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 Network Compatibility Number of Outlets Type Current Rating Length Width Depth
RS Stock No. 768-8828
Mfr. Part No.SEP 1000ER
BrandRiello
TWD20,657.00
Each
units
Sentinal Pro 800W 1000VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 4 Line Interactive, Online - 235mm 158mm 422mm
RS Stock No. 823-9382
Mfr. Part No.5P1150i
BrandEaton
TWD20,060.00
Each
units
5P 770W 1150VA 230V 160 → 294V Tower 12min - 8 Line Interactive 10A 230mm 150mm 345mm
RS Stock No. 869-4997
Mfr. Part No.NPW 1000
BrandRiello
TWD8,006.00
Each
units
Net Power 600W 1000VA 230V 220 → 240V ac Desktop - - 4 Line Interactive - 160mm 146mm 350mm
RS Stock No. 459-815
Mfr. Part No.IDG 600/RS
BrandRiello
TWD2,837.00
Each
units
IDialog 360W 600VA 230V 220 → 240V ac Stand Alone - - 4 Line Interactive, Offline - 192mm 90mm 232mm
RS Stock No. 823-8985
Mfr. Part No.DS3000I
BrandOPTI
TWD29,277.00
Each
units
Durable 2.7kW 3000VA 220 → 240V ac 176 → 288V ac Stand Alone 6min - 4, 8 Online - 336mm 190mm 426mm
RS Stock No. 823-9417
Mfr. Part No.5PXEBM72RT3U
BrandEaton
TWD27,331.00
Each
units
5PX - 3000VA - - Rack Mount 285min - - Extended Battery Module - 3U 441mm 497mm
RS Stock No. 665-7914
Mfr. Part No.2866242
TWD19,955.00
Each
units
QUINT-DC-UPS/24DC/40 - - 24V dc 22.5 → 30V dc DIN Rail - - - DC 42.5A 130mm 66mm 125mm
RS Stock No. 768-8824
Mfr. Part No.SEP 1000
BrandRiello
TWD19,630.00
Each
units
Sentinal Pro 800W 1000VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 4 Line Interactive, Online - 235mm 158mm 422mm
RS Stock No. 823-9411
Mfr. Part No.5PXEBM72RT2U
BrandEaton
TWD34,607.00
Each
units
5PX - 3000VA - - Rack Mount 285min - - Extended Battery Module - 2U 441mm 647mm
RS Stock No. 823-8994
Mfr. Part No.DS3000IL
BrandOPTI
TWD29,788.00
Each
units
Durable 2.7kW 3000VA 220 → 240V ac 176 → 288V ac Stand Alone 6min - 4, 8 Online - 336mm 190mm 426mm
RS Stock No. 823-9350
Mfr. Part No.ELP650FR
BrandEaton
TWD6,783.00
Each
units
Ellipse Pro 400W 650VA 230V 165 → 285V Rack Mount, Tower 9min - 4 Line Interactive 10A 260mm 82mm 285mm
RS Stock No. 665-7918
Mfr. Part No.2866239
TWD10,932.00
Each
units
QUINT-DC-UPS/24DC/20 - - 24V dc 24V dc DIN Rail - - - UPS 22A 130mm 66mm 125mm
RS Stock No. 627-6225
Mfr. Part No.UB10.241
BrandPULS
TWD9,701.00
Each
units
DIMENSION 240W - 22.4V dc 22.5 → 30V dc DIN Rail - - - DC 10A 124mm 49mm 117mm
RS Stock No. 801-6400
Mfr. Part No.2320270
TWD39,970.00
Each
units
- - - - 230V ac DIN Rail Mount - - - Switch Mode - - 125mm 125mm
RS Stock No. 768-8821
Mfr. Part No.SEP 700
BrandRiello
TWD19,815.00
Each
units
Sentinal Pro 560W 700VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 4 Line Interactive, Online - 235mm 158mm 422mm
RS Stock No. 499-9601
Mfr. Part No.6EP1931-2FC21
BrandSiemens
TWD14,892.00
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 40A 125mm 102mm 125mm
RS Stock No. 768-8837
Mfr. Part No.SEP 1500
BrandRiello
TWD24,377.00
Each
units
Sentinal Pro 1.2kW 1500VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 4 Line Interactive, Online - 235mm 158mm 422mm
RS Stock No. 473-1045
Mfr. Part No.6EP1931-2DC21
BrandSiemens
TWD7,060.00
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 6A 125mm 50mm 125mm
RS Stock No. 823-9344
Mfr. Part No.ELP850IEC
BrandEaton
TWD9,790.00
Each
units
Ellipse Pro 510W 850VA 230V 165 → 285V Rack Mount, Tower 9min - 4 Line Interactive 10A 260mm 82mm 285mm
RS Stock No. 180-5500
Mfr. Part No.2907069
TWD14,556.00
Each
units
QUINT4 480W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 16.2A 35mm 125mm 130mm