SK3328.504 Rittal Blue e cooling unit Wall-mounted NEMA 4X 2.2 kW 230 V 1~ 50/60 Hz Stainless steel

Why Choose the Rittal SK3328.504 Blue e Wall-Mounted Cooling Unit?

The Rittal SK3328.504 is an energy-efficient Blue e wall-mounted enclosure cooling unit designed to maintain stable temperatures inside industrial control cabinets, electrical enclosures and automation systems. Part of the proven Rittal Blue e cooling range, it combines high cooling performance with robust stainless steel construction and NEMA 4X protection for demanding industrial environments.

This cooling unit incorporates Rittal’s e-Comfort controller as standard, providing precise temperature regulation and straightforward monitoring. An integrated electric condensate evaporation system helps manage moisture automatically, while the condenser incorporates a hydrophobic RiNano coating designed to reduce contamination and support reliable long-term thermal performance.

With a nominal cooling capacity of approximately 2.2 kW, a 230 V single-phase 50/60 Hz supply and a corrosion-resistant AISI 316L stainless steel housing, the SK3328.504 is well suited to control panels operating in harsh, hygienic, marine and industrial environments.

Key Advantages

• Energy-efficient Blue e enclosure cooling technology.
• Approximately 2.2 kW cooling capacity for medium-to-large industrial enclosures.
• NEMA 4X construction for demanding and corrosive environments.
• Manufactured from stainless steel 1.4404 / AISI 316L.
• Integrated e-Comfort electronic temperature controller.
• Integral electric condensate evaporation reduces external drainage requirements.
• RiNano-coated condenser supports reliable operation and reduced contamination.
• Can be connected to Rittal IoT infrastructure using a compatible Blue e IoT adaptor.

Key Features

• Rittal Blue e wall-mounted cooling unit.
• 230 V AC, single-phase, 50/60 Hz operating supply.
• Total cooling output of approximately 2.1–2.39 kW at L35/L35, depending on supply frequency.
• 980 m³/h external air throughput.
• 980 m³/h internal air throughput.
• IP34 external circuit and IP55 internal circuit.
• NEMA 4X protection category.
• Integral electric condensate evaporation.
• Hydrophobic RiNano-coated condenser.
• Fully wired and ready for connection via plug-in terminal strip.

Reliable Thermal Management for Industrial Enclosures

Industrial electrical equipment can generate significant amounts of heat, particularly where drives, power electronics, PLCs and switching devices are installed inside sealed cabinets. The Rittal SK3328.504 removes excess heat from the enclosure while maintaining separation between the internal and external air circuits, helping protect sensitive components from contamination and excessive temperatures.

Its stainless steel construction and NEMA 4X rating make the unit particularly suitable for installations where corrosion resistance, wash-down capability or exposure to demanding environmental conditions is important. The integrated e-Comfort controller helps maintain a consistent enclosure temperature while supporting efficient and reliable operation.

Typical Applications

• Industrial automation and control cabinets.
• PLC and electrical distribution enclosures.
• Variable speed drive and power electronics cabinets.
• Food and beverage processing environments.
• Pharmaceutical and hygienic production areas.
• Marine and offshore control systems.
• Manufacturing and process machinery.
• Corrosive or demanding industrial environments.