
250mm Ec Motor High Pressure Galvanized Metal Impeller Backward Curved Centrifugal Fan. EC Brushless Motor: High efficiency EC brushless external rotor motor with locked-rotor and thermal protection. Galvanized Steel Impeller: Durable 250mm galvanized steel impeller designed for high-pressure applications. Precise Speed Control: Supports 0-10VDC/PWM speed control for flexible ventilation management. IP44 Protection Rating: Robust IP44 protection type ensures safety against solid objects and water splashes. Multi-Industry Usage: Suitable for air conditioners, manufacturing, and refrigeration systems. Global Certifications: Complies with RoHS, ISO, and CE standards for international market access. OEM/ODM Service: Customization services available including backward curved centrifugal fan types.