RITTAL SK3305540

Rittal SK 3305540 TopTherm Roof-Mounted Cooling Unit

Description

The Rittal SK 3305540 is a high-efficiency TopTherm roof-mounted cooling unit designed to regulate the internal temperature of industrial enclosures. With a total cooling capacity of 1.60 kW (at 50 Hz), it effectively protects sensitive electronic components from overheating, ensuring system reliability and longevity. This unit is suitable for a wide range of applications and features a robust design for dependable operation. Order now from spareparts2day for expert support and fast delivery.

Specifications

• Manufacturer: Rittal
• Model: SK 3305540
• Series: TopTherm
• Total Cooling Capacity (at 50 Hz, L35 L35): 1.60 kW
• Total Cooling Capacity (at 60 Hz, L35 L35): 1.61 kW
• Rated Operating Voltage: 400 V, 3~, 50 Hz / 460 V, 3~, 60 Hz
• Rated Current (max.): 2.5 A (50 Hz) / 2.8 A (60 Hz)
• Refrigerant: R134a
• Refrigerant Charge: 500 g
• Operating Temperature Range: 10 deg C to 55 deg C
• Protection Category (Internal/External): IP 54 / IP 34
• Mounting: Roof-mounted
• Dimensions (W x H x D): 597 x 417 x 475 mm

Label Info

• Part Number: SK 3305540
• Serial Number: 2020K000030346
• Revision: REV R01
• Weight: 42 kg
• Date of Manufacture: 12.03.2020

Application

This cooling unit is ideal for industrial control cabinets, server racks, and other enclosures housing heat-sensitive equipment in sectors such as manufacturing, automation, and telecommunications.

Country of Origin

Made in Italy.

CO2 Impact

Opting for this pre-owned unit over a new one prevents the emission of approximately 1680 kg of CO2, contributing to a more sustainable industrial practice.

Availability

This item is in stock and available for immediate dispatch.

FAQ

What are the required mounting cutout dimensions for the SK 3305540?

The required cutout for this roof-mounted unit is typically 527 mm in width and 402 mm in depth. Always consult the official Rittal installation manual for precise dimensions and tolerances before cutting.

Can this cooling unit be controlled or monitored remotely?

The standard SK 3305540 unit features a basic integral controller. For remote monitoring or control, it typically requires an optional interface or connection to a higher-level control system, such as Rittal’s RiDiag software or a compatible PLC interface.

What is the correct procedure for maintaining the refrigerant R134a?

The Rittal TopTherm unit is a hermetically sealed system. Maintenance, including checking for leaks or recharging the R134a refrigerant, must be performed by a certified refrigeration technician according to F-Gas regulations to ensure safety and environmental compliance.

Last Update: Friday, March 13, 2026

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