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Secure your power supply with NO-BREAK KS®


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.