Finder 7F.31.9.024.1020 – 7F Series Filter Fans – For outdoor use – Reverse flow

Why Choose the Finder 7F.31.9.024.1020 Outdoor Reverse Flow Filter Fan?

The Finder 7F.31.9.024.1020 is a compact, energy-efficient 24 V DC outdoor reverse flow filter fan designed to provide reliable exhaust ventilation for industrial electrical cabinets, automation control panels and electronic equipment enclosures. Part of the Finder 7F Series, this Size 1 fan is particularly suitable for applications requiring dependable thermal management, low power consumption and minimal installation space.

Unlike conventional intake filter fans, the Finder 7F.31.9.024.1020 uses a reverse airflow configuration to extract warm air from inside an electrical enclosure. When combined with a suitably positioned filtered air inlet, it helps establish a controlled ventilation path that removes accumulated heat from sensitive components, including programmable logic controllers, power supplies, communication devices and industrial electronic equipment.

Operating from a nominal 24 V DC supply, the fan delivers an unimpeded airflow of 24 m³/h and a filtered airflow of 14 m³/h, with a rated power consumption of just 3.6 W. Its compact 120 × 120 mm front dimensions, shallow 41.4 mm installation depth and IP54 protection rating make it a practical solution for compact industrial enclosures in demanding indoor and outdoor environments.

Key Advantages

• Outdoor reverse flow design extracts warm air from electrical cabinets and industrial control enclosures.
• 24 V DC operation is ideal for compatible industrial automation and low-voltage control systems.
• 24 m³/h unimpeded airflow provides active ventilation for compact enclosures.
• 14 m³/h filtered airflow supports effective cabinet cooling when used with the specified filtration arrangement.
• Low 3.6 W power consumption helps minimise the electrical demand of continuous ventilation.
• IP54 ingress protection helps protect against harmful dust ingress and splashing water when correctly installed.
• IK08 impact protection supports durability in industrial environments.
• Compact Size 1 construction is suitable for smaller control panels and electrical cabinets.
• 41.4 mm installation depth helps preserve valuable internal enclosure space.
• Replaceable filter mat simplifies routine servicing and maintenance.
• Ball-bearing motor supports dependable operation.
• 37.5 dB(A) noise level provides relatively quiet ventilation.
• Outdoor-oriented construction is suitable for appropriately designed weather-exposed electrical enclosures.

Key Features

• Finder 7F Series electrical enclosure cooling and ventilation product.
• 7F.31 reverse flow configuration for outdoor exhaust ventilation.
• Size 1 filter fan for compact industrial electrical cabinets.
• 24 V DC nominal operating voltage.
• 24 m³/h unimpeded airflow capacity.
• 14 m³/h filtered airflow capacity.
• 150 mA rated input current.
• 3.6 W rated input power.
• 37.5 dB(A) acoustic noise level.
• IP54 ingress protection.
• IK08 mechanical impact protection.
• 120 × 120 mm front dimensions.
• 41.4 mm installation depth.
• Ball-bearing fan motor.
• Replaceable filter mat for convenient maintenance.
• Compact housing designed to minimise space requirements.
• DC electrical connection for compatible low-voltage control systems.
• CE and UKCA conformity.
• RoHS-compliant construction.

Efficient 24 V DC Exhaust Ventilation for Outdoor Electrical Enclosures

Compact industrial electrical cabinets frequently contain heat-generating components such as programmable logic controllers, power supplies, relays, communication modules and electronic control equipment. Even where the overall heat load is relatively low, restricted enclosure space and limited natural airflow can cause internal temperatures to rise. The Finder 7F.31.9.024.1020 outdoor reverse flow filter fan provides active exhaust ventilation to help remove this accumulated heat.

The reverse airflow design draws air from inside the cabinet and expels it into the surrounding environment. When installed alongside an appropriately positioned filtered air inlet, the fan encourages cooler ambient air to replace warmer internal air. This controlled circulation helps improve heat dissipation around electrical and electronic components.

With an unimpeded airflow rating of 24 m³/h and a filtered airflow rating of 14 m³/h, the fan is particularly suited to smaller industrial enclosures where a compact ventilation system is required. Its 3.6 W power consumption makes it an efficient option for applications where electrical demand must be kept low.

The 24 V DC supply is especially convenient for industrial automation systems that already use low-voltage DC power supplies. This allows the fan to be integrated into suitable control panel electrical systems without requiring a separate mains-powered fan supply. The available power supply must be correctly rated, and the fan must be connected with the appropriate polarity and protection.

For demanding installations, the Finder 7F.31.9.024.1020 provides IP54 ingress protection and IK08 impact resistance. These ratings support protection against specified dust, water and mechanical impact conditions. Correct installation and enclosure construction are essential for maintaining the intended environmental protection.

The fan's compact 120 × 120 mm front dimensions and shallow 41.4 mm installation depth help minimise the space required for installation. Its replaceable filter mat allows routine servicing, while the ball-bearing motor supports dependable ventilation.

For effective enclosure thermal management, the required airflow should be calculated according to the heat generated by the installed components, maximum ambient temperature and acceptable internal temperature rise. Actual installed airflow depends on the ventilation openings, filter condition and airflow resistance. As an ambient-air ventilation product, the fan cannot reduce enclosure temperature below the incoming air temperature.

Typical Applications

• Outdoor industrial electrical control cabinets.
• Compact PLC and automation control panels.
• 24 V DC industrial control systems.
• Small electrical distribution and monitoring enclosures.
• Industrial relay and contactor cabinets.
• Telecommunications and communications equipment enclosures.
• Remote monitoring and telemetry cabinets.
• Renewable energy monitoring and control panels.
• Water treatment and pumping station control enclosures.
• Utility and infrastructure electrical cabinets.
• Industrial power supply and electronic equipment enclosures.
• OEM machinery and compact automation equipment.
• Electrical cabinets requiring low-power exhaust ventilation.
• Industrial enclosure cooling and thermal management systems.