We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Rittal Blue e+S Cooling Units: Efficient, Smart Climate Control from LED Controls

What is the Rittal Blue e+S?
Take the world's most efficient electrical enclosure cooling unit to the next level with the Rittal Blue e+S range. Combining technical innovation with new, more eco-friendly refrigerant options, Blue e+S is available now from LED Controls.
How Enclosure Cooling Works
Enclosure cooling works in a similar way to air conditioning. Electrical enclosures contain sensitive components such as drives, power supplies, and control systems. When these components operate, they generate heat. If this heat goes unchecked, it can cause problems for the electrical system.
Cooling units work by drawing warm air into the unit, running it through a refrigeration system, and returning cooled air back into the enclosure. The Rittal Blue e+S improves this process with hybrid cooling technology.

This combines passive cooling - using a heat pipe that transfers heat with minimal energy - and active cooling - using a compressor - when additional cooling is required.

This approach improves efficiency by only using energy when absolutely necessary.
Energy Efficiency and Sustainability
Traditional cooling units often run continuously at full power, but Blue e+S units use inverter-driven components that adjust performance based on demand. This allows the system to reduce energy usage significantly while maintaining precise temperature control. The use of modern refrigerants with lower environmental impact also helps reduce global warming potential. Overall, Blue e+S offers you lower operating costs, reduced carbon emissions, and longer equipment life. All good news!

Future-facing Refrigerant Options
The Rittal Blue e+S range is available with two refrigerant options: R-513A and R-1234yf. R-513A is a modern replacement for older refrigerants such as R134a. Reliable, non-flammable, and widely used in industrial applications, R-513A is a standard choice. R-1234yf is a newer generation refrigerant designed to meet stricter environmental regulations and reduce carbon impact. The trade-off is that R-1234yf is classified as mildly flammable, which means there are certain applications and environments where it may not be suitable. Both options deliver similar cooling performance, and while R-1234yf is the more environmentally friendly option, R-513A remains a robust and widely accepted solution.
Read more about incoming refrigerant regulations here.
Smart Monitoring and Digital Features
The Rittal Blue e+S is designed for modern industrial environments where monitoring and data are increasingly important. The units include an IIoT interface that allows connection to monitoring systems. Condition monitoring tools track performance and provide early warning of issues. Users can access system data through mobile apps, which makes it easier to diagnose faults and plan preventative maintenance, keeping your systems running reliably.

Installation and Maintenance
Ease of installation is an important factor in industrial settings. The Blue e+S is designed for quick mounting and are supplied ready for connection, usually allowing installation by a single person. Maintenance is also simplified, with easy access to components and straightforward servicing, meaning you get back up and running much quicker.
Reliability and Usability
Integrated LED indicators show the operating condition of the unit, allowing you to quickly identify any issues without the need for complicated diagnostics. The units are also designed for global use, with multi-voltage capability allowing operation across different regions without modification.

Blue e+S Cooling Units Available from LED Controls
| Article no. | Cooling output L35 L35/50 Hz | Rated operating voltage | Material | Design | Supply includes | Refrigerant |
|---|---|---|---|---|---|---|
| 3178800 | 0.3 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-513A |
| 3178801 | 0.3 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | - | R-513A |
| 3179800 | 0.52 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-513A |
| 3179801 | 0.52 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | - | R-513A |
| 3180800 | 0.78 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-513A |
| 3184800 | 1 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-513A |
| 3184840 | 1 kW | 380 V - 480 V, 2~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-513A |
| 3478800 | 0.3 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-1234yf |
| 3478801 | 0.3 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | - | R-1234yf |
| 3479800 | 0.5 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-1234yf |
| 3479801 | 0.5 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | - | R-1234yf |
| 3480800 | 0.72 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-1234yf |
| 3484800 | 0.92 kW | 110 V - 240 V, 1~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-1234yf |
| 3484840 | 0.92 kW | 380 V - 480 V, 2~, 50 Hz/60 Hz | Sheet steel | wall-mounted | Integral electric condensate evaporation | R-1234yf |
The Rittal Blue e+S range offers a modern solution for enclosure cooling in lower power applications. It combines energy-efficient hybrid cooling technology with smart monitoring and user-friendly design. For businesses looking to improve reliability, reduce energy costs, and simplify installation, the Rittal Blue e+S provides a practical and future-ready option within the Rittal cooling portfolio.
Get in touch to select the perfect Blue e+S cooling unit for your enclosures today!