ebm-papst RadiPac 400 Alternative — LONGWELL LWBE3G400
Looking for an alternative for ebm-papst RadiPac 400? The LONGWELL LWBE3G400 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 16–22 weeks ex-works ebm-papst. Widely deployed across Active RDHx modules, CDU heat reject, L2A 40–70 kW/rack.
RadiPac 400
LWBE3G400
Specification Comparison
| Specification | ebm-papst RadiPac 400 | LONGWELL LWBE3G400 |
|---|---|---|
| Fan type | EC plug fan pre-assembled FFU module | EC plug fan pre-assembled FFU module |
| Impeller diameter | Ø400 mm | Ø400 mm 13 models |
| Airflow range | 1,000–5,800 m³/h | up to 9,682 m³/h |
| Static pressure (max) | 1400 Pa | up to 1,627 Pa |
| Motor power (max) | 1,500 W | up to 2,060 W |
| Noise floor (Lw) | 70 dB(A) | from 62 dB(A) (nameplate, per model) |
| Voltage | 380–480 V 3Φ | 220–230 V 1Φ · 380–400 V 3Φ |
| 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 single-phase 115/230 V versions (UL 507 / CSA C22.2 No.113) |
| Sample lead time | 4–10 weeks | 1–3 days |
| Series lead time (≤500 units) | 16–22 weeks | 15–30 days |
| Landed cost index (LONGWELL = 100) | 175–200 | 100 (baseline) |
Why Engineers Switch from RadiPac 400 to LWBE3G400
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 LWBE3G400 matches the ebm-papst RadiPac 400 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 LWBE3G400 accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control signals as ebm-papst RadiPac 400. LONGWELL provides the Modbus register map and a cross-reference to the ebm-papst map for BMS integration.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 LWBE3G400 is widely deployed across Active RDHx modules, CDU heat reject, L2A 40–70 kW/rack. Common application categories include:
- L2A 40–70 kW/rack
- Active RDHx
- CDU heat reject
Particularly suited for active RDHx and CDU heat-reject for 40–70 kW/rack AI deployments.
FAQ
Is LONGWELL LWBE3G400 a true drop-in replacement for ebm-papst RadiPac 400?
How does LWBE3G400 compare on efficiency to RadiPac 400?
What's the 2026 lead time difference?
What's the cost delta?
What applications is LWBE3G400 typically used for?
Replace your RadiPac 400 — 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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