Veton Frameless Fans have the reverse polarity protected.It have the following size 7525,8025,11025,14025.Special frame could be customized.It have the ball bearing and sleeve bearing.It can run on 5V,12V,24V or 48 VDC.Special voltage could be customized. In ordet to meet the worldwide safety requirement.It have obtained the certificates of UL,CUL,TUV,CE,SGS and REACH.

Veton Frameless Fan also have the special functions like auto-restarting,thermal speed control,tachometer speed sensor output,lock rotor alarm output,pulse width modulation (PWM),dust proof and water resistant. We can offer all of these as you requirement.