6,600৳
6,900৳
A device that provides battery backup when electrical power fails or drops to unacceptable voltage levels. Small UPS systems provide power for a few minutes; Enough to power the computer decently, while larger systems have enough battery for a few hours. In mission-critical data centers, UPS systems are used for several minutes until electrical generators take over. UPS systems can be set up to alert the file server for an orderly shutdown when an outage occurs and the battery is depleted.
Online UPS is the most advanced and most expensive UPS. The inverter is constantly providing clean power from the battery, and the computer equipment is never receiving power directly from the AC outlet. However, online units have cooling fans, which are noisy and may require some location planning for home users or small offices.
Offline UPS is the most basic model and is designed for use in small, non-critical applications that require protection against momentary loss of power. They are used to protect workstations, terminals or equipment below 1 kVA. When the mains supply fails or fluctuates outside the operating window of the UPS, a relay connects the load to the inverter output (resulting in a 4-8ms transfer time). In normal operation, with the mains supply, both the output voltage and frequency will track the input voltage and frequency respectively. When the UPS is operating normally with the inverter turned off, any UPS of this design is termed 'offline'. In offline UPS the inverter output is usually a square wave.
In Bangladesh, you can find an offline UPS priced at Taka 2,650, providing 15-25 minutes of backup power for typical PCs and similar devices. For a more dependable power backup solution, online UPS options start at approximately Taka 18,500. Generally, the higher the price, the greater the reliability offered by these units.
The backup runtime of a UPS depends on factors such as the capacity of the battery, the power consumption of connected devices, and the load on the UPS. Typically, UPS systems can provide backup power for a few minutes to several hours, depending on these factors and the specific model of the UPS.
| ONLINE UPS | OFFLINE UPS |
| The UPS that supplies power from the AC mains to the load through the rectifier and inverter combination | The UPS that supply the AC mains power directly to the load. |
| It continuously draws current from the battery. | It only draws current from the battery during primary source failure or power outage. |
| It requires a large battery charger circuit because it carries the entire load current. | It requires a small charger circuit because it only charges the battery. |
| The input supply and the load is completely isolated. | There is no isolation between the input supply and load. |
| It has high-performance output because it protects the output load from input voltage spike and distortion. | Its performance reduces with the input voltage distortion; which is directly connected to the load. |
| There is not switching between the source, hence no time delay | It uses a static transfer switch to switch between its source with a time delay of 5ms |
| It stays ON almost at all times. | It turns ON only at power failure. |
| Due to its continuous ON condition, it is inefficient and unreliable. | It is more efficient and reliable because it mostly stays off. |
| It requires large heat sinks because of the high operating temperature | It requires smaller heat sinks because of low operating temperature due to its off state mostly. |
| The components used must have the tolerance to withstand high temperature | There is no need for the components to have high-temperature tolerance. |
| It is expensive than Offline UPS. | It is cheaper than Online UPS. |
| It is used for very sensitive electronics that cannot tolerate any gap between supplies such as in-hospital ICUs | Offline UPS is used for electronic equipment that can tolerate a delay of 5ms such as Computer etc |
UPS systems offer several advantages:
Potaka IT is one of the best UPS shops in Bangladesh. We have collected a price list with the top UPS available in Bangladesh. You can buy more UPS, motherboards, processors, keyboards, and Mouse from Potaka IT BD at the lowest price in Bangladesh. Our comprehensive price list allows you to choose the best UPS according to your requirements. Since online stores run sales and discounts on an almost regular basis, and not all sites offer the same deals, UPS prices vary from site to site. To help you overcome this problem, we update our UPS prices frequently. This ensures that you are aware of which website is offering you the best deals. Find our regular offers and choose your best UPS.