Ultraviolet control cabinets dissipate real heat from ballasts and ignitors into a largely sealed enclosure. Cooling failures present as intermittent, temperature-dependent shutdowns rather than as a clean fault, so cooling parts are worth replacing on condition rather than on failure. This fan covers the BX and LBX cabinets. Note that this catalogue also lists a fan specific to the BX1800 under item 13129-0615; check which is fitted before ordering. Wedeco was founded in Herford, Germany in 1976 and is now a Xylem brand.