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Home > AC Axial Flow Fan

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250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor

250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor

-Backward Centrifugal Fan Sizes: 133mm ~ 560mm
-Forward Centrifugal Fan Sizes: 120mm ~ 250mm
-Axial Fan Sizes: 200mm ~ 710mm
-Power: Up to 2300W
-Speed: Up to 3300RPM

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Products Description


Backward Centrifugal Fan Sizes
133mm ~ 560mm
Forward Centrifugal Fan Sizes
120mm ~ 250mm 
Axial Fan Sizes
200mm ~ 710mm
Voltage
AC Input: 210V, 220V, 230V, 380V, 400V
DC Input: 12V, 24V, 48V
EC Input: 210V, 220V, 230V, 380V, 400V (or customized)
Power
Up to 2300W
Speed
Up to 3300RPM 
Airflow
Up to 24000m3/h
Speed Control
Speed controller (AC) or PWM/0-10V Input (DC&EC)
Approvals
CCC, CE, RoHs, UL, CUL



AC/EC/DC External Rotor Motor Powered Backward Curved Centrifugal Fan

 
1. The external rotor motor powered centrifugal fan has the characteristics of compact structure, reliable operation, low noise, easy installation, and high efficiency, etc.

2. There are single-phase and three-phase power input types for the external rotor motor powered centrifugal fan. And the centrifugal fans are widely used in the industries of air conditioning terminal system, IT & Telecom, FFU, Fresh air system, and ventilation, etc.

3. There's a built-in thermal protector for the single-phase motor, and the motor can be operated in the temperature from -30 to 60 degrees Celsius. If the customer needs a built-in thermal protector for the three-phase motor, please note us while placing the order.

4. The speed of the motor can be controlled by a transformer or VFD. We also can change the speed by changing the motor's △- and Y-wiring for the three-phase motor, and by using the shifts taps vary method for single-phase motor.

5. We would need the operating point parameters of the motor such as speed, power, and even the assembly size if the customer is only ordering the motor for their application. To get a suitable motor performance, we would prefer an impeller and housing for doing testing and research if the customer is going to use the motor for powering their centrifugal impeller.

6. Noise Level. The noise level defined for our motor fan is the sound pressure level. The distance for doing the noise level test is 1m from the test point to the inlet hose according to the national standard requirements.

7. Average of our motors The bearing used on our motor is a maintenance-free ball bearing, and the average life rating is L10 which is between 30,000 to 50,000 hours based on different operating conditions.

8. The external rotor motor powered fans are CCC, CE, UL, and CUL approved.

Specification

>>> Backward Centrifugal Fan
• Please click on the model you want to see the details and prices

 
133mm AC/EC
190mm AC/EC/DC
250mm AC/EC/DC
315mm AC
450mm AC/EC
 
175mm AC/EC
220mm AC/EC/DC
280mm AC/EC/DC
355mm AC/EC/DC
500mm AC/EC
180mm AC
225mm AC/EC/DC
310mm EC/DC
400mm AC/EC/DC
560mm AC

250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor manufacture250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor factory250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor factory

Model Nominal Voltage (V) Frequency (Hz) Current (A) Input Power (W) Speed (RPM) Capacitor (μF) Airflow m³/h/CFM Noise (dB)
DYWF.B2S-250-077AB00 220/230 50 0.76 167 2620 7 1300/765 75
DYWF.B4S-250-077AB00 220/230 50 0.26 50 1400 2 710/410 59
DYWF.B4S-250-077AB00 220/230 60 0.26 58 1650 2 840/485 —
Material of Impeller: PA6
Material of Rotor: Aluminum casting
Protection Class: IP44
Insulation Class: F
Bearing System: Maintenance-free ball bearing
Operating Temperature: -30℃ to +60℃
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor details
Model Nominal Voltage (V) Frequency (Hz) Current (A) Input Power (W) Speed (RPM) Noise (dB) Applicable Temp. (℃)
DEC72-B250 220/230 50/60 0.87 105 2450 78 -20 ~ +60
DEC92-B250 220/230 50/60 1.15 150 2800 82 -20 ~ +60
DEC102-B250 220/230 50/60 1.6 350 3300 74 -20 ~ +60
DDC92-B250 24/48 / 4.8/2.4 115 2500 77 -20 ~ +60
Material of Impeller: PA66
Material of Rotor: Aluminum casting
Protection Class: EC: IP44/DC: IP42
Insulation Class: B
Bearing System: Maintenance-free ball bearing
Wire Diagram: Contact us for details
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor supplier
NO.
Speed (RPM)
Input Power (W)
1
2452
113.1
2
2324
121.1
3
2206
118.2
4
2167
121.8
5
1958
59.24
6
1959
68.4
7
1959
77.9
8
1959
84.6
Mechanical Parameter (only for EC/DC, not suitable for AC motor fan):
Life Expectance
50,000Hours(L10)
At 40℃ room, humidity 15%~65%RH.
Direction of Rotation
Anti-clockwise
Direction of Air flow
All around
Insulation Class
B/F
Bearing
Maintenance-free ball bearing
Motor Protection
Locked rotor protection;
Reverse Polarity protection;
Automatic restart capability.
Speed Control
PWM/0-10V Input
Protection Type
IP44/IP54
Operating Temperature
-20℃  to +60℃
Voltage Output
+10VDC (Can be used as speed control input voltage or FG signal pull-up voltage,and need to be circumscribed in series with a pull–up resister, details as connection diagram.)
Signal Output
FG (Frequency Generator)
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor supplier
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor supplier
Main Application
>> Backward Curved Centrifugal Fan

Suitable for large air volume, high static pressure, large system resistance, high noise requirements.

         
          •  Air Purification
          •  Ventilating Units
          •  Air-conditioning Terminals
          •  Air-conditioning Fans
          •  Floor Ventilation
          •  Heat Pumps,
          •  Ground Source Heat Pumps
          •  Air Source Heat Pumps
          •  Roof Fans
          •  Filtration
          •  FFU
          •  Other related Industries
Company Profile
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor details


Zhongshan Pengfei Electric Appliance Co., Ltd
was founded in 2004, is located in Dongsheng Town, Zhongshan City, where it is an industrial town, specializing in micro motor accessories, motor research, development, and production.Our company has more than 50 independent intellectual property patents. We have passed ISO9001quality system certification and environmental protection certification. According to the customer requirements of different markets, it has produced products that confirmed with the certification standards of CE, CQC, ROHS and so on. We have more than 20000 square meters of production workshop. Fix equipment includes high-speed punches, automatic die casting machines, injection molding machines, robots, mold development equipment, motor testing equipment and so on. All kinds of molds are more than 2000 sets. And we have more than 10000 kinds of motor accessories products, the main products are motor stator and rotor chips, motor zinc, and aluminum brackets(end covers), motor insulation coil skeletons and other motor hardware and plastic products. We have been named as a "micro motor accessories supermarket" in the industry.


250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor details

With many advanced production equipments, we guarantee the quality and delivery time in the development and production of motor, design the most optimized products according to the cost and quality requirements provided by customers.


250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor details

we are pound to accumulate wide and international customers with stable product quality and excellent technological advantages. If you are looking for a reliable supplier in custom electric motors, we believe we are your correct choice and trustworthy partner in China.
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor manufacture
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor factory
Certifications and Patents
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor factory
Our Advantages
250mm AC EC DC High Pressure Backward Curve inline Centrifugal Fan Motor details
FAQ
Q: How is the quality control of your company?
A: Based on customers' requirements, we produce products that meet 3C, CE, RoHS, UL certificates standard.
 
Q: Are you providing samples?
A: Yeah, stock samples are free and can be delivered when you place a sample order, you only need to pay the freight.

Q: What is your payment term?
A: 30% deposit in advanced and 70% balance before shipment.

Q: How do you guarantee the manufacture time and shipment?
A: We have an integrated manufacturing chain, more than 2000 sets of molds, rich experienced R&D team.

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