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 VA Rating Output Voltage Input Voltage Mounting Type Backup Time Number of Outlets Type Current Rating Length Width Depth
RS Stock No. 823-9348
Mfr. Part No.ELP1200IEC
BrandEaton
$593.15
Each
units
Ellipse Pro 750W 1200VA 230V 165 → 285V Rack Mount, Tower 9min 8 Line Interactive 10A 275mm 82mm 390mm
RS Stock No. 665-7854
Mfr. Part No.2866640
$464.05
Each
units
MINI-DC-UPS/24DC/2 - - 24V dc 100 → 350 V dc, 85 → 264 V ac DIN Rail - - Buffer Module 2A 99mm 67.5mm 107mm
RS Stock No. 869-4990
Mfr. Part No.NPW 600
BrandRiello
$204.41
Each
units
Net Power 360W 600VA 230V 220 → 240V ac Desktop - 4 Line Interactive - 142mm 100mm 287mm
RS Stock No. 869-5000
Mfr. Part No.NPW 1500
BrandRiello
$600.72
Each
units
Net Power 900W 1500VA 230V 220 → 240V ac Desktop - 6 Line Interactive - 205mm 146mm 397mm
RS Stock No. 739-7878
Mfr. Part No.2320241
$1,088.43
Each
units
QUINT-UPS/ 24DC/ 24DC/40 - - 24V dc 24V dc DIN Rail - - - - 130mm 47mm 125mm
RS Stock No. 125-3909
Mfr. Part No.9PX2200IRT3U
BrandEaton
$3,057.47
Each
units
- 2.2kW 2200VA 240V 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V Rack Mount, Tower 5 min @ 1800 W 2 (IEC C19), 8 (IEC C13) Online 16A 130mm 440mm 485mm
RS Stock No. 753-1968
Mfr. Part No.UB10.242
BrandPULS
$544.07
Each
units
DIMENSION - - 22.25V 22.5 → 30V dc DIN Rail - - - 10A 124mm 49mm 117mm
RS Stock No. 689-9092
Mfr. Part No.SC450RMI1U
BrandAPC
$619.44
Each
units
Smart-UPS SC 280W 450VA 230V 160 → 286V Rack Mount, Stand Alone - 6 Line Interactive - 44mm 432mm 383mm
RS Stock No. 869-5013
Mfr. Part No.VSD 3000
BrandRiello
$1,894.66
Each
units
Vision Dual 2.7kW 3000VA 220 → 240V ac 220 → 240V ac Rack Mount - 9 Line Interactive - 625mm 87mm 450mm
RS Stock No. 768-8824
Mfr. Part No.SEP 1000
BrandRiello
$1,061.07
Each
units
Sentinal Pro 800W 1000VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - 4 Line Interactive, Online - 235mm 158mm 422mm
RS Stock No. 823-9341
Mfr. Part No.ELP650IEC
BrandEaton
$346.61
Each
units
Ellipse Pro 400W 650VA 230V 165 → 285V Rack Mount, Tower 9min 4 Line Interactive 10A 260mm 82mm 285mm
RS Stock No. 823-9417
Mfr. Part No.5PXEBM72RT3U
BrandEaton
$1,447.44
Each
units
5PX - 3000VA - - Rack Mount 285min - Extended Battery Module - 3U 441mm 497mm
RS Stock No. 768-8843
Mfr. Part No.402012
BrandRiello
$2,107.67
Each
units
Sentinal Pro 2.4kW 3000VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - 9 Line Interactive, Online - 333mm 190mm 446mm
RS Stock No. 665-7914
Mfr. Part No.2866242
$2,591.67
Each
units
QUINT-DC-UPS/24DC/40 - - 24V dc 22.5 → 30V dc DIN Rail - - DC 42.5A 130mm 66mm 125mm
RS Stock No. 823-9354
Mfr. Part No.ELP850FR
BrandEaton
$500.21
Each
units
Ellipse Pro 510W 850VA 230V 165 → 285V Rack Mount, Tower 9min 4 Line Interactive 10A 260mm 82mm 285mm
RS Stock No. 761-7630
Mfr. Part No.2320254
$675.73
Each
units
QUINT-UPS/ 24DC/ 24DC/ 5/1.3AH - - 18 → 30V dc 18 → 30V dc DIN Rail 5min 1 - 9.3A 138mm 88mm 125mm
RS Stock No. 667-5394
Mfr. Part No.PVUA 24/24-10
BrandBlock
$533.87
Each
units
PV 480W - 24V dc 22 → 29V dc DIN Rail - - - 10.8A 127mm 40mm 163mm
RS Stock No. 761-7649
Mfr. Part No.2320267
$741.51
Each
units
QUINT-UPS/ 24DC/ 24DC/10/3.4AH - - 18 → 30V dc 18 → 30V dc DIN Rail 10min 1 - 18.6A 169mm 120mm 125mm
RS Stock No. 739-7869
Mfr. Part No.2320238
$597.02
Each
units
QUINT-UPS/24DC/24DC/20 - - 24V dc 24V dc DIN Rail - - - - 130mm 40mm 125mm
RS Stock No. 779-3816
Mfr. Part No.BR900GI
BrandAPC
$593.86
Each
units
Power-Saving Back-UPS Pro 540W 900VA 230V 230V Stand Alone 5min 10 Line Interactive 8A 100mm 250mm 382mm
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