This interactive UPS sizing calculator will help determine the VA Load Rating of your equipment, evaluate your operating environment and make a recommendation on the most suitable type of UPS system.
Section 1: Load Values
Uninterruptible Power Supplies are sized according to the equipment they support. The selections below will assist you in calculating the 'VA' rating of your computer system.
AC Voltage: Volts
Computer System:
Monitor:
Additional Peripherals
NOTE: Check any of the following equipment that is to be supported on the UPS system. It is not recommended to power such items as printers unless their function is mission-critical.
 Additional IDE/SCSI Hard Disk Drives
 RAID Subsystem & SCSI Disk Drives
 External Removable Disk Drive (eg Zip)
 External Hard Disk Drive (eg Jaz)
 External Modem
 External ISDN Adapter
 Desktop Scanner
 Network Router/Hub
 Standard Dot Matrix Printer
 Widesheet Dot Matrix Printer
 Inkjet/Bubblejet Printer (Standard)
 Commercial Colour Printer (High-end)
 Typical Laser Printer
 Commercial Laser Printer
 Multifunction Office-in-One Peripherals
 Multimedia Speakers (Standard)
 Multimedia Speakers (With Subwoofer)
 Other (Specify VA rating): VA
NOTE: Check this option and specify the VA rating of devices you wish to protect that are not listed above. For help converting Watts or Amps to VA for 'other' devices, use the pop-up tools below:
Expansion Margin
Decide how much room you will require for expansion purposes. Eg, 25% if you expect to add another 25% more load in the future. Remember, think ahead when sizing a UPS. Power requirements for computer systems normally grow as new peripherals come onto the market. Always go to the next size.

    % Margin for Expansion

Click the button below to calculate your load rating and recommended UPS system sizes.

 Estimated Load Rating

  VA

 Minimum UPS Size:

  VA

 Recommended UPS Size:

  VA

Now go on to Section 2 to determine the best type of UPS to use. These figures will be used below.

Section 2: Level of Protection Questionnaire

Different classes of UPS give different levels of protection so which one do you need? The following questionnaire analyses the major factors for consideration when selecting a UPS.

Q1. If power fails and data is lost or equipment damaged:
Will it be inconvenient? Yes  No
Will it cost a considerable amount of money in down time? Yes  No
Is the equipment or system mission critical? Yes  No
Q2. Environment
Do you ever power your equipment from a generator? Yes  No
Do you or your immediate neighbors have any of the following:
welders?
compressors?
large electric motors?
refrigerators (commercial)?
Do you regularly experience any of the following:
power failure (monthly)?
lights dim (frequently during the day)?
lightning (remote or rural locations)?
Selecting the correct type of UPS
Click 'Calculate Score' below to determine the level of protection required for your application.
    
Our Recommendation
Based on all the details above, Upsonic Power recommends the following UPS system for your requirements. Please contact Upsonic Power on 1800 634 307 if this sizing guide is unable to find a UPS suitable for your requirements.

 

Model:  
Reason:
Capacity:
Comments: 

 




















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