Rittal SK3478.800 Blue e+ S wall-mounted cooling unit providing 300 W cooling output with 110–240 V AC multi-voltage operation, integral condensate evaporation and low-GWP R-1234yf refrigerant.
The Rittal SK3478.800 is a compact Blue e+ S wall-mounted enclosure cooling unit engineered for energy-efficient thermal management of industrial electrical and automation enclosures. Delivering 0.3 kW cooling output, it combines Rittal's proven Blue e+ technology with a slim design measuring just 159 mm deep, making it particularly suitable where installation space is limited.
Blue e+ S technology combines intelligent cooling with smart monitoring capabilities to help reduce energy consumption and the carbon footprint of machinery and systems. Multi-voltage operation from 110–240 V AC, single-phase, 50/60 Hz supports international machine-building applications, while compatibility with Rittal's IoT interface enables remote monitoring of operating data, status information and system messages.
The SK3478.800 uses the low-GWP R-1234yf refrigerant and incorporates integral electric condensate evaporation. With a robust sheet steel housing, IP55 protection for the internal circuit, an e+ controller and compact dimensions of 300 × 570 × 159 mm, it provides a modern cooling solution for control cabinets containing PLCs, power supplies, drives and other temperature-sensitive electronics.
Modern PLCs, power supplies, industrial computers and other electronic devices can generate significant heat even when installed in relatively compact control cabinets. The Rittal SK3478.800 combines active refrigeration with Blue e+ technology to remove this unwanted heat while maintaining a closed internal air circuit, helping protect sensitive equipment from excessive temperatures and contaminated ambient air.
Its wide multi-voltage input, compact footprint and smart connectivity make the SK3478.800 particularly suitable for internationally deployed machinery and automation systems. Optional connection to the Rittal IoT interface allows device data, operating statuses and system messages to be monitored remotely, helping improve machine availability and simplify preventative maintenance.
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| Device Type | Wall / door-mounted cooling unit | |
|---|---|---|
| Refrigerant Type | R123 | |
| Coil / Supply Voltage | 110–240 V AC, 1-phase | |
| Voltage | 110-240 V AC | |
| Cooling Output (W) | 300 W | |
| HS Code | 84158200 | |
| Manufacturer | Rittal | |
| Series | Blue e+ S | |
| Model | SK3478.800 | |
| Article number | SK 3478.800 | |
| Product type | Wall-mounted enclosure cooling unit | |
| Device type | Air/air | |
| Cooling output L35/L35, 50 Hz | 0.3 kW | |
| Cooling output L35/L35, 60 Hz | 0.3 kW | |
| Cooling output L35/L50, 50 Hz | 0.14 kW | |
| Cooling output L35/L50, 60 Hz | 0.14 kW | |
| Rated operating voltage | 110–240 V AC | |
| Phases | 1-phase | |
| Frequency | 50 / 60 Hz | |
| Rated output | 0.22 kW | |
| Rated power L35/L35, 50 Hz | 0.17 kW | |
| Rated power L35/L35, 60 Hz | 0.17 kW | |
| Rated power L35/L50, 50 Hz | 0.19 kW | |
| Rated power L35/L50, 60 Hz | 0.19 kW | |
| External air throughput | 366.6 m³/h | |
| Internal air throughput | 366.6 m³/h | |
| EER L35/L35, 50 Hz | 1.8 | |
| EER L35/L35, 60 Hz | 1.8 | |
| Internal circuit protection | IP55 | |
| NEMA rating | Type 12 / Type 3R | |
| Enclosure colour | RAL 7035 | |
| Louvred grille colour | RAL 7012 | |
| Refrigerant | R-1234yf | |
| Refrigerant charge | 0.135 kg | |
| Global warming potential | 0.5 | |
| Controller | e+ controller | |
| Factory temperature setting | 35 °C | |
| Temperature setting range | 20–50 °C | |
| Operating temperature range | -20–60 °C | |
| Storage temperature range | -40–70 °C | |
| Maximum permissible operating pressure | 32 bar | |
| Dimensions (W × H × D) | 300 × 570 × 159 mm | |
| Weight | approx. 13 kg | |
| Supply includes | Assembly parts, fully wired plug-in terminal connection and integral electric condensate evaporation |
The SK3478.800 provides 0.3 kW cooling output under L35/L35 conditions at both 50 Hz and 60 Hz. Under L35/L50 conditions, the cooling output is 0.14 kW.
The Blue e+ S cooling unit has multi-voltage capability and operates from 110–240 V AC, single-phase, at 50/60 Hz, supporting use in internationally deployed machinery and systems.
The SK3478.800 uses R-1234yf refrigerant, with a refrigerant charge of 0.135 kg and a global warming potential of just 0.5.
Yes. The cooling unit is supplied with integral electric condensate evaporation, helping manage condensate produced during cooling operation.
Yes. The Blue e+ S generation supports remote monitoring and networking using the compatible Rittal IoT interface SK3124.300, enabling access to device data, operating statuses and system messages.
Rittal Blue e+ S cooling units combine energy-efficient enclosure climate control, low-GWP refrigerant technology, multi-voltage capability and intelligent connectivity to help improve machine availability while reducing the energy requirements of industrial cooling.
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