140*72mm Ec-DC Forward Curved Blade Design Centrifugal Fan

• Customization: Available
• Material: Metal
• Blade Material: Galvanized Sheet Steel
• Model NO.: PF3N140B24M, PF3N140B48M
• Electric Current Type: DC
• Mounting: Duct Fan
• Certification: RoHS, CE
• Product Name: 140*72mm Ec-DC Forward Curved Centrifugal Fan
• Fan Feature: 0~10VDC/PWM Speed Control, Tach Output
• Motor Type: Ec Brushless External Rotor Motor
• Rated Voltage: 24/48 VDC
• Air Flow: 370 M3/H
• Static Pressure: 227 PA
• Protection Type: IP44
• Insulation Class: B
• Operating Temperature: -25~+60
• Weight: 1 Kg
• Transport Package: Standard Exporting Package
• Specification: 72mm Rotor
• Trademark: PBM
• Origin: Suzhou, Jiangsu
• HS Code: 8414593000
• Production Capacity: 50, 000PCS/Year
• Package Size: 34.00cm * 34.00cm * 24.00cm
• Package Gross Weight: 1.500kg

Product Description

140*72mm Ec-DC Forward Curved Blade Design Centrifugal Fan

Model No.: PF3N140B24M / PF3N140B24M

Model: PF3N140B24M
1.General Characters

Model	PF3N140B24M
Rated Voltage	24VDC
Operating Voltage	16~28VDC
Rated Speed	1410 RPM
Input Current	2.0 A
Input Power	49 W
Air Flow	370 m3/H
Static Pressure	227 Pa
Sound Level	63 dB(A)
Protection Type	IP44

Model: PF3N140B48M
1.General Characters

Model	PF3N140B48M
Rated Voltage	48VDC
Operating Voltage	36~57VDC
Rated Speed	1410 RPM
Input Current	1.0 A
Input Power	49 W
Air Flow	370 m3/H
Static Pressure	227 Pa
Sound Level	63 dB(A)
Protection Type	IP44

2.Mechanical Characters

Dimension	140mm X140mm X72mm (see dimension drawing)
Material of Impeller	Propylene with glass-fiber reinforced
Mounting Position	Any
Surface of Rotor	Coated in black
Bearing System	NMB ball bearing
Lead Wire	DC(AWG24 #)
Weight	900g
Package	Standard

3.Environmental Characters

Locked-rotor Protection	Over-current limiting circuit protects motor from damage at least for 72 hours of locked rotor condition at rated voltage.
Maximum Current under Locked Rotor	A, Typical inrush current when the motor is trying to re-start under locked rotor conditions is 2~4 times the normal running current reoccurring and for 16~20% of restarting cycle period. B, If he CL function is used this restarting inrush current is about the same as the normal running current.
Reverse Polarity Protection	No damage if the positive and negative leads are reversed under maximum operation voltage conditions.
Over Voltage Protection	The circuit will be shut down automaticlly when input voltage over threshold. And re-started when Voltage down to threshold below.
Soft Start	In 5 seconds after power on and speed control voltage gets to 1.5V or PWM duty cycle at 10% above.

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Certificate Show:UL / CE / Rohs
Application Scopes:Ventilation & Purification / Air Conditioning / Refrigeration /  IT & Electronic Industry / Medical Industry / Heating / Automotive Industry / Household Electric Appliances / Cloud Date Center / Mechanical Equipment and Systems.
About PBM:High Quality EC Fan / Competitive Price / Strong Team / Long Life Expectance / Fast Delivery / Customization Available / Attentive Service / Professional Assistance
Laboratory / Packing Method / Workshop / Warehouse


FAQ
Frequently Asked Question
Q: What are electronically commutated motors?
Electronically Commutated motors are brushless DC motors where the direction of the electric current is switched using electronic controllers. As the switching of the current is technically known as 'commutating', brushless motors are also called 'electronically commutated' motors. EC motors provide the advantages of brushed DC motors in terms of the ability to have variable speed control, but without the drawbacks of brushes.
Q: What are the advantages of EC motors?
EC motors are very high efficiency electric motors (80%) and maintain a high efficiency level at part speed. This means that in most cases they use less than one third to half of the electricity used by                    traditional induction motors, which in turn translates into lower operating costs and short payback periods. As EC motors have a higher efficiency this ensures that the motors run cooler in application which ensures a longer life for the motor.
In terms of speed control and features, because the motor's operation is controlled by software, EC motors allow customers to optimize and integrate the motor, fan and controller with the application, and to include features like data communications, constant volume control, variable speed.
Features & Advantages
Q: What about cost?
The initial outlay for an EC motor is more expensive than the traditional induction / shaded pole motors and this is mainly due to the electronic components required to drive the commutation. In recent years the cost of electronic components has reduced dramatically as volumes increase.
The huge energy savings provided by EC motors, mean equally large savings in operating costs, which in turn translate in payback periods as short as a few months combined with a longer life expectancy.
In our case, together with high energy savings, low use of raw material, low part count and simple electronics, have allowed us to make our motor price very competitive.
Q: How are EC motors 'sustainable'?
The huge energy savings provided by our EC motors directly translate into large carbon emissions savings.
By using an EC motors in your application we are able to assist our customers in dramatically reducing the air pollution (CO2) generated by their applications. This is due to the motors high efficency & low energy costs which helps to preserve the world for a 'greener' future.
EC Motors are designed & manufactured using 70% less copper and 80% less steel than traditional induction and shaded pole motors which has a dramatic reduction in environmental impact in producing these raw material components.
services to the clients.
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