For Proper Operation
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(1) Input Power Requirements
The input power of this UPS is shown in the following table.
MODEL
AC input voltage
AC input frequency
A11H202U011TW
A11H202U111TW
A11H302U011TW
A11H302U111TW
120V (55 to 150V *
1
)
40 to 120Hz
*1. UPS operation switches to battery power supply after AC power supply operation continues for one minute
when AC input voltage is 96V or less.
And UPS operation switches to battery power supply immediately under the following condition;
when AC input voltage is 55 - 68V, load reduction factor exceeds 40%, or
when AC input voltage is 68- 80V, load reduction factor exceeds 70%.
(2) The current capacity of the AC power supply
The current capacity of the AC power supply must satisfy the requirements of the UPS.
(The current capacity varies according to the MODEL.)
MODEL
Input capacity
Recommended capacity of breaker
A11H202U011TW
A11H202U111TW
1.8kVA 20A
A11H302U011TW
A11H302U111TW
2.7kVA 30A
UL standard *
2
*2. Protect branch circuits by using the breaker of the specified capacity on distribution panels. To meet the
requirements of UL standards, always protect both polarities.
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(1) The UPS should be installed in the suitable environment.
See §10 “Installation”.
(2) Carefully consider the leakage current when a leakage
circuit breaker is installed on the input side.
The maximum leakage current of the UPS is 3mA.
(3) Keep the UPS at least 1 m (about 40 inches) away from
CRT displays. Other devices which may be sensitive to
magnetic flux should be kept away from the UPS,
as it emits a slight amount of magnetic flux.
(4) The UPS employs a fan for forced-air cooling. Provide a clearance at the front and back of the UPS to
permit free airflow at the air intake and exhaust vents.
(5) Perform settings or preparations for operation of the UPS before fixing the UPS on the floor.
at least 1m
(40 inches)
For installation of the UPS allow for the space at least 1 meter (40 inches) at the front and back
Note for working space
Summary of Contents for A11H
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