Replacing
ebm-papst
K3G710
RadiCal / K3G-series · EC backward-curved centrifugal
plug fan · Ø710 mm
→
With
Nearest listed size (not a drop-in) · Same control · 15–30 day delivery
Specification Comparison
| Specification |
ebm-papst K3G710 |
LONGWELL LWBE3G630 |
| Fan type |
EC backward-curved centrifugal plug fan |
EC backward-curved centrifugal plug fan |
| Impeller diameter |
Ø710 mm |
No listed Ø710 mm model — nearest listed size Ø630 mm (LWBE3G630, 7 models) |
| Airflow range |
2,200–16,500 m³/h |
up to 21,742 m³/h per Ø630 unit — larger duties as FanGrid arrays |
| Static pressure (max) |
1700 Pa |
up to 1,677 Pa (Ø630 unit) |
| Motor power (max) |
7,500 W |
up to 5,600 W per unit |
| Noise floor (Lw) |
43 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) |
| IP rating |
IP54 / IP55 |
IP54 std · IP55 / IP67 option |
| Certifications |
CE · UL · VDE · EAC |
CE · RoHS · REACH · ETL on request |
| Sample lead time |
4–10 weeks |
1–3 days |
| Series lead time (≤500 units) |
16–22 weeks |
15–30 days |
| Landed cost index (LONGWELL = 100) |
175–200 |
100 (baseline) |
Why Engineers Switch from K3G710 to LWBE3G630
4–8× Faster Delivery
15–30 days
vs 16–22 weeks ex-works for ebm-papst in 2026. Sample units 1–3 days from stock vs 4–10 weeks.
40–55% Lower Landed Cost
−€600 to −€2,400
per unit at equivalent spec, depending on size and quantity. On a 50-unit FanGrid retrofit, typical CapEx delta is €30k–€120k.
Nearest size + FanGrid option
Ø630 mm
nearest listed size with the same 0–10 V / PWM / Modbus RTU control; mounting per the LONGWELL drawing (not a drop-in for Ø710 mm).
Drop-in compatibility: what matches and what to confirm
Mechanical match
LONGWELL does not currently list a Ø710 mm unit in this family. The nearest listed size is Ø630 mm (LWBE3G630); for the airflow of a single Ø710 mm fan, engineering proposes 2–4 smaller EC units in a FanGrid array or a custom development — mounting is not a drop-in.
Electrical & control match
The LWBE3G630 accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control signals as ebm-papst K3G710. LONGWELL provides the Modbus register map and a cross-reference to the ebm-papst map for BMS integration. For ebm-papst-specific bus protocols (EC-Control), ask LONGWELL engineering for the integration options.
Performance match
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 LWBE3G630 is widely deployed across Very large CRAH, industrial process exhaust, stadium/atrium HVAC. Common application categories include:
- Large CRAH
- Process exhaust
- Large RTU
Particularly suited for very large CRAH and industrial process exhaust applications.
FAQ
Is LONGWELL LWBE3G630 a true drop-in replacement for ebm-papst K3G710?
Not as a drop-in: LONGWELL does not list a Ø710 mm model in this family. The nearest listed size is Ø630 mm (LWBE3G630); for equal airflow we propose a FanGrid array of smaller EC units or a custom development. Ask engineering with your duty point.
How does LWBE3G630 compare on efficiency to K3G710?
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's the 2026 lead time difference?
As of May 2026: ebm-papst K3G710 requires 16–22 weeks ex-works due to ongoing allocation. LONGWELL LWBE3G630 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 Ø710 mm inventory.
What's the cost delta?
At equivalent specification (same Ø, same airflow/Pa, same IP, same control), LONGWELL LWBE3G630 typically lands at 40–55% below ebm-papst K3G710 ex-works pricing. Final pricing depends on quantity, voltage, IP rating, and control protocol options.
What applications is LWBE3G630 typically used for?
LWBE3G630 is widely deployed across Very large CRAH, industrial process exhaust, stadium/atrium HVAC. Particularly suited for very large CRAH and industrial process exhaust applications.
Replace your K3G710 — 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.
Request Sample View Full Cross-Reference Table
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.