ebm-papst R3G630 Alternative — LONGWELL LWBE3G-630-EC
Looking for an alternative for ebm-papst R3G630-AB06-03? The LONGWELL LWBE3G-630-EC is the dimensionally interchangeable backward-curved EC equivalent — same mounting, same control protocol, AMCA 210/211 third-party-tested performance — at 40–55% lower landed cost with 15-day delivery vs 14–22 weeks ex-works ebm-papst. R3G is ebm-papst's primary backward-curved centrifugal line; LONGWELL matches or exceeds it across the full size range.
R3G630
LWBE3G-630-EC
Specification Comparison
| Specification | ebm-papst R3G630 | LONGWELL LWBE3G-630-EC |
|---|---|---|
| Fan type | EC backward-curved centrifugal | EC backward-curved centrifugal |
| Impeller / frame | Ø630 mm | Ø630 mm Drop-in |
| Airflow range | up to 21,000 m³/h | up to 21,000 m³/h |
| Static pressure (max) | up to 1,600 Pa | up to 1,600 Pa |
| Power class | ≈2,900–5,600 W class | ≈2,900–5,600 W class |
| Wire-to-air η peak (AMCA 210) | 91% | 91% |
| Noise floor (Lw) | 80 dB(A) | 80 dB(A) |
| Voltage | 380–480 V 3Φ | 380–480 V 3Φ |
| Control input | 0–10 V / PWM / Modbus / EC-Control | 0–10 V / PWM / Modbus RTU / Modbus TCP Compatible |
| Certifications | CE · UL · VDE · EAC | CE · UL · cUL · TÜV · EAC · RoHS · REACH |
| Sample lead time | 4–10 weeks | 1–3 days |
| Series lead time (≤500 units) | 14–22 weeks | 15–30 days |
| Landed cost index (LONGWELL = 100) | 175–200 | 100 (baseline) |
Engineered match verified against ebm-papst R3G630-AB06-03 in LONGWELL's cross-brand model library (record: LWBE3G630-188PT-04). The LWBE3G630-188PT-04 match carries higher static than the original (up to ~1,600 Pa) for the largest fan-grid AHU.
Why Engineers Switch from R3G630 to LWBE3G-630-EC
4–8× Faster Delivery
40–55% Lower Landed Cost
True Drop-In Compatibility
Drop-In Compatibility Details
Mechanical match
The LONGWELL LWBE3G-630-EC matches the ebm-papst R3G630 mounting pattern (plenum-fan footprint, inlet ring diameter, motor shaft height, terminal-box position) within ±0.5 mm tolerance. Drop-in retrofit requires no AHU rework, no plate modification, and no plenum hole resizing.
Electrical & control match
The LWBE3G-630-EC accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control as the ebm-papst R3G630. LONGWELL provides a free Modbus register-map cross-reference for BMS integration; ebm-papst EC-Control / GeneSys bus is bridged with a free MODBUS gateway — no BMS reprogramming required.
Performance match
The PQ curve of the LONGWELL LWBE3G-630-EC sits within 2–3% of the ebm-papst R3G630 across the operating envelope (third-party AMCA 210/211 testing at TÜV / Intertek). Wire-to-air efficiency at BEP is 91% vs 91% — backward-curved EC parity. 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 LWBE3G-630-EC is widely deployed across 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
Is LONGWELL LWBE3G-630-EC a true drop-in replacement for ebm-papst R3G630?
How does LWBE3G-630-EC compare on efficiency to R3G630?
What's the 2026 lead-time difference?
What's the cost delta?
Is R3G the same as K3G?
Replace your R3G630 in 5 days
Send a quick request — model + quantity + delivery address. Sample unit ships in 1–3 days for field validation. Series production at 15-day lead time after PO.
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