een mail dat de AC toevoer hersteld is. Top dus!

Rapporto qualità/prezzo onesto per un prodotto dalle prestazioni eccellenti. Lo uso per tenere al sicuro computer e playstation da eventuali sbalzi di corrente o blackout improvvisi. Il design compatto e dalle dimensioni contenute permette di piazzarlo praticamente ovunque senza creare impiccio. Inoltre, caratteristica molto importante, si presenta in maniera del tutto silenziosa e senza alcun tipo di brusio di fondo.