SK3375.504 Rittal Air/water heat exchanger Wall-mounted 4.5 kW 230 V 1~ 50/60 Hz

Why Choose the Rittal SK3375.504 Air/Water Heat Exchanger?

The Rittal SK3375.504 is a high-performance wall-mounted air/water heat exchanger designed to provide effective cooling for industrial electrical enclosures, automation cabinets and machinery control systems. With a cooling output of approximately 4.5 kW, it is well suited to cabinets containing variable speed drives, power electronics and other equipment that generates substantial heat during operation.

Rather than exchanging enclosure air directly with the surrounding environment, the SK3375.504 uses a closed internal air circuit and transfers unwanted heat to a connected cooling-water supply. This cooling principle helps maintain enclosure protection while reducing exposure of sensitive components to dust, oil mist and other airborne contaminants commonly found in industrial environments.

Operating from a 230 V AC single-phase 50/60 Hz supply, the SK3375.504 combines IP55 protection with a wall-mounted format and compact 220 mm depth. It provides an efficient thermal management solution for factories and machinery installations where centralised chilled water or recooling infrastructure is available.

Key Advantages

• High-capacity 4.5 kW air/water enclosure cooling.
• 230 V AC single-phase 50/60 Hz operation.
• IP55 protection for demanding industrial enclosure applications.
• Closed internal air circuit helps prevent contaminated ambient air entering the enclosure.
• Water-based heat transfer provides efficient removal of substantial enclosure heat loads.
• Wall-mounted configuration preserves valuable internal cabinet space.
• Compact 220 mm depth supports space-efficient installation.
• Ideal for facilities equipped with central cooling-water or recooling systems.

Key Features

• Rittal wall-mounted air/water heat exchanger.
• Cooling output of approximately 4.5 kW.
• 230 V AC, single-phase, 50/60 Hz operating supply.
• IP55 protection category.
• Closed-loop internal enclosure air circulation.
• Water-based heat transfer for efficient thermal management.
• Designed for high thermal loads in industrial control cabinets.
• Suitable for central chilled-water and recooling installations.
• Wall-mounted design for straightforward enclosure integration.
• 220 mm installation depth.

Reliable High-Capacity Water Cooling for Industrial Enclosures

Variable speed drives, PLC systems, power converters and other electronic equipment can create substantial thermal loads inside sealed electrical cabinets. The Rittal SK3375.504 circulates the enclosure air through its heat exchanger and transfers unwanted thermal energy to the connected cooling-water circuit, helping maintain stable operating temperatures for sensitive equipment.

The closed-loop cooling principle is particularly beneficial in manufacturing environments where conventional fan ventilation could introduce dust, oil mist or other contaminants into the enclosure. When integrated with an appropriate cooling-water system, the SK3375.504 provides efficient heat removal without requiring an individual compressor-based refrigeration circuit at the cabinet.

Typical Applications

• Industrial automation and control cabinets.
• Variable speed drive and motor control enclosures.
• PLC and process control systems.
• Power electronics and converter cabinets.
• Machine tools and CNC machinery.
• Manufacturing and automated production lines.
• Machine-building and OEM equipment.
• Facilities with central chilled-water or recooling systems.