Heat exchanger Rittal 3374.500 IP55, type: rack cooling equipment, 400 mm width, 145 mm depth, 950 mm height

The Rittal 3374.500 rack cooling equipment is a wall-mountable air-to-water heat exchanger designed for cooling electrical enclosures and server racks in demanding environments. It provides an output range from 375 W to 5,000 W and is certified to IP55, offering protection against dust and water jets. The unit comes in a grey finish and has a compact footprint with dimensions of 400 mm width, 145 mm depth and 950 mm height.

Advantages

The heat exchanger delivers a wide range of cooling outputs suitable for different load levels while maintaining ingress protection IP55 for reliable operation in harsh conditions. Flexible water connection options and convenient mounting choices allow either partial or full internal mounting, simplifying integration into existing rack and enclosure setups. The compact dimensions help save space while providing effective air-to-water heat transfer.

Suitable for

• Cooling server racks and IT cabinets in industrial or commercial environments
• Temperature control of electrical enclosures subject to dust and water exposure
• Applications requiring compact wall-mounted air-to-water heat exchangers

When it may not be suitable

This unit may not be suitable for installations that require passive or air-only cooling solutions, as it is an air-to-water heat exchanger and needs a water circuit. It may also be inappropriate where IP ratings higher than IP55 are mandatory or where specific mounting orientations or custom-sized units are required.

Key specifications

• Cooling output range: 375 W – 5,000 W
• Protection class: IP55
• Type: Air-to-water heat exchanger (wall-mountable)
• Colour: Grey
• Dimensions (W x D x H): 400 mm x 145 mm x 950 mm
• Mounting: Partial or full internal mounting possible; wall-mounting supported
• Water connection: Flexible connection options for integration with water circuit

How to use

Install the unit on the rack or enclosure wall using the provided mounting points or integrate it internally where space permits. Connect the heat exchanger to the building or plant water circuit following local plumbing and safety codes, ensuring correct flow direction and leak-free fittings. Verify electrical and control interfaces, then commission the cooling unit by gradually increasing load and checking temperatures, flow rates and sealing. Routine inspections and maintenance of water connections and heat exchanger surfaces ensure long-term performance.

What to consider before purchase

• Ensure availability of a compatible water circuit and sufficient flow capacity for the required cooling output
• Confirm that IP55 protection level meets site environmental requirements
• Verify physical space and mounting orientation in the intended rack or enclosure
• Check integration requirements for controls and any site-specific plumbing standards

Usage recommendations

For reliable operation, match the cooling capacity to the rack heat load, maintain clean water quality and schedule periodic checks of connections and heat-exchanger surfaces. Use proper sealing and follow Rittal installation guidelines for wall-mounted air-to-water heat exchangers.