Rittal SK3239.708 Blue e+ fan-and-filter unit providing 110/125 m³/h airflow from a 230 V single-phase 50/60 Hz supply in a compact 204 x 204 x 105 mm RAL 9005 housing.
£154.74
The Rittal SK3239.708 is a high-performance Blue e+ fan-and-filter unit designed to provide reliable filtered ventilation for electrical enclosures, control cabinets and industrial automation equipment. Using Rittal's diagonal fan technology, the unit offers improved pressure stability and more consistent airflow, helping dissipate heat evenly throughout the enclosure.
Designed for a 230 V single-phase, 50/60 Hz supply, the SK3239.708 delivers an unimpeded airflow of 110 m³/h at 50 Hz and 125 m³/h at 60 Hz with the supplied pleated filter. The fan-and-filter unit is supplied complete and ready to install, with tool-free assembly and optimised detent hooks helping simplify installation into enclosure surfaces.
Measuring 204 × 204 × 105 mm and finished in RAL 9005 black, the SK3239.708 provides IP54 protection as standard with either a pleated or chopped-fibre filter. Its easily accessible louvred grille simplifies filter replacement, making the unit a practical cooling solution for industrial control panels requiring dependable airflow and straightforward maintenance.
Fan-and-filter units provide an efficient method of removing excess heat from electrical enclosures when the surrounding air is sufficiently cool and clean. The Rittal SK3239.708 draws filtered ambient air into the enclosure, helping maintain suitable operating temperatures for PLCs, drives, power supplies and other heat-generating electrical components.
Rittal's diagonal fan technology improves pressure stability compared with conventional ventilation arrangements, helping maintain more consistent airflow when installed in an enclosure. Combined with the pleated filter supplied as standard, the Blue e+ design provides effective filtration and high airflow while allowing quick filter replacement during routine maintenance.
| Manufacturer | Rittal |
|---|---|
| Series | SK Blue e+ |
| Model | SK3239.708 |
| Article number | 3239708 |
| Product type | Fan-and-filter unit |
| Design | Wall-mounted |
| Rated operating voltage | 230 V AC, 1~ |
| Frequency | 50/60 Hz |
| Airflow with pleated filter | 110 m³/h at 50 Hz / 125 m³/h at 60 Hz |
| Airflow with chopped-fibre filter | 100 m³/h at 50 Hz / 115 m³/h at 60 Hz |
| Airflow with matching outlet filter and pleated filter | 92 m³/h at 50 Hz / 104 m³/h at 60 Hz |
| Airflow with matching outlet filter and chopped-fibre filter | 75 m³/h at 50 Hz / 86 m³/h at 60 Hz |
| Power consumption | 14.7 W at 50 Hz / 16.5 W at 60 Hz |
| Rated current | 0.10 A at 50 Hz / 0.12 A at 60 Hz |
| Fan type | Axial fan, shaded-pole motor |
| Fan bearing | Ball bearing |
| Protection rating | IP54 with pleated or chopped-fibre filter |
| NEMA protection | Type 12 with pleated or chopped-fibre filter |
| Pre-fuse | 2 A |
| Operating temperature | -15 to +55 °C |
| Storage temperature | -30 to +70 °C |
| Noise level | 51 dB(A) at 50 Hz / 54 dB(A) at 60 Hz |
| Width | 204 mm |
| Height | 204 mm |
| Depth | 105 mm |
| Installation depth | 84 mm |
| Mounting cut-out | 177 × 177 mm |
| Material | Plastic |
| Colour | RAL 9005 black |
| Net weight | 0.92 kg |
| Pack quantity | 1 piece |
| EAN | 4028177998209 |
The SK3239.708 provides filtered forced-air ventilation for electrical enclosures and control cabinets, helping remove excess heat while reducing the ingress of airborne contamination.
With its supplied pleated filter, the unit provides an unimpeded airflow of 110 m³/h at 50 Hz and 125 m³/h at 60 Hz.
The fan-and-filter unit operates from a 230 V AC single-phase supply at 50/60 Hz.
The unit provides IP54 protection with its pleated or chopped-fibre filter. Protection can be increased to IP55 with a pleated filter and absorber mat, or IP56 when used with a compatible hose-proof hood.
The Rittal SK3239.708 requires a 177 × 177 mm mounting cut-out and is designed for fast, tool-free installation into suitable enclosure surfaces.
Rittal Blue e+ fan-and-filter units combine dependable filtered ventilation, straightforward installation and efficient enclosure cooling, making them a practical choice for control panels, machinery and industrial automation systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...