Cooling Unit Rittal SK 3189.340 Built-in display, 4900 W, 380–480 V, 50/60 Hz, Aluminium housing, Grey

The Rittal SK 3189.340 built-in cooling unit is designed for conditioned enclosures and electrical cabinets that require dependable thermal management. With a rated cooling capacity of 4900 W and a compact aluminium grey housing, the unit operates on 380–480 V at 50/60 Hz and includes an integrated display for status readout and basic control functions. The cooling unit is intended to mount into cabinet walls and supports continuous removal of heat from control panels, switchgear and other sensitive electronic equipment.

Advantages

The integrated display provides clear status information and simplifies on-site adjustments. A robust aluminium housing offers corrosion resistance and mechanical protection while keeping the unit lightweight for easier installation. The wide input voltage range (380–480 V) and support for both 50 and 60 Hz mains make the unit compatible with diverse industrial power systems. The 4900 W cooling capacity handles substantial heat loads typical in medium-to-large electrical cabinets.

Suitable for

• Air-conditioned electrical enclosures and switchgear in industrial environments
• Control panels with moderate to high internal heat dissipation
• Applications requiring wall-mounted or built-in cabinet cooling
• Sites with 380–480 V three-phase power at 50/60 Hz

When it may not be suitable

This cooling unit is intended for built-in cabinet installation and may not suit free-standing or portable cooling needs. It is designed for electrical enclosures and may be oversized for very small cabinets with minimal heat dissipation.

Key specifications

• Cooling capacity: 4900 W
• Nominal supply voltage: 380–480 V
• Frequency: 50/60 Hz
• Housing material: aluminium
• Housing colour: grey
• Mounting type: built-in / wall-mounted for cabinets
• Interface: integrated display for status and control

How to use

Install the cooling unit into the designated cut-out of the electrical cabinet according to the cabinet manufacturer’s mounting instructions and local electrical regulations. Connect the unit to the three-phase supply within the specified 380–480 V range and verify correct phasing and protective earthing. Use the integrated display to configure basic operating parameters and monitor status. Ensure airflow paths inside the cabinet are unobstructed and maintain appropriate clearances for intake and exhaust. Regularly inspect filters (if fitted) and cooling surfaces and follow scheduled maintenance to preserve performance.

What to consider before purchase

• Confirm cabinet cut-out dimensions and mounting compatibility for a built-in unit
• Verify available supply voltage and frequency (380–480 V, 50/60 Hz)
• Assess cabinet internal heat load to ensure 4900 W capacity meets cooling requirements
• Check required ingress protection and environmental conditions for outdoor or harsh locations

Usage recommendations

For reliable operation, allow sufficient ventilation space, follow the manufacturer’s electrical connection guidelines, and schedule periodic inspections of filters and heat exchange surfaces. Use the integrated display for monitoring and timely adjustment of setpoints to maintain stable internal temperatures.