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. 712-7073
Mfr. Part No.EA-UPS Informer Guard LCD2 1500 AP
£221.21
Each
Units
Guard LCD 2 900W 175 → 300V ac 1500VA 230V Stand Alone 3.5min - - 4 Line Interactive 205mm 146mm 397mm
RS Stock No. 712-7076
Mfr. Part No.EA-UPS Informer Guard LCD2 2000 AP
£263.92
Each
Units
Guard LCD 2 1.2kW 175 → 300V ac 2000VA 230V Stand Alone 3.5min - - 4 Line Interactive 205mm 146mm 397mm
RS Stock No. 459-819
Mfr. Part No.IDG 800/RS
BrandRiello
£77.10
Each
Units
iDialog 480W 220 → 240V ac 800VA 230V Stand Alone - - - 4 Line Interactive, Offline 192mm 90mm 232mm
RS Stock No. 689-9073
Mfr. Part No.BK650EI
BrandAPC
£139.64
Each
Units
Back-UPS CS 400W 180 → 266V 650VA 230V Stand Alone - - 7A 6 Offline 165mm 91mm 284mm
RS Stock No. 869-4993
Mfr. Part No.NPW 800
BrandRiello
£80.82
Each
Units
Net Power 480W 220 → 240V ac 800VA 230V Desktop - - - 4 Line Interactive 142mm 100mm 287mm
RS Stock No. 689-9070
Mfr. Part No.BK500EI
BrandAPC
£119.68
Each
Units
Back-UPS CS 300W 180 → 266V 500VA 230V Stand Alone - - 7A 6 Offline 165mm 91mm 284mm
RS Stock No. 459-815
Mfr. Part No.IDG 600/RS
BrandRiello
£63.10
Each
Units
iDialog 360W 220 → 240V ac 600VA 230V Stand Alone - - - 4 Line Interactive, Offline 192mm 90mm 232mm
RS Stock No. 779-3816
Mfr. Part No.BR900GI
BrandAPC
£219.42
Each
Units
Power-Saving Back-UPS Pro 540W 230V 900VA 230V Stand Alone 5min - 8A 10 Line Interactive 100mm 250mm 382mm
RS Stock No. 714-0161
Mfr. Part No.TS1000B
BrandOPTI
£86.49
Each
Units
Thunder Shield 480W 230V ac 800VA 230V Stand Alone 33min - - 2 Line Interactive 320mm 97mm 135mm
RS Stock No. 739-7869
Mfr. Part No.2320238
£202.60
Each
Units
QUINT-UPS/24DC/24DC/20 - 24V dc - 24V dc DIN Rail - - - - - 130mm 40mm 125mm
RS Stock No. 779-3838
Mfr. Part No.BE400-UK
BrandAPC
£89.76
Each
Units
Back-UPS ES 240W 230V 400VA 230V Wall Mount 5min - - 8 Standby 230mm 86mm 285mm
RS Stock No. 498-7175
Mfr. Part No.IPG 600 UK/RS
BrandRiello
£95.28
Each
Units
iPlug 360W 220 → 240V ac 600VA 230V Stand Alone - - - 8 - 99mm 175mm 313mm
RS Stock No. 665-7918
Mfr. Part No.2866239
£243.12
Each
Units
QUINT-DC-UPS/24DC/20 - 24V dc - 24V dc DIN Rail - - 22A - UPS 130mm 66mm 125mm
RS Stock No. 869-4997
Mfr. Part No.NPW 1000
BrandRiello
£178.04
Each
Units
Net Power 600W 220 → 240V ac 1000VA 230V Desktop - - - 4 Line Interactive 160mm 146mm 350mm
RS Stock No. 768-8767
Mfr. Part No.IDG 1200
BrandRiello
£152.63
Each
Units
iDialog Plus 720W 220 → 240V ac 1200VA 230V Stand Alone - - - 6 Offline 275mm 97mm 315mm
RS Stock No. 665-7854
Mfr. Part No.2866640
£151.73
Each
Units
MINI-DC-UPS/24DC/2 - 100 → 350 V dc, 85 → 264 V ac - 24V dc DIN Rail - - 2A - Buffer Module 99mm 67.5mm 107mm
RS Stock No. 665-7857
Mfr. Part No.2866611
£196.01
Each
Units
TRIO-UPS/1AC/24DC/ 5 - 100 → 350 V dc, 85 → 264 V ac - 24V dc DIN Rail - - 5A - Buffer Module 130mm 60mm 118mm
RS Stock No. 627-6225
Mfr. Part No.UB10.241
BrandPULS
£215.74
Each
Units
DIMENSION 240W 22.5 → 30V dc - 22.4V dc DIN Rail - - 10A - DC 124mm 49mm 117mm
RS Stock No. 459-825
Mfr. Part No.IDG 400/RS
BrandRiello
£61.86
Each
Units
iDialog 240W 220 → 240V ac 400VA 230V Stand Alone - - - 4 Line Interactive, Offline 192mm 90mm 232mm
RS Stock No. 712-7064
Mfr. Part No.EA-UPS Informer Guard LCD2 1000 AP
£165.70
Each
Units
Guard LCD 2 600W 175 → 300V ac 1000VA 230V Stand Alone 4.5min - - - Line Interactive 160mm 146mm 350mm
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Intelligent and efficient network power protection from entry ...
Description:
Intelligent and efficient network power protection from entry level to scaleable runtime. Ideal for servers, point-of-sale, routers, switches, hubs and other network devices. Alpha/numeric LCD Display SmartSlotCold-start capable Serial Connectivity Hot-swappable batteries Battery disconnect Automatic self-test Automatic restart of loads after UPS shutdown Audible alarms.