This type of protection is usually employed at temperatures in excess of 150°C in order to separate the higher temperature internal area from the external area at ambient temperature. The maximum limit of the application range (200-300°C) must be studied case by case, making use of motors for high temperatures. For more information consult our technical department. Cannot be supplied for directly coupled fans (version 4 and 5) with motor frame size 63.
Dimension “B” increases by ~60mm for Exec. 4, 1, 9, 12, 8 fans, and by 65mm for Exec. 5 fans. Above 300°C insulation is applied to the entire fan case and we strongly discourage the use of Exec. 4 and 5 fans.
