ebm-papst R3G630 Alternative — LONGWELL LWBE3G630
Looking for an alternative for ebm-papst R3G630-AB06-03? The LONGWELL LWBE3G630 is the same-size backward-curved EC alternative — same control protocol, mounting dimensions on the LONGWELL drawing, performance characterized using AMCA 210/211 test methods (test report on request) — at 40–55% lower landed cost with 15–30 day delivery vs 14–22 weeks ex-works ebm-papst. R3G is ebm-papst's primary backward-curved centrifugal line; LONGWELL covers this size in the LWBE3G630 series.
R3G630
LWBE3G630
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 · REACH · ETL on request |
| 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) |
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.
Why Engineers Switch from R3G630 to LWBE3G630
4–8× Faster Delivery
40–55% Lower Landed Cost
Drop-in Candidate · Same Size Class
Drop-in compatibility: what matches and what to confirm
Mechanical match
The LONGWELL LWBE3G630 matches the ebm-papst R3G630 mounting pattern (plenum-fan footprint, inlet ring diameter, motor shaft height, terminal-box position) per the mounting dimensions on the LONGWELL drawing. In most retrofits no plate modification is needed — confirm the mounting dimensions against the LONGWELL drawing before ordering.
Electrical & control match
The LWBE3G630 accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control as the ebm-papst R3G630.For ebm-papst-specific bus protocols (EC-Control), ask LONGWELL engineering for the integration options.
Performance match
The LONGWELL LWBE3G630 range covers the ebm-papst R3G630 operating envelope on nameplate data (characterized using AMCA 210/211 test methods; test report available on request). 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 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 LWBE3G630 a true drop-in replacement for ebm-papst R3G630?
How does LWBE3G630 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 — 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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