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A new generation of cooling units is being launched in the UK by Rittal. 

As well as being far more energy efficient than existing cooling solutions, Blue e systems use state-of-the-art technologies to also deliver greater flexibility, safety and ease of handling.

Key to the efficacy of the Blue e is Rittal’s innovative patented hybrid
 system. “The hybrid system increases energy efficiency significantly,” 
says Steffen Wagner, Rittal’s head of climate control product
 management. 

“It uses a clever combination of a compressor cooling device and a
heat pipe to take maximum advantage of passive cooling. The
 compressor only kicks in when passive cooling becomes insufficient
 to meet demand,” he adds. 

Blue e units are six times more efficient than a conventional cooling 
unit at a part-load of 15 per cent in heat-pipe mode. At a part-load of 
65 per cent, in hybrid mode, with both the compressor cooling device 
and heat pipe in operation, Blue e is four times more efficient than a 
conventional unit. 

The energy efficiency of the compressor cooling is also very high.
 DC motors power both the fans and the compressor, while inverter 
technology adjusts the compressor and fan speeds so the cooling output
 matches demand at any one time. 

 “Initial tests have shown that thanks to the high energy efficiency of
 new cooling units, energy savings of up to 75 per cent are possible,”
 says Wagner. 

All Blue e units have multi-voltage capability and so are suitable for 
all standard power networks worldwide. Input voltages range from
 110V (single phase) to 480V (three-phase) at grid frequencies of 50
 or 60Hz. 

Demand-based cooling eliminates both thermal stress and any temperature
 fluctuations within the enclosure. This, in turn, increases the service life 
of the cooling units and enclosure components and also means higher 
process reliability. 

The Blue e range has cooling capacities that extend to up to 6,000W (the maximum available from the preceding Blue e unit is 4,000W) and 
it can be used in ambient temperatures ranging from -30°C to 60°C. 

Standardised communication interfaces ensure easy integration into a
 production plant’s control systems. The 4.3in TFT touchscreen display
 presents users with key information at a glance, while system messages 
are plain text and multi-lingual. Moreover, a variety of protocols permit
real time data transfer via the Ethernet interface.   



What’s more, all Blue e units are identical across all markets, which 
means that spare parts are easier to get hold of. 

Rittal is your top supplier worldwide for innovative enclosure and housing technologies from A to Z.

  • 10,000 committed staff worldwide
  • 19 high-tech-production facilities around the world
  • 60 international subsidiaries
  • 22 delivery centres in England, more than 150 worldwide
  • More than 70 international agencies
  • More than 10,000 standard products available immediately

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