UPS Uninterruptible Power Supplies

An uninterruptible power supply, commonly known as "UPS Power Supply" is a device that is designed to supply power to your computers, servers and data centres in case of main power failure, electrical surge or unexpected power cut off. These devices contain a battery that guarantees power to your computer system for a certain period of time, creating a time period long enough for saving the current task and shutting off the computer. For further reading, see our complete guide to uninterruptible power supplies (UPS).




UPS Uninterruptible Power Supply Types?


There are several types of UPS systems available on the market:


  • Online UPS - A system of supplying power by converting AC input (utility power) to DC and reconverting it to stable AC by the inverter while constantly charging the batteries. Supplies power without momentary power breaks in the event of a power outage.

  • Standby UPS - A system where, normally AC input (utility power) is output as is to connected devices and when a power outage or abnormal voltage is detected, inverter starts feeding using power from the batteries. In the event of a power outage, a few milliseconds of momentary break occurs in AC output.

  • Parallel processing UPS - While power from AC input (utility power) is supplied, the bidirectional inverter connected in parallel corrects voltage and absorbs noise. Because this is the online inverter (parallel) system, it has both high efficiency and high reliability.

  • Hybrid UPS - This system consists of three modes: double conversion mode, economy mode, and active filter mode. The UPS automatically selects the power feeding mode to best suit the power situation and load conditions. It is possible to shift between the respective modes with no momentary break in output voltage. Double conversion mode is selected when the power situation is poor and economy mode is selected when the power situation is good.


How to choose the right UPS device


A UPS power supply may vary in the backup time, size, numbers and type of communication ports. Some more expensive models are equipped with an intelligent system that automatically shut down connected devices to ensure that no data is lost and the device shutdown is safe. All of these aspects need to be considered before making the final decision on buying one model or another.


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Description Price Model Power Rating Input Voltage Output Voltage VA Rating Backup Time Mounting Type Communications Current Rating Number of Outlets Type Length Width Depth
RS Stock No. 823-9348
Mfr. Part No.ELP1200IEC
BrandEaton
$466.92
Each
units
Ellipse Pro 750W 165 → 285V 230V 1200VA 9min Rack Mount, Tower USB 10A 8 Line Interactive 275mm 82mm 390mm
RS Stock No. 473-1001
Mfr. Part No.6EP1931-2EC31
BrandSiemens
$389.62
Each
units
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - DIN Rail Serial Port, USB 15A - - 125mm 50mm 125mm
RS Stock No. 689-9092
Mfr. Part No.SC450RMI1U
BrandAPC
$558.05
Each
units
Smart-UPS SC 280W 160 → 286V 230V 450VA - Rack Mount, Stand Alone RJ11, RJ45, Serial Port - 6 Line Interactive 44mm 432mm 383mm
RS Stock No. 823-9350
Mfr. Part No.ELP650FR
BrandEaton
$287.55
Each
units
Ellipse Pro 400W 165 → 285V 230V 650VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 779-3819
Mfr. Part No.SC420I
BrandAPC
$388.18
Each
units
Smart-UPS SC 260W 230V 230V 420VA 5min Stand Alone DB9, RS232 - 6 Line Interactive 119mm 168mm 368mm
RS Stock No. 125-3919
Mfr. Part No.9PX3000IRTBP
BrandEaton
$4,343.04
Each
units
- 3kW 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V 240V 3000VA 4 min @ 2500 W Rack Mount, Tower Mini Terminal Block, RS-232, USB 16A 2 (IEC C19), 8 (IEC C13) Online 130mm 440mm 485mm
RS Stock No. 768-8824
Mfr. Part No.SEP 1000
BrandRiello
$955.92
Each
units
Sentinal Pro 800W 220 V ac, 230 V ac, 240 V ac - 1000VA - Stand Alone Serial Port, USB - 4 Line Interactive, Online 235mm 158mm 422mm
RS Stock No. 624-7479
Mfr. Part No.6EP1931-2EC42
BrandSiemens
$389.62
Each
units
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - - Serial Port, USB 15A - - 125mm 50mm 125mm
RS Stock No. 768-8828
Mfr. Part No.SEP 1000ER
BrandRiello
$932.37
Each
units
Sentinal Pro 800W 220 V ac, 230 V ac, 240 V ac - 1000VA - Stand Alone Serial Port, USB - 4 Line Interactive, Online 235mm 158mm 422mm
RS Stock No. 823-9382
Mfr. Part No.5P1150i
BrandEaton
$965.90
Each
units
5P 770W 160 → 294V 230V 1150VA 12min Tower RS232, USB 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 125-3921
Mfr. Part No.9PXEBM72RT2U
BrandEaton
$1,507.51
Each
units
- 2.2 kW, 3 kW - 72V 2200 VA, 3000 VA - Rack Mount, Tower Mini Terminal Block, RS-232, USB - - Online 86.5mm 440mm 605mm
RS Stock No. 473-1039
Mfr. Part No.6EP1931-2DC31
BrandSiemens
$330.91
Each
units
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - DIN Rail Serial Port, USB 6A - - 125mm 50mm 125mm
RS Stock No. 823-9414
Mfr. Part No.5PX2200iRTN
BrandEaton
$1,970.73
Each
units
5PX 1.98kW 160 → 294V 230V 2200VA 15min Rack Mount, Tower RS232, USB 16A 9 Line Interactive 2U 441mm 522mm
RS Stock No. 768-8830
Mfr. Part No.SEP 2200
BrandRiello
$1,669.00
Each
units
Sentinal Pro 1.76kW 220 V ac, 230 V ac, 240 V ac - 2200VA - Stand Alone Serial Port, USB - 8 Line Interactive, Online 333mm 190mm 446mm
RS Stock No. 823-9379
Mfr. Part No.ELP850DIN
BrandEaton
$382.50
Each
units
Ellipse Pro 510W 165 → 285V 230V 850VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 823-9385
Mfr. Part No.5P650i
BrandEaton
$574.37
Each
units
5P 420W 160 → 294V 230V 650VA 9min Tower RS232, USB 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 823-8994
Mfr. Part No.DS3000IL
BrandOPTI
$1,490.51
Each
units
Durable 2.7kW 176 → 288V ac 220 → 240V ac 3000VA 6min Stand Alone RS232, USB - 4, 8 Online 336mm 190mm 426mm
RS Stock No. 823-9388
Mfr. Part No.5P850i
BrandEaton
$660.89
Each
units
5P 600W 160 → 294V 230V 850VA 12min Tower RS232, USB 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 768-8846
Mfr. Part No.SEP 3000ER
BrandRiello
$1,898.80
Each
units
Sentinal Pro 2.4kW 220 V ac, 230 V ac, 240 V ac - 3000VA - Stand Alone Serial Port, USB - 9 Line Interactive, Online 333mm 190mm 446mm
RS Stock No. 768-8837
Mfr. Part No.SEP 1500
BrandRiello
$1,135.32
Each
units
Sentinal Pro 1.2kW 220 V ac, 230 V ac, 240 V ac - 1500VA - Stand Alone Serial Port, USB - 4 Line Interactive, Online 235mm 158mm 422mm
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