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
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RS庫存編號 215-3192
製造零件編號BE400-IT
HK$1,913.52
單位
APC Back-UPS 400 250W 400VA 230V 230V - - - - - 10A - - -
全新
RS庫存編號 215-3193
製造零件編號BE650G2-FR
HK$2,120.45
單位
APC Back-UPS 650VA 400W 650VA 230V 230V - - - - - 6A - - -
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RS庫存編號 215-3218
製造零件編號BX700UI
HK$1,731.19
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APC Back-UPS 700VA 390W 700VA 230V 230V - - - - - 7A - - -
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RS庫存編號 207-6154
製造零件編號SX3800CI
HK$2,016.90
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SX3800CI 480W 800VA 230V 230V - - - - - 2A - - -
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RS庫存編號 215-3194
製造零件編號BE650G2-GR
HK$2,196.88
單位
APC Back-UPS 400 240W 400VA 230V 230V - - - - - 10A - - -
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RS庫存編號 215-3249
製造零件編號SRT2200RMXLI
HK$33,378.48
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APC Smart-UPS SRT 2200VA 1.98kW 2200VA 230V 230V - - - - - - - - -
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RS庫存編號 215-3219
製造零件編號BX950U-FR
HK$2,249.73
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APC BACK-UPS 950VA 480W 950VA 230V 230V - - - - - 4A - - -
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RS庫存編號 215-3195
製造零件編號BE650G2-IT
HK$2,120.45
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APC Back-UPS 650VA 400W 650VA 230V 230V - - - - - 6A - - -
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RS庫存編號 215-3208
製造零件編號BR650MI
HK$3,361.13
單位
Back UPS Pro BR 650VA 390W 650VA 230V 230V - - - - - 10A - - -
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RS庫存編號 215-3250
製造零件編號SRT2200RMXLI-NC
HK$41,740.81
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APC Smart-UPS SRT 2200VA 1.98kW 2200VA 230V 230V - - - - - - - - -
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RS庫存編號 215-3220
製造零件編號BX950U-GR
HK$2,399.36
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APC BACK-UPS 950VA 480W 950VA 230V 230V - - - - - 4A - - -
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RS庫存編號 207-6149
製造零件編號SX31K1CI
HK$2,901.91
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SX31K1CI 660W 1100VA 230V 230V - - - - - 5A - - -
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RS庫存編號 215-3238
製造零件編號SMX3000HVNC
HK$46,792.64
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APC Smart-UPS X 3000VA 2.7kW 3000VA 230V 208 V, 230 V - - - - - - - - -
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RS庫存編號 215-3266
製造零件編號SRVS2KI
HK$13,252.18
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Easy UPS 1Ph on-line SRVS 2000 VA 1.6kW 2000VA 230V 230V - - - - - - - - -
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RS庫存編號 215-3200
製造零件編號BE850G2-UK
HK$2,379.01
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APC Back-UPS 850VA 520W 850VA 230V 230V - - - - - 6A - - -
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RS庫存編號 215-3196
製造零件編號BE650G2-UK
HK$2,120.45
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APC Back-UPS 650VA 400W 650VA 230V 230V - - - - - 6A - - -
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RS庫存編號 215-3209
製造零件編號BR900G-FR
HK$4,732.31
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APC Power-Saving Back-UPS Pro 900 540W 900VA 230V 230V - - - - - 8A - - -
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RS庫存編號 215-3251
製造零件編號SRT2200XLI
HK$30,229.95
單位
APC Smart-UPS SRT 2200VA 1.98kW 2200VA 230V 230V - - - - - - - - -
全新
RS庫存編號 215-3221
製造零件編號BX950UI
HK$2,247.50
單位
APC Back-UPS 950VA 480W 950VA 230V 230V - - - - - 4A - - -
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RS庫存編號 215-3216
製造零件編號BX700U-FR
HK$1,784.74
單位
APC BACK-UPS 700VA 390W 700VA 230V 230V - - - - - 7A - - -