Rittal SK 5503.010 Roof-Mounted Fan Unit with 2 Fans, Max 3 Fans, 230 V AC, 900 m³/h, RAL 7035

Data center technicians and enclosure builders often need to expel hot air from the top of a server rack or network cabinet. The Rittal SK 5503.010 roof-mounted fan unit fits directly onto the roof of compatible enclosures and includes two fans, with space for a third if additional airflow is required. With an air throughput of 900 m³/h at 50 Hz, it helps maintain safe operating temperatures for installed equipment.

Key specifications

• Product type: Roof-mounted fan unit
• Number of fans included: 2
• Maximum fan capacity: 3
• Air throughput (50 Hz, 2 fans): 900 m³/h
• Air throughput (60 Hz, 2 fans): 1000 m³/h
• Rated operating voltage: 230 V AC
• Frequency: 50/60 Hz
• Rated operating current (50 Hz): 1.0 A
• Rated operating current (60 Hz): 1.1 A
• Power consumption (50 Hz): 220 W
• Power consumption (60 Hz): 250 W
• Noise level (50 Hz): 66 dB(A)
• Noise level (60 Hz): 69 dB(A)
• Material: Sheet steel
• Colour: RAL 7035 (Light Grey)
• Protection category: IP54
• Operating temperature range: -10 °C to +55 °C
• Connection type: Terminal strip
• Mounting type: Roof mounting

Why choose it

This fan unit is built from sheet steel and finished in light grey RAL 7035 to match standard Rittal enclosures. The IP54 protection category means it is protected against dust and splashing water, making it suitable for industrial environments. The terminal strip connection simplifies electrical installation.

Ideal use cases

• Active heat extraction from the roof of server and network racks
• Cooling for enclosures in factory floors or control rooms
• Retrofitting existing Rittal enclosures with additional ventilation

Good to know

The unit operates on 230 V AC and can run on both 50 Hz and 60 Hz supplies. It includes two fans and can accommodate a third fan (not included) to increase airflow. The noise level is 66 dB(A) at 50 Hz and 69 dB(A) at 60 Hz, which should be considered for noise-sensitive areas.