280mm DC Axial Fan with Low Noise

Prod Model:	PA3N250B24H
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Fan Feature:	0~10VDC/PWM Speed Control, Tach Output
Usage:	Telecom Station, Heat Exchanger, Free Cooling Unit
Cooling Method:	Direct Cooling
Blade Material:	Stainless Steel
Electric Current Type:	DC
Certification:	CE

Product Description

280mm DC Axial Fan with Low Noise

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:axial fan
Rated Voltage: 24 VDC
Operating Voltage: 16~28 VDC
Low-Start Voltage: 15 VDC
Rated Speed: 2750RPM
Input Current: 4.4A
Input Power: 105W
Air Flow: 1119CFM / 1900m3/H
Static Pressure: 0.88inH2O / 220Pa
Acoustical Noise: 69dB(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: axial
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	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
PA3N250B24H	BE92DC	BALL	24	16~28	4.4	105	2,750		1900	220	69
PA3N250B48H	BE92DC	BALL	48	36~57	2.2	105	2,750		1900	220	69