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. 739-7865
Mfr. Part No.2320225
HK$2,091.09
Each
units
QUINT-UPS/ 24DC/ 24DC/10 - - 24V dc 24V dc DIN Rail - - - - - 130mm 35mm 125mm
RS Stock No. 739-7869
Mfr. Part No.2320238
HK$2,340.07
Each
units
QUINT-UPS/24DC/24DC/20 - - 24V dc 24V dc DIN Rail - - - - - 130mm 40mm 125mm
RS Stock No. 739-7878
Mfr. Part No.2320241
HK$8,042.98
Each
units
QUINT-UPS/ 24DC/ 24DC/40 - - 24V dc 24V dc DIN Rail - - - - - 130mm 47mm 125mm
RS Stock No. 761-7649
Mfr. Part No.2320267
HK$5,673.28
Each
units
QUINT-UPS/ 24DC/ 24DC/10/3.4AH - - 18 → 30V dc 18 → 30V dc DIN Rail 10min - 1 - 18.6A 169mm 120mm 125mm
RS Stock No. 665-7857
Mfr. Part No.2866611
HK$2,264.04
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. 665-7851
Mfr. Part No.2866598
HK$1,923.26
Each
units
MINI-DC-UPS/12DC/4 - - 12V dc 100 → 240V ac DIN Rail - - - Buffer Module 4A 202mm 135mm 110mm
RS Stock No. 761-7630
Mfr. Part No.2320254
HK$2,523.99
Each
units
QUINT-UPS/ 24DC/ 24DC/ 5/1.3AH - - 18 → 30V dc 18 → 30V dc DIN Rail 5min - 1 - 9.3A 138mm 88mm 125mm
RS Stock No. 665-7918
Mfr. Part No.2866239
HK$6,522.74
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
HK$3,481.08
Each
units
QUINT-BUFFER/24DC/20 - - 24V dc 24V dc DIN Rail - - - DC 20.6A 130mm 64mm 125mm
RS Stock No. 751-2601
Mfr. Part No.2320335
HK$5,351.17
Each
units
UPS-BAT/VRLA/24DC/38AH - - - 24V dc - - - - - 50A 210mm 330mm 197mm
RS Stock No. 665-7914
Mfr. Part No.2866242
HK$13,240.13
Each
units
QUINT-DC-UPS/24DC/40 - - 24V dc 22.5 → 30V dc DIN Rail - - - DC 42.5A 130mm 66mm 125mm
RS Stock No. 180-5493
Mfr. Part No.2906991
HK$2,522.42
Each
units
QUINT4 240W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 8.3A 35mm 125mm 130mm
RS Stock No. 801-6400
Mfr. Part No.2320270
HK$10,808.43
Each
units
- - - - 230V ac DIN Rail Mount - - - Switch Mode - - 125mm 125mm
RS Stock No. 180-5494
Mfr. Part No.2906993
HK$3,489.32
Each
units
QUINT4 240W - 18 → 32V dc 18 → 30V dc DIN Rail - PROFINET - UPS 8.3A 35mm 125mm 130mm
RS Stock No. 180-5503
Mfr. Part No.2907072
HK$3,075.19
Each
units
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 31.4A 40mm 125mm 130mm
RS Stock No. 180-5505
Mfr. Part No.2907074
HK$4,340.49
Each
units
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 31.4A 40mm 125mm 130mm
RS Stock No. 180-5495
Mfr. Part No.2906994
HK$3,411.42
Each
units
QUINT4 240W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 8.3A 35mm 125mm 130mm
RS Stock No. 180-5491
Mfr. Part No.2906367
HK$5,868.64
Each
units
TRIO-UPS-2G/3AC/24DC/20 - - 24V dc 400V ac DIN Rail - - - UPS - 88mm 160mm 130mm
RS Stock No. 180-5504
Mfr. Part No.2907073
HK$4,133.47
Each
units
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - PROFINET - UPS 31.4A 40mm 125mm 130mm
RS Stock No. 180-5508
Mfr. Part No.2907078
HK$5,214.85
Each
units
QUINT4 1.44kW - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 51.2A 47mm 125mm 130mm