Nicotra Gebhardt DDP 9/9 EC Alternative — LONGWELL LWBE3G-250-EC
Looking for an alternative for Nicotra Gebhardt DDP 9/9 EC? The LONGWELL LWBE3G-250-EC is the dimensionally interchangeable equivalent — same mounting, same control protocol, AMCA 210/211 third-party-tested performance — at 40–55% lower landed cost with 15-day delivery vs 10–14 weeks ex-works Nicotra Gebhardt. Widely deployed across AHU OEM, cleanroom FFU, US Buy American.
DDP 9/9 EC
LWBE3G-250-EC
Specification Comparison
| Specification | Nicotra Gebhardt DDP 9/9 EC | LONGWELL LWBE3G-250-EC |
|---|---|---|
| Fan type | EC plug fan | EC plug fan |
| Impeller diameter | Ø250 mm | Ø250 mm Drop-in |
| Airflow range | 500–2,200 m³/h | 500–2,200 m³/h |
| Static pressure (max) | 720 Pa | 720 Pa |
| Motor power (max) | 340 W | 340 W |
| Wire-to-air η peak (AMCA 210) | 86% | 82% |
| Noise floor (Lw) | 60 dB(A) | 62 dB(A) |
| Voltage | 200–240 V 1Φ | 200–240 V 1Φ |
| Control input | 0–10 V / PWM / Modbus / EC-Control | 0–10 V / PWM / Modbus RTU / Modbus TCP Compatible |
| IP rating | IP54 / IP55 | IP54 std · IP55 / IP67 option |
| Certifications | CE · UL · VDE · EAC | CE · UL · cUL · TÜV · ATEX · VDE · EAC · RoHS · REACH |
| 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) |
Why Engineers Switch from DDP 9/9 EC to LWBE3G-250-EC
4–8× Faster Delivery
40–55% Lower Landed Cost
True Drop-In Compatibility
Drop-In Compatibility Details
Mechanical match
The LONGWELL LWBE3G-250-EC matches the Nicotra Gebhardt DDP 9/9 EC mounting pattern (M-mount, ISO 9001 plenum-fan footprint) within ±0.5 mm tolerance. Inlet ring diameter, motor shaft height, and electrical termination box position are identical. Drop-in retrofit requires no AHU rework, no plate modification, and no plenum hole resizing.
Electrical & control match
The LWBE3G-250-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. Default Modbus register map is compatible with the Nicotra Gebhardt ecosystem; LONGWELL provides a free Modbus map cross-reference for BMS integration. Nicotra Gebhardt-specific proprietary protocols (EC-Control bus / ZA-control) are bridged via a free MODBUS gateway available from LONGWELL Engineering — no BMS reprogramming required.
Performance match
The PQ curve of LONGWELL LWBE3G-250-EC sits within 2–3% of the Nicotra Gebhardt DDP 9/9 EC curve across the full operating envelope (verified by third-party AMCA 210/211 testing at TÜV and Intertek labs). Wire-to-air efficiency at BEP is 82% vs 86% for Nicotra Gebhardt (4 pp delta at peak). In typical part-load HVAC duty, the gap narrows to within 1 pp.
Typical Applications
The LWBE3G-250-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 LWBE3G-250-EC a true drop-in replacement for Nicotra Gebhardt DDP 9/9 EC?
How does LWBE3G-250-EC compare on efficiency to DDP 9/9 EC?
What's the 2026 lead time difference?
What's the cost delta?
What applications is LWBE3G-250-EC typically used for?
Replace your DDP 9/9 EC 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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