SK3478.800 Rittal Blue e+ S wall-mounted cooling unit, 300 W, with condensate evaporator, R-1234yf Refrigerant

Why Choose the Rittal SK3478.800 Blue e+ S Wall-Mounted Cooling Unit?

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.

Key Advantages

• Energy-efficient Blue e+ S cooling technology designed to reduce energy consumption and carbon emissions.
• Provides 0.3 kW cooling output under L35/L35 conditions at both 50 Hz and 60 Hz.
• Wide 110–240 V AC operating range supports international machine applications.
• Uses low-GWP R-1234yf refrigerant.
• Integral electric condensate evaporation simplifies condensate management.
• Compact 159 mm depth minimises installation space requirements.
• Smart monitoring available through the compatible Rittal IoT interface.
• User-friendly operation and servicing supported by the Rittal Scan & Service app.

Key Features

• Rittal Blue e+ S wall-mounted cooling unit.
• 0.3 kW cooling output at L35/L35 and 50/60 Hz.
• 0.14 kW cooling output at L35/L50 and 50/60 Hz.
• 110–240 V AC, single-phase, 50/60 Hz multi-voltage supply.
• 366.6 m³/h unimpeded airflow in both the internal and external circuits.
• IP55 internal circuit protection.
• R-1234yf refrigerant with a GWP of 0.5.
• 0.135 kg refrigerant charge.
• Integrated e+ controller with factory setting of 35 °C.
• Integral electric condensate evaporation.
• Sheet steel enclosure finished in RAL 7035 with RAL 7012 louvred grille.
• Fully wired and ready for connection via plug-in terminal strip.

Energy-Efficient Cooling for Compact Industrial Enclosures

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.

Typical Applications

• Compact industrial automation and control cabinets.
• PLC and process control enclosures.
• Machine-building and OEM equipment.
• Power supply and electronic control cabinets.
• Industrial computers and communications equipment.
• Manufacturing and automated production machinery.
• International machinery requiring multi-voltage climate control.
• Applications requiring energy-efficient enclosure cooling with remote monitoring capability.