ebm-papst K3G133 Alternative — LONGWELL LWBE3G133
Looking for an alternative for ebm-papst K3G133-AA01-A2? The LONGWELL LWBE3G133 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 14–22 weeks ex-works ebm-papst. Widely deployed across Small AHU, residential range hoods, server rack ventilation.
LWBE3G133
Specification Comparison
| Specification | ebm-papst K3G133 | LONGWELL LWBE3G133 |
|---|---|---|
| Fan type | EC backward-curved centrifugal plug fan | EC backward-curved centrifugal plug fan |
| Impeller diameter | Ø133 mm | Ø133 mm 6 models |
| Airflow range | 150–500 m³/h | up to 473 m³/h |
| Static pressure (max) | 320 Pa | up to 609 Pa |
| Motor power (max) | 80 W | up to 72 W |
| Noise floor (Lw) | 50 dB(A) | from 63 dB(A) (nameplate, per model) |
| Voltage | 200–240 V 1Φ | 220–230 / 115 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 · ETL (UL 507 / CSA C22.2 No.113) · RoHS · REACH |
| Sample lead time | 4–10 weeks | 1–3 days |
| Series lead time (≤500 units) | 14–22 weeks | 15–30 days |
| Landed cost index (LONGWELL = 100) | 175–200 | 100 (baseline) |
Why Engineers Switch from K3G133 to LWBE3G133
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 LWBE3G133 matches the ebm-papst K3G133 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 LWBE3G133 accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control signals as ebm-papst K3G133. 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 LWBE3G133 is widely deployed across Small AHU, residential range hoods, server rack ventilation. Common application categories include:
- Small AHU
- Compact FFU
- Residential range hood
- Server cabinet ventilation
Particularly suited for server cabinet ventilation and compact residential range-hood OEM.
FAQ
Is LONGWELL LWBE3G133 a true drop-in replacement for ebm-papst K3G133?
How does LWBE3G133 compare on efficiency to K3G133?
What's the 2026 lead time difference?
What's the cost delta?
What applications is LWBE3G133 typically used for?
Replace your K3G133 — 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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