400mm DC Backward Centrifugal Fan, 48V BLDC Centrifugal Blower for Duct Mount, DC Fan with 0-10V PWM Control for Server and HVAC Cooling, OEM ODM

400mm DC Backward Centrifugal Fan, 48V BLDC Centrifugal Blower for Duct Mount, DC Fan with 0-10V PWM Control for Server and HVAC Cooling, OEM ODM. Airflow and Pressure: LWBD3G400-102NH-01 delivers 3000 m3/h at 420 Pa and 1260 rpm, with the P-Q curve running to 3200 m3/h, so you read your duct point off one chart. BLDC External Rotor Motor: Runs on 48V DC across a 36-61V range at 3.8A and 180W, so you drive it straight from a DC bus with no separate VFD. Aluminum Alloy Impeller: The 400mm impeller and blades use aluminum alloy per spec, keeping the wheel light and corrosion resistant for duct duty. precision ball bearings: Fitted with precision ball bearings for smoother running and a longer service life under continuous duct operation. Speed Control and Protection: 0-10VDC or PWM input with tach output, plus locked-rotor, reverse-polarity, over-voltage and soft start protection built in. Duct Mounting: The 262mm inlet inside diameter matches standard duct openings, so the fan mounts inline without an adapter plate. OEM ODM Customization: Offered in 24V or 48V DC with wire length customizable beyond the 500mm standard, plus full, minor or design-based OEM and ODM programs.