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Nicotra Gebhardt DDP 9/9 EC Alternative — LONGWELL LWDD9-9-EC

Looking for an alternative for Nicotra Gebhardt DDP 9/9 EC? The LONGWELL LWDD9-9-EC is the same-size 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 10–14 weeks ex-works Nicotra Gebhardt. Widely deployed across AHU OEM, cleanroom FFU, US Buy American.

Replaces: Nicotra Gebhardt DDP 9/9 EC Diameter: Ø250 mm Family: DDP series → LONGWELL LWBE3G / LWAE3G / LWHV / LWFC Sample: 1–3 days
Replacing
Nicotra Gebhardt
DDP 9/9 EC
DDP series · EC plug fan · Ø250 mm
→
With
LONGWELL
LWDD9-9-EC
Same size class (Ø229 mm) — mounting per drawing · Same control · 15–30 day delivery

Specification Comparison

Specification Nicotra Gebhardt DDP 9/9 EC LONGWELL LWDD9-9-EC
Fan type EC plug fan EC direct-drive double-inlet forward-curved blower (scroll housing)
Impeller diameter Ø250 mm Ø229 mm · frame 9/9 (LWDD9-9-EC) Same frame size
Airflow range 500–2,200 m³/h per model curve — LWDD line up to 4,362 m³/h (12/12 frame)
Static pressure (max) 720 Pa up to 587 Pa (nameplate)
Motor power (max) 340 W rated per model (EC external-rotor)
Noise floor (Lw) 60 dB(A) per model (nameplate)
Voltage 200–240 V 1Φ 220–230 V 1Φ
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) 10–14 weeks 15–30 days
Landed cost index (LONGWELL = 100) 175–200 100 (baseline)
Verify it on the LONGWELL selector: LWDD9-9-EC — 9/9 frame, data and drawing · all LWDD / LWFA-E Ø178–254 mm models (12) · all 26 commercial blowers · check your own duty point · samples, MOQ and lead time

Why Engineers Switch from DDP 9/9 EC to LWDD9-9-EC

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 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

Ø229 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 LWDD9-9-EC matches the Nicotra Gebhardt DDP 9/9 EC 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 LWDD9-9-EC accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control signals as Nicotra Gebhardt DDP 9/9 EC. 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 Nicotra Gebhardt 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 LWDD9-9-EC is widely deployed across AHU OEM, cleanroom FFU, US Buy American. Common application categories include:

  • AHU OEM
  • FFU
  • Cleanroom

Particularly suited for US AHU OEM specifications and IRA Buy American compliance.

FAQ

Is LONGWELL LWDD9-9-EC a true drop-in replacement for Nicotra Gebhardt DDP 9/9 EC?
Same size class and control interface. Confirm the mounting hole pattern, inlet ring diameter and shaft height against the dimensioned drawing on the LONGWELL LWDD9-9-EC 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 LWDD9-9-EC compare on efficiency to DDP 9/9 EC?
LONGWELL does not publish a single peak-efficiency figure for the LWDD9-9-EC. 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: Nicotra Gebhardt DDP 9/9 EC requires 10–14 weeks ex-works due to ongoing allocation. LONGWELL LWDD9-9-EC 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 Ø250 mm inventory.
What's the cost delta?
At equivalent specification (same Ø, same airflow/Pa, same IP, same control), LONGWELL LWDD9-9-EC typically lands at 40–55% below Nicotra Gebhardt DDP 9/9 EC ex-works pricing. Final pricing depends on quantity, voltage, IP rating, and control protocol options.
What applications is LWDD9-9-EC typically used for?
LWDD blowers are used in compact AHU, fan-coil and rooftop units where a direct-drive double-inlet blower with EC speed control is specified.

Replace your DDP 9/9 EC — 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 LWDD9-9-EC directly.
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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.