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4. Overview
The SANUPS E11A is a stationary-type uninterruptible power supply designed to provide
high-quality, stable AC power to critical equipment that requires continuous,
uninterrupted power.
The UPS is comprised of rectifier, charger, inverter, battery, and utility power transfer
(bypass) circuits. In the event of failure of the AC utility power source, AC output to the
load is sustained by the inverter converting DC power from the batteries. When the utility
power recovers, inverter operation continues while the batteries are recharged. The UPS
is therefore able to supply completely uninterrupted AC power to connected loads without
even momentary power loss.
UPS Block Diagram (for E11A202U001)
Control
Circuit
Fuse
Bypass Breaker
Bypass
Circuit
AC
Input
Inverter
Batteries
Rectifier
External
Batteries
DC
/
DC
Converter
LANI
/
F
(option)
PC
I/F
CARD
I/F
MAIN
MCCB
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Fuse
Charger
AC
Output
＜
OUTPUT1
Breaker
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Note:
As for
E11A202U001J,
shape and the
number of
receptacles are
different.