Rittal 32391 TopTherm Filter Fan Unit, IP54

Rittal 32391 TopTherm Filter Fan Unit, IP54

The Rittal TopTherm Filter Fan Unit is a complete, tool-free mounting fan assembly engineered for enclosure and cabinet cooling applications. Delivering air throughput from 20 to 900 m³/h, this unit provides IP54 protection as standard to EN 60529 and IEC 60529, with a compact installation depth of just 90 mm for space-saving panel mounting. The TopTherm series is available in 24V DC and 115V AC supply voltage options to match a range of control panel power configurations, and each unit ships complete and ready to install with a fleece filter mat.

Key Features

• Air Throughput: 20 - 900 m³/h airflow range supports a wide span of enclosure cooling loads.
• Protection Rating: IP54 standard to EN 60529 / IEC 60529 with fleece filter or folded filter; upgradeable to IP55 with folded filter and absorber mat, or IP56 with fleece/folded filter and hose-proof hood.
• Installation Depth: Compact 90 mm installation depth for tool-free surface mounting.
• Supply Voltage: Available in 24V DC and 115V AC (single-phase, 50 Hz/60 Hz) configurations to suit standard control panel power supplies.
• Fan Type: Axial fan with shaded pole motor for reliable continuous-duty air movement.
• Pre-Fuse Protection: Miniature circuit-breaker/fuse rated 2A for circuit protection.
• Finish: RAL 7035 housing color for standard enclosure color matching.
• Complete Kit: Ships ready to install with fleece filter mat included; optional folded filter available to increase air throughput.

Certifications & Compliance

• IP54 to EN 60529 / IEC 60529 with fleece filter or folded filter
• IP55 to EN 60529 / IEC 60529 with folded filter and absorber mat
• IP56 to EN 60529 / IEC 60529 with fleece/folded filter and hose-proof hood
• NEMA Type 12 with fleece filter/folded filter
• NEMA Type 3, 3R, 4, 4X with fleece/folded filter and hose-proof hood

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Enclosure and Control Panel Cooling
• Industrial and Commercial Cabinet Ventilation
• Panelboard and Switchgear Enclosure Airflow Management
• Retrofit Cooling for Existing Enclosures
• Indoor and Protected Outdoor Installations (NEMA 3R/4X configurations)

Why Rittal?

Rittal TopTherm filter fan units combine axial fan performance with a shaded pole motor and a robust RAL 7035 housing built for demanding enclosure environments. Available in 24V DC and 115V AC supply configurations with an operating temperature range of -15°C to 55°C and storage range of -30°C to 70°C, plus IP and NEMA-rated protection options, this unit delivers dependable, code-aware thermal management for professional electrical and industrial installations.