YDTG high-temperature resistant fan dedicated variable pole multi speed three-phase asynchronous motor, frame number: H80-315, voltage: 380V, 400V, 415V, etc., insulation level: F, H, protection level: IP55. It is developed by our company for the fan supporting occasions of fire protection system, such as subway, tunnel, shopping mall, parking lot, flue, etc. The high-temperature resistance level is 200 ℃/2 hours, 250 ℃/2 hours, 280 ℃/1 hour, 300 ℃/2 hours, and has a qualification certificate.