PFB1224UHE
PFB1224UHE
PFB1224UHE
PFB1224UHE
PFB1224UHE
PFB1224UHE
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PFB1224UHE

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Delta Electronics PFB1224UHE is a 120 mm 24 V DC brushless axial fan rated for high-airflow equipment cooling.
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Technical specifications for PFB1224UHE

  • Manufacturer:
    Delta Electronics
  • Part Number:
    PFB1224UHE
  • Product Family:
    Delta Electronics
  • Product Type:
    120 mm DC Brushless Axial Fan
  • Stock:
    1
  • Rated voltage:
    24 V DC
  • Operating voltage:
    14–26.5 V DC
  • Rated current:
    2.00 A
  • Maximum current:
    2.40 A
  • Rated power:
    48.0 W
  • Maximum power:
    57.6 W
  • Rated speed:
    5500 rpm
  • Minimum airflow:
    252.85 CFM
  • Minimum static pressure:
    35.877 mmH2O
  • Maximum noise level:
    70.5 dB(A)
  • Bearing system:
    Two ball bearings
  • Rotation:
    Clockwise viewed from the nameplate side
  • Lead wires:
    AWG 24 red positive and black negative
  • Operating temperature:
    -10 to 60 °C
  • Locked-rotor protection:
    Provided
  • Polarity protection:
    Provided
  • Expected life:
    70,000 hours at 40 °C and 15–65% RH
  • Weight:
    0.838 lbs (0.38 kg)
  • Estimated shipping dimensions:
    12x12x3.8cm
  • Tariff Code:
    8414599050
  • Country of origin:
    China / Thailand / Taiwan
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Airflow Path Motor & Leads Protection Environment

Features:

  • Moves at least 252.85 CFM through a 120 mm square frame at the rated operating point.
  • Runs from a protected 24 V DC brushless motor with red and black AWG 24 leads.
  • Uses two ball bearings and clockwise nameplate-side rotation for the documented service-life rating.
Delta Electronics PFB1224UHE places its motor and impeller inside a 38 mm-deep open fan frame.

The operating point links airflow, static pressure, speed and electrical loading rather than presenting those values as unrelated limits.

Locked-rotor and polarity protection act on the power path while the bearing system supports continuous rotation.

The Delta Electronics PFB1224UHE 120 mm DC Brushless Axial Fan is available for quotation, manual support, and product selection through Apter Power.
Delta Electronics PFB1224UHE DC Brushless Axial Fan Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

How Air Moves Through the Fan

  • Axial route: Air enters and leaves along the fan axis rather than turning through a centrifugal housing.
  • Impeller reference: The impeller rotates clockwise when PFB1224UHE is viewed from the nameplate side.
  • System resistance: The delivered airflow follows the pressure-versus-airflow curve as guards, filters or ducts add resistance.
  • Frame boundary: The 120 mm square opening and 38 mm depth define the mechanical airflow passage through the equipment.

DC Supply and Motor Circuit

  • Supply pair: The red AWG 24 lead carries positive DC power and the black lead returns it to the source.
  • Permitted input: The brushless drive must remain inside the documented 14–26.5 V DC operating window.
  • Load relationship: Motor current and input power increase from their rated values toward the documented maxima as fan load changes.
  • Commutation path: The internal electronic drive commutates the brushless motor, so the two external leads provide power rather than phase connections.

Electrical Fault Response

  • Blocked impeller: Locked-rotor protection limits the electrical effect of a fan that cannot start or continue turning.
  • Reversed leads: Polarity protection prevents a reversed DC connection from being treated as the normal supply direction.
  • Insulation check: The specified insulation-resistance test verifies separation between the live motor circuit and the fan frame.
  • Dielectric check: The withstand-voltage test applies a separate short-duration stress to that same insulation boundary.

Operating and Life Boundaries

  • Powered operation: PFB1224UHE is specified for operation from -10 to 60 °C within the documented humidity range.
  • Unpowered storage: The wider -40 to 75 °C range applies while the fan is stored rather than running.
  • Moisture limit: Operating and storage humidity limits are non-condensing boundaries for the motor and insulation system.
  • Life condition: The 70,000-hour life figure is tied specifically to 40 °C and 15–65% relative humidity.
Description
Delta Electronics PFB1224UHE is a 120 mm DC brushless axial fan in the PFB series. Its 24 V motor turns the impeller at 5500 rpm to move cooling air through electronic equipment while the 38 mm frame fixes the mounting depth.

Power for Delta Electronics PFB1224UHE enters through the red positive and black negative AWG 24 leads. The internal drive accepts the documented operating-voltage range, while polarity and locked-rotor protection prevent reverse connection or a stalled impeller from becoming an uncontrolled electrical load.

Across the fan frame, Delta Electronics PFB1224UHE develops the specified airflow against static pressure rather than treating airflow and pressure as independent ratings. Two ball bearings support clockwise rotation, and the operating-temperature and humidity limits define the environment in which the service-life rating applies.
Alternative Names
PFB1224 UHE PFB 1224 UHE PFB1224UHE-R00 Delta PFB1224UHE Delta Electronics PFB1224UHE PFB1224UHE DC Fan PFB1224UHE 24VDC Fan PFBI224UHE
Technical notes
Delta Electronics PFB1224UHE combines a 24 V brushless motor, two ball bearings, protected power input and a 120 mm airflow path.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which power connections operate Delta Electronics PFB1224UHE?
Connect the red AWG 24 lead of Delta Electronics PFB1224UHE to positive 24 V DC and the black lead to the negative return.
Why can Delta Electronics PFB1224UHE airflow fall below its free-air value?
System resistance moves Delta Electronics PFB1224UHE along its pressure-versus-airflow curve, so ducts, filters and guards reduce delivered airflow.
How is the rotation direction of Delta Electronics PFB1224UHE identified?
Delta Electronics PFB1224UHE rotates clockwise when viewed from the nameplate side, which also identifies the reference side used in the specification.
What protects Delta Electronics PFB1224UHE if its rotor is blocked?
The locked-rotor protection in Delta Electronics PFB1224UHE controls the motor input while the impeller cannot turn; the obstruction must still be removed before service.
Can Delta Electronics PFB1224UHE run directly from an unregulated supply?
The applied source for Delta Electronics PFB1224UHE must remain inside 14–26.5 V DC under all load and ripple conditions.
Which condition governs the life rating of Delta Electronics PFB1224UHE?
The stated service-life figure for Delta Electronics PFB1224UHE applies at 40 °C with relative humidity held between 15% and 65%.