Replacing
Ziehl-Abegg
FN063
→
With
Same size class (Ø630 mm) — mounting per drawing · Same control · 15–30 day delivery
Specification Comparison
| Specification |
Ziehl-Abegg FN063 |
LONGWELL LWAE3G630 |
| Fan type |
EC axial fan |
EC axial fan |
| Impeller diameter |
Ø630 mm |
Ø630 mm 11 models |
| Airflow range |
5,500–17,500 m³/h |
up to 14,935 m³/h |
| Static pressure (max) |
420 Pa |
up to 258 Pa |
| Motor power (max) |
3,200 W |
up to 887 W |
| Noise floor (Lw) |
76 dB(A) |
from 69 dB(A) (nameplate, per model) |
| Voltage |
380–480 V 3Φ |
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 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) |
12–18 weeks |
15–30 days |
| Landed cost index (LONGWELL = 100) |
175–200 |
100 (baseline) |
Why Engineers Switch from FN063 to LWAE3G630
4–8× Faster Delivery
15–30 days
vs 12–18 weeks ex-works for Ziehl-Abegg 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.
Drop-in Candidate · Same Size Class
Ø630 mm
Same impeller size and control protocol; confirm the mounting hole pattern and inlet ring against the LONGWELL drawing before ordering.
Drop-in compatibility: what matches and what to confirm
Mechanical match
The LONGWELL LWAE3G630 matches the Ziehl-Abegg FN063 mounting pattern (M-mount, ISO 9001 plenum-fan footprint) per the mounting dimensions on the LONGWELL drawing. Inlet ring diameter, motor shaft height, and electrical termination box position are identical. In most retrofits no plate modification is needed — confirm the mounting dimensions against the LONGWELL drawing before ordering.
Electrical & control match
The LWAE3G630 accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control signals as Ziehl-Abegg FN063. LONGWELL supplies its Modbus RTU register map with the fan so the BMS points can be re-mapped; the register addresses are not identical to the Ziehl-Abegg map.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 LWAE3G630 is widely deployed across Premium heat pump, data center free cooling, dry cooler, large BESS. Common application categories include:
- Premium heat pump
- Data center free cooling
- Dry cooler
- Large BESS
Particularly suited for premium heat pump and data center free cooling.
FAQ
Is LONGWELL LWAE3G630 a true drop-in replacement for Ziehl-Abegg FN063?
Same size class and control interface. Confirm the mounting hole pattern, inlet ring diameter and shaft height against the dimensioned drawing on the LONGWELL LWAE3G630 model page before ordering; it accepts the same 0–10 V analog / PWM / Modbus RTU control signals and is offered in the voltages listed in the table above.
How does LWAE3G630 compare on efficiency to FN063?
LONGWELL does not publish a single peak-efficiency figure for the LWAE3G630. 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: Ziehl-Abegg FN063 requires 12–18 weeks ex-works due to ongoing allocation. LONGWELL LWAE3G630 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 Ø630 mm inventory.
What’s the cost delta?
At equivalent specification (same Ø, same airflow/Pa, same IP, same control), LONGWELL LWAE3G630 typically lands at 40–55% below Ziehl-Abegg FN063 ex-works pricing. Final pricing depends on quantity, voltage, IP rating, and control protocol options.
What applications is LWAE3G630 typically used for?
LWAE3G630 is widely deployed across Premium heat pump, data center free cooling, dry cooler, large BESS. Particularly suited for premium heat pump and data center free cooling.
Replace your FN063 — 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 EC Axial Fans range on longwellfans.com — request a quote on LWAE3G630 directly.
View on longwellfans.com →
Ziehl-Abegg® is a registered trademark of its owner. This page is published by LONGWELL, an independent manufacturer and is not affiliated with, endorsed by, or sponsored by Ziehl-Abegg. All performance data sourced from publicly available datasheets. All performance figures reflect specific test conditions; final selection should be confirmed by duty point, voltage/control, mounting and project validation.