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. 627-6225
Mfr. Part No.UB10.241
BrandPULS
MYR1,439.05
Each
units
DIMENSION 240W - 22.4V dc 22.5 → 30V dc DIN Rail - - - DC 10A 124mm 49mm 117mm
RS Stock No. 473-1017
Mfr. Part No.6EP1931-2EC21
BrandSiemens
MYR1,174.69
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 15A 125mm 50mm 125mm
RS Stock No. 665-7854
Mfr. Part No.2866640
MYR2,058.56
Each
units
MINI-DC-UPS/24DC/2 - - 24V dc 85 → 264 V ac, 100 → 350 V dc DIN Rail - - - Buffer Module 2A 99mm 67.5mm 107mm
RS Stock No. 665-7857
Mfr. Part No.2866611
MYR2,172.17
Each
units
TRIO-UPS/1AC/24DC/ 5 - - 24V dc 85 → 264 V ac, 100 → 350 V dc DIN Rail - - - Buffer Module 5A 130mm 60mm 118mm
RS Stock No. 499-9601
Mfr. Part No.6EP1931-2FC21
BrandSiemens
MYR1,789.21
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 40A 125mm 102mm 125mm
RS Stock No. 753-1977
Mfr. Part No.UB10.245
BrandPULS
MYR1,949.66
Each
units
DIMENSION 360W - 12 → 22V dc 22.5 → 30V dc DIN Rail - - 2 - 10A 124mm 49mm 117mm
RS Stock No. 739-7865
Mfr. Part No.2320225
MYR1,807.10
Each
units
QUINT-UPS/ 24DC/ 24DC/10 - - 24V dc 24V dc DIN Rail - - - - - 130mm 35mm 125mm
RS Stock No. 665-7914
Mfr. Part No.2866242
MYR6,495.96
Each
units
QUINT-DC-UPS/24DC/40 - - 24V dc 22.5 → 30V dc DIN Rail - - - DC 42.5A 130mm 66mm 125mm
RS Stock No. 739-7878
Mfr. Part No.2320241
MYR3,997.90
Each
units
QUINT-UPS/ 24DC/ 24DC/40 - - 24V dc 24V dc DIN Rail - - - - - 130mm 47mm 125mm
RS Stock No. 473-1001
Mfr. Part No.6EP1931-2EC31
BrandSiemens
MYR1,327.24
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 15A 125mm 50mm 125mm
RS Stock No. 668-0532
Mfr. Part No.6EP1933-2EC51
BrandSiemens
MYR2,349.98
Each
units
SITOP UPS500S 360W - 24V dc 22 → 29V dc DIN Rail - - 1 Switch Mode 15.2A 125mm 120mm 125mm
RS Stock No. 801-6400
Mfr. Part No.2320270
MYR5,035.43
Each
units
- - - - 230V ac DIN Rail Mount - - - Switch Mode - - 125mm 125mm
RS Stock No. 739-7869
Mfr. Part No.2320238
MYR1,365.28
Each
units
QUINT-UPS/24DC/24DC/20 - - 24V dc 24V dc DIN Rail - - - - - 130mm 40mm 125mm
RS Stock No. 473-1039
Mfr. Part No.6EP1931-2DC31
BrandSiemens
MYR1,127.87
Each
units
SITOP DC - - 21.5 → 28.5V dc 22 → 29V dc DIN Rail - - - - 6A 125mm 50mm 125mm
RS Stock No. 665-7918
Mfr. Part No.2866239
MYR3,242.24
Each
units
QUINT-DC-UPS/24DC/20 - - 24V dc 24V dc DIN Rail - - - UPS 22A 130mm 66mm 125mm
RS Stock No. 505-5421
Mfr. Part No.2866213
MYR2,051.02
Each
units
QUINT-BUFFER/24DC/20 - - 24V dc 24V dc DIN Rail - - - DC 20.6A 130mm 64mm 125mm
RS Stock No. 188-0196
Mfr. Part No.SMT750RMI2UC
BrandAPC
MYR2,828.71
Each
units
Smart-UPS SMT 500W 750VA 230V 160 → 286V Rack Mount - - 1 Line Interactive - 432mm 409mm 86mm
RS Stock No. 779-3759
Mfr. Part No.SUA5000RMI5U
BrandAPC
MYR18,961.13
Each
units
Smart-UPS 4kW 5000VA 230V 230V Rack Mount 9min - 14 Line Interactive - 483mm 222mm 660mm
RS Stock No. 668-0545
Mfr. Part No.6EP1933-2NC01
BrandSiemens
MYR3,793.74
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. 751-2601
Mfr. Part No.2320335
MYR3,544.90
Each
units
UPS-BAT/VRLA/24DC/38AH - - - 24V dc - - - - - 50A 210mm 330mm 197mm