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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Omschrijving Prijs Model Power Rating Input Voltage Output Voltage VA Rating Backup Time Mounting Type Communications Current Rating Number of Outlets Type Length Width Depth
RS-stocknr. 668-0532
Fabrikantnummer6EP1933-2EC51
FabrikantSiemens
€ 407,00
Each
Aantal stuks
SITOP UPS500S 360W 22 → 29V dc 24V dc - - DIN Rail - 15.2A 1 Switch Mode 125mm 120mm 125mm
RS-stocknr. 624-7457
Fabrikantnummer6EP1931-2FC42
FabrikantSiemens
€ 351,00
Each
Aantal stuks
SITOP DC 960W 22 → 29V dc 24V dc - - DIN Rail USB 42.6A - - 125mm 102mm 125mm
RS-stocknr. 668-0545
Fabrikantnummer6EP1933-2NC01
FabrikantSiemens
€ 555,00
Each
Aantal stuks
SITOP UPS500P 168W 22.5 → 29V dc 23.3 → 24.7V dc - - - USB 7A 1 Switch Mode 80mm 400mm 80mm
RS-stocknr. 473-1045
Fabrikantnummer6EP1931-2DC21
FabrikantSiemens
€ 140,00
Each
Aantal stuks
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - DIN Rail Serial Port, USB 6A - - 125mm 50mm 125mm
RS-stocknr. 473-1001
Fabrikantnummer6EP1931-2EC31
FabrikantSiemens
€ 213,00
Each
Aantal stuks
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - DIN Rail Serial Port, USB 15A - - 125mm 50mm 125mm
RS-stocknr. 499-9601
Fabrikantnummer6EP1931-2FC21
FabrikantSiemens
€ 331,00
Each
Aantal stuks
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - DIN Rail USB 40A - - 125mm 102mm 125mm
RS-stocknr. 624-7479
Fabrikantnummer6EP1931-2EC42
FabrikantSiemens
€ 213,00
Each
Aantal stuks
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - - Serial Port, USB 15A - - 125mm 50mm 125mm
RS-stocknr. 741-8726
Fabrikantnummer6EP1933-2EC41
FabrikantSiemens
€ 320,00
Each
Aantal stuks
SITOP UPS500S 360W 24V dc 24V dc - - DIN Rail USB 17.5A 1 Switch Mode 120mm 125mm 120mm
RS-stocknr. 473-1039
Fabrikantnummer6EP1931-2DC31
FabrikantSiemens
€ 180,00
Each
Aantal stuks
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - DIN Rail Serial Port, USB 6A - - 125mm 50mm 125mm
RS-stocknr. 473-1017
Fabrikantnummer6EP1931-2EC21
FabrikantSiemens
€ 171,00
Each
Aantal stuks
SITOP DC - 22 → 29V dc 21.5 → 28.5V dc - - DIN Rail Serial Port, USB 15A - - 125mm 50mm 125mm