An uninterruptible power supply (UPS), offers guaranteed power protection for connected electronics. When power is interrupted, or fluctuates outside safe levels, a UPS will instantly provide clean battery backup power and surge protection for plugged-in, sensitive equipment. APC, a flagship brand of Schneider Electric, offers UPS options for ...

In my experience, the APC Easy UPS Online is a versatile, high-quality, cost-competitive UPS while the APC SmartUPS Online isSmart‑UPSTM On‑Line provides high‑density, double‑conversion online power protection for servers, voice/data networks, medical labs, and light industrial applications.

The main difference between the BackUPS and SmartUPS is the UPS topology they are built on. BackUPS = standby. SmartUPS (SUA units) = line interactive. SmartUPS (SURT units) = double conversion online. Please see the following kbase for a deeper discussion on this: http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=727&p ...

The difference between APC Smart-UPS and APC Easy UPS lies primarily in their design, features, and intended applications. While both provide power protection, Smart-UPS offers advanced features suitable for critical systems, whereas Easy UPS caters to basic power needs with a more straightforward approach.

The varied types of uninterruptible power supplies (UPS) and their attributes often cause confusion in the data center industry. For example, it is widely believed that there are only two types of UPS systems, namely standby UPS and on-line UPS. These two commonly used terms do not correctly describe many of the UPS systems available.