Rack cooling unit Rittal 3366.545, built-in display, cooling capacity 4000 W, 400/460 V, 50/60 Hz

Rittal 3366.545 is a rack cooling unit with a built-in display designed for active temperature control inside server racks and electrical enclosures. The unit delivers up to 4000 W of cooling capacity and operates on 400/460 V at 50/60 Hz, offering robust performance for heat-sensitive components. Constructed from steel and stainless steel with a grey finish, it is intended for wall- or rack-mounted installation where concentrated cooling and reliable control are required.

Advantages

This cooling unit provides high cooling capacity suitable for demanding enclosures while maintaining energy-efficient operation in its class. The integrated display simplifies monitoring and adjustment of setpoints and operating modes. Built with corrosion-resistant materials and designed for industrial environments, the unit supports continuous operation and stable temperature regulation. Compatibility with Blue e system characteristics allows integration into standardized cooling families for uniform maintenance and parts handling.

Suitable for

• Server racks and data cabinets that require up to 4000 W of active cooling
• Electrical control cabinets and switchgear with concentrated heat loads
• Industrial environments where a wall- or rack-mounted cooling solution is needed
• Applications needing a visible, built-in display for local monitoring and control

When it may not be suitable

This unit is designed for fixed electrical installations and requires a 400/460 V, 50/60 Hz supply; it is not suitable where only low-voltage single-phase supplies are available. For very small enclosures or locations with minimal heat dissipation needs, the 4000 W capacity may be excessive both in size and energy use.

Key specifications

• Cooling capacity: up to 4000 W
• Supply voltage: 400/460 V (three-phase), 50/60 Hz
• Nominal current: 1.9 A
• Construction materials: steel / stainless steel
• Finish: grey
• Mounting: rack or wall-mounted format
• Integrated user display for local monitoring and control
• Energy-efficient design; includes electrical condensate evaporator in higher output ranges

How to use

Install the cooling unit in accordance with manufacturer mounting guidelines for rack or wall application, ensuring correct airflow paths and sufficient clearance. Connect to the specified 400/460 V, 50/60 Hz supply and configure the built-in display to set desired temperature setpoints and operating modes. Regularly check condensate handling and service access points; for models with an electrical condensate evaporator verify operation during commissioning. Follow site safety procedures and ensure earthing and electrical protection are provided by a qualified technician.

What to consider before purchase

• Verify available supply voltage and electrical infrastructure (400/460 V, 50/60 Hz)
• Confirm enclosure dimensions and mounting type (wall or rack) to ensure fit and correct airflow
• Assess required cooling capacity versus typical heat load to avoid oversizing
• Plan for condensate management and maintenance access

Usage recommendations

For reliable operation, match the unit's 4000 W capacity to measured enclosure heat loads, maintain clear intake and exhaust paths, and schedule periodic inspections of filters and condensate systems. Consider integration with Blue e IoT interfaces or building management systems where remote monitoring and analytics are required.