Nicotra Gebhardt RDH 560 Alternative — LONGWELL LWBE3G560 EC plug fans
Looking for an alternative to Nicotra Gebhardt RDH 560? LONGWELL does not build belt-driven scroll fans, so there is no frame-for-frame RDH mirror. What LONGWELL offers for RDH 560 and RDH 450 duties is the LWBE3G EC backward-curved plug fan — Ø450–560 mm, up to 23,896 m³/h and 1,545 Pa per Ø560 unit (2,342 Pa per Ø450 unit), 380–400 V 3Φ, integrated EC controller — installed singly or as a two- to four-fan FanGrid for the full RDH 560 duty. Selection is by duty point; delivery 15–30 days.
RDH 560
LWBE3G560 EC plug fans
Specification Comparison
| Specification | Nicotra Gebhardt RDH 560 | LONGWELL LWBE3G560 EC plug fans |
|---|---|---|
| Fan type | Backward-inclined belt-drive centrifugal | EC backward-curved plug fan (free outlet, no scroll) — single or FanGrid |
| Impeller / frame | Ø560 mm · backward-inclined | Ø560 mm per unit (LWBE3G560, 10 models); full RDH 560 duty as a 2-fan FanGrid Per manufacturer quotation |
| Airflow range | up to 30,000 m³/h | up to 23,896 m³/h per unit (LWBE3G560-218NT-13); 30,000 m³/h class as a 2-fan FanGrid |
| Static pressure (max) | up to 2,200 Pa | up to 1,545 Pa (Ø560) · 2,342 Pa (Ø450 units for high-static duties) |
| Power class | motor-selectable (IE3/IE4) | up to 5,600 W per unit |
| Noise floor (Lw) | 83 dB(A) | from 63 dB(A) (nameplate, per model) |
| Voltage | 230 / 400 V · 380–480 V 3Φ | 380–400 V 3Φ |
| Drive / motor | Belt-drive, IE3/IE4 motor (EC retrofit) | Direct-drive EC external-rotor with integrated controller, no belt EC standard |
| Certifications | CE · UL · EAC · AMCA | 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 |
Selection is by duty point, not by frame number. Send the RDH size, the operating point (m³/h at Pa) and the supply voltage; LONGWELL returns the plug-fan size and FanGrid layout with curves and dimensioned drawings.
LWBE3G560 EC plug fans at a glance
Production Lead Time
Pricing
No Belt to Maintain
Installation and control vs the RDH 560: what to check
Frame & dimensions
A plug fan has no scroll: the impeller blows freely into the AHU section from a wall plate with an inlet nozzle, so the belt-driven RDH 560, its motor, slide rails and outlet transition are all removed. The wall plate and nozzle cut-outs are made to the LONGWELL drawings on the model pages. Where a ducted scroll outlet must be kept, a plug fan is not the right replacement — ask engineering.
Drive & motor options
LONGWELL builds direct-drive fans only: external-rotor AC motors as standard on the LWFA-E blowers (220–230 V 1Φ), EC motors on the LWDD blowers and on the LWBE3G plug fans (230 V 1Φ or 380–400 V 3Φ, 0–10 V / PWM / Modbus RTU). There is no belt-drive variant and no "-K" designation.
Performance
RDH 560 duties up to about 1,500 Pa are covered by two LWBE3G560 units in a FanGrid (23,896 m³/h and 1,545 Pa per unit at full speed); high-static points up to 2,200 Pa use three or four LWBE3G450 units (2,342 Pa per unit). RDH 450 duties (18,000 m³/h class) are covered by two LWBE3G450 or one LWBE3G560. Enter the duty point on the selector to see every model whose curve covers it.
Typical Applications
LWBE3G plug fans and FanGrid arrays are used across high-pressure industrial AHU and process ventilation. Common application categories include:
- High-pressure industrial AHU
- Process & dust extraction
- Library / archive HVAC
RDH is chosen for high static pressure; on the LONGWELL side the same duty is reached with smaller EC plug fans in parallel, each running near its best-efficiency point, with N+1 redundancy included.
FAQ
Is there a size-for-size LONGWELL equivalent of the Nicotra RDH 560?
Does LONGWELL offer an EC version?
What are LONGWELL's lead times and pricing?
What should I send to get a verified proposal?
Can I get the full Nicotra-to-LONGWELL cross-reference?
Evaluate a LONGWELL alternative to RDH 560 — 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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