Like most electronic equipment, heat, humidity, high elevations, and dirty environments require special considerations. The KMG Industrial filter is designed for use in protected indoor environments similar to the standard drive. Normal indoor industrial environments are specified as having a maximum ambient temperature of 40 degrees C and are protected from dirt and moisture. The KMG General Purpose filter is designed for the NEMA 1 indoor and NEMA 3R outdoor enclosure. Please contact your TCI distributor or representative if additional application assistance is required.