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 Number of Outlets Type Current Rating Length Width Depth
RS Stock No. 739-7865
Mfr. Part No.2320225
HK$1,967.80
Each
units
QUINT-UPS/ 24DC/ 24DC/10 - - 24V dc 24V dc DIN Rail - - - - 130mm 35mm 125mm
RS Stock No. 768-8761
Mfr. Part No.IDG 1600
BrandRiello
HK$2,227.35
Each
units
IDialog Plus 960W 1600VA 230V 220 → 240V ac Stand Alone - 6 Offline - 275mm 97mm 315mm
RS Stock No. 768-8767
Mfr. Part No.IDG 1200
BrandRiello
HK$1,660.02
Each
units
IDialog Plus 720W 1200VA 230V 220 → 240V ac Stand Alone - 6 Offline - 275mm 97mm 315mm
RS Stock No. 823-8979
Mfr. Part No.DS1000IL
BrandOPTI
HK$4,284.61
Each
units
Durable 900W 1000VA 220 → 240V ac 176 → 288V ac Stand Alone 6min 4 Online - 222mm 144mm 353mm
RS Stock No. 823-9398
Mfr. Part No.5P850iR
BrandEaton
HK$4,997.92
Each
units
5P 600W 850VA 230V 160 → 294V Rack Mount 12min 8 Line Interactive 10A 1U 438mm 509mm
RS Stock No. 680-7891
Mfr. Part No.RT 2VA RM 230V
BrandAPC
HK$212,866.60
Each
units
- - - - - - - - - - - - -
RS Stock No. 689-9070
Mfr. Part No.BK500EI
BrandAPC
HK$1,399.05
Each
units
Back-UPS CS 300W 500VA 230V 180 → 266V Stand Alone - 6 Offline 7A 165mm 91mm 284mm
RS Stock No. 689-9073
Mfr. Part No.BK650EI
BrandAPC
HK$1,627.81
Each
units
Back-UPS CS 400W 650VA 230V 180 → 266V Stand Alone - 6 Offline 7A 165mm 91mm 284mm
RS Stock No. 729-9083
Mfr. Part No.ES1000C (HK)
BrandNEUTRAL
HK$2,516.18
Each
units
- 700W 1000VA 110 V ac, 230 V ac 110 V ac, 230 V ac Stand Alone 40min - Line Interactive - 378mm 140mm 207mm
RS Stock No. 779-3816
Mfr. Part No.BR900GI
BrandAPC
HK$2,518.41
Each
units
Power-Saving Back-UPS Pro 540W 900VA 230V 230V Stand Alone 5min 10 Line Interactive 8A 100mm 250mm 382mm
RS Stock No. 779-3803
Mfr. Part No.BR1500GI
BrandAPC
HK$4,121.10
Each
units
Power-Saving Back-UPS Pro 865W 1500VA 230V 230V Stand Alone 4min 12 Line Interactive - 112mm 301mm 380mm
RS Stock No. 869-4997
Mfr. Part No.NPW 1000
BrandRiello
HK$1,877.57
Each
units
Net Power 600W 1000VA 230V 220 → 240V ac Desktop - 4 Line Interactive - 160mm 146mm 350mm
RS Stock No. 823-9401
Mfr. Part No.5P1550iR
BrandEaton
HK$8,556.18
Each
units
5P 1.1kW 1550VA 230V 160 → 294V Rack Mount 13min 8 Line Interactive 10A 1U 438mm 554mm
RS Stock No. 627-6225
Mfr. Part No.UB10.241
BrandPULS
HK$2,219.62
Each
units
DIMENSION 240W - 22.4V dc 22.5 → 30V dc DIN Rail - - DC 10A 124mm 49mm 117mm
RS Stock No. 869-5003
Mfr. Part No.NPW 2000
BrandRiello
HK$3,205.10
Each
units
Net Power 1.2kW 2000VA 230V 220 → 240V ac Desktop - 6 Line Interactive - 205mm 146mm 397mm
RS Stock No. 739-7869
Mfr. Part No.2320238
HK$2,202.10
Each
units
QUINT-UPS/24DC/24DC/20 - - 24V dc 24V dc DIN Rail - - - - 130mm 40mm 125mm
RS Stock No. 823-8975
Mfr. Part No.DS1000I
BrandOPTI
HK$4,150.03
Each
units
Durable 900W 1000VA 220 → 240V ac 176 → 288V ac Stand Alone 6min 4 Online - 222mm 144mm 353mm
RS Stock No. 739-7878
Mfr. Part No.2320241
HK$3,488.22
Each
units
QUINT-UPS/ 24DC/ 24DC/40 - - 24V dc 24V dc DIN Rail - - - - 130mm 47mm 125mm
RS Stock No. 459-815
Mfr. Part No.IDG 600/RS
BrandRiello
HK$626.85
Each
units
IDialog 360W 600VA 230V 220 → 240V ac Stand Alone - 4 Line Interactive, Offline - 192mm 90mm 232mm
RS Stock No. 779-3819
Mfr. Part No.SC420I
BrandAPC
HK$1,869.79
Each
units
Smart-UPS SC 260W 420VA 230V 230V Stand Alone 5min 6 Line Interactive - 119mm 168mm 368mm
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