Why Choose the Finder 7F.21.8.120.5700 Reverse Flow Filter Fan?
The Finder 7F.21.8.120.5700 is a high-performance reverse flow filter fan for electrical cabinets and industrial enclosures, designed to provide effective ventilation and controlled heat removal from electrical equipment. As part of the Finder 7F Series industrial thermoregulation range, this exhaust filter fan helps maintain suitable operating temperatures for sensitive electrical and electronic components.
Featuring a reverse airflow configuration, the 7F.21.8.120.5700 extracts warm air from electrical cabinets to reduce internal heat accumulation. Its integrated synthetic fibre filter provides filtration, while the durable plastic housing and replaceable filter mat simplify installation and maintenance. The unit is designed for mounting in enclosure sidewalls and offers IP54 protection when correctly installed.
With a 120 V AC, 50/60 Hz supply, a nominal free-flow air volume of 700 m³/h and a Size 5 enclosure mounting format, the Finder 7F.21.8.120.5700 is suitable for ventilation of industrial control cabinets, switchgear enclosures, automation panels and electrical distribution equipment requiring effective forced-air cooling.
Key Advantages
- Reverse flow exhaust ventilation helps remove accumulated heat from electrical enclosures.
- 700 m³/h nominal free-flow air volume supports effective cabinet ventilation.
- 120 V AC supply for compatible industrial electrical installations.
- IP54 protection rating supports use in demanding industrial environments when correctly installed.
- Integrated synthetic fibre filter provides filtration of the ventilation airflow.
- Replaceable filter mat simplifies routine servicing and maintenance.
- Sidewall mounting design enables integration into industrial electrical cabinets.
- Durable plastic housing provides a practical enclosure ventilation solution.
- Low-maintenance construction helps support dependable long-term equipment operation.
Key Features
- Finder 7F Series industrial filter fan.
- 7F.21 reverse flow configuration for exhaust ventilation.
- 700 m³/h nominal free-flow air volume.
- 120 V AC rated supply voltage.
- 50/60 Hz operating frequency.
- Size 5 enclosure mounting format.
- 291 × 291 mm nominal enclosure cut-out.
- IP54 protection according to EN 60529.
- NEMA Type 12 protection classification.
- Synthetic fibre filter material.
- Replaceable filter mat for straightforward maintenance.
- Plastic housing and cover.
- Sidewall mounting for electrical cabinets and enclosures.
- RAL 7035 grey finish.
Technical Specifications
- Manufacturer: Finder
- Series: 7F Series
- Model: 7F.21.8.120.5700
- Manufacturer part number: 7F.21.8.120.5700
- Product type: Reverse flow filter fan
- Ventilation function: Exhaust / reverse airflow
- Rated supply voltage: 120 V AC
- Supply frequency: 50/60 Hz
- Nominal free-flow air volume: 700 m³/h
- Fan quantity: 1
- Enclosure size: Size 5
- Nominal mounting cut-out: 291 × 291 mm
- Overall dimensions (H × W × D): 320 × 320 × 141.2 mm
- Protection rating: IP54
- NEMA protection classification: Type 12
- Filter material: Synthetic fibre
- Housing material: Plastic
- Housing colour: Grey, RAL 7035
- Mounting type: Sidewall / snap mounting
- Filter maintenance: Replaceable filter mat
- Operating ambient temperature: −15 to +55 °C
- Application: Electrical cabinet and enclosure ventilation
Reliable Thermal Management for Industrial Electrical Enclosures
Electrical cabinets containing power supplies, motor drives, contactors, control equipment and automation components can generate significant heat during operation. Without adequate ventilation, excessive internal temperatures may reduce equipment reliability and affect operational performance. The Finder 7F.21.8.120.5700 reverse flow filter fan helps manage these conditions by extracting warm air from the enclosure and supporting controlled air circulation.
Unlike conventional intake filter fans, the 7F.21 reverse flow design is configured for exhaust operation. Its integrated filter assembly and replaceable synthetic fibre filter mat support practical maintenance, while the robust housing and IP54 protection rating make it suitable for industrial cabinet ventilation installations. For effective thermal management, the fan should be correctly positioned and paired with an appropriately sized ventilation opening or filter arrangement to provide the required replacement airflow.
Typical Applications
- Industrial electrical cabinets and control panels.
- Electrical distribution and switchgear enclosures.
- PLC and industrial automation cabinets.
- Variable frequency drive and motor control enclosures.
- Machine control panels and OEM equipment.
- Industrial power supply and electrical equipment cabinets.
- Manufacturing and production machinery enclosures.
- Textile, paper processing and packaging equipment.
- Industrial equipment requiring forced-air exhaust ventilation.
- Electrical enclosure thermal management and heat extraction systems.
