

Configured for Air Handling, the ebm-papst K3G355-AY40-02 is a 380-480V EC backward-curved centrifugal fan, identified by a listed acoustic value of 73 dB. It gives engineers a clear comparison point.
| Rated Voltage(V) | 3`380-480 |
|---|---|
| Size(mm) | 355 |
| Max.Air Flow(m³/h) | 6275 |
| Max.Pressure(Pa) | 1130 |
| Input Power(W) | 1700 |
| Speed(rpm) | 2600 |
| Noise(db) | 73 |
The ebm-papst K3G355-AY40-02 is an EC centrifugal blower for hvac systems, providing directed airflow in enclosures and cooling assemblies.
Data includes 3`380-480 V operation, airflow up to 6275 m³/h and pressure up to 1130 Pa for matching airflow to system resistance. The datasheet lists ball-bearing support, PWM/0-10 V/MODBUS speed control for durable motor support. Listed noise is 73 dB at the stated test point. Correct electrical selection and clear inlet spacing support efficient cooling, reliable operation and long fan life.
Suitable for OEM engineers, manufacturers and maintenance buyers, the K3G355-AY40-02 should be checked for wiring, mounting, duty point and ambient limits before selection.
The ebm-papst K3G355-AY40-02 from the Compact EC Centrifugal series is a direct energy-saving replacement for legacy AC fans including R4D, R2D. Key benefits:
K3G EC fans operate at V with W rated power. When replacing AC models, wire the 0-10V control signal alongside the standard three-phase power cable.
How the K3G355-AY40-02 compares to nearby K3G series variants:
| Model | K3G097-AK34-43 | K3G190-RD45-03 | K3G250-AV29-B2 | K3G250-PR17-W9 |
|---|---|---|---|---|
| Air Flow | 1195 m³/h | 524 m³/h | 3120 m³/h | 2405 m³/h |
| Power | 325 W | 169 W | 750 W | 1160 W |
| Noise | — dB | — dB | 63 dB | — dB |
| Size | 97 mm | 190 mm | 250 mm | 250 mm |
All K3G series fans from Hengrui include performance curves, mounting instructions and factory warranty. Contact us for project-specific selection.
Data Center CRAH/CRAC Units: The K3G355-AY40-02 delivers reliable cooling for Computer Room Air Handling with 24/7 uptime. EC motor enables precise temperature control.
AHU Air Handling: Engineered for integration into Air Handling Units.
Industrial Process Ventilation: Machinery cooling, enclosure ventilation and process air movement. Hengrui provides custom engineering support.
The workbook marks it In Stock, but quantity and lead time should be reconfirmed at quotation because availability can change.
Its EC backward-curved centrifugal fan configuration and a listed acoustic value of 73 dB provide model-specific criteria for matching Air Handling systems.
Compare 355 mm, 380-480V, 1,700 W plus mounting, connector and duty-point requirements.
Provide service access, keep the airflow path clean, inspect wiring and mounting, and investigate abnormal noise or vibration before continued use.

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