DC Centrifugal Fan with Low Noise and Hight Efficiency
PBM Motor and Fan is a China mainland manufacturer and EC technology consulting company offering an extensive range of EC(Electronically Commutated) motors, fans and solutions, investing in the latest developing, manufacturing and technical equipment with in-depth processes & procedures. Our main products are EC fans, including EC axial fans, EC centrifugal fans and EC blowers. We do both AC and DC current type. And EC Motor is the core technology of our products.
Eletronically Commutated Motors(EC Motors)also known as Brushless DC Motors(BLDC) are synchronous electric motors powered by direct-current(DC) electricity and having electronic commutation systems,rather than mechanical commutators and brushes.The current-to-torque and voltage-to-speed relationships of BLDC motors are linear.
PBM fans are widely used in many fields. For example, axial fan for telecom, backward curved centrifugal fan for air exchanger,(inline duct fan)hydroponic products and FFU, forward curved centrifugal fan for air purifier and air conditioning,blower for kitchen.
Fan type:dc centrifugal fan
Rated Voltage: 24 VDC
Operating Voltage: 16~28 VDC
Low-Start Voltage: 15 VDC
Rated Speed:2650RPM
Input Current: 3.74A
Input Power: 90W
Air Flow: 589CFM / 1000m3/H
Static Pressure: 2.2inH2O /550Pa
Acoustical Noise:73dB(A)
Life Expectance: 50,000Hours(L10)
At 40ºC room, humidity 15%~65%RH.
Direction of Rotation: Anti-clockwise seen on motor
Direction of Air Flow: All around
Insulation Class: Class B
Insulation Resistance: 50 Mega Ohm minimum at 500VDC
Between frame and (+) terminal
Motor Protection: Locked rotor protection
Polarity protection
Automatic restart capability
Speed Control: Control input 0~10VDC / PWM
Protection Type:IP44
Dielectric Strength:5mA maximum at 500VAC 50Hz five second
Between frame and (+) terminal
Signal Output:FG (Frequency Generator)
Mounting Position:Any
Bearing System:NMB ball bearing
Lead Wire:Red , Blue AWG18#; Yellow, White AWG22#
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 automatically when input voltage over 60VDC. And re-started when Voltage down to 60VDC below.
Soft Start:In 5 seconds after power on and speed control voltage gets to 1.5V or PWM duty cycle at 10% above.
| Model | Motor Type | Bearing
System | Rated
Voltage | Operating
Voltage | Rated
Current | Rated Power | Rated
Speed | Air Flow | Air
pressure | Noise
Level |
| Part NO. | Type | B / S | VDC | VDC | A | W | RPM | M3/H | Pa | dBA |
| PB3N250B24H | BE92DC | BALL | 24 | 16~28 | 3.74 | 90 | 2,650 | 1000 | 630 | 73 |
| PB3N250B48H | BE92DC | BALL | 48 | 36~57 | 1.87 | 90 | 2,650 | 1000 | 630 | 73 |
PBM Motor and Fan is a China mainland manufacturing and EC technology consulting company offering an extensive range of EC(Electronically Commutated) motors, fans and solutions, Investing in the latest developing, manufacturing and technical equipment with in-depth processes & procedures. We are able to stay at the forefront of EC motor and fan market and offer high quality & economical products, to many of the worldwide leading ventilation & refrigeration Original Equipment Manufacturers.
Our engineers have rich experience in supplying cost effective motor and fan solutions to exceed customer' S expectations. We understand that each customer' S application is different, and by understanding our customer' S needs in site allows us to offer the most cost effective solution.
From 2010, with China motor manufacturing industry was losing its advantage in material and labor cost, PBM Motor and Fan started to offer consulting service to abroad EC motor manufacturers who expected to organize motor assembly in their own countries for EC technology input and cost down.
Protecting our World with Energy Efficient Motor Solutions' Is our goal in an attempt to make tomorrow a greener & healthier world.
Please feel free to contact our Product Support or Sales Department to discuss your application requirements.
