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; aerodynamics are characterized using AMCA 210/211 test methods; delivery 15–30 days.

Replaces: Nicotra Gebhardt RDH 560 (also RDH 450) Frame / size: Ø560 mm · backward-inclined Family: Nicotra RDH 560 → LONGWELL LWBE3G560 EC plug fans (duty-point match, not a frame mirror) Sample: 1–3 days

Replacing

Nicotra Gebhardt
RDH 560

RDH 560 · Backward-inclined belt-drive centrifugal

→

With

LONGWELL
LWBE3G560 EC plug fans

EC plug fans, single or FanGrid · 15–30 day delivery

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 Not frame-interchangeable
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 · REACH · ETL on request
Sample lead time	4–10 weeks	1–3 days
Series lead time (≤500 units)	10–14 weeks	15–30 days
Landed cost index (LONGWELL = 100)	175–200	100 (baseline)

Verify it on the LONGWELL selector: LWBE3G560 — 10 models, data, curves, drawings · LWBE3G560-218NT-13 (23,896 m³/h per unit) · LWBE3G450 — high-static units up to 2,342 Pa · check your own duty point · samples, MOQ and lead time

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.

Why Engineers Switch from RDH 560 to LWBE3G560 EC plug fans

4–8× Faster Delivery

15–30 days

vs 10–14 weeks ex-works for Nicotra Gebhardt in 2026. Sample units 1–3 days from stock.

40–55% Lower Landed Cost

−40 to −55%

per unit at equivalent spec. On a multi-unit AHU / fan-grid program the CapEx delta scales fast.

No Belt to Maintain

0 belts

The external-rotor motor sits inside the impeller: no belt tensioning, pulley wear or bearing-block service. EC versions add 0–10 V / PWM / Modbus RTU speed control.

Drop-in compatibility vs the RDH 560: what matches and what changes

Frame & dimensional match

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 match

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?

No. LONGWELL does not make belt-driven fans and does not use Nicotra frame designations. RDH 560 and RDH 450 duties are covered by LWBE3G EC plug fans — singly or in a FanGrid. Selection is by duty point, and the wall-plate layout is confirmed against the LONGWELL drawings.

Does LONGWELL offer an EC version?

Yes. EC external-rotor motors with 0–10 V / PWM / Modbus RTU control are available across the direct-drive range, and the LWBE3G plug-fan line is EC as standard in 230 V 1Φ and 380–400 V 3Φ. There is no belt to remove — the motor sits inside the impeller hub.

What is the lead-time and cost difference?

LONGWELL LWBE3G560 EC plug fans ship in 15–30 days vs 10–14 weeks ex-works for Nicotra RDH 560 under allocation, and typically land 40–55% below Nicotra ex-works pricing at equivalent duty. Samples ship in 1–3 days.

What should I send to get a verified proposal?

The Nicotra model and size, the duty point (airflow at static pressure), supply voltage and frequency, the control signal you use, and a photo or drawing of the existing mounting. Engineering returns the LONGWELL model, its curve, a dimensioned drawing and the sample lead time — usually within one working day.

Can I get the full Nicotra-to-LONGWELL cross-reference?

This guide covers AT, DD/DDM, DDP, RDH, RZR and ADH. For any other Nicotra model send the nameplate to sales@longwellfans.com, or enter the duty point on the LONGWELL selection site to see every model whose curve covers it.

Replace your 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.

Request Sample View Full Cross-Reference Table

Official Product Page

Browse the full Commercial Centrifugal Fans & Blowers range on longwellfans.com — request a quote on LWBE3G560 EC plug fans directly.

View on longwellfans.com →

Nicotra Gebhardt® is a trademark of its owner. LONGWELL is an independent manufacturer and is not affiliated with, endorsed by, or sponsored by Nicotra Gebhardt. This page is published as engineering reference based on public datasheets. All performance figures reflect specific test conditions; final selection should be confirmed by duty point, voltage/control, mounting and project validation.