PFB1224UHE Delta 24V 252.85 CFM DC Axial Fan

The Delta PFB1224UHE is a high-airflow 24V DC axial fan designed for servers, telecom equipment, industrial power systems and electronic cabinets with demanding cooling requirements. Its 120 × 120 × 38mm dimensions correspond to the commonly used 12038 fan format.

Operating at 5500 RPM, the PFB1224UHE delivers 252.85 CFM airflow and maximum static pressure of 1.412 inchH2O. It can move air through dense heat sinks, filters, radiators and restricted equipment enclosures where standard low-pressure fans may not provide sufficient cooling.

The fan uses ball bearings and has a rated service life of 70,000 hours at 40°C. Its 66.5 dB(A) noise level makes it more suitable for industrial and server applications where cooling performance has priority over quiet operation.

Technical Specifications

Applications

The PFB1224UHE is suitable for high-performance cooling in:

• Rack-mounted servers

• Data-storage systems

• Network switches and routers

• Telecom base-station equipment

• Industrial power supplies

• UPS and battery-charging systems

• Inverters and motor drives

• Automation control cabinets

• Test and measurement equipment

• High-power electronic enclosures

• Equipment with dense heat sinks or restricted airflow

24V Power Requirements

The PFB1224UHE requires a nominal 24V DC supply and draws 2.00A at its rated operating point. The power source, connector and wiring must support the fan’s continuous current and startup requirements.

For equipment using several PFB1224UHE fans, the total 24V power budget should be calculated before installation. Undersized wiring or connectors can produce excessive voltage drop, heat or unstable fan operation.

The PFB1224UHE should not be connected directly to a 12V or 48V fan supply.

PFB1224UHE vs PFB1248UHE

PFB1224UHE and PFB1248UHE share the same 120 × 120 × 38mm frame and provide similar airflow, static pressure and rotational speed. Their main difference is the required supply voltage and current.

The two models are mechanically similar but are not direct electrical replacements. The equipment supply voltage must match the selected fan.

PFB1224UHE Replacement Selection

A compatible replacement should match the following requirements:

• 120 × 120 × 38mm mechanical dimensions

• 24V rated supply

• Mounting-hole positions

• Airflow and static-pressure curve

• Rated and startup current

• Two-wire or signal-wire configuration

• Connector type and pin assignment

• Tachometer, alarm or PWM requirements

• Airflow and rotation direction

• Noise limits

• Operating temperature and bearing life

PFB1224UHE-R00 and other suffix versions may use additional signal wires or different monitoring functions. An OEM version may also have a custom connector, wire length or pin sequence. The complete part number and fan label should be verified before ordering.

Stock and Lead Time

Stock and delivery time depend on order quantity, production lot and any required suffix or connector configuration. DataStorageIC can support PFB1224UHE sourcing and provide compatible 24V replacement fans based on size, airflow, static pressure, power, wiring and installation requirements.

Send the complete fan label, required quantity, connector photo and equipment application to request PFB1224UHE stock, price, lead time or replacement recommendations.