Purchase now: Pfannenberg 11842101055 PFA 40.000 Exhaust Filter
Purchase now: Atlantech Drives provides you the Pfannenberg 11842101055 (Model: PFA 40.000), the designated Exhaust Filter for the PF 42.500 and PF 43.000 Filterfan series. In industrial cooling, the exhaust path is often the bottleneck. The PFA 40.000 is engineered to allow the rapid expulsion of hot air from the enclosure while maintaining a strict IP 54 / NEMA Type 12 barrier against dust and moisture ingress. Without this unit, the intake fan would work against backpressure, drastically reducing its cooling efficiency (CFM).
Technical Specifications and «Click & Fit» Installation
The 11842101055 fits the industry-standard square cutout of 223 x 223 mm. It is constructed from UV-resistant, self-extinguishing ABS plastic (UL 94 V-0) in RAL 7035 (Light Gray). The unit features Pfannenberg’s patented Click & Fit technology, which utilizes high-tension snap clips to secure the frame into the sheet metal wall (1mm to 4mm thickness) without screws, reducing assembly time by up to 50%.
- Part Number: 11842101055.
- Model: PFA 40.000.
- Cutout Dimensions: 223 x 223 mm.
- Filter Mat: G4 Fluted (Included).
- Protection Rating: IP 54 / NEMA 12.
- Material: Thermoplastic (High Impact).
- Operating Temp: -40 °C to +55 °C.
Expert Installation Advice: The Diagonal Rule
To maximize the «Delta T» (cooling effect), never place the exhaust filter directly next to the intake fan. Expert Tip: Install the intake fan (PF 43.000) at the bottom of the enclosure and the PFA 40.000 exhaust filter at the top of the opposite wall. This diagonal placement forces the cool air to traverse the entire volume of the cabinet, washing over the heat sinks of VFDs and PLCs before exiting, ensuring no «hot spots» remain.
Frequently Asked Questions (FAQs)
Q: Does this filter fit the PF 66.000?
A: No. The PFA 40.000 fits the 223mm cutout. For the larger PF 66.000 (291mm cutout), you need the PFA 60.000 (Part No. 1186…).
Q: Can I replace the mat from the outside?
A: Yes, the front grille hinges open easily, allowing you to swap the filter mat in seconds without opening the electrical cabinet door or using tools.
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