
400*254.5mm Ec Backward Curved Centrifugal Fan with Support Bracket Pk3n250b2e-Yz5. EC Brushless Motor Technology: Features EC brushless external rotor motor for high efficiency and linear voltage-to-speed control. Precise Speed Control: Supports 0-10VDC/PWM speed control and tachometer output for flexible integration. Robust Material Construction: Constructed with aluminum sheet housing and stainless steel blades for durability. IP55 Protection Rating: Offers IP55 protection type to ensure safety against dust and water jets. Multiple Certifications: Complies with RoHS, ISO, CE, and CCC standards for global market access. High Air Flow Performance: Delivers an air flow of 2750 M3/H with a static pressure of 330 PA. Low MOQ for Flexibility: Minimum order quantity is just 1 set, allowing for easy sample testing and small batches.