1. Lower energy consumption, higher efficiency, longer working life, slight vibration, low noise & continuously working.
2. Input voltage/ frequency: 115~230VAC / 50~60Hz.
3. Smart protection for fan, st-op work-ing after detecting foreign matter stuck fan blade.
4. Good regulation-speed performance, smart control and can make the continuously variable control.
5. Speed stability, speed controllable from 10% to 100% via 0~10V analogue input signal.
6. Constant air volume output, the fan will increase the speed after detecting the foreign matter in the flflange to increase the air volume.