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Finder 7F.21.9.024.2055 – 7F Series Filter Fans – Reverse flow
Finder 7F.21.9.024.2055 is a Size 2 reverse-flow exhaust filter fan operating at 24 V DC, with a 55 m³/h free-air flow rate, 7 W rated power and IP54 protection for industrial electrical cabinet ventilation.
£50.95
Why Choose the Finder 7F.21.9.024.2055 Reverse Flow Filter Fan?
The Finder 7F.21.9.024.2055 is a compact 24 V DC reverse flow filter fan designed for forced-air ventilation and thermal management in industrial electrical enclosures, automation cabinets and control panels. As part of the Finder 7F Series, it provides a practical solution for maintaining suitable internal temperatures around heat-generating electrical and electronic equipment.
The Finder 7F.21 reverse airflow configuration offers an alternative to conventional intake filter fans, allowing engineers to design enclosure ventilation systems around specific airflow requirements. Its integrated filter assembly helps limit the movement of airborne dust and contaminants through the ventilation opening, while the powered fan supports controlled air exchange.
Operating from a 24 V DC supply, the Finder 7F.21.9.024.2055 is particularly suitable for industrial automation installations using low-voltage DC control power. Its compact enclosure-mounted construction and replaceable filtration medium make it a convenient choice for machinery control panels, PLC cabinets and electrical distribution enclosures.
Key Advantages
- Compact reverse flow filter fan for electrical enclosure ventilation.
- 24 V DC operating voltage suitable for industrial control power systems.
- Reverse airflow configuration provides flexibility in cabinet cooling design.
- Integrated filtration helps reduce airborne dust and contaminants.
- Forced-air ventilation supports heat dissipation from electrical equipment.
- Compact construction suits smaller electrical cabinets and automation panels.
- Replaceable filter medium simplifies routine maintenance.
- Designed for integration with compatible Finder 7F Series ventilation accessories.
- Suitable for industrial machinery, automation and electrical control applications.
- Helps maintain reliable operating conditions for temperature-sensitive components.
Key Features
- Finder 7F Series electrical enclosure ventilation product.
- 7F.21 reverse flow fan configuration.
- 24 V DC rated supply.
- Integrated electric fan for powered enclosure ventilation.
- Filter assembly for reducing airborne particle ingress.
- Replaceable filter mat for periodic servicing.
- Protective external grille and compact housing.
- Designed for installation in electrical enclosure walls.
- Compatible with appropriately selected exhaust or intake ventilation filters.
- Suitable for PLC cabinets, machine control panels and industrial automation equipment.
Reliable 24 V DC Reverse Flow Ventilation
Electrical control cabinets containing PLCs, power supplies, relays, motor controllers and other electronic devices generate heat during normal operation. The Finder 7F.21.9.024.2055 provides powered ventilation to help manage this heat and maintain suitable internal enclosure temperatures.
Unlike a standard intake filter fan, the reverse flow design is intended to move air in the opposite direction through the fan assembly. This provides additional flexibility when configuring airflow paths, positioning ventilation openings and managing heat distribution within electrical cabinets.
The 24 V DC power supply allows straightforward integration into industrial control systems using low-voltage auxiliary power. For effective cooling, the fan should be selected according to the enclosure heat load, ambient conditions, required airflow and compatible ventilation accessories.
Typical Applications
- Industrial PLC and automation control cabinets.
- 24 V DC machine control systems.
- Electrical distribution and switchgear enclosures.
- Industrial power supply and control panels.
- Motor control and variable frequency drive cabinets.
- Packaging and manufacturing machinery.
- Process control and instrumentation enclosures.
- Telecommunications and electronic equipment cabinets.
- OEM automation and machine-building installations.
- Compact industrial enclosure cooling systems.
Technical Specifications
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| Cut-Out Size (mm) | 125 × 125 mm | |
|---|---|---|
| Manufacturer | Finder | |
| Series | 7F Series | |
| Model | 7F.21.9.024.2055 | |
| Product type | Reverse flow electrical enclosure filter fan | |
| Fan configuration | Reverse flow | |
| Rated supply voltage | 24 V DC | |
| Supply type | Direct current (DC) | |
| Ventilation method | Motor-driven forced airflow | |
| Filter medium | Replaceable filter mat | |
| Mounting type | Electrical enclosure wall mounting | |
| Primary function | Electrical cabinet ventilation and thermal management | |
| Compatible accessories | Appropriately sized Finder 7F Series ventilation filters | |
| Manufacturer part number | 7F.21.9.024.2055 |
Frequently Asked Questions
What is the Finder 7F.21.9.024.2055 used for?
The Finder 7F.21.9.024.2055 is a reverse flow filter fan used to provide powered ventilation and help control temperatures inside industrial electrical enclosures and automation cabinets.
What supply voltage does this Finder filter fan require?
The filter fan operates from a 24 V DC supply, making it suitable for industrial control systems with compatible low-voltage DC power supplies.
What does reverse flow mean on the Finder 7F.21 series?
Reverse flow means the fan moves air in the opposite direction to the standard Finder 7F.20 filter fan configuration, providing flexibility in electrical enclosure ventilation design.
Does the Finder 7F.21.9.024.2055 include a filter?
Yes. The fan incorporates a filter assembly with a replaceable filter medium designed to help reduce airborne contaminants passing through the ventilation opening.
Where can this 24 V DC filter fan be installed?
The fan is intended for installation in suitable electrical enclosure walls, including PLC cabinets, machinery control panels, industrial automation enclosures and electrical distribution cabinets.
Trusted Finder Electrical Enclosure Cooling Solutions
Finder 7F Series filter fans provide practical ventilation solutions for industrial electrical cabinets and automation equipment. The 7F.21.9.024.2055 combines 24 V DC operation, reverse airflow and integrated filtration to support effective thermal management in industrial control systems.
