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. 125-3920
Mfr. Part No.9PX3000IRTN
BrandEaton
$5,086.84
Each
units
- 3kW 3000VA 240V 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V Rack Mount, Tower 4 min @ 2500 W 2 (IEC C19), 8 (IEC C13) Online 16A 86.5mm 440mm 605mm
RS Stock No. 823-9411
Mfr. Part No.5PXEBM72RT2U
BrandEaton
$1,922.10
Each
units
5PX - 3000VA - - Rack Mount 285min - Extended Battery Module - 2U 441mm 647mm
RS Stock No. 668-0545
Mfr. Part No.6EP1933-2NC01
BrandSiemens
$1,444.84
Each
units
SITOP UPS500P 168W - 23.3 → 24.7V dc 22.5 → 29V dc DIN Rail - 1 Switch Mode 7A 80mm 400mm 80mm
RS Stock No. 768-8834
Mfr. Part No.SEP 2200ER
BrandRiello
$1,709.76
Each
units
Sentinal Pro 1.76kW 2200VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - 8 Line Interactive, Online - 333mm 190mm 446mm
RS Stock No. 180-5490
Mfr. Part No.2907161
$987.21
Each
units
TRIO-UPS-2G/1AC/24DC/10 - - 24V dc 100 → 240V ac DIN Rail - - UPS - 68mm 160mm 130mm
RS Stock No. 180-5500
Mfr. Part No.2907069
$824.64
Each
units
QUINT4 480W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 16.2A 35mm 125mm 130mm
RS Stock No. 180-5497
Mfr. Part No.2907066
$536.80
Each
units
QUINT4 480W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 16.2A 35mm 125mm 130mm
RS Stock No. 180-5494
Mfr. Part No.2906993
$773.33
Each
units
QUINT4 240W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 8.3A 35mm 125mm 130mm
RS Stock No. 869-5016
Mfr. Part No.VSD 1500
BrandRiello
$1,206.29
Each
units
Vision Dual 1.35kW 1500VA 220 → 240V ac 220 → 240V ac Rack Mount - 8 Line Interactive - 425mm 87mm 450mm
RS Stock No. 180-5510
Mfr. Part No.2907080
$1,390.30
Each
units
QUINT4 1.44kW - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 51.2A 47mm 125mm 130mm
RS Stock No. 180-5508
Mfr. Part No.2907078
$1,155.75
Each
units
QUINT4 1.44kW - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 51.2A 47mm 125mm 130mm
RS Stock No. 180-5505
Mfr. Part No.2907074
$916.08
Each
units
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 31.4A 40mm 125mm 130mm
RS Stock No. 125-3918
Mfr. Part No.9PX3000IRTBPH
BrandEaton
$3,884.63
Each
units
- 3kW 3000VA 240V 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V Rack Mount, Tower 4 min @ 2500 W 2 (IEC C19), 8 (IEC C13) Online 16A 130mm 440mm 485mm
RS Stock No. 823-9394
Mfr. Part No.5P650iR
BrandEaton
$769.02
Each
units
5P 420W 650VA 230V 160 → 294V Rack Mount 9min 8 Line Interactive 10A 1U 438mm 364mm
RS Stock No. 823-9408
Mfr. Part No.5P1150iR
BrandEaton
$1,328.44
Each
units
5P 770W 1150VA 230V 160 → 294V Rack Mount 12min 8 Line Interactive 10A 1U 438mm 509mm
RS Stock No. 823-8975
Mfr. Part No.DS1000I
BrandOPTI
$805.83
Each
units
Durable 900W 1000VA 220 → 240V ac 176 → 288V ac Stand Alone 6min 4 Online - 222mm 144mm 353mm
RS Stock No. 473-1039
Mfr. Part No.6EP1931-2DC31
BrandSiemens
$464.14
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - 6A 125mm 50mm 125mm
RS Stock No. 751-2601
Mfr. Part No.2320335
$1,337.33
Each
units
UPS-BAT/VRLA/24DC/38AH - - - 24V dc - - - - 50A 210mm 330mm 197mm
RS Stock No. 473-1017
Mfr. Part No.6EP1931-2EC21
BrandSiemens
$438.95
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - 15A 125mm 50mm 125mm
RS Stock No. 689-9070
Mfr. Part No.BK500EI
BrandAPC
$323.17
Each
units
Back-UPS CS 300W 500VA 230V 180 → 266V Stand Alone - 6 Offline 7A 165mm 91mm 284mm
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