
230V IP55 Ec Duct Fan 85W with Variable Speed Control. IP55 Protection: Designed for reliable operation with protection against dust and water. EC Brushless Motor: High-efficiency EC external rotor motor for reliable and energy-saving operation. Flexible Speed Control: Supports 0-10VDC and PWM speed control for flexible airflow adjustment. High Airflow & Pressure: Designed to provide strong airflow and static pressure for ventilation applications. Multiple Motor Protections: Features locked-rotor protection, polarity protection and automatic restart capability. Long Service Life: Designed for a life expectancy of up to 50,000 hours under specified operating conditions. Ball Bearing System: Equipped with NMB ball bearings for stable and reliable operation. HVAC Ventilation Application: Suitable for ventilation, HVAC and air-conditioning systems.