HD series square negative-pressure fan has beautiful appearance, easy installation, low noise and smooth operation.The air outlet fitted with vertical blinds, can prevent the outdoor natural wind, while keeping rain out. The fan is suitable for the wall exhaust, such as civil construction, gym and all kinds of entertainment place. According to the driving mode, the fan has three types, I type is general direct-connected motor, II type is belt driven with motor, III type is direct-connected external rotor motor.
1.Rated voltage:220V , 220/440V, 220/380/660V
3.Working Method: continuous (S1) running
4.Cooling Method: ICO141
5.Protection Class: IP44/IP54
6.Insulation Class: Class B (80℃),Class F (120℃),