UPS Uninterruptible Power Supplies

An uninterruptible power supply, commonly known as UPS Power Supply is easy to install a device that is designed to provide power to your computers, servers, server rooms and data centres in case of main energy failure, electrical surge or unexpected energy cut off. These devices contain a battery that guarantees power to your computer system for a certain period of time, creating an extended run long enough to shutdown software or 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 system solutions available:

  • 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.


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Description Price Model Power Rating Input Voltage VA Rating Output Voltage Mounting Type Backup Time Network Compatibility Current Rating Number of Outlets Type Length Width Depth
RS Stock No. 768-8828
Mfr. Part No.SEP 1000ER
BrandRiello
£459.37
Each
Units
Sentinal Pro 800W 220 V ac, 230 V ac, 240 V ac 1000VA - Stand Alone - - - 4 Line Interactive, Online 235mm 158mm 422mm
RS Stock No. 779-3768
Mfr. Part No.SMX3000RMHV2U
BrandAPC
£2,002.29
Each
Units
Smart-UPS X 2.7kW 230V 3000VA 230V Rack Mount 6min - - 11 Line Interactive 432mm 85mm 667mm
RS Stock No. 715-8822
Mfr. Part No.SMX1500RMI2U
BrandAPC
£1,041.19
Each
Units
Smart-UPS X 1.2kW 160 → 286V 1500VA 230V Rack Mount, Stand Alone 8min - - 8 Line Interactive 89mm 432mm 490mm
RS Stock No. 823-9379
Mfr. Part No.ELP850DIN
BrandEaton
£222.41
Each
Units
Eaton Ellipse PRO 510W 165 → 285V 850VA 230V Rack Mount, Tower 9min - 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 739-7878
Mfr. Part No.2320241
£380.89
Each
Units
QUINT-UPS/ 24DC/ 24DC/40 - 24V dc - 24V dc DIN Rail - - - - - 130mm 47mm 125mm
RS Stock No. 823-9408
Mfr. Part No.5P1150iR
BrandEaton
£641.76
Each
Units
Eaton 5P 770W 160 → 294V 1150VA 230V Rack Mount 12min - 10A 8 Line Interactive 1U 438mm 509mm
RS Stock No. 823-9414
Mfr. Part No.5PX2200iRTN
BrandEaton
£1,353.27
Each
Units
Eaton 5PX 1.98kW 160 → 294V 2200VA 230V Rack Mount, Tower 15min - 16A 9 Line Interactive 2U 441mm 522mm
RS Stock No. 407-903
Mfr. Part No.INF C 1000
£326.27
Each
Units
Informer Compact 600W 165 → 275V ac 1000VA 230V Stand Alone 4min - - 5 Line Interactive 247mm 175mm 370mm
RS Stock No. 122-8262
Mfr. Part No.SR11KXIET
BrandAPC
£882.93
Each
Units
Smart UPS 700W 160 → 280V ac 1000VA 220 → 240V ac Desktop - - - 6 Online 85mm 432mm 483mm
RS Stock No. 768-8749
Mfr. Part No.IPLUG 60
BrandRiello
£95.30
Each
Units
iPlug 360W 220 → 240V ac 600VA 230V Stand Alone - - - 8 Offline 99mm 175mm 213mm
RS Stock No. 779-3762
Mfr. Part No.SMX2200RMHV2U
BrandAPC
£1,678.80
Each
Units
Smart-UPS X 1.98kW 230V 2200VA 230V Rack Mount 10min - - 11 Line Interactive 432mm 85mm 667mm
RS Stock No. 751-2601
Mfr. Part No.2320335
£481.79
Each
Units
UPS-BAT/VRLA/24DC/38AH - 24V dc - - - - - 50A - - 210mm 330mm 197mm
RS Stock No. 869-5007
Mfr. Part No.VSD 1100
BrandRiello
£487.89
Each
Units
Vision Dual 900W 220 → 240V ac 1100VA 220 → 240V ac Rack Mount - - - 8 Line Interactive 425mm 87mm 450mm
RS Stock No. 823-9363
Mfr. Part No.ELP1200FR
BrandEaton
£283.97
Each
Units
Eaton Ellipse PRO 750W 165 → 285V 1200VA 230V Rack Mount, Tower 9min - 10A 8 Line Interactive 275mm 82mm 390mm
RS Stock No. 125-3910
Mfr. Part No.9PX2200IRT2U
BrandEaton
£1,519.31
Each
Units
Eaton 9PX 2.2kW 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V 2200VA 240V Rack Mount, Tower 5 min @ 1800 W - 16A 2 (IEC C19), 8 (IEC C13) Online 86.5mm 440mm 605mm
RS Stock No. 624-7457
Mfr. Part No.6EP1931-2FC42
BrandSiemens
£404.00
Each
Units
SITOP DC 960W 22 → 29V dc - 24V dc DIN Rail - - 42.6A - - 125mm 102mm 125mm
RS Stock No. 823-8975
Mfr. Part No.DS1000I
BrandOPTI
£350.71
Each
Units
Durable 900W 176 → 288V ac 1000VA 220 → 240V ac Stand Alone 6min - - 4 Online 222mm 144mm 353mm
RS Stock No. 715-8828
Mfr. Part No.SMX1000I
BrandAPC
£690.11
Each
Units
Smart-UPS X 800W 160 → 286V 1000VA 230V Rack Mount, Stand Alone 5min - - 8 Line Interactive 89mm 432mm 490mm
RS Stock No. 823-8981
Mfr. Part No.DS2000IL
BrandOPTI
£563.40
Each
Units
Durable 1.8kW 176 → 288V ac 2000VA 220 → 240V ac Stand Alone 6min - - 4, 8 Online 336mm 190mm 374mm
RS Stock No. 823-9398
Mfr. Part No.5P850iR
BrandEaton
£474.35
Each
Units
Eaton 5P 600W 160 → 294V 850VA 230V Rack Mount 12min - 10A 8 Line Interactive 1U 438mm 509mm