GW series high temperature motors are designed to withstand the extreme environmental conditions associated with a building fire. ventilation systems within public buildings are required to continue providing smoke extraction for 2 hours at smokespill air temperature of 250℃ or for 30 minutes at 300℃. designated respectively as rating-1 and rating-2 in according with AS/NZS 1668.1 and IEC standard

 Technical specifications:  

            1.ambient temperature:  -15℃  ~ 300 ℃

            2.  attitude:  ≤ 1000 M

            3.  Insulation Class:  H    

            4.  Protection degree:  IP44,IP54,IP55

            5.  Duty: S1