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Power Automation & Safety

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Uninterruptible Power Supply(UPS)

Introduction Features
Principles Classifications
Engineering Data Further Information
Explanation of Terms Troubleshooting

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Primary Contents



Rated Input Voltage

The rated value of the input voltage that can be used by the UPS.

Input Voltage Range

The input voltage range in which a normal operation is possible. A UPS performs backup operation when the input voltage is outside of this range.

Maximum Current

The maximum input current of the UPS.
Maximum Current Conditions
It will be the maximum current value when the following conditions are met.

(1)The rated load is connected to the UPS.

(2)The input voltage is at the minimum value.

(3)The battery is being charged.

Input Terminal

The input terminal type of the input power supply.

Input Protection

The type of input overcurrent protection in the UPS.
This can be either a fuse or a resettable overcurrent protector.
A fuse must be replaced when input overcurrent protection is activated. With a resettable overcurrent protector, the UPS operation can be restored by operating a switch.

Input Protection Capacity

The detected current value for the input overcurrent protection.

Inrush Current

The inrush current on the input power supply side of the UPS.

Rated Current

The rated current on the output side of the UPS.

Switching Time

The amount of time required to switch to backup operation when a power failure occurs.

Output Voltage

The rated value of the output voltage.

Output Terminal

The output terminal type of the UPS output.

Overload Protection

The conditions for the operation of overload protection when the rated current on the UPS output side is exceeded.

Battery Type

The type of battery pack in the UPS.

Battery Rated Voltage

The rated voltage of the battery pack in the UPS.

Battery Rated Capacity

The rated capacity of the battery pack in the UPS.

Expected Battery Life

The life expectancy for the battery when used for trickle charging to perform backup operation one or two times per month.

Auto Battery Check Function

A self-diagnostic test is automatically performed at regular intervals to diagnose and send notification when the battery needs to be replaced.

Battery Life Counter Function

A function that uses the UPS's built-in temperature sensor to calculate the battery life expectancy and send notification when battery replacement becomes necessary.

Charging Time

The amount of time required to fully charge the battery after it has been completely discharged.

Backup Time

The estimated backup time that is possible in an environment with an ambient temperature of 25 °C and when the battery is in its initial state (i.e., with no deterioration)

Ambient Operating Temperature and Humidity

The ambient temperature and humidity range in which the UPS can be used.

Ambient Storage Temperature Humidity

The ambient temperature and humidity range in which the UPS can be stored.

Vibration Resistance

A reference value for vibration resistance.

Shock Resistance

A reference value for shock resistance.

Cooling Method

The cooling method of the UPS main unit.

Forced-air cooling: An internal cooling fan operates when needed for cooling.

Natural air cooling: No built-in cooling fan is used for quieter operation.

Voltage Resistance

A reference value for voltage resistance.

Insulation Resistance

A reference value for insulation resistance.

Applicable Safety Standards

The safety standards that the UPS conforms to.

UL : A safety standard applicable in the USA that symbolizes the safety of electric goods.

CE : A mark (called the CE Marking) that indicates compliance with EC directives. The EC directives are safety standards applicable in the EU that symbolizes the safety of electric goods.

Internal Power Consumption

The power consumed by the UPS (Unit: W).

Normal: The power consumption during normal operation when the battery is fully charged.

Maximum: The power consumption during normal operation at the maximum battery charging current.

Serial Communications

Whether or not there is a RS-232C or USB communications port and the interface terminal.

I/O Port

Whether or not there are I/O signals and the interface terminal.

Additional Functions

Settings, tests, and other functions built into the UPS.