Pfannenberg's PFA 20000 54 7035 is a fan and filter unit measuring 145 x 145 x 31 mm, designed for switchboard temperature control. This product aids in electrical enclosure ventilation, ensuring optimal performance by managing heat buildup. It is an essential component for maintaining the efficiency of switchboards. https://elecena.pl/product/28741304/pfannenberg-11720001055-pfa-20000-fan-and-filter-145x145x31mm-1-piece 2025-05-19 https://elecena.pl/product/28741304/pfannenberg-11720001055-pfa-20000-fan-and-filter-145x145x31mm-1-piece 2026-04-06 https://elecena.pl/product/28741304/pfannenberg-11720001055-pfa-20000-fan-and-filter-145x145x31mm-1-piece 2026-07-06 https://elecena.pl/product/28741304/pfannenberg-11720001055-pfa-20000-fan-and-filter-145x145x31mm-1-piece 2026-07-29 https://elecena.pl/product/28741304/pfannenberg-11720001055-pfa-20000-fan-and-filter-145x145x31mm-1-piece 2026-09-15