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. 201-0846
Mfr. Part No.SMC1500I-2UC
BrandAPC
£675.33
Each
Units
Smart-UPS 900W 230V 1500VA 230V - - - 6.5A - - - - -
RS Stock No. 188-0189
Mfr. Part No.SMT2200RMI2UC
BrandAPC
£1,286.31
Each
Units
Smart-UPS SMT 1.98kW 160 → 286V 2200VA 230V Rack Mount - - - 1 Line Interactive 480mm 683mm 86mm
RS Stock No. 201-9771
Mfr. Part No.9PX1000IRTN
BrandEaton
£1,215.40
Each
Units
Eaton 9PX 1kW 176 → 276V ac 1000VA 230V ac - - - - - - - - -
RS Stock No. 201-0845
Mfr. Part No.SMC1000I-2UC
BrandAPC
£566.36
Each
Units
Smart-UPS 600W 230V 1000VA 230V - - - 4.3A - - - - -
RS Stock No. 201-9770
Mfr. Part No.9PX1500IRT2U
BrandEaton
£1,358.05
Each
Units
Eaton 9PX 1.5kW 176 → 276V ac 1500VA 230V ac Rack Mount, Tower - - - 8 (IEC C13) Online 86.5mm 440mm 450mm
New
RS Stock No. 206-4747
Mfr. Part No.9SXEBM96T
BrandEaton
£719.89
Each
Units
Eaton 9SX 1.8kW 190 → 276V 2000 VA, 3000VA 230V - - - 10A - - - - -
RS Stock No. 201-9768
Mfr. Part No.9PX1500IRTN
BrandEaton
£1,593.43
Each
Units
Eaton 9PX 1.5kW 176 → 276V ac 1500VA 230V ac - - - - - - - - -
RS Stock No. 201-9767
Mfr. Part No.9SX1000I
BrandEaton
£701.85
Each
Units
Eaton 9SX 900W 190 → 276V ac 1000VA 230V ac Tower 6min - - 6 (C13) - 252mm 160mm 387mm