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庫存編號 168-2510
製造零件編號2868693
HK$2,994.47
單位
- - - 15V dc 16.5V dc DIN Rail - - - UPS - - 108mm 61mm
RS庫存編號 768-8834
製造零件編號SEP 2200ER
BrandRiello
HK$8,163.87
單位
Sentinal Pro 1.76kW 2200VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 8 Line Interactive, Online - 333mm 190mm 446mm
RS庫存編號 188-0195
製造零件編號SMT750IC
BrandAPC
HK$4,455.51
單位
Smart-UPS SMT 500W 750VA 230V 160 → 286V Tower - - 1 Line Interactive - 138mm 363mm 161mm
RS庫存編號 201-9778
製造零件編號5SC1500IR
BrandEaton
HK$8,005.29
單位
Eaton 5SC 1.05kW 1500VA 230V ac 184 → 276V ac - - - - - - - - -
RS庫存編號 180-5505
製造零件編號2907074
HK$4,035.09
單位
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 31.4A 40mm 125mm 130mm
RS庫存編號 823-9379
製造零件編號ELP850DIN
BrandEaton
HK$2,586.26
單位
Eaton Ellipse PRO 510W 850VA 230V 165 → 285V Rack Mount, Tower 9min - 4 Line Interactive 10A 260mm 82mm 285mm
RS庫存編號 201-9761
製造零件編號5SC1000i
BrandEaton
HK$4,478.69
單位
Eaton 5SC 700W 1000VA 230V ac 184 → 276V ac - - - - - - - - -
RS庫存編號 201-0846
製造零件編號SMC1500I-2UC
BrandAPC
HK$7,923.00
單位
Smart-UPS 900W 1500VA 230V 230V - - - - - 6.5A - - -
RS庫存編號 667-5394
製造零件編號PVUA 24/24-10
BrandBlock
HK$2,005.88
單位
PV 480W - 24V dc 22 → 29V dc DIN Rail - - - - 10.8A 127mm 40mm 163mm
RS庫存編號 180-5492
製造零件編號2906990
HK$2,450.38
單位
QUINT4-UPS/24DC/24DC/5 240W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 8.3A 35mm 125mm 130mm
RS庫存編號 125-3918
製造零件編號9PX3000IRTBPH
BrandEaton
HK$20,075.99
單位
Eaton 9PX 3kW 3000VA 240V 100 → 276 (With Derating) V, 176 → 276 (Without Derating) V Rack Mount, Tower 4 min @ 2500 W - 2 (IEC C19), 8 (IEC C13) Online 16A 130mm 440mm 485mm
RS庫存編號 201-9777
製造零件編號5SC2200IRT
BrandEaton
HK$9,959.30
單位
Eaton 5SC 1.98kW 2200VA 230V ac 184 → 276V ac - - - - - - - - -
RS庫存編號 768-8880
製造零件編號SDH 3000 ER
BrandRiello
HK$11,845.74
單位
Sentinel Dual 2.4kW 3000VA - 220 V ac, 230 V ac, 240 V ac Stand Alone - - 9 Line Interactive, Online - 87mm 450mm 625mm
RS庫存編號 201-0845
製造零件編號SMC1000I-2UC
BrandAPC
HK$6,644.43
單位
Smart-UPS 600W 1000VA 230V 230V - - - - - 4.3A - - -
RS庫存編號 201-9776
製造零件編號5SC3000IRT
BrandEaton
HK$14,923.20
單位
Eaton 5SC 2.7kW 3000VA 230V ac 184 → 276V ac - - - - - - - - -
RS庫存編號 180-5504
製造零件編號2907073
HK$4,675.03
單位
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - PROFINET - UPS 31.4A 40mm 125mm 130mm
RS庫存編號 201-0844
製造零件編號SMC1500IC
BrandAPC
HK$6,387.26
單位
Smart-UPS 900W - 230V 230V - - - - - 6.5A - - -
RS庫存編號 180-5503
製造零件編號2907072
HK$3,458.23
單位
QUINT4 720W - 18 → 32V dc 18 → 30V dc DIN Rail - - - UPS 31.4A 40mm 125mm 130mm
RS庫存編號 668-0532
製造零件編號6EP1933-2EC51
BrandSiemens
HK$3,828.73
單位
SITOP UPS500S 360W - 24V dc 22 → 29V dc DIN Rail - - 1 Switch Mode 15.2A 125mm 120mm 125mm
RS庫存編號 201-0843
製造零件編號SMC1000IC
BrandAPC
HK$4,896.89
單位
Smart-UPS 600W 1000VA 230V 230V - - - - - 4.3A - - -