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ebm-papst D3G250 Alternative — LONGWELL LWFE3G250

Looking for an alternative for ebm-papst D3G250-FR07-23? The LONGWELL LWFE3G250 has the same impeller diameter. Catalogue ratings, measured curves and dimensioned drawings for every model are on the LONGWELL Fan Selector; final selection is made at your duty point. Typical applications: Small AHU, commercial dryer, compact ERV / smart home ventilation.

Reference model: ebm-papst D3G250-FR07-23 Diameter: Ø250 mm Family: D-series double-inlet → LONGWELL LWBE3G / LWAE3G / LWFC Sample: 1–3 days
Reference model
ebm-papst
D3G250
D-series double-inlet · EC double-inlet forward-curved blower · Ø250 mm
→
LONGWELL series
LONGWELL
LWFE3G250
Same impeller diameter (Ø250 mm) · dimensions per LONGWELL drawing · 15–30 day production lead time

Specification Comparison

Specification ebm-papst D3G250 LONGWELL LWFE3G250
Fan type EC double-inlet forward-curved blower EC double-inlet forward-curved blower
Impeller diameter Ø250 mm Ø250 mm 2 models
Airflow range 400–2,400 m³/h up to 4,058 m³/h
Static pressure (max) 600 Pa up to 742 Pa
Motor power (max) 420 W up to 750 W
Noise floor (Lw) 62 dB(A) from 74 dB(A) (nameplate, per model)
Voltage 200–240 V 1Φ 220–230 V 1Φ · 380–400 V 3Φ
Control input 0–10 V / PWM / Modbus / EC-Control 0–10 V / PWM / Modbus RTU (RS485)
IP rating IP54 / IP55 IP54 / IP55 (per model)
Certifications CE · UL · VDE · EAC CE · RoHS · ETL (UL 507 / CSA C22.2 No.113)
Sample lead time Per manufacturer quotation 1–3 days
Series lead time (≤500 units) Per manufacturer quotation 15–30 days
Pricing Per manufacturer quotation Quoted per project
Verify it on the LONGWELL selector: all 2 LWFE3G250 models — data, measured curves, drawings · LWFE3G250-138DS-02 (largest airflow in the series) · check your own duty point · samples, MOQ and lead time

LWFE3G250 at a glance

Production Lead Time

15–30 days
Ex works for production batches. Stock standard models ship as samples in 1–3 days.

Pricing

Quoted per project
Price depends on model, voltage, control option and quantity. Sample fees are credited in full against the first production order.

Same Impeller Diameter

Ø250 mm
Same impeller diameter; confirm the mounting hole pattern and inlet ring against the LONGWELL drawing before ordering.

Installation and control: what to check

Mechanical

Mounting dimensions, inlet ring diameter, motor shaft height and terminal-box position of the LONGWELL LWFE3G250 are given on its dimensioned drawing. Compare them with the installed fan before ordering.

Electrical & control

The LONGWELL LWFE3G250 accepts a 0–10 V analog speed reference, PWM and Modbus RTU (RS485) control signals (per model; see the model datasheet). LONGWELL supplies its Modbus register map for BMS integration.For other bus protocols, ask LONGWELL engineering for the integration options.

Performance

The measured P-Q curve of every LONGWELL model is on its model page; we check your duty point against it before quoting.

Typical Applications

The LWFE3G250 is typically specified for Small AHU, commercial dryer, compact ERV / smart home ventilation. Common application categories include:

  • Small AHU
  • Commercial dryer
  • Compact ERV

Particularly suited for commercial dryer OEM and smart-home ERV at scale.

FAQ

What should I check before using LONGWELL LWFE3G250 in place of ebm-papst D3G250?
The impeller diameter is the same. Confirm the mounting hole pattern, inlet ring diameter and shaft height against the dimensioned drawing on the LONGWELL LWFE3G250 model page before ordering; the available control inputs (0–10 V / PWM / Modbus RTU) and voltages are listed in the table above.
Where can I find efficiency data for LWFE3G250?
LONGWELL does not publish a single peak-efficiency figure for the LWFE3G250. The model page on the selection site gives airflow, static pressure and input power along the curve (measured where marked, nameplate-estimated otherwise), so the efficiency at your duty point follows directly; a test report for a specific model is available from engineering on request.
What is the LONGWELL lead time?
LONGWELL LWFE3G250 ships in 15–30 days for orders up to 500 units and 6–10 weeks for 1,000+ unit OEM programs. Sample units ship in 1–3 days from stocked Ø250 mm inventory.
How is LONGWELL pricing determined?
LONGWELL quotes per project. Pricing depends on quantity, voltage, IP rating, and control protocol options.
What applications is LWFE3G250 typically used for?
LWFE3G250 is typically specified for Small AHU, commercial dryer, compact ERV / smart home ventilation. Particularly suited for commercial dryer OEM and smart-home ERV at scale.

Evaluate a LONGWELL alternative to D3G250 — samples in 1–3 days

Send a quick request — model + quantity + delivery address. Sample unit ships in 1–3 days for field validation. Series production at 15–30 day lead time after PO.

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Official Product Page
Browse the full Forward-Curved Centrifugal EC Fans range on longwellfans.com — request a quote on LWFE3G250 directly.
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ebm-papst® is a registered trademark of ebm-papst Group. LONGWELL is an independent manufacturer and is not affiliated with, endorsed by, or sponsored by ebm-papst. Any references to third-party trademarks are used solely for identification and comparison purposes. All performance figures reflect specific test conditions; final selection should be confirmed by duty point, voltage/control, mounting and project validation.