Guardian Series KNP32FL NEMA 4 or NEMA 4XIndoor/Outdoor Filter Fans

The Guardian Series KNP32FL is a NEMA 4 or NEMA 4X filter fan engineered for reliable indoor and outdoor operation in demanding industrial environments. This robust unit maintains its NEMA 4 or 4X rating when used with the provided filter, ensuring dependable protection against dust, moisture, and environmental contaminants across a wide range of applications.

The enclosure features a heavy-duty steel shell with baked powder finish in ANSI 61 gray, with stainless steel construction available for NEMA 4X models to resist corrosion in chemically aggressive or moisture-laden environments. Integrated fan guards and a sealing gasket work together to protect the internal components, while the IP55 filter protection rating provides comprehensive defense against external elements. The unit includes a six-foot 3-wire power cord for convenient installation and secure mounting hardware for stable placement.

At the heart of the system are UL/CSA Recognized ball-bearing motors available in permanent split capacitor or shaded pole configurations, each equipped with automatic-reset thermal overload protection to safeguard against motor damage. Kooltronic's motors are specifically designed for low temperature rise and benefit from cooling by the blower's intake air, extending service life significantly. The special permanent lubricants maintain consistent performance across an exceptional temperature range from -20F to 250F, ensuring reliable operation in extreme conditions. The washable, reuseable filter eliminates recurring replacement costs while maintaining consistent filtration. The unit is UL/CUL Listed and carries a Declaration of Conformity to applicable CE Standards for global compliance.