The new filterfan generation comprises five sizes, with eight IP54 variants filtering to an improved G3 specification and seven IP55 versions capable of G4 level filtration. It features a new, patented 4-corner locking / fastening system; the cage clamp terminal block’s position is changeable through 90° step turns to accommodate differing wiring directions. All units in the range are completely reversible, either to introduce or extract air from the enclosure and provision is made for mounting a thermostat on the rear face of all exhaust filters to reduce energy consumption.
IP 55 variants are manufactured from UV stable material and are suitable for use in outdoor applications without any extra protection. EMC screening, achieved by means of an external stainless steel grid, is available for both IP54 and IP55 versions. No special preparatory work is needed to provide EMC shielding; ground continuity with the enclosure is achieved through surface-to-surface contact made via the edge of the cutout for the filterfan or exhaust filter.
The cut-outs are 100% compatible with the previous generation and with those used by major competitors.