Rack cooling unit Rittal 3378.380 350 W, 230 V, 50/60 Hz, Black/White

Rittal 3378.380 rack cooling unit is a 350 W, 230 V, 50/60 Hz air/water heat exchanger designed for mounting in VX25 bayed enclosures and server cabinets. The unit accepts an input water temperature from 7 °C and is specified with a maximum cooling capability in the LCP rack industry package up to 9.5 kW when combined with the matching Liquid Cooling Package (LCP). It is available in black or white finishes and is intended for active temperature regulation inside industrial enclosures with depths of 600 or 800 mm and heights of 2,000 mm. The unit offers flexible water connection options top or bottom and provides air outlet configurations that allow heat discharge of 5 kW per side or 10 kW on one side.

Advantages

The Rittal 3378.380 integrates a ready-to-connect cooling circuit with factory wiring to a terminal strip, reducing installation time and on-site electrical work. A front door with an integrated display enables direct monitoring of operating status and basic adjustments. The design fits VX25 enclosures and supports both 600 mm and 800 mm depths, ensuring compatibility with common rack layouts. Flexible water connection points and selectable air outlet configurations give installation versatility for different cabinet arrangements and heat-load distributions.

Suitable for

• Industrial control cabinets and server racks requiring active enclosure cooling.
• VX25 bayed enclosures 2,000 mm high and 600 or 800 mm deep.
• Applications where liquid-to-air heat exchange with external chilled water is used.
• Environments needing front-panel status display and factory-wired connections for faster commissioning.

When it may not be suitable

This unit is intended to be used as part of a liquid-cooled system and requires an appropriate chilled water supply; it is not a self-contained refrigerant-based air conditioner. For small enclosures with very low heat loads or where no chilled water infrastructure exists, a direct air-cooled or self-contained fan-coil solution may be more appropriate. It is also sized and shaped specifically for VX25 2,000 mm high enclosures and may not fit non-standard cabinet dimensions.

Key specifications

• Input power: 350 W
• Supply voltage and frequency: 230 V, 50/60 Hz
• Minimum input water temperature: 7 °C
• Maximum listed cooling capacity with LCP configuration: up to 9.5 kW
• Compatible enclosure depths: 600 mm or 800 mm
• Compatible enclosure height: 2,000 mm
• Air outlet configuration: 5 kW per side or 10 kW on one side
• Colour options: black or white
• Front door with display; factory-wired to terminal strip

How to use

Install the cooling unit in a compatible VX25 bayed enclosure of 2,000 mm height and either 600 mm or 800 mm depth following Rittal mounting instructions. Connect chilled water to the chosen top or bottom water connections and ensure system piping meets local hydraulic requirements. Make electrical connections to the terminal strip per the wiring diagram provided in the documentation and verify supply voltage is 230 V, 50/60 Hz. Power up the unit, monitor the front-panel display for operating parameters, and adjust setpoints or alarm thresholds as required within the limits described in the manufacturer documentation. Commission the broader liquid cooling package (LCP) to confirm the combined cooling capacity and system controls.

What to consider before purchase

• Availability of a chilled water supply at or below 7 °C and appropriate hydraulic connections.
• Compatibility with VX25 enclosure dimensions (2,000 mm height; 600 mm or 800 mm depth).
• Required cooling capacity for your heat load versus the stated maximum capacity in LCP configuration.
• Preferred air outlet configuration and space for cabling and piping (top or bottom water connections).
• Colour choice (black or white) for cabinet appearance and site standards.

Usage recommendations

For reliable operation, integrate the unit into a complete Liquid Cooling Package and ensure periodic inspection of water quality, fittings and control settings. Follow the manufacturer’s commissioning and maintenance schedule to maintain thermal performance and to prevent condensation risks when operating near minimum water temperatures.