Pfannenberg PF 65000 230V IP55 Filterfan, 505 m3/h

PF 65000 230V IP55 filterfan: decoded article 11665103055

The PF 65000 230V IP55 is a installation size 6 filterfan with fluted filter and UV-resistant cover from Pfannenberg, intended to move cabinet-external air through a filter mat and into an electrical enclosure. It is built into a door or side panel cut-out and removes heat by exchanging the warm enclosure air for cooler ambient air, so it only works when the surrounding air is cooler than the maximum acceptable temperature inside the cabinet.

The model name decodes as follows: PF is the filterfan family, 65000 identifies installation size 6 (the cut-out and airflow class), 230 V AC is the supply voltage and IP55 is the protection class of the filterfan face. The full order number for this exact variant is 11665103055. Installation size 6 is the largest standard size in the family, and this IP55 variant delivers 505 m³/h of free airflow from one fan.

Technical specifications of the PF 65000 230V IP55

Data are from the product page for article 11665103055 and the series sheet. The housing material on this IP55 version is stated as UV-resistant.

How the PF 65000 230V filterfan works

The fluted filter of the IP55 version has a 91 % filtration efficiency and a larger effective surface than the flat mats used on IP54 units, which is why the stated airflow with the exhaust filter fitted (380 m³/h) remains higher than for the equivalent IP54 version.

In the PF 65000 230V IP55, air enters through the louvred front cover, passes through the filter mat and is pushed into the enclosure by a single axial fan. Warm air leaves the cabinet through a second opening, usually fitted with a matching exhaust filter, so that dust cannot enter through the outlet either. The louvres are shaped to give a high airflow for the size of the housing and to keep splash water and falling debris away from the filter mat.

Because the PF 65000 230V IP55 only moves air, the achievable cooling depends on the temperature difference between the inside and the outside of the enclosure and on the pressure drop of the filters and any rainhood. A thermostat is normally used to switch the fan on at a set cabinet temperature, which saves power and extends filter life.

Fit in the system and related Pfannenberg parts

The cut-out of 292 mm x 292 mm is compatible with older size-6 filterfans and with the cooling unit DTFI 9021, a point that makes upgrades from one technology to another simpler.

The same family covers installation sizes 1 to 6, with sibling models such as PF 11000, PF 22000, PF 32000, PF 42500, PF 43000, PF 65000 and the slim PF 67000 SL. The exhaust counterpart carries the PFA prefix and shares the cut-out, so a filterfan and an exhaust filter of the same size can be combined for forced circulation.

• Exhaust filter, grey: article 11760002055
• Exhaust filter, black: article 11760002050
• Spare filter mats, pack of 5: article 18611600033
• Thermostat: article 17121000000; hygrostat: article 17207000000
• Rainhood in stainless steel: article 18102000020

Selection and ordering checklist for the PF 65000 230V IP55

Before ordering the PF 65000 230V IP55, confirm that the following points are settled so the correct variant is quoted:

• Cabinet heat load in watts and the permitted internal temperature
• Highest outdoor or room air temperature; a filterfan only cools when ambient is below the enclosure limit
• Supply: 230 V AC (115 V AC article 11665153055 also exists); other voltages carry other article numbers
• Cut-out of 292 mm x 292 mm and the installation depth behind the panel
• Depth of 150 mm behind the panel, which is considerable for a filterfan

A size-6 filterfan usually serves a large cabinet or a switchgear section where several hundred watts must be dissipated. Compare the airflow after the exhaust filter, not the free-flow figure, against your heat-balance calculation.

Installation, commissioning and maintenance of the PF 65000 230V IP55

Installing the PF 65000 230V IP55 uses a cut-out in the cabinet wall and the tool-free four-corner fastening of the Pfannenberg filterfan. A poured foam seal on the frame is pressed against the panel, which keeps the stated protection class intact without a separate gasket. Mount the fan so that the airflow is from outside to inside and place the exhaust outlet as far from the inlet as practical, ideally at the opposite side and higher up, so warm air rises out of the enclosure.

Connect the PF 65000 230V IP55 supply with the fuse stated in the data table and protect the circuit as described in the manual. For commissioning, run the fan for several minutes and confirm direction of air movement at the louvres, then check the enclosure temperature under real load.

• Inspect the filter mat at each service visit and replace it when visibly loaded; spare mats come in packs of five
• Verify that the exhaust opening is clear and that cables do not obstruct the louvres
• Replace the fluted filter before the pressure drop starts to choke the fan; dusty sites need shorter intervals

The IP55 rating gives protection against water jets on the face, so the unit can be fitted on kiosks and cabinets outdoors, provided a rainhood is added for prolonged exposure to sun and rain.

Typical applications in Oman and the GCC

Typical uses include variable-speed-drive halls, large MCC lineups, battery rooms and generator control cabinets at power and water sites where the ambient air is cooler than the allowed internal temperature.

Across the region, filterfans are used on control panels in oil and gas facilities, power stations and substations, desalination plants and petrochemical sites, where cabinets sit in electrical rooms or outdoor kiosks. Ambient temperatures above +40 °C for much of the year, fine sand and high humidity near the coast mean that the filter mat class, the protection class and the thermal margin should be checked rather than assumed. Where outdoor ambient air can approach the allowed enclosure temperature, a cooling unit or heat exchanger is the better choice than a filterfan.

Variants and voltages in the family of the PF 65000 230V IP55

The table lists the article numbers shown by the manufacturer for the same size, so you can see which variants exist around the one requested.

Information to send with an RFQ for the PF 65000 230V IP55

A complete request avoids delays. Please provide:

• Part number or article number, for example PF 65000 230V IP55 / 11665103055
• Quantity and whether exhaust filters, spare filter mats, thermostat or rainhood are needed
• Supply voltage and frequency available at the cabinet
• Maximum ambient temperature and the heat load to be removed, if you want a sizing opinion
• Site conditions: indoor room, outdoor kiosk, sand, oil mist or salt air
• Delivery destination in Oman or the GCC and required date

Documents and quotation

A product sheet for the PF 65000 230V IP55 series is attached on this page, and it shows the airflow data, article numbers for every voltage, accessory article numbers and the performance curves for the size.

To receive a quotation for the PF 65000 230V IP55, send us the part number, the quantity and the delivery destination in Oman or the GCC. Seven Star LLC is an independent supplier based in Muscat and confirms lead time and availability against each request.