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Proventofan DC axial fan range, 225mm to 450mm frame sizes, 24V 48V 110VDCFig. 01Brushless DC225–450mm24 · 48 · 110VDC

CE Marked

DC Axial Fan

Industrial 225–450mm models for 24V, 48V and 110VDC systems

Proventofan's DC axial fan range covers 225mm to 450mm frame sizes in 24V, 48V and 110VDC, with 14 models from 1,200 to 6,150 m³/h. Compare full specifications below, then request performance curves and dimensional drawings for the models that fit. Once you've confirmed voltage and control interface, send your operating point for an OEM quote.

Send RFQ Request Datasheet
225–450mmFrame Size Range
24 / 48 / 110VDCDC Voltage Options
1,200–6,150 m³/hMax Airflow Range
135–290 PaMax Static Pressure
0–10V / PWM / RS-485Control Interface
IP44Protection Rating
02 / FRAME SIZES

Choose the Frame Size

Max airflow by frame size

  1. 225mm1,205 m³/h
  2. 250mm1,920 m³/h
  3. 254 × 89mm1,200 m³/h
  4. 300mm2,300 m³/h
  5. 350mm4,000 m³/h
  6. 400mm5,500 m³/h
  7. 450mm6,150 m³/h
Proventofan 225mm square-frame DC axial fan F3D200AN, 24V/48V
225mm

225mm Square-Frame DC Axial Fan

Models F3D200AN24-90 and F3D200AN48-90 use a 200mm impeller inside a 225×225×80mm square outer frame, on 24V or 48V, on the BLDC92 motor platform. Full electrical specifications are in the model table below.

  • Impeller size (200mm) and outer frame dimension (225×225×80mm) are two different numbers. Both are correct, and drawings referencing either are valid for this series.
  • A metal-impeller configuration with an electrophoresis-coated die-cast aluminum impeller is available for this frame. One automation-equipment customer specifically requested this configuration for a 225×225×80mm, 24V sample project. Metal construction may be considered where mechanical stability is an important design requirement. Ask about metal-impeller availability if your application needs it.
Ask About This Series
Proventofan 250mm nominal DC axial fan F3D250AN, 280x280x80mm outer frame
250mm

250mm Nominal DC Axial Fan, 280 × 280 × 80mm Outer Frame

Models F3D250AN24-90 and F3D250AN48-90 use a nominal 250mm impeller inside a 280×280×80mm outer frame, on 24V or 48V.

  • Nominal size (250mm) and outer frame dimension (280×280×80mm) are two different numbers. Both are correct, and drawings referencing either are valid for this series.
Ask About This Series
Proventofan 254x89mm DC radiator and condenser fan F3D254AR, 24V/48V
254 × 89mm

254 × 89mm Radiator and Condenser Fan

Models F3D254AR24-90 and F3D254AR48-90 are φ254×89mm, on 24V or 48V. This DC radiator fan size's 89mm-deep configuration is intended for industrial radiator and condenser mounting, not automotive radiator applications.

  • Available in 24V and 48V versions.
  • Not intended for automotive replacement or repair applications.
  • Same metal-impeller option available as the 225mm and 250mm series (electrophoresis-coated die-cast aluminum).
Ask About This Series
Proventofan 300mm DC axial fan F3D300PN, 24V/48V
300mm

300mm DC Axial Fan

Models F3D300PN24-90 and F3D300PN48-90 are φ300mm, on 24V or 48V.

  • Plastic impeller (no electrophoresis coating at this size and above).
  • Bridges the smaller compact frames and the higher-airflow 350mm+ tier.
Ask About This Series
Proventofan 350mm 48V DC axial fan F3D350PN, BLDC92/BLDC102
350mm

350mm 48V DC Axial Fan

Two motor variants at this size: F3D350PN48-90 (BLDC92 motor) and F3D350PN48-20 (BLDC102 motor).

  • 48V is the standard voltage at this frame size. Other voltages can be built as a custom order; lead time and pricing are confirmed directly with our engineering team, not quoted from the standard price list.
  • The two motor variants have different depths; exact depth by variant is shown on the dimensional drawing for each model, not summarized here. Request the drawing for the variant you need.
Ask About This Series
Proventofan 400mm DC axial fan F3D400PN, 48V/110VDC
400mm

400mm 48V / 110VDC Axial Fan

Two variants: F3D400PN48-20 (48V) and F3D400PN110-21 (110VDC), both on the BLDC102 motor.

  • First size in the range offering a 110VDC option alongside 48V.
  • Highest maximum static pressure (290 Pa) of any model in the current range.
  • Plastic impeller.
Ask About This Series
Proventofan 450mm DC axial fan F3D450PN, 48V/110VDC
450mm

450mm 48V / 110VDC Axial Fan

Two variants: F3D450PN48-20 (48V) and F3D450PN110-20 (110VDC), both on the BLDC102 motor.

  • Largest frame size and highest airflow in the current range.
  • Same 48V/110VDC choice as the 400mm size.
  • Plastic impeller.
Ask About This Series
03 / SPECIFICATIONS

Models and Specifications

ModelFrame / DepthRated VoltageOperating RangeRPMMax AirflowMax Static PressurePowerCurrentNoiseMotor
F3D200AN24-90φ200mm impeller (225×225×80mm outer frame)24V16–28V3,0001,205 m³/h250 Pa60W2.5A62 dB(A)BLDC92
F3D200AN48-90φ200mm impeller (225×225×80mm outer frame)48V36–57V3,0001,205 m³/h250 Pa60W1.25A62 dB(A)BLDC92
F3D250AN24-90φ250mm impeller (280×280×80mm outer frame)24V16–28V2,7801,920 m³/h225 Pa105W4.4A69 dB(A)BLDC92
F3D250AN48-90φ250mm impeller (280×280×80mm outer frame)48V36–57V2,7801,920 m³/h225 Pa105W2.2A69 dB(A)BLDC92
F3D254AR24-90φ254×89mm24V16–28V2,0001,200 m³/h180 Pa62W2.6A62 dB(A)BLDC92
F3D254AR48-90φ254×89mm48V36–57V2,0001,200 m³/h180 Pa62W1.3A62 dB(A)BLDC92
F3D300PN24-90φ300mm24V16–28V1,8002,300 m³/h170 Pa80W3.4A66 dB(A)BLDC92
F3D300PN48-90φ300mm48V36–57V1,8002,300 m³/h170 Pa80W1.7A66 dB(A)BLDC92
F3D350PN48-90φ350mm48V36–57V1,5803,500 m³/h135 Pa160W3.4A63 dB(A)BLDC92
F3D350PN48-20φ350mm48V36–57V1,8004,000 m³/h160 Pa384W8.0A65 dB(A)BLDC102
F3D400PN48-20φ400mm48V36–57V1,4004,730 m³/h225 Pa274W5.7A68 dB(A)BLDC102
F3D400PN110-21φ400mm110V77–138V1,6005,500 m³/h290 Pa400W3.6A73 dB(A)BLDC102
F3D450PN48-20φ450mm48V36–57V1,4505,450 m³/h185 Pa260W5.4A63 dB(A)BLDC102
F3D450PN110-20φ450mm110V77–138V1,6006,150 m³/h250 Pa420W3.9A68 dB(A)BLDC102

Rated voltage is the nominal supply; the operating range next to it is the actual voltage window each model runs in. Confirm your bus voltage falls inside that range before ordering. Max static pressure is the value at (or near) zero airflow, not a usable operating point: real system resistance drops airflow well before that number is reached, so size against your actual duty point, not this column alone. Noise figures are recorded per model but the exact test distance and standard are not shown here; if that detail matters for your specification, confirm it with us before quoting. Open any frame size below to see its curve and drawings.

Curves and drawings by frame size

225mmF3D200AN24-90 · F3D200AN48-90
225mm DC axial fan performance curve
Curve
225mm DC axial fan reference photo
Reference
225mm DC axial fan dimensional drawing 1
Drawing 1
225mm DC axial fan dimensional drawing 2
Drawing 2
225mm DC axial fan dimensional drawing 3
Drawing 3
250mmF3D250AN24-90 · F3D250AN48-90
250mm DC axial fan performance curve
Curve
250mm DC axial fan reference photo
Reference
250mm DC axial fan dimensional drawing 1
Drawing 1
250mm DC axial fan dimensional drawing 2
Drawing 2
250mm DC axial fan dimensional drawing 3
Drawing 3
254 × 89mmF3D254AR24-90 · F3D254AR48-90
254×89mm DC radiator fan performance curve
Curve
254×89mm DC radiator fan dimensional drawing
Drawing
300mmF3D300PN24-90 · F3D300PN48-90
300mm DC axial fan performance curve
Curve
300mm DC axial fan reference photo
Reference
300mm DC axial fan dimensional drawing 1
Drawing 1
300mm DC axial fan dimensional drawing 2
Drawing 2
350mmF3D350PN48-90 · F3D350PN48-20
350mm DC axial fan curve for F3D350PN48-90
Curve · F3D350PN48-90
350mm DC axial fan reference photo, F3D350PN48-90
Reference · F3D350PN48-90
350mm DC axial fan dimensional drawing for F3D350PN48-90
Drawing · F3D350PN48-90
350mm DC axial fan curve for F3D350PN48-20
Curve · F3D350PN48-20
350mm DC axial fan reference photo, F3D350PN48-20
Reference · F3D350PN48-20
350mm DC axial fan dimensional drawing for F3D350PN48-20
Drawing · F3D350PN48-20
400mmF3D400PN48-20 · F3D400PN110-21
400mm DC axial fan curve for F3D400PN48-20
Curve · F3D400PN48-20
400mm DC axial fan reference photo
Reference
400mm DC axial fan dimensional drawing, shared across both voltages
Drawing (shared)
400mm DC axial fan curve for F3D400PN110-21
Curve · F3D400PN110-21
450mmF3D450PN48-20 · F3D450PN110-20
450mm DC axial fan curve for F3D450PN48-20
Curve · F3D450PN48-20
450mm DC axial fan reference photo
Reference
450mm DC axial fan dimensional drawing, shared across both voltages
Drawing (shared)
450mm DC axial fan curve for F3D450PN110-20
Curve · F3D450PN110-20
Request Curve & Drawing
04 / VOLTAGE & CONTROL

Match Voltage and Control Before You Order

24V, 48V or 110VDC

VoltageOperating RangeAvailable From
24V16–28V225mm, 250mm, 254×89mm, 300mm
48V36–57VAll seven frame sizes
110VDC77–138V400mm and 450mm

48V is the standard voltage across the full size range. 24V is standard on 225–300mm; 110VDC is standard from 400mm up.

12V, 85V and 310VDC are available as a custom order on request. These are not standard configurations, and lead time and pricing for a custom voltage are confirmed directly with our engineering team, not quoted from a standard price list.

0–10V, PWM or RS-485

Every BLDC axial fan in this 14-model range supports 0–10V DC, PWM and RS-485 control. This is a common specification across the full line and does not vary model to model.

Before finalizing your RFQ, confirm the following with our team rather than assuming a standard pinout:

  • PWM frequency
  • Logic voltage
  • Pull-up configuration
  • Minimum duty cycle
  • Startup behavior
  • 0% duty-cycle behavior
  • Exact pin definitions for any tach/FG or lock-rotor alarm line you need

Three-wire and four-wire fans do not necessarily follow the same wiring convention across models. Confirm against the datasheet for your specific model before designing it in.

Motor Wiring Reference

Two motor platforms cover this range: BLDC92, used on the 24V and 48V models, and BLDC102, used on the 48V and 110VDC models. Reference wiring diagrams for each are below — confirm pin-by-pin against your specific model's datasheet before finalizing your design.

DC axial fan BLDC92 motor wiring diagram, 24V 48V control
BLDC92 — 24V / 48V
DC axial fan BLDC102 motor wiring diagram, 48V 110V control
BLDC102 — 48V / 110VDC
Confirm Electrical Spec
05 / MODEL FINDER

Find Your DC Axial Fan by Requirements

Filter all 14 models by your exact requirement

Enter your frame size, voltage, required airflow, required static pressure and control interface, and our model finder will filter the 14 models above to the ones that match, grouped by frame size.

Find Your Model
DC axial fan selector form with frame size, operating voltage, airflow, static pressure and control interface inputs
06 / DEFINITION

What Is a DC Axial Fan?

How Axial Airflow and the BLDC Motor Work

A DC axial fan moves air in a straight line, parallel to the motor shaft: air enters one face of the housing and exits the opposite face along the same axis. A brushless DC motor uses electronic commutation and is designed to operate from a compatible DC supply.

Front view Side view — airflow parallel to motor shaft Air in Air out Axial Fan Airflow: Straight-Through, Parallel to the Motor Shaft

DC Axial Fan vs Compact DC Brushless Fan

The 225–450mm sizes on this page are industrial-frame fans built for equipment-level and enclosure cooling. If you're looking for a smaller, 20–200mm DC fan for electronics or compact equipment cooling, see our DC Brushless Fan range instead; it's a different frame class with its own specification set.

When to Compare AC, EC or Centrifugal Fans

Axial fans generally suit straight-through airflow with an unobstructed inlet, in a compact square or round frame. They also work well where PWM or tach integration is needed. If your application instead needs a 90° turn in airflow direction, works against a narrow duct, or needs concentrated airflow from a side outlet, a centrifugal blower is usually the better fit. Static pressure alone isn't a reliable way to choose between the two types: modern high-speed axial fans can reach high static pressure as well, so don't rule out an axial fan on pressure figures alone.

07 / APPLICATION FIT

Where These Fans Fit

DC axial fan cooling an outdoor power and telecom enclosure

Outdoor Power and Telecom Enclosures

Outdoor enclosures for power electronics and telecom equipment need a fan that can move air against real internal resistance, not just a high free-air rating. Across this range, 225–450mm models cover 1,200 to 6,150 m³/h depending on frame size and voltage, but the number that matters is airflow at your actual enclosure resistance, not the datasheet maximum. Before specifying, confirm your target airflow and static pressure at the enclosure's real operating condition, and check that the enclosure's supply falls within one of this range's voltage options: 24V, 48V or 110VDC.

DC axial fan cooling energy storage and charging equipment

Energy Storage and Charging Equipment

For battery cabinets and charging equipment on a DC bus, these DC axial fans can be supplied from a compatible DC bus without an added AC-to-DC conversion stage. Standard models use 24V, 48V or 110VDC depending on frame size (see Voltage and Control above). Confirm your enclosure's thermal load, required airflow at your actual internal resistance, and control interface (0–10V, PWM or RS-485) before specifying a model.

DC axial fan mounted on an industrial condenser and heat exchanger

Industrial Condensers and Heat Exchangers

The 254×89mm frame is built for radiator and condenser coil mounting. This is an industrial application, not an automotive radiator fan. Other frame sizes in the range can also be considered for heat-exchanger cooling where a standard-depth housing suits the mounting. Confirm coil face dimensions, required airflow at your coil's actual resistance, and mounting depth before specifying.

DC axial fan ventilating DC-powered equipment and a control panel

DC-Powered Equipment and Panel Ventilation

For general ventilation inside DC-powered equipment and control panels, where the fan cools the electronics inside a cabinet rather than a room, the 225–450mm range gives a wide airflow and static pressure spread to match panel size and internal component density. Confirm your panel's internal airflow path, required static pressure at your actual resistance, and available mounting depth before specifying a model.

08 / BEFORE YOU ORDER

Lock the RFQ Specification Before Sampling

01

Free-Air Rating vs System Resistance

The free-air CFM/m³/h figure on a datasheet is not what you'll get once the fan is installed against real system resistance: heatsinks, filters, perforated panels and dense wiring all add resistance that airflow has to work against. The actual operating point is where the fan's pressure-flow curve crosses your system's resistance curve, not the free-air number alone. Max static pressure, similarly, is measured near zero airflow and isn't a usable operating condition on its own.

Common mistakes include:

  • Sizing on frame diameter alone
  • Comparing only free-air CFM figures across models
  • Assuming two models at the same voltage are interchangeable

Others include:

  • Ignoring PWM/tach electrical logic
  • Treating max static pressure as an operating point
  • Adding a filter without re-checking resistance
  • Overlooking required inlet clearance

Before sampling, confirm your actual system resistance and request the fan curve for your candidate model. Free-air specs alone aren't enough to lock a spec.

02

Sample-to-Production Specification Control

One automation-equipment customer opened with two samples of a 225×225×80mm, 24V metal-impeller fan, with their production volume undecided: anywhere from 5 to 1,000 units depending on which of their own product lines adopted it. The specification stayed unchanged for eight months while their internal volume decision was pending; we didn't chase a PO before it was ready.

Case Reference

Two-sample project with potential volume up to 1,000 units; the specification remained unchanged through an eight-month internal decision cycle.

If production volume is still undecided, tell us at the sample stage. We can keep the approved sample specification on record and use it once the project moves to production quantities.

03

Drawing, Connector and Mounting Approval

Case Reference

We previously had an AC axial fan order (not this DC line) where two similar variants — different blade count, different rotation direction, or a different mounting suffix — were confused under close part numbers, because an outdated drawing version had never been formally retired.

Specify the exact drawing revision, model suffix and blade rotation direction on your RFQ and purchase order, not just the base model number, especially if your application could accept more than one configuration.

04

Compliance Documents for the Destination Market

Case Reference

On a past urgent 24V DC axial fan order, packing weight and volumetric-weight estimates were provided ahead of production completion, and the commercial invoice and packing list were drafted in parallel with sample testing instead of waiting until the run was finished, which kept an air-freight shipment on schedule.

If your shipment has a hard delivery date, tell us at RFQ stage so documentation can be prepared alongside production rather than after it, and confirm any carrier-specific compliance requirements (such as for magnetic cargo) before booking freight.

09 / OEM SUPPORT

DC Axial Fan Manufacturer Support for OEM Orders

What to Include in the RFQ

To get an accurate quote on the first pass, include: frame size and cutout, rated DC bus voltage, operating voltage, required airflow, required static pressure, ambient temperature, control interface, mounting configuration, cable/connector requirements, quantity, destination market, and any documents you'll need with the order.

Datasheets, Drawings and Performance Curves

Dimensional drawings and performance curves are available on request for every model in the range. See the size sections and model table above for model-specific detail, or request the full set directly through the RFQ form.

Verified Product and Quality Documents

Product Compliance

All models in this range carry CE marking.

Quality Management System

Our quality management system is certified to ISO 9001 at the company level, not as a per-model product certification. Certificate numbers and the certified entity are available on request rather than published here.

Construction and Ratings

Die-cast aluminum housing, maintenance-free ball bearings, Insulation Class B, -25°C to +60°C operating range, continuous duty (S1), any-angle mounting orientation. Standard protection rating is IP44 across the range. This describes the fan itself, not the enclosure it's installed in. IP54, IP55 and IP65 are available as a custom option on request; this is not the standard configuration. On the smaller frames, a metal impeller (electrophoresis-coated die-cast aluminum) is available for 225mm, 250mm and 254mm models; 300mm and larger use a plastic impeller as standard, with no electrophoresis coating.

Cable, Connector and Mounting Customization

Available, subject to customer-supplied drawings. Lead time and any additional cost are quoted case by case rather than as a fixed figure.

Commercial Terms

  • Standard warranty is 12 months from shipment.
  • Payment terms are confirmed per order based on volume and history, not a fixed template.
  • Response time is within 1 business day.
  • Standard catalog orders have a MOQ of 10 units.
  • OEM custom-specification orders have a MOQ of 50 units.
  • Private-label / custom-branding orders have a MOQ of 50 units.
  • No tooling fee on standard frame modifications.
  • No minimum order quantity applies to samples.
  • Sample lead time is typically 3–7 days standard or 5–10 days for a custom specification, and production lead time is typically 15–20 days standard or 18–25 days for a custom specification.
Fan assemblies with extended lead wires laid out in production at Proventofan

Facility and Quality Process

Process documentation and production images are available for key stages including motor winding, dynamic balancing, temperature rise test, aging test, performance testing and outgoing inspection, as part of your OEM qualification.

Motor winding station for DC axial fan production
Motor Winding
Impeller dynamic balancing test station
Dynamic Balancing Test
Temperature rise test for DC axial fan
Temperature Rise Test
Aging test for DC axial fan
Aging Test
Fan performance test bench measuring airflow and static pressure
Performance Test Bench
Outgoing inspection and packing line
Outgoing Inspection & Packing
Send RFQ
11 / Request a Quote

Send Your Operating Point

Send us your frame size or cutout, voltage, required airflow, required static pressure, control interface, quantity and destination market, and we'll come back with a quote. We respond within 1 business day.

WhatsApp Us
Proventofan fan performance test bench measuring airflow and static pressure for custom OEM fans
12 / FAQ

DC Axial Fan FAQs

What is a DC axial fan?

A DC axial fan moves air parallel to the motor shaft and uses a brushless DC motor designed for a compatible DC supply. Standard models on this page use 24V, 48V or 110VDC nominal supplies, depending on model. See What Is a DC Axial Fan? above for the full explanation.

Which sizes are available?

Seven frame sizes: 225mm, 250mm, 254×89mm, 300mm, 350mm, 400mm and 450mm, across 14 total models. See Choose the Frame Size above for specifications on each.

Should I choose 24V, 48V or 110VDC?

Match your system's DC bus voltage: 24V is available on 225–300mm sizes, 48V across the full range, and 110VDC only on 400mm and 450mm. 12V, 85V and 310VDC are available as a custom order, not standard configurations.

Which model fits a radiator or condenser?

The 254×89mm series (F3D254AR24-90 and F3D254AR48-90), with its 89mm-deep configuration, is built for industrial radiator and condenser mounting. This is an industrial application, not an automotive radiator fan.

Do the fans support PWM, 0–10V or RS-485?

Yes. All 14 models in the current range support 0–10V DC, PWM and RS-485 control as a common specification across the line.

What airflow and static-pressure data are available?

The model table above lists maximum airflow and maximum static pressure for every model. Full performance curves are available on request for any model. Max static pressure is a near-zero-airflow figure, not a usable operating point, so request the curve for your actual duty point.

Can I request dimensional drawings?

Yes, dimensional drawings are available on request for every model in the range. See the model table or contact us directly.

Can cable, connector or mounting be customized?

Yes. Customization is available for cable, connector and mounting, subject to customer-supplied drawings. Lead time and any additional cost are quoted case by case.

What is the standard protection rating?

IP44 is standard across the range. IP54, IP55 and IP65 are available as a custom option on request. This is not the standard configuration.

What documents can be supplied with an order?

CE marking applies across the range, and our facility holds ISO 9001 certification at the company level. Specific certificate numbers and the certified entity are available on request.

What are the MOQ, sample and production lead times?

Standard catalog orders have a MOQ of 10 units; OEM custom-specification and private-label orders have a MOQ of 50 units. There is no minimum for samples. Samples ship in 3–7 days standard or 5–10 days for a custom specification; production takes 15–20 days standard or 18–25 days for a custom specification.

How do I select by airflow and static pressure?

Use the DC Axial Fan Selector. Enter your frame size, voltage, required airflow, required static pressure and control interface to filter the full model list.

Request a Quote

Tell us your fan requirements and we’ll get back to you with a suitable solution.