Technical Description: Pfannenberg 11740003055 (PFA 40.000)
The Pfannenberg 11740003055 is a high-efficiency PFA 40.000 Series Exhaust Filter designed for industrial electrical enclosure ventilation. This component is part of the 4th Generation thermal management family and is engineered to work in tandem with PF 42.500 or PF 43.500 Filterfans. By creating a balanced airflow path, the PFA 40.000 ensures that heated air is effectively expelled while maintaining the cabinet’s internal pressure and environmental seal.
Tool-less «Click & Fit» Assembly
A hallmark of the 40,000 series is the patented Click & Fit mounting system. The 11740003055 can be installed into the enclosure cutout in seconds without the need for screws or specialized tools. This significantly reduces labor costs during machine assembly and field retrofitting. It comes equipped with a high-quality fluted filter mat that achieves IP 54 protection as standard, filtering out industrial dust while allowing for maximum air displacement.
Key Characteristics
- Part Number: 11740003055.
- Series: PFA 40.000 (Exhaust Filter).
- Filter Mat: G4 (Standard) fluted type.
- Protection Rating: IP 54 / Type 12.
- Color: RAL 7035 (Light Gray).
- Cut-out Dimensions: 223 x 223 mm.
- Housing: UV-resistant ABS plastic (UL 94 V-0).
Thermal Management Logistics
The PFA 40.000 is critical for preventing «hot spots» within the electrical cabinet. By placing the exhaust filter at the highest possible point, engineers utilize the natural chimney effect, which assists the mechanical fan in removing hot air from the top of the enclosure. The fluted filter technology offers a 300% longer service life than traditional flat mats, reducing the frequency of maintenance intervention.
| Category | Specification |
| External Dimensions | 252 x 252 x 38 mm |
| Filtration Efficiency | Approx. 91% (G4) |
| Mass | 0.58 kg |
Maintenance Insights
To maintain peak cooling efficiency, the filter mat should be inspected every 3 to 6 months. Thanks to the tool-less design, the mat can be swapped from the front of the unit in seconds without de-energizing the machine. Always use original Pfannenberg mats to maintain the IP rating.
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