Description
Product descriptions from the supplier
AC /DC/EC backward centrifugal fans 400 mm diameter lower noise high efficiency exhaust fan for HVAC , 400 mm diameter 2018 best price centrifugal blower exhaust fan
Product Overview
DC Φ400 Backward Centrifugal Fan
Drawing :
Data Sheet
Performance Curves
| Centrifugal Blower Sizes |
133mm – 400mm (or Customized) |
| exhaust fan Sizes | 133mm – 630mm (or Customized) |
|
Voltage |
AC Input: 210v,220v,230v,380v,400v DC Input: 12v,24v,48v EC Input: 210v,220v,230v,380v,400v (or Customzied) |
| Power |
Up to 2300W (or Customized) |
| Speed | Up to 4000RPM (or Customized) |
| Air Flow | Up to 8000m³/h (or Customized) |
| Speed control | Speed Controller (AC) or PWM/0 – 10V Input (DC EC) |
General Characters
| 1 | Life Expectance |
50,000Hours(L10) At 40℃ room, humidity 15%~65%RH. |
| 2 | Direction of Rotation |
Anti-clockwise seen on motor |
| 3 | Direction of Air Flow | All around |
| 4 | Insulation Class | Class B |
| 5 | Insulation Resistance |
50 Mega Ohm minimum at 1000VDC Between frame and (+) terminal |
| 6 | Motor Protection |
Locked rotor protection Polarity protection Automatic restart capability |
| 7 | Speed Control | Control input 0~10VDC / PWM |
| 8 | Protection Type | IP44 |
| 9 | 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.) |
| 10 | Dielectric Strength |
10mA maximum at 1500VAC 50Hz five second Between frame and (+) terminal |
| 11 | Signal Output | FG (Frequency Generator) |
Electrical Protection
| 1 | Locked-rotor Protection | Over-current limiting circuit protects motor from damage at least for 72 hours of locked rotor condition at rated voltage. |
| 2 |
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. |
| 3 | Reverse Polarity Protection | No damage if the positive and negative leads are reversed under maximum operation voltage conditions. |
| 4 | Over Voltage Protection | The circuit will be shut down automatically when input voltage over 284VAC. And re-started when Voltage down to 284VAC below. |
| 5 | Soft Start | In 5 seconds after power on and speed control voltage gets to 1.5V or PWM duty cycle at 10% above. |
1.Are you a manufacturer ?
Yes, we are . we own over 10 production lines for different products .
2.How is your quality ?
Aboove average and top class quality are your options in our range , The quality is pretty good,and trusted by many customers in overseas .
our quality is abov the average according customer same budget , customer have 1 year warranty , and free after sales technical support in product designed life span .
3. How is your price ?
Our price is very competitive by large scale production contribution .
4.What’s your lead time ?
7days -25days , depengs on volume and different items .
5.How is your responding time ?
You will get reply within 2hours online by Wechat ,Whatsapp , Skype , trade manager .
You will get respond within 8hours offline by email .
Mobile is always availble for picking up your calls .
Contact Details :
centrifugal exhaust blower fan
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