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Secure your power supply with NO-BREAK KS®
  • 2017.09.29 Recertification for EURO-DIESEL UK

    EURO-DIESEL (UK) Ltd (EDUK) is pleased to announce its successful recertification to: ISO 9001 Quality Management, ISO14001 Environment Management, OHSAS 18001 Occupational H&S Management.


  • 2017.04.10 Come and visit us at fairs and shows around the world

    Taking advantage of our worldwide network, we participate in many exhibitions about Data Center, Airport & Industry.

    Check out our next destinations!

  • 2017.02.08 EURO-DIESEL has been rated as STRONG

    EURO-DIESEL has been rated as “STRONG” in a new analysis of Europe's 687 largest Electrical Component Manufacturers. This is the highest accolade awarded and reflects our excellent performance over the last 12 months.


  • 2017.01.05 FORTRUST adopts Diesel Rotary UPS for backup power

    Is it a generator? A UPS? A flywheel? The new backup power systems at colocation specialist FORTRUST bring these elements together. As FORTRUST expands its Denver data center, it will use Diesel Rotary Uninterruptible Power Supply (DRUPS) from E1 Dynamics to provide emergency power during utility outages. The DRUPS unit features a diesel engine and a rotary UPS that uses kinetic energy, eliminating the need for batteries.


  • 2016.08.03 E1 DYNAMICS PRESENTS DRUPS: A Technical Review

    Flyer E1

  • 2016.06.20 EURO-DIESEL in the News - Jobs Regions 17062016


    Bien que ne faisant pas directement partie de l’aéronautique à proprement parler, la société EURO-DIESEL entretient néanmoins des liens étroits avec le secteur. Le plus évident est probablement le rôle essentiel joué par son produit phare auprès d’un de ses clients les plus importants: les aéroports & tours de contrôle du trafic aérien. Le très haut degré de technicité de ce produit le rend également comparable aux technologies de l’aéronautique. Nous avons rencontré Philippe Gillain, administrateur délégué d’EURO-DIESEL, qui nous explique les spécificités de cette entreprise liégeoise, et les profils qui contribuent à sa réussite.



200-2500kVA (50Hz) / 240-3000kVA (60Hz)

More than just a DRUPS : Two functions in one

Many industries have a combination of critical and non-critical loads in their facility. The NO-BREAK KS®5-SB is the perfect match to combine both load types by powering the critical loads at all times, and then powering the non-critical loads within a maximum of 10 seconds' break.

The NO-BREAK KS®5-SB eliminates the need of additional diesel generators, saves on floor space and eventually, saves on building costs. As a result, this reduces the total Cost of Ownership.



Diesel Rotary UPS : NO-BREAK KS5-SB Conditioning Mode




Diesel Rotary UPS : NO-BREAK KS5-SB1 Conditioning Mode


The critical loads are fed from the DRUPS: QD2 is  closed.

Non-critical loads are fed from the mains: QD5 is closed and QD6 is opened but the breaker QD5 opens and within a maximum of 10 seconds, QD6 is closed to provide power supply to the non-critical loads.

On mains failure, the critical loads are automatically protected at all times.



Diesel Rotary UPS :  NO-BREAK KS5-SB2 Conditioning Mode

The introduction of a tapped choke in the electrical scheme provides an additional advantage: in case of a short-circuit on the non-critical busbar, the critical load will be unaffected since the choke will reduce the influence on the critical busbar.


Note :  It is recommended that for all NO-BREAK KS®5-SB systems, the critical loads are higher than the non-critical loads.

Output power split examples (in 60Hz):   

1.   Critical load = 360kVA, total output power = 560kVA. Therefore the rating is 360/560kVA.

2.   Critical load = 1200kVA, total output power = 1800kVA. Therefore the rating is 1200/1800kVA.



Technical and economical advantages:

  • Critical and non-critical loads are supplied from one system, therefore no need to install a separate generating set for the non-critical loads
  • Compact solution with small footprint: only one room required for installation
  • Lower installation costs due to reduction in cabling and switchgear requirements
  • Possibility to parallel   systems


Note: The above systems also exist in 690 V and in medium voltage.