250mm Centrifugal Fans Backward Curved 24V 48V DC Brushless Cooling Fan

• Customization: Available
• Material: Plastic
• Usage: for Air Conditioner, for Manufacture, for Refrigerate
• Model NO.: B3D-XX250-S9-XX
• Flow Direction: Centrifugal
• Pressure: Medium Pressure
• Certification: RoHS, ISO, CE
• Fan Type: Backward Curved Centrifugal Fan
• Motor Type: Ec Brushless External Rotor Motor
• Speed Control: 0-10VDC/PWM
• Protection Type: IP44
• Insulation Class: B
• Ambt. Temperature: - 25 ~ +60
• Operation Mode: S1
• Bearing System: Ball Bearing
• Applications: Ventilation, Air Purifier, Cooling
• Transport Package: Standard Exporting Packages
• Specification: 250mm
• Trademark: OEM/ODM
• Origin: China
• HS Code: 8414593000
• Production Capacity: 50, 000PCS/Year

Product Description

 

Voltage Type: AC
Motor Type: EC Brushless External Rotor Motor
Impeller Diameter: 250mm
Impeller Material: PA Plastic + Glass Fiber
Speed Control: 0-10VDC/PWM
Protection Type: IP44
Insulation Class: B
Operation Temperature: - 25 ºC ~ +60 ºC
Motor Protection: Locked-Rotor Protection, Reverse Polarity Protection, Thermal Protection, Soft Start

Model No.	Bearing System	Rated Voltage	Operating Voltage	Rated Current	Rated Power	Rated Speed	Air Flow	Air Pressure	Noise Level
	B/S	VDC	VDC	A	W	RPM	m³/h	Pa	dBA
B3D-24250-S9-00	Ball	24	16~28	3.5	85	2100	1240	360	66
B3D-48250-S9-00	Ball	48	36~57	1.75	85	2100	1240	360	66
B3D-24250-S9-01	Ball	24	16~28	5	120	2650	1653	683	72
B3D-48250-S9-01	Ball	48	36~57	2.5	120	2650	1653	683	72
B3D-24250-S9-02	Ball	24	16~28	7.3	175	2850	1725	720	74
B3D-48250-S9-02	Ball	48	36~57	3.6	175	2850	1725	720	74

Outline Drawing

 

Performance Curve