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Online UPS including Tower, Rackmount and Floor Standing Uninterruptible Power Supplies

Online UPS provide the ultimate form of uninterruptible power with a digitally generated sinewave output supply, the ability provide back-up for long duration runtimes and a built-in automatic static bypass. Online UPS can be single or three phase, with online three phase systems capable of running in parallel/ redundant (N+X) configurations for added resilience and scalability.

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CertaUPS C400 1kVA UPS from £208.00
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CertaUPS C400Li 1kVA Lithium ion Battery UPS from £308.75
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CertaUPS C400R 1kVA Tower/Rack Mount UPS from £330.00
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CertaUPS C400 2kVA UPS from £333.00
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CertaUPS C400 3kVA UPS from £420.00
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CertaUPS C400Li 2kVA Lithium ion Battery UPS from £431.25
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CertaUPS C400R 2kVA Tower/Rack Mount UPS from £461.00
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CertaUPS C400Li 3kVA Lithium ion Battery UPS from £550.00
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CertaUPS C400R 3kVA Tower/Rack Mount UPS from £568.00
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CertaUPS C550 6kVA UPS from £980.00
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CertaUPS C550 10kVA UPS from £1,235.00
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CertaUPS C550R 6kVA Tower/Rack Mount UPS from £1,385.00

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For more information on our online UPS please contact our project team.

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Related FAQs

  • How long can an online UPS run on batteries?

    The inverter section of an double or triple conversion online uninterruptible power supply is designed for continuous running and the powering of the connected load. This features allows the UPS to be connected to battery extension packs for long runtime applications up to seven hours or more. Some smaller online UPS may be restricted to 4hours on battery at full load in order to protect the inverter electronics from heat damage.

  • What is an Online UPS?

    An on-line double conversion UPS is a Voltage and Frequency Independent (VFI) uninterruptible power supply as defined by BS EN 62040. The inverter in this type of UPS produces a digitally generated sinewave output, supplied from a DC rectifier supply. The DC rectifier/converter supplies DC power to the inverter from the rectified mains power supply or the connected battery set.

  • What is a double conversion UPS?

    The term ‘double-conversion’ online UPS refers to the conversion of mains power supply AC (alternating current) by the rectifier/converter to a DC (direct current) to supply the inverter and charge the battery set. The inverter section to which the load is always connected ‘inverts’ the DC to AC. The AC-DC-AC process is described as ‘double conversion’. There is also a Triple Conversion online UPS mode for some designs covering AC-DC-DC-AC where the DC-DC is a converter.