Specifications

4
In order to select the right UPS according to the customer’s needs, it is mandatory to carefully evaluate the application to be protected.
Each kind of UPS de nitely has speci c features , depending on the application it has been designed for.
Knowing the power absorbed by the load is not all.
Even though the UPS has enough power to support the e ective load it doesn’t mean that’s the best choice.
CLASSIFICATION
XXX YY ZZZ
Output dependence on the Input line Output wave shape Dynamic performance on the Output
Standard EN 62040-3 de nes UPS classi cation according to the performances.
The  rst part of the classi cation de nes the type of UPS:
• VFI (Voltage and Frequency Independent):
Output Voltage and Frequency are independent from the input ones (from mains). Frequency variations are controlled accordingly with
standard IEC EN 61000-2-2.
• VFD (Voltage and Frequency Dependent):
The output Voltage and Frequency are the same as the input ones with no corrections.
• VI (Voltage Independent):
The output Frequency is the same as the input ones; input Voltage variation are reduced and stabilized by electronic/passive regulating
devices.
The second part of the classi cation code de nes the output wave form during normal and battery powered operation:
• S: sinewave (THDu < 8%)
• X: sinewave with a linear load; no-sinewave with a distorting load (THDu > 8%)
• Y: no-sinewave
The third part of the classi cation code de nes the dynamic performance of the output voltage during load variations, in
three di erent conditions:
• variation of the operating modes (normal and battery-powered),
• linear load connection by steps in the normal and battery-powered modes,
• non-linear load connection by steps in the normal and battery-powered modes.
EXAMPLE
VFI SS 111
VI XX 112
VFD YY 113
BUYING GUIDE
CHOOSING THE RIGHT UPS
You can download the UPS Con gurator free of charge from our website: www.metasystemenergy.com.
It will help you determine the right size of UPS based on your needs. The modular structure of MetaSystem UPS
gives you the option of a wide choice of di erent runtimes. We have listed the most common runtimes in our
table: for any other runtimes, we suggest using the UPS Con gurator software.