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.

AC Input

MAIN

MCCB

 

Bypass Breaker

Bypass Circuit

 

Filter

Filter

AC Output

 

 

 

 

 

 

Note:

 

 

 

OUTPUT1

As for

Fuse

Rectifier

Inverter

Breaker

E11A202U001J,

 

shape and the

 

 

 

 

 

 

 

 

number of

 

 

 

 

receptacles are

 

 

 

 

different.

 

Charger

DC/DC

 

 

 

Converter

 

CARD I/F

 

 

 

 

 

 

Control Circuit

PC I/F

 

 

 

 

 

 

Fuse

 

 

 

 

 

＜

External

 

 

 

 

Batteries

Batteries

LANI/F (option)

UPS Block Diagram (for E11A202U001)

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