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
TWD20,694.00
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. 665-7918
Mfr. Part No.2866239
TWD24,621.00
Each
units
QUINT-DC-UPS/24DC/20 - - 24V dc 24V dc DIN Rail - - - UPS 22A 130mm 66mm 125mm
RS Stock No. 499-9601
Mfr. Part No.6EP1931-2FC21
BrandSiemens
TWD14,459.00
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 40A 125mm 102mm 125mm
RS Stock No. 627-6225
Mfr. Part No.UB10.241
BrandPULS
TWD9,719.00
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
TWD35,292.00
Each
units
- - - - 230V ac DIN Rail Mount - - - Switch Mode - - 125mm 125mm
RS Stock No. 739-7878
Mfr. Part No.2320241
TWD31,878.00
Each
units
QUINT-UPS/ 24DC/ 24DC/40 - - 24V dc 24V dc DIN Rail - - - - - 130mm 47mm 125mm
RS Stock No. 624-7479
Mfr. Part No.6EP1931-2EC42
BrandSiemens
TWD9,338.00
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 15A 125mm 50mm 125mm
RS Stock No. 768-8878
Mfr. Part No.SDH 2200 ER
BrandRiello
TWD42,417.00
Each
units
Sentinel Dual 1.76kW 2200VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 9 Line Interactive, Online - 87mm 450mm 625mm
RS Stock No. 180-5489
Mfr. Part No.2907160
TWD13,938.00
Each
units
TRIO-UPS-2G/1AC/24DC/5 - - 24V dc 100 → 240V ac DIN Rail - - - UPS - 60mm 115mm 130mm
RS Stock No. 180-5505
Mfr. Part No.2907074
TWD18,992.00
Each
units
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 31.4A 40mm 125mm 130mm
RS Stock No. 668-0545
Mfr. Part No.6EP1933-2NC01
BrandSiemens
TWD26,692.00
Each
units
SITOP UPS500P 168W - 23.3 → 24.7V dc 22.5 → 29V dc DIN Rail - - 1 Switch Mode 7A 80mm 400mm 80mm
RS Stock No. 146-8164
Mfr. Part No.AR2480
BrandAPC
TWD62,522.00
Each
units
NetShelter - - - - Wall Mount - - - - - 800mm 1.06m 2.057m
RS Stock No. 739-7869
Mfr. Part No.2320238
TWD7,762.00
Each
units
QUINT-UPS/24DC/24DC/20 - - 24V dc 24V dc DIN Rail - - - - - 130mm 40mm 125mm
RS Stock No. 180-5503
Mfr. Part No.2907072
TWD13,706.00
Each
units
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 31.4A 40mm 125mm 130mm
RS Stock No. 146-8168
Mfr. Part No.SBP5000RMI2U
BrandAPC
TWD21,618.00
Each
units
PQUA-8ASKY4 - 7680VA 230V 230V Rack Mount - - - UPS 32A 432mm 660mm 89mm
RS Stock No. 768-8846
Mfr. Part No.SEP 3000ER
BrandRiello
TWD36,761.00
Each
units
Sentinal Pro 2.4kW 3000VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 9 Line Interactive, Online - 333mm 190mm 446mm
RS Stock No. 146-8165
Mfr. Part No.AR3150
BrandAPC
TWD53,627.00
Each
units
NetShelter - - - - Rack Mount - - - - - 750mm 1.07m 1.991m
RS Stock No. 180-5509
Mfr. Part No.2907079
TWD28,358.00
Each
units
QUINT4 1.44kW - 18 → 32V dc 18 → 30V dc DIN Rail - PROFINET - UPS 51.2A 47mm 125mm 130mm
RS Stock No. 180-5497
Mfr. Part No.2907066
TWD11,366.00
Each
units
QUINT4 480W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 16.2A 35mm 125mm 130mm
RS Stock No. 505-5421
Mfr. Part No.2866213
TWD17,240.00
Each
units
QUINT-BUFFER/24DC/20 - - 24V dc 24V dc DIN Rail - - - DC 20.6A 130mm 64mm 125mm