SK3387.640 Rittal Blue e cooling unit Wall-mounted 3.8 kW 400/460 V 3~ 50/60 Hz Stainless steel

Why Choose the Rittal SK3387.640 Blue e Roof-Mounted Cooling Unit?

The Rittal SK3387.640 is a high-performance TopTherm Blue e roof-mounted enclosure cooling unit designed to provide reliable climate control for electrical and industrial control enclosures. As part of the proven Rittal Blue e cooling unit series, it combines efficient refrigeration technology with an integrated e-Comfort controller and electrical condensate evaporation.

Designed for demanding industrial environments, the SK3387.640 features a robust stainless steel 1.4301 (AISI 304) enclosure that provides enhanced durability and corrosion resistance. Its roof-mounted configuration preserves valuable enclosure side-wall space, while the hydrophobic RiNano-coated condenser supports efficient operation and reduced maintenance requirements.

With a total cooling output of 3.8 kW at 50 Hz and up to 4 kW at 60 Hz, together with a 400 V three-phase 50 Hz or 460 V three-phase 60 Hz supply, the SK3387.640 is well suited to industrial control panels, automation systems and machinery containing heat-generating electrical and electronic components.

Key Advantages

• High-capacity roof-mounted enclosure cooling unit for industrial applications.
• 3.8 kW cooling output at L35 L35 / 50 Hz and 4 kW at 60 Hz.
• 400 V, 3-phase, 50 Hz / 460 V, 3-phase, 60 Hz operating supply.
• Durable stainless steel 1.4301 (AISI 304) construction.
• Integrated e-Comfort controller for precise enclosure temperature regulation.
• Integral electrical condensate evaporation simplifies condensate management.
• Hydrophobic RiNano-coated condenser supports efficient, low-maintenance operation.
• Can be linked to the Rittal IoT Interface using a compatible Blue e IoT adaptor.

Key Features

• Rittal TopTherm Blue e cooling unit series.
• 3.8 kW total cooling output at 50 Hz.
• 4 kW total cooling output at 60 Hz.
• 400 V, 3~, 50 Hz / 460 V, 3~, 60 Hz rated operating voltage.
• 3,870 m³/h external and 1,420 m³/h internal unimpeded air flow.
• IP34 external circuit and IP54 internal circuit protection to IEC 60529.
• Integrated e-Comfort controller for enclosure temperature management.
• Stainless steel construction for demanding industrial environments.
• Hydrophobic RiNano coating on the condenser.
• Fully wired ready for connection using a plug-in terminal strip.

Reliable Climate Control for Industrial Enclosures

Industrial electrical enclosures often contain PLCs, variable frequency drives, power supplies and other components that generate significant heat during operation. The Rittal SK3387.640 removes excess heat from the enclosure and helps maintain controlled internal temperatures, protecting sensitive equipment from thermal stress and supporting dependable machine operation.

The Blue e design combines powerful refrigeration with intelligent temperature control, electrical condensate evaporation and separate internal and external air circuits. Its stainless steel construction makes the SK3387.640 particularly suitable for industrial installations where durability and corrosion resistance are important, while roof mounting keeps enclosure side walls available for other equipment and accessories.

Typical Applications

• Industrial electrical and automation control enclosures.
• PLC, drive and motor-control cabinets.
• Food, beverage and process-industry machinery where stainless steel construction is advantageous.
• Manufacturing and production machinery.
• Machine-tool control systems.
• Process automation and instrumentation panels.
• OEM machinery and factory automation systems.