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. 180-5496
Mfr. Part No.2906996
$784.00
Each
units
QUINT4 240W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 8.3A 35mm 125mm 130mm
RS Stock No. 122-8268
Mfr. Part No.SX31K1CI-FR
BrandAPC
$344.90
Each
units
Back UPS 660W 1100VA - 230V ac Desktop 8ms 4 Line Interactive - 130mm 215mm 336mm
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. 125-3921
Mfr. Part No.9PXEBM72RT2U
BrandEaton
$1,525.60
Each
units
- 2.2 kW, 3 kW 2200 VA, 3000 VA 72V - Rack Mount, Tower - - Online - 86.5mm 440mm 605mm
RS Stock No. 180-5499
Mfr. Part No.2907068
$824.64
Each
units
QUINT4 480W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 16.2A 35mm 125mm 130mm
RS Stock No. 168-2510
Mfr. Part No.2868693
$741.19
Each
units
- - - 15V dc 16.5V dc DIN Rail - - UPS - - 108mm 61mm
RS Stock No. 168-2506
Mfr. Part No.2905909
$2,200.83
Each
units
TRIO-UPS-2G/1AC/1AC/230V/750VA 600W 750VA 230V 264 (Maximum)V ac DIN Rail 1 (600 W) min, 20 (100 W) min, 4 (300 W) min 2 Uninterruptible Power Supply 3A 170mm 210mm 136mm
RS Stock No. 823-9401
Mfr. Part No.5P1550iR
BrandEaton
$1,717.64
Each
units
5P 1.1kW 1550VA 230V 160 → 294V Rack Mount 13min 8 Line Interactive 10A 1U 438mm 554mm
RS Stock No. 180-5492
Mfr. Part No.2906990
$485.49
Each
units
QUINT4-UPS/24DC/24DC/5 240W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 8.3A 35mm 125mm 130mm
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. 180-5489
Mfr. Part No.2907160
$769.74
Each
units
TRIO-UPS-2G/1AC/24DC/5 - - 24V dc 100 → 240V ac DIN Rail - - UPS - 60mm 115mm 130mm
RS Stock No. 823-9366
Mfr. Part No.ELP1600FR
BrandEaton
$757.49
Each
units
Ellipse Pro 1kW 1600VA 230V 165 → 285V Rack Mount, Tower 9min 8 Line Interactive 10A 275mm 82mm 390mm
RS Stock No. 768-8878
Mfr. Part No.SDH 2200 ER
BrandRiello
$2,310.04
Each
units
Sentinel Dual 1.76kW 2200VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - 9 Line Interactive, Online - 87mm 450mm 625mm
RS Stock No. 869-5007
Mfr. Part No.VSD 1100
BrandRiello
$1,121.02
Each
units
Vision Dual 900W 1100VA 220 → 240V ac 220 → 240V ac Rack Mount - 8 Line Interactive - 425mm 87mm 450mm
RS Stock No. 823-9372
Mfr. Part No.ELP1200DIN
BrandEaton
$626.10
Each
units
Ellipse Pro 750W 1200VA 230V 165 → 285V Rack Mount, Tower 9min 8 Line Interactive 10A 275mm 82mm 390mm
RS Stock No. 125-3914
Mfr. Part No.9PX2200IRTN
BrandEaton
$3,565.62
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 86.5mm 440mm 605mm
RS Stock No. 801-6400
Mfr. Part No.2320270
$2,244.98
Each
units
- - - - 230V ac DIN Rail Mount - - Switch Mode - - 125mm 125mm
RS Stock No. 473-1045
Mfr. Part No.6EP1931-2DC21
BrandSiemens
$360.74
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - 6A 125mm 50mm 125mm
RS Stock No. 624-7457
Mfr. Part No.6EP1931-2FC42
BrandSiemens
$900.70
Each
units
SITOP DC 960W - 24V dc 22 → 29V dc DIN Rail - - - 42.6A 125mm 102mm 125mm
RS Stock No. 180-5502
Mfr. Part No.2907071
$628.26
Each
units
QUINT4-UPS/24DC/24DC/20 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - UPS 31.4A 40mm 125mm 130mm
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