Centrifugal fan made of plastic. High-pressure fan for industrial applications. Suitable for conveying corrosive and acidic media. Designed for simple and direct installation on a pipework system. Low noise level and high efficiency. The motor is located outside the airflow. The motor base made of epoxy-coated sheet steel for mounting the fan is included in the scope of delivery. Housing made of plastic. Standard orientation for housing is 270°. Suitable for temperature ranges from -15 °C to +70 °C. Centrifugal impellers with backward curved blades made of polypropylene. Three-phase motor: asynchronous three-phase motors. Protection class is IP55. IE3 motor. Operating mode is S1 (continuous operation). Speed is controllable with a frequency converter. Permissible frequency range for speed control with frequency inverter is 20-50 Hz. The temperature in the fan motor is monitored by PTC thermistors. The PTC thermistors must be connected to a tripping system that permanently disconnects the fan from the mains if the temperature is too high. Electrical connection: connection in the terminal box on the motor. Flow rate is 17,500 m³/h. Speed is 1,440 1/min. Impeller type is radial. Speed controllable: yes. Reversible: no. Voltage type is three-phase. Rated voltage is 400 V. Mains frequency is 50 Hz. Rated power is 5,500 W. Rated current is 10.4 A. Protection rating is IP 55. Thermal class is F. Pole-changing: no. Installation location is pipe connection. Installation position is horizontal. Housing material is plastic, polyethylene. Material of impeller is plastic, polyethylene. Colour is light grey. Weight is 131 kg. Weight with packaging is 154 kg. Size is 630 mm. Width is 887 mm. Height is 1,200 mm. Depth is 1,110 mm. Width with packaging is 1,000 mm. Height with packaging is 1,460 mm. Depth with packaging is 1,200 mm. Fluid temperature at maximum is -15 °C to 70 °C. PTC DIN 44081 is M 100.