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. 745-1880
Mfr. Part No.EL1200USBIEC
BrandEaton
£234.16
Each
Units
Ellipse ECO 750W 161 → 284V 1200VA 230V Rack Mount, Stand Alone - - - 8 Offline 305mm 81mm 312mm
RS Stock No. 823-9357
Mfr. Part No.ELP1600IEC
BrandEaton
£329.67
Each
Units
Ellipse Pro 1kW 165 → 285V 1600VA 230V Rack Mount, Tower 9min - 10A 8 Line Interactive 275mm 82mm 390mm
RS Stock No. 745-1887
Mfr. Part No.EL800USBIEC
BrandEaton
£158.89
Each
Units
Ellipse ECO 500W 161 → 284V 800VA 230V Rack Mount, Stand Alone - - - 4 Offline 263mm 81mm 235mm
RS Stock No. 745-1884
Mfr. Part No.EL1600USBIEC
BrandEaton
£294.79
Each
Units
Ellipse ECO 1kW 161 → 284V 1600VA 230V Rack Mount, Stand Alone - - - 8 Offline 305mm 81mm 312mm
RS Stock No. 823-9417
Mfr. Part No.5PXEBM72RT3U
BrandEaton
£488.54
Each
Units
5PX - - 3000VA - Rack Mount 285min - - - Extended Battery Module 3U 441mm 497mm
RS Stock No. 745-1871
Mfr. Part No.EL500IEC
BrandEaton
£104.50
Each
Units
- 300W 161 → 284V 500VA 230V Rack Mount, Stand Alone - - - 4 Offline 263mm 81mm 235mm
RS Stock No. 745-1878
Mfr. Part No.EL650USBIEC
BrandEaton
£130.68
Each
Units
Ellipse ECO 400W 161 → 284V 650VA 230V Rack Mount, Stand Alone - - - 4 Offline 263mm 81mm 235mm
RS Stock No. 823-9411
Mfr. Part No.5PXEBM72RT2U
BrandEaton
£769.61
Each
Units
5PX - - 3000VA - Rack Mount 285min - - - Extended Battery Module 2U 441mm 647mm
RS Stock No. 823-9376
Mfr. Part No.ELP1600DIN
BrandEaton
£309.03
Each
Units
Ellipse Pro 1kW 165 → 285V 1600VA 230V Rack Mount, Tower 9min - 10A 8 Line Interactive 275mm 82mm 390mm
RS Stock No. 745-1919
Mfr. Part No.5PX3000iRTN
BrandEaton
£1,607.89
Each
Units
5PX 2.7kW 150 → 294V 3000VA 230V Rack Mount, Stand Alone 9min - - 9 Line Interactive 86.2mm 441mm 647mm
RS Stock No. 823-9344
Mfr. Part No.ELP850IEC
BrandEaton
£217.70
Each
Units
Ellipse Pro 510W 165 → 285V 850VA 230V Rack Mount, Tower 9min - 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 745-1903
Mfr. Part No.5PX2200iRT
BrandEaton
£1,080.19
Each
Units
5PX 1.98kW 150 → 294V 2200VA 230V Rack Mount, Stand Alone 8min - - 9 Line Interactive 86.2mm 441mm 522mm
RS Stock No. 823-9348
Mfr. Part No.ELP1200IEC
BrandEaton
£258.15
Each
Units
Ellipse Pro 750W 165 → 285V 1200VA 230V Rack Mount, Tower 9min - 10A 8 Line Interactive 275mm 82mm 390mm
RS Stock No. 823-9341
Mfr. Part No.ELP650IEC
BrandEaton
£150.85
Each
Units
Ellipse Pro 400W 165 → 285V 650VA 230V Rack Mount, Tower 9min - 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 823-9382
Mfr. Part No.5P1150i
BrandEaton
£446.11
Each
Units
5P 770W 160 → 294V 1150VA 230V Tower 12min - 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 125-3922
Mfr. Part No.9PXEBM72RT3U
BrandEaton
£787.95
Each
Units
9PX 2.2 kW, 3 kW - 2200 VA, 3000 VA 72V Rack Mount, Tower - - - - Online 130mm 440mm 485mm
RS Stock No. 823-9394
Mfr. Part No.5P650iR
BrandEaton
£323.82
Each
Units
5P 420W 160 → 294V 650VA 230V Rack Mount 9min - 10A 8 Line Interactive 1U 438mm 364mm
RS Stock No. 823-9388
Mfr. Part No.5P850i
BrandEaton
£305.75
Each
Units
5P 600W 160 → 294V 850VA 230V Tower 12min - 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 823-9350
Mfr. Part No.ELP650FR
BrandEaton
£150.85
Each
Units
Ellipse Pro 400W 165 → 285V 650VA 230V Rack Mount, Tower 9min - 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 745-1874
Mfr. Part No.EL650IEC
BrandEaton
£113.92
Each
Units
Ellipse ECO 400W 161 → 284V 650VA 230V Rack Mount, Stand Alone - - - 4 Offline 263mm 81mm 235mm