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 Input Voltage Output Voltage VA Rating Backup Time Mounting Type Communications Current Rating Number of Outlets Type Length Width Depth
RS Stock No. 823-9398
Mfr. Part No.5P850iR
BrandEaton
HK$4,997.92
Each
units
5P 600W 160 → 294V 230V 850VA 12min Rack Mount RS232, USB 10A 8 Line Interactive 1U 438mm 509mm
RS Stock No. 624-9419
Mfr. Part No.68180
BrandEaton
HK$7,532.20
Each
units
EX 630W 160 → 284V 230V 700VA - Stand Alone Serial Port, Terminal Block, USB - 6 Online 242mm 153mm 440mm
RS Stock No. 823-9401
Mfr. Part No.5P1550iR
BrandEaton
HK$8,556.18
Each
units
5P 1.1kW 160 → 294V 230V 1550VA 13min Rack Mount RS232, USB 10A 8 Line Interactive 1U 438mm 554mm
RS Stock No. 823-9388
Mfr. Part No.5P850i
BrandEaton
HK$3,604.23
Each
units
5P 600W 160 → 294V 230V 850VA 12min Tower RS232, USB 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 624-9425
Mfr. Part No.68181
BrandEaton
HK$9,335.35
Each
units
EX 900W 160 → 284V 230V 1000VA 12min Stand Alone Mini Terminal Block, Serial Port, USB - 6 Online 440mm 242mm 153mm
RS Stock No. 823-9354
Mfr. Part No.ELP850FR
BrandEaton
HK$2,543.72
Each
units
Ellipse Pro 510W 165 → 285V 230V 850VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 823-9417
Mfr. Part No.5PXEBM72RT3U
BrandEaton
HK$7,115.90
Each
units
5PX - - - 3000VA 285min Rack Mount - - - Extended Battery Module 3U 441mm 497mm
RS Stock No. 823-9382
Mfr. Part No.5P1150i
BrandEaton
HK$5,265.58
Each
units
5P 770W 160 → 294V 230V 1150VA 12min Tower RS232, USB 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 823-9350
Mfr. Part No.ELP650FR
BrandEaton
HK$1,762.61
Each
units
Ellipse Pro 400W 165 → 285V 230V 650VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 823-9385
Mfr. Part No.5P650i
BrandEaton
HK$3,131.74
Each
units
5P 420W 160 → 294V 230V 650VA 9min Tower RS232, USB 10A 8 Line Interactive 230mm 150mm 345mm
RS Stock No. 823-9357
Mfr. Part No.ELP1600IEC
BrandEaton
HK$3,852.13
Each
units
Ellipse Pro 1kW 165 → 285V 230V 1600VA 9min Rack Mount, Tower USB 10A 8 Line Interactive 275mm 82mm 390mm
RS Stock No. 823-9408
Mfr. Part No.5P1150iR
BrandEaton
HK$6,762.95
Each
units
5P 770W 160 → 294V 230V 1150VA 12min Rack Mount RS232, USB 10A 8 Line Interactive 1U 438mm 509mm
RS Stock No. 823-9360
Mfr. Part No.ELP650DIN
BrandEaton
HK$1,758.73
Each
units
Ellipse Pro 400W 165 → 285V 230V 650VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 125-3911
Mfr. Part No.9PX2200IRTBPB
BrandEaton
HK$16,855.06
Each
units
- 2.2kW 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V 240V 2200VA 5 min @ 1800 W Rack Mount, Tower Mini Terminal Block, RS-232, USB 16A 2 (IEC C19), 8 (IEC C13) Online 130mm 440mm 485mm
RS Stock No. 823-9341
Mfr. Part No.ELP650IEC
BrandEaton
HK$1,762.61
Each
units
Ellipse Pro 400W 165 → 285V 230V 650VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 823-9379
Mfr. Part No.ELP850DIN
BrandEaton
HK$2,362.62
Each
units
Ellipse Pro 510W 165 → 285V 230V 850VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm
RS Stock No. 125-3917
Mfr. Part No.9PX3000IRTBPB
BrandEaton
HK$22,900.30
Each
units
- 3kW 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V 240V 3000VA 4 min @ 2500 W Rack Mount, Tower Mini Terminal Block, RS-232, USB 16A 2 (IEC C19), 8 (IEC C13) Online 130mm 440mm 485mm
RS Stock No. 624-9447
Mfr. Part No.68183
BrandEaton
HK$12,540.58
Each
units
EX 1.35kW 160 → 284V 230V 1500VA 9min Stand Alone Mini Terminal Block, Serial Port, USB - 6 Online 490mm 242mm 153mm
RS Stock No. 823-9366
Mfr. Part No.ELP1600FR
BrandEaton
HK$3,852.13
Each
units
Ellipse Pro 1kW 165 → 285V 230V 1600VA 9min Rack Mount, Tower USB 10A 8 Line Interactive 275mm 82mm 390mm
RS Stock No. 823-9344
Mfr. Part No.ELP850IEC
BrandEaton
HK$2,543.72
Each
units
Ellipse Pro 510W 165 → 285V 230V 850VA 9min Rack Mount, Tower USB 10A 4 Line Interactive 260mm 82mm 285mm