Uninterrupted Power Supply
A ups (uninterruptible Power Supply) is an electrical apparatus that supply emergency power to a load when the main input power source fails. Sustema distributes major manufacturers of the UPS industry to equip the users with the most appropriate UPS and to maximize the uptime of the IT load. From 500 VA to 1000KVA, Sustema covers all power needs and has all the necessary expertise to match your needs. Multiples technologies are available: Line-interactive, online double conversion, outdoor/indoor use, over IP control and management, and multiple redundancies.
![]() |
![]() |
![]() |
Solutions
Uninterruptible Power Supply devices not only provide you with power backup, but also take care of electronic appliances by maintain the voltage constantly. In case of sudden power failure, you have enough power backup to save your important data and shut down the computer.
In addition of protecting against power failure, most UPS are also capable of correcting common utility power problems as surge protection, sag, spikes, noise, frequency instability, and harmonic distortion.
Applications
UPS devices are the essential requirements of every home, research organizations, hospitals, airports, universities and hotels. While not limited in protecting a particular type of equipment, the applications are various: Computers, data centers, telecommunication equipment, or any other electrical equipment where a power failure is possible. Uninterruptible power supply devices without any doubt have become an essential part of daily life.
UPS Request for Quotation
Calculate the total load’s APPARENT POWER (VA).
First you need to calculate the apparent power (in VA) of your loads, by dividing the real power by its power factor. If you don’t know your equipment’s power factor, you can assume it to be 0.7.
Calculate total load’s REAL POWER (Watts).
Second you need to calculate the total power (in Watts) of your loads. You can get this info from your equipment name plate physically, or by looking at their manuals.
Pick a UPS with a higher rating than your load’s apparent power.
Select a UPS with a larger rating than your load’s apparent power. It is prudent to allow 20 to 25% extra capacity for future needs when finally deciding on a UPS.
As an example:
If have a 1000 Watt server and a 400 Watt switch, your total load power equals 1400 Watts. You can use this rule of thumb to calculate the total apparent power of your load : 1400 Watts divided by 0.7, equal 2000 VA.
To receive a quote from one of our sales specialist, please complete the form below:




