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ebm-papst R3G630 Alternative — LONGWELL LWBE3G630

Looking for an alternative for ebm-papst R3G630-AB06-03? The LONGWELL LWBE3G630 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. R3G is ebm-papst's primary backward-curved centrifugal line; LONGWELL covers this size in the LWBE3G630 series.

Reference model: ebm-papst R3G630-AB06-03 Frame / size: Ø630 mm Family: R3G → LONGWELL LWBE3G (backward-curved EC) Sample: 1–3 days
Reference model
ebm-papst
R3G630
R3G · EC backward-curved centrifugal · Ø630 mm
→
LONGWELL series
LONGWELL
LWBE3G630
Same size class (Ø630 mm) — mounting per drawing · same control · 15–30 day delivery

Specification Comparison

Specification ebm-papst R3G630 LONGWELL LWBE3G630
Fan type EC backward-curved centrifugal EC backward-curved centrifugal
Impeller / frame Ø630 mm Ø630 mm Same size class
Airflow range up to 21,000 m³/h up to 21,742 m³/h
Static pressure (max) up to 1,600 Pa up to 1,677 Pa
Power class ≈2,900–5,600 W class up to 5,600 W (rated per model)
Noise floor (Lw) 80 dB(A) from 66 dB(A) (nameplate, per model)
Voltage 380–480 V 3Φ 380–400 V 3Φ
Control input 0–10 V / PWM / Modbus / EC-Control 0–10 V / PWM / Modbus RTU (RS485)
Certifications CE · UL · VDE · EAC CE · RoHS
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 7 LWBE3G630 models — data, measured curves, drawings · LWBE3G630-188NT-09 (largest airflow in the series) · check your own duty point · samples, MOQ and lead time

Matched to ebm-papst R3G630-AB06-03 by impeller size and fan type — LONGWELL model LWBE3G630-188PT-04. Confirm the mounting footprint against the dimensioned drawing on the model page.

LWBE3G630 at a glance

Production Lead Time

15–30 days
Ex works for production batches. Sample units 1–3 days from stock.

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

Ø630 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 of the LONGWELL LWBE3G630 are given on its dimensioned drawing. Confirm the mounting dimensions against the LONGWELL drawing before ordering.

Electrical & control

The LONGWELL LWBE3G630 accepts a 0–10 V analog speed reference, PWM and Modbus RTU (RS485) control (per model; see the model datasheet).For other bus protocols, ask LONGWELL engineering for the integration options.

Performance

The LONGWELL LWBE3G630 range is listed with nameplate data and measured curves on the LONGWELL Fan Selector. The LWBE3G630-188PT-04 match carries higher static than the original (up to ~1,600 Pa) for the largest fan-grid AHU.

Typical Applications

The LONGWELL LWBE3G630 is typically specified for the largest industrial AHU and fan-grid arrays. Common application categories include:

  • Largest industrial AHU
  • Fan-grid arrays
  • Tunnel / process ventilation

The 630 mm size is the top of the backward-curved EC range — fan-grid arrays for the largest industrial AHU and process ventilation.

FAQ

What should I check before using LONGWELL LWBE3G630 in place of ebm-papst R3G630?
The impeller diameter is the same — confirm the mounting hole pattern and inlet ring against the LONGWELL drawing on the model page. Available control inputs (0–10 V / PWM / Modbus RTU) and voltages are listed in the table above. Confirm the mounting hole pattern and inlet ring against the LONGWELL drawing on the model page. Matched model: LWBE3G630-188PT-04.
Where can I find efficiency data for LWBE3G630?
LONGWELL does not publish a single peak-efficiency figure for the LWBE3G630. 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 LWBE3G630 ships in 15–30 days for orders up to 500 units, 6–10 weeks for 1,000+ unit OEM programs, and samples in 1–3 days from stocked Ø630 mm inventory.
How is LONGWELL pricing determined?
LONGWELL quotes per project. Pricing depends on quantity, voltage, IP and control options.
Is R3G the same as K3G?
No. R3G is ebm-papst's standard backward-curved centrifugal line; K3G (RadiCal) is the aerodynamically-optimised variant. They share frame sizes but differ in wheel design and part number. This page maps the R3G630 specifically; for the RadiCal equivalent see the K3G630 page in the alternatives index.

Evaluate a LONGWELL alternative to R3G630 — 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 Backward-Curved Centrifugal EC Fans range on longwellfans.com — request a quote on LWBE3G630 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.