Finder 7F.31.8.120.5550 – 7F Series Filter Fans – For outdoor use – Reverse flow

Why Choose the Finder 7F.31.8.120.5550 Outdoor Reverse-Flow Filter Fan?

The Finder 7F.31.8.120.5550 is a high-capacity 120 V AC outdoor reverse-flow filter fan from the Finder 7F Series, designed to extract warm air from industrial electrical cabinets, automation enclosures and outdoor control panels. This Size 5 filter fan delivers a nominal unimpeded airflow of 550 m³/h, providing substantial ventilation capacity for enclosures containing heat-generating electrical equipment.

Unlike standard draw-in filter fans, the Finder 7F.31 reverse-flow configuration expels warm air from the enclosure. When combined with a suitably positioned filtered air inlet, it helps establish a controlled ventilation path through the cabinet, supporting heat dissipation around PLCs, motor starters, power supplies, variable speed drives and other electronic components.

Featuring IP54 ingress protection, IK08 impact resistance, a 320 × 320 mm external face and a 131.5 mm installation depth, the Finder 7F.31.8.120.5550 combines effective outdoor enclosure ventilation with practical installation and maintenance. Its ball-bearing fan construction and replaceable filter mat make it suitable for demanding industrial applications.

Key Advantages

• 550 m³/h nominal unimpeded airflow for high-capacity electrical enclosure ventilation.
• Reverse-flow exhaust operation helps remove accumulated warm air from industrial control cabinets.
• 120 V AC supply for compatible industrial electrical installations.
• Outdoor application design for suitably constructed external electrical enclosures.
• IP54 protection rating helps resist dust and water ingress when correctly installed.
• IK08 impact resistance provides additional mechanical durability.
• Size 5 construction supports ventilation requirements in larger electrical cabinets.
• Ball-bearing fan supports dependable operation.
• Replaceable filter mat simplifies routine maintenance.
• 320 × 320 mm external dimensions provide a practical enclosure-mounted ventilation solution.
• 131.5 mm installation depth supports integration into compatible control cabinets.
• Suitable for industrial automation, motor control and electrical distribution applications.

Key Features

• Finder 7F Series outdoor filter fan.
• 7F.31 reverse-flow exhaust configuration.
• Size 5 fan and filter assembly.
• 120 V AC nominal operating voltage.
• 550 m³/h nominal unimpeded airflow.
• Up to 440 m³/h filtered airflow, depending on operating conditions.
• 75 W listed input power.
• 75 dB(A) noise level.
• IP54 ingress protection.
• IK08 mechanical impact resistance.
• 320 × 320 mm external face dimensions.
• 131.5 mm installation depth.
• Ball-bearing fan construction.
• Replaceable filter media for routine servicing.
• Designed for outdoor industrial electrical enclosure ventilation.
• RoHS compliant.

High-Capacity Reverse-Flow Ventilation for Outdoor Automation Cabinets

Industrial electrical cabinets can experience elevated internal temperatures due to heat generated by variable speed drives, motor starters, PLCs, power supplies and other electronic components. Outdoor installations may experience additional thermal loading from direct sunlight and changing ambient temperatures.

The Finder 7F.31.8.120.5550 uses a reverse-flow exhaust arrangement to remove heated air from the enclosure. Installing the fan in an appropriate exhaust position, together with a suitably sized filtered air inlet, helps establish an effective airflow path around heat-generating equipment.

With a nominal 550 m³/h unimpeded airflow, the fan provides substantial ventilation capacity for larger industrial cabinets. Filtered airflow can reach 440 m³/h, although actual installed performance depends on filter resistance, ventilation openings, cabinet layout and operating conditions.

The IP54 ingress protection and IK08 impact resistance support use in appropriately designed outdoor electrical installations. The ball-bearing fan construction supports reliable operation, while the replaceable filter mat allows maintenance engineers to service the ventilation system as required.

Fan-assisted ventilation cannot cool an enclosure below the incoming ambient air temperature. Engineers should therefore assess the cabinet heat load, environmental exposure and required airflow before selecting the ventilation arrangement. Regular filter inspection and maintenance help prevent airflow restriction and maintain effective cooling performance.

Typical Applications

• Outdoor electrical control cabinet ventilation.
• Industrial automation and PLC enclosures.
• Motor control centres and machinery control panels.
• Variable speed drive and softstarter cabinets.
• Electrical distribution and switchgear enclosures.
• Industrial power supply and relay cabinets.
• Water treatment and pumping station control systems.
• Outdoor process monitoring installations.
• Infrastructure and utility control enclosures.
• Manufacturing and production equipment.
• OEM electrical panel construction.
• Large industrial cabinets requiring high-capacity exhaust ventilation.