Original listing photograph showing the front impeller and centrifugal blower housing of NMB BL4447-04W-B49-71; physical dimensions and supplied connector require verification.
Original listing rear-label photograph showing NMB FLOWMAX BL4447-04W-B49-71, DC12V 2.0A and visible leads; confirm the supplied version, dimensions and pin assignment.
Original listing photograph showing the front impeller and centrifugal blower housing of NMB BL4447-04W-B49-71; physical dimensions and supplied connector require verification.
Original listing rear-label photograph showing NMB FLOWMAX BL4447-04W-B49-71, DC12V 2.0A and visible leads; confirm the supplied version, dimensions and pin assignment.
Technical media Confirm label, connector and fit
Original listing rear-label photograph showing NMB FLOWMAX BL4447-04W-B49-71, DC12V 2.0A and visible leads; confirm the supplied version, dimensions and pin assignment. Fan label photo
Original listing photograph showing the front impeller and centrifugal blower housing of NMB BL4447-04W-B49-71; physical dimensions and supplied connector require verification. Connector photo
Original listing photograph showing the front impeller and centrifugal blower housing of NMB BL4447-04W-B49-71; physical dimensions and supplied connector require verification. Dimension drawing
NMB

NMB BL4447-04W-B49-71 12V DC 2A Centrifugal Blower

Available: Confirm availability
Compatibility checkpoint

Confirm Fit Before Ordering

Use this quick check first, then review the full Product Specifications tab before placing an order.

Before ordering: Compare the original fan label, frame size, rated voltage/current, connector, wire count, airflow direction and mounting holes.
Confirm availability View full specifications Send fan photos
Price
$20.99
Need confirmation before ordering?

Share the original fan label, connector photo, or target quantity so the team can check compatibility or quote bulk supply.

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Reference model: BL4447-04W-B49-71

Product Specifications

Review the technical data used for replacement matching, procurement comparison and engineering approval.

Technical Specifications

Brand NMB
Mfr. Part Number BL4447-04W-B49-71
Frame Size Verification required
Rated Voltage 12V DC
Rated Current 2A
Product Category Industrial Cooling Fan

Notice: This is an industrial component. Please verify frame size, voltage, and connector type before replacement.

Photographed label and fit verification: The original listing photographs show NMB FLOWMAX BL4447-04W-B49-71, DC12V and 2.0A, with a centrifugal blower housing. The photographs do not establish physical dimensions or the version currently supplied. Confirm the full supplied label, measured housing and mounting, connector and pin assignment before ordering.

Replacement confirmation

Compatibility Verification Checklist

Before ordering, please confirm these critical points:

  1. 1
    Exact model number on the original fan label
  2. 2
    Frame size: length, width and thickness
  3. 3
    Rated voltage and current
  4. 4
    Connector type and wire sequence
  5. 5
    Wire count: 2-wire, 3-wire or 4-wire PWM
  6. 6
    Airflow direction and mounting hole position
  7. 7
    Cable length and application environment

Still unsure? Send us photos of your fan label, connector and equipment. We will help check compatibility before you order.

Send Fan Photos Ask for Compatibility Check

Datasheet / Drawing

Use official documents and dimensional references when available. If a document is missing, contact us before ordering for replacement matching support.

Datasheet URL Contact us to confirm
Dimension drawing View drawing image

Bulk Order

For repair batches, OEM projects or distributor replenishment, send the model number, target quantity, connector requirements and delivery destination.

Reference model BL4447-04W-B49-71
Manufacturer / brand NMB
Request Bulk Quote

Shipping & Returns

Shipping options, lead time and return eligibility may vary by product, quantity and destination. Confirm compatibility before ordering replacement fans.

  • For bulk orders, request freight planning and availability confirmation before payment.
  • For replacement orders, compare model, size, voltage, current and connector before installation.
  • Unused items should remain in original condition for return review according to store policy.

FAQ

Common checks for replacement cooling fan sourcing.

Can you help match an old fan?

Yes. Send photos of the fan label, connector and equipment so we can check model, voltage, frame size and wiring.

Can I use a different brand as a replacement?

Often yes, but only after confirming frame size, electrical rating, airflow requirement, bearing type, connector and wire sequence.

What information is needed for a bulk quote?

Send part number, quantity, target lead time, connector or cable requirements and shipping destination.