Rittal SK 3237.724 Blue e+ fan-and-filter unit, a compact 24 V DC enclosure cooling fan providing 20 m³/h airflow with IP54 filtered protection for industrial control cabinets and automation systems.
£86.86
The Rittal SK 3237.724 is a compact and efficient Blue e+ fan-and-filter unit designed to provide controlled ventilation and heat dissipation for electrical enclosures, control panels and industrial automation equipment. As part of the Rittal Blue e+ enclosure climate control range, it uses diagonal fan technology to provide stable airflow and more even cooling inside the enclosure.
Designed for straightforward installation and maintenance, the SK 3237.724 features optimised detent hooks for fast mounting and a convenient opening mechanism that simplifies filter changes. The complete unit is supplied ready to install with a chopped-fibre filter mat, helping protect enclosure components against airborne contamination while maintaining effective ventilation.
With an unimpeded air throughput of 20 m³/h and a 24 V DC supply, the SK 3237.724 is particularly suitable for compact control cabinets and automation enclosures. Its wall-mounted housing measures just 116.5 × 116.5 × 64.5 mm and provides IP54 protection when used with the supplied filter.
Fan-and-filter units help control internal enclosure temperature by drawing cooler ambient air through a filter and circulating it around heat-generating electrical and electronic components. Effective airflow helps reduce thermal stress, improve component reliability and support stable operation of industrial control equipment.
The Rittal Blue e+ design uses diagonal fan technology for enhanced pressure stability and more consistent ventilation. The diagonal direction of airflow also promotes more even heat dissipation throughout the enclosure, making the SK 3237.724 well suited to compact industrial installations where reliable cooling and efficient use of space are important.
| Manufacturer | Rittal |
|---|---|
| Series | SK Blue e+ |
| Model | SK 3237.724 |
| Product type | Fan-and-filter unit |
| Design | Wall-mounted |
| Air throughput, unimpeded | 20 m³/h |
| Air throughput with corresponding filtered outlet | 15 m³/h |
| Rated operating voltage | 24 V DC |
| Rated power consumption | 1.4 W |
| Maximum rated current | 0.06 A |
| Fan type | Axial fan, DC motor |
| Protection rating | IP54 with chopped-fibre filter |
| Enhanced protection | IP56 with chopped-fibre filter and hose-proof hood |
| NEMA protection | Type 12 with chopped-fibre filter |
| Colour | RAL 7035 |
| Material | Plastic |
| Dimensions (W × H × D) | 116.5 × 116.5 × 64.5 mm |
| Installation depth | 46 mm |
| Mounting cut-out | 92 × 92 mm |
| Operating temperature range | -15 °C to 55 °C |
| Storage temperature range | -30 °C to 70 °C |
| Noise level | 42 dB(A) |
| Recommended pre-fuse | 2 A miniature circuit-breaker or fuse |
| Net weight | 0.21 kg |
| Gross weight | 0.292 kg |
| EAN | 4028177998278 |
The SK 3237.724 is used to provide filtered forced-air ventilation and heat dissipation for electrical enclosures, control cabinets and industrial automation equipment.
The fan-and-filter unit provides an unimpeded airflow of 20 m³/h and approximately 15 m³/h when used with a corresponding filtered outlet.
The Rittal SK 3237.724 operates from a 24 V DC supply and has a rated power consumption of approximately 1.4 W.
The unit provides IP54 protection when fitted with its chopped-fibre filter and can achieve IP56 protection when used with the appropriate hose-proof hood.
The SK 3237.724 requires a mounting cut-out measuring approximately 92 × 92 mm and has an installation depth of 46 mm.
Rittal Blue e+ fan-and-filter units are designed to provide dependable filtered ventilation, straightforward installation and efficient heat dissipation for electrical enclosures and industrial automation systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...