Rittal SK 7990.000 Fan expansion kit - IP 20
Part Number: 7990000
Quick Summary
The Rittal SK 7990.000 Fan expansion kit is a speed-controlled retrofit add-on for 5503.xxx fan modules, enabling compact, reliable enclosure cooling. When upgrading existing cabinets, downtime and airflow variability are common pain points; this kit is designed to minimize both. It carries an IP 20 protection rating and aligns with ETIM 9 EC000320 and ECLASS 8.0 27180716 data standards, ensuring procurement and maintenance teams can integrate it smoothly. With a complete pre-assembled package and 24 V DC operation, it supports fast installation and consistent performance in industrial environments. This solution also complements enclosure cooling strategies, offering predictable airflow and energy-efficient operation.
Product Information
Extended Description
7990000 Rittal: SK Fan expansion kit, speed-controlled, 192 m³/h unimpeded airflow, for fan modules, WHD:119x25x119 mm, RAL 9005
Article number
SK 7990.000
Design
Without roof plate
Product description
Fan expansion kit with integral speed control for installing in fan modules 5503.xxx.
Benefits
Complete, ready-to-connect solution
Material
Plastic
Colour
RAL 9005
Supply includes
Fan | Protective grille | Assembly parts | Installation and Short User's Guide
Air throughput (at operating point)
150 m³/h
Rated operating voltage
24 V (DC)
Rated current max.
At 50 Hz: 0.32 A | At 60 Hz: 0.32 A
Dimensions
Width: 119 mm | Height: 25 mm | Depth: 119 mm
IP protection category to IEC 60 529
IP 20
Speed
100 %
Note
Reduction in the specified air throughput to 150 m³/h at 25 Pa counterpressure
Noise level (at operating point)
44 dB(A)
Operating temperature range
5 °C...55 °C
Power consumption
7.7 W
Weight/pack
0.3 kg
Packs of
1 pc(s).
Customs tariff number
84149000
EAN
4028177966345
ETIM 9
EC000320
ECLASS 8.0
27180716
Product description
SK Fan expansion kit, speed-controlled, 192 m³/h unimpeded airflow, for fan modules, WHD:119x25x119 mm, RAL 9005
The SK 7990.000 Fan expansion kit provides integrated speed control that maintains stable airflow of 150 m³/h at the operating point, while accommodating counterpressure changes in wired Rittal enclosures. This translates to reliable cooling performance and reduced risk of overheating in cabinets housing sensitive electronics, enabling predictable system behavior during changes in load. The complete, ready-to-connect package minimizes field wiring and commissioning time, delivering a faster retrofit with fewer assembly errors and lower total install cost. Its compact form factor (WHD 119x25x119 mm) and IP 20 protection ensure compatibility with dense rack layouts and harsh industrial environments, supporting long-term reliability without special enclosure considerations. With only 7.7 W power consumption and a 44 dB(A) noise level at the operating point, users realize energy savings and a quieter work environment. The kit ships with a fan, protective grille, and installation parts, reducing the risk of missing components during retrofits and ensuring smooth installation into 5503.xxx modules. Typical use cases include retrofitting existing fan modules in 19" enclosures to achieve controlled cooling without large overhauls, while maintaining color consistency (RAL 9005) and standard procurement classifications for easy asset management.
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FAQs
The SK 7990.000 is designed to retrofit Rittal fan modules 5503.010, 5503.020 and 5503.025. It arrives as a complete package with a protective grille and installation parts, and fits the WHD 119x25x119 mm footprint. With a 24 V DC supply and 0.32 A current draw, it integrates smoothly into existing enclosures, ensuring a fast, risk-averse retrofit.
Speed control maintains airflow at the operating point of 150 m³/h while adapting to counterpressure changes, reducing the risk of under- or over-cooling. Power consumption stays around 7.7 W, and noise remains at about 44 dB(A). This combination yields stable cooling, predictable temperatures, and lower energy costs over the retrofit lifecycle.
Yes. The compact form factor (WHD 119x25x119 mm) and IP 20 rating enable installation in dense enclosures without bulky add-ons. The kit includes a fan, grille, and mounting hardware, making it suitable for retrofits in 5503.xxx-based cooling paths where space is at a premium and aesthetics (RAL 9005) matter for service access and maintenance.
The kit specifies IP 20 protection and references ETIM 9 EC000320 and ECLASS 8.0 27180716, supporting consistent procurement data and compatibility with data-driven maintenance workflows. While CE markings may apply to integrated products, this data-focused alignment helps with part cataloging, BOM integrity, and cross-system compliance.
ROI comes from reduced retrofit downtime, fewer wiring errors, and energy efficiency from the 7.7 W, 24 V DC motor. The complete, ready-to-connect design minimizes field labor and commissioning time, while the durable IP 20-rated plastics and protective grille improve long-term reliability. Overall, expect faster project completion and lower lifecycle maintenance costs.