World's first.

The Blue e+ cooling unit series – the ultimate in efficiency. Worldwide.

What is the basis of Blue e+?

Have a look at the two videos.
Blue e+ features Output class 1,600 W

New output class
1,600 W

A revolution in energy efficiency through innovative hybrid technology.

Heat pipe technology.

Learn more about this on the next page.

Future-proof climate control.

  • Active cooling circuit with speed-regulated components for demand-based cooling
  • Integrated heat pipe for passive cooling

Energy efficiency at a glance.

  • Energy Efficiency Ratio: the standard KPI
  • Seasonal Energy Efficiency Ratio: reflecting actual consumption

Download brochure (PDF)

The e+ Principle.

Energy efficiency through hybrid technology.

Ambient temperature above enclosure internal temperature

Ambient temperature equal to enclosure internal temperature

Ambient temperature below enclosure internal temperature

Hybrid technology:
Pioneering climate control.
  • Average energy savings of 75%
  • Active cooling circuit with speed-regulated components for demand-based cooling
  • Integral heat pipe for passive cooling
  • Constant temperature inside the enclosure
  • Component-friendly cooling for a longer service life

Energy savings
up to 75%

Work out how much
you could save.

Energy efficiency calculator

Proven savings potential
with leading technologies.

Performance comparison video

TopTherm Plus


The first cooling units with nano-coating and integrated electric condensate evaporators.

Blue e


The first cooling units with EC fans and Eco-mode control.

Blue e+


The first cooling units with integrated heat pipes and speed-regulated refrigerant circuit.

Maximum flexibility
with multi-voltage capability.

One device for all supply voltages and networks.

Multi-voltage capability video

Suitable for worldwide
use with:

  • 110–230 V, 1~, 50/60 Hz
  • 240 V, 2~, 50/60 Hz
  • 380–480 V, 3~, 50/60 Hz

Reduced complexity saves effort and storage space.

  • One standard model, one range of spare parts
  • Lower storage and logistics costs

Versatility through
standard assembly.

Easy assembly.

  • A single version for external, partial internal and full internal mounting
  • Standardised installation cut-outs for multiple output categories
  • Maintenance-friendly filter mat replacement

Rapid assembly.

  • Handles for convenient transport and positioning
  • Eyebolts for easy mounting

Thermal management protects components
and extends their service life.

Guaranteed constant temperature
inside the enclosures.

IoT interface

  • For linking Blue e+ cooling units and Blue e+ chillers to the customer's own monitoring, energy management and/or superordinate systems
  • Analysis and parametrisation
  • Device data can be supplied in most standard protocols
  • Generate your own dashboards and analyses
  • Attaches to the top hat rail or to the cooling unit itself

Start video


“Rittal’s inspection revealed significant savings potentials for our plant.”

Helmar Bencker, Plant Engineering & Environment Manager at Ford in Cologne

Go to press release

“The new Blue e+ cooling units will cut PMI’s annual energy costs by 55,000 euros.”

Christian Lefherz, the supervisor responsible for electronic support and maintenance at PMI’s Berlin facility

Go to press release

“Rittal provides both the enclosures and the compatible cooling technology with a high level of reliability. Due to the high demand, we currently have production throughput times of just four weeks. This means that having a supplier of end-to-end systems like Rittal is very important for us.”

Ludwig Dinkloh, Manager Global Product Management at Wedeco

Go to press release

“We are always motivated to help genuine innovations make a real breakthrough.”

Philippe Demarque, Project Manager, Nestlé PTC Orbe

Go to press release