250mm Low Noise 360 Degree up Blast Ec Centrifugal Exhaust Fan with PWM

• Material: Plastic
• Blade Material: Propylene with Glass-Fiber Reinforced
• Type: Centrifugal Fan
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: PB3N250B2EM
• Electric Current Type: AC
• Mounting: Free Standing
• Certification: RoHS, ISO, CE
• Fan Feature: 0~10VDC/PWM Speed Control, Tach Output
• Rated Voltage: 230 VAC
• Rated Speed: 2780 Rpm
• Air Flow: 1000.45 Cfm / 1700 M3/H
• Static Pressure: 2.86 Inh2o / 716 PA
• Acoustical Noise: 75 dB(a)
• Insulation Class: Class B
• Protection Type: IP44
• Signal Output: Fg (Frequency Generator)
• Dimension: 250mm X 118mm
• Material of Impeller: Galvanized Metal Shell
• Number of Blades: 11
• Bearing System: NMB Ball Bearing
• Operating Temperature: -25ºC to 60ºC
• Transport Package: Standard
• Specification: CE
• Trademark: PBM
• Origin: Suzhou
• HS Code: 84145930
• Production Capacity: 50, 000PCS/Year
• Package Size: 34.00cm * 34.00cm * 24.00cm
• Package Gross Weight: 3.270kg

Product Description

250mm Low Noise EC Centrifugal Exhaust Fan with PWM
Model:PB3N250B2EM

1.General Character

Model	PB3N250B2EM
Rated Voltage	230VAC
Operating Voltage	184-276VAC
Rated Speed	2780RPM
Input Current	1.13A
Input Power	155W
Air Flow	1700 m3/H / 1000.45CFM
Static Pressure	716 Pa / 2.86inH2O
Acoustical Noise	75 dB(A)
Life Expectance	50,000 Hours(L10)    At 40ºC room, humidity 15%~65%RH.
Insulation Class	Class B
Motor Protection	Locked rotor protection   Polarity protection   Automatic restart capability
Speed Control	Control input 0~10VDC / PWM
Protection Type	IP44
Signal Output	FG (Frequency Generator)

2.Mechanical Character

Dimension	Ø250mm X 118mm (see dimension drawing)
Material of Impeller	Galvanized Metal Shell
Number of Blades	11
Bearing System	NMB ball bearing
Lead Wire	AC(AWG20#),DC(AWG22 #)

3.Environmental Character

Operating Temperature	-25ºC to 60ºC
Storage Temperature	-40ºC to 75ºC
Operating Humidity	5% to 90% RH
Storage Humidity	5% to 95% RH

4.Performance Curve


5.Outline Drawing

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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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