Fan kit Rittal SK 3240.708 — built-in AC fan, airflow 157 m³/h, plastic housing, black

Rittal SK 3240.708 is a built-in AC fan kit designed to ventilate electrical enclosures and control cabinets. The compact unit features a black plastic housing and provides an airflow of 157 m³/h. Supplied as a single complete fan assembly ready for tool-free mounting, this fan kit helps reduce internal temperatures and supports continuous operation of electrical and electronic components in industrial environments.

Advantages

The fan kit delivers a defined airflow of 157 m³/h through a robust plastic housing rated for typical enclosure use. Installation is simplified by the complete unit format allowing tool-free mounting on compatible surfaces. The AC-driven design is suitable for standard mains-powered ventilation applications and the black housing offers a neutral appearance that integrates with most enclosures.

Suitable for

• Ventilation of electrical enclosures and control panels
• Cooling of industrial cabinets housing PLCs, drives and power supplies
• Replacement or upgrade of existing enclosure fans when 157 m³/h airflow is required

When it may not be suitable

This fan kit is intended for general enclosure ventilation and may not be suitable where precise airflow control, low-noise operation, or specialized filtration is required. It is also not intended for direct cooling of sensitive components that demand controlled temperature or humidity environments beyond basic ventilation.

Key specifications

• Airflow: 157 m³/h
• Power type: AC (mains-powered)
• Housing material: plastic
• Housing colour: black
• Protection category: IP54 (standard enclosure use)
• Mounting: tool-free complete unit for surface mounting

How to use

Mount the fan kit on a compatible enclosure surface using the designed tool-free fastening method. Ensure correct orientation for airflow through the cabinet and maintain appropriate clearances around the inlet and outlet. Connect the fan to the mains supply following local electrical regulations and verify correct voltage and wiring before power-up. Regularly inspect the unit and the surrounding area for dust build-up and clean or replace any external filters if used.

What to consider before purchase

• Confirm that 157 m³/h airflow meets the cooling needs of your enclosure and equipment.
• Verify compatibility of the fan kit dimensions and mounting style with your cabinet cut-out or surface.
• Check required mains voltage and wiring provisions at the installation site.
• Assess ambient conditions — IP54 protection is suitable for general industrial environments but not for heavy washdown or immersion.

Usage recommendations

For effective enclosure ventilation: position the fan to create a clear airflow path through the cabinet, combine with passive vents or additional fans as needed for balanced intake and exhaust, and schedule periodic cleaning to maintain the specified 157 m³/h performance.