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Air Flow EC AC Centrifugal Extractor Fan For Air Exchanger With External Rotor

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Air Flow EC AC Centrifugal Extractor Fan For Air Exchanger With External Rotor

Brand Name : OFAN
Model Number : LD280C-230D3-01
Certification : CE ROHS
Place of Origin : China
MOQ : 1
Price : negotiation
Supply Ability : 10000PCS
Power : 170W
Rated Speed : 2150RPM
Air Flow : 1900m³/h
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Air Flow Evenly Wall Fan With Ventilating Units For Ld280c-230d3-01

  • EC-motors, high level of efficiency
  • 100% speed controllable
  • Integrated motor protection
  • Supplied with mounting bracket

EC technology is intelligent technology; using integral electronic control which eliminates the slip losses in the motor and ensures that the motor always runs at optimal load and guarantees that the proportion of energy utilised effectively is many times higher and the energy usage considerably lower compared with AC motors.

1. Enable the selection of different power levels thus to get the best match of price and performance according to customers’load requirements

2. As the rotor is mounted to interior, the external rotor fan is more compact constructed, smaller and easy to abstract heat., thus ensure to maximum the reliability of fan operation

Electrical Protection

3-1Locked-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.

3-3Reverse Polarity Protection

No damage if the positive and negative leads are reversed under maximum

operation voltage conditions.

3-4Over Voltage Protection

The circuit will be shut down automatically when input voltage over 60VDC.

And re-started when Voltage down to 60VDC below.

3-5Soft Start

In 5 seconds after power on and speed control voltage gets to 1.5V or PWM

duty cycle at 10% above.

Product Tags:

industrial centrifugal blower


centrifugal fans and blowers

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