280mm Plug Backward Curved Centrifugal Fan with Direct-Drive Ec Motor

280mm Plug Backward Curved Centrifugal Fan with Direct-Drive Ec Motor. EC Brushless Motor: Features an efficient EC brushless external rotor motor for energy savings. Galvanized Steel Construction: Impeller and bracket made of galvanized steel for durability and corrosion resistance. Versatile Speed Control: Supports 0-10VDC and PWM signals for precise fan speed adjustment. Comprehensive Motor Protection: Includes locked-rotor, reverse polarity, thermal protection, and soft start. IP44 Protection Rating: Provides protection against solid objects larger than 1mm and water splashes. Multiple Certifications: Certified by RoHS, ISO, and CE standards for safety and compliance. OEM and ODM Services: Customization services available for fan type and motor specifications.