R4E310-AO06-05: High-Efficiency Radial Ventilation
The R4E310-AO06-05 is a high-efficiency centrifugal fan featuring backward-curved blades. Unlike axial fans, this motorized impeller is designed to suck air in axially and discharge it radially, creating significant static pressure. This makes it the ideal solution for air handling units (AHUs), roof fans, and in-line duct fans where resistance filters reduce airflow. The 310mm impeller is typically made of high-grade fiberglass-reinforced plastic (PA6) or aluminum, ensuring a lightweight rotating mass that reduces bearing load and energy consumption.
Technical Specifications
- Impeller Diameter: 310 mm.
- Motor Design: M4E068-EC (External Rotor).
- Voltage: 230 VAC (Single-phase, 50/60 Hz).
- Blade Type: Backward curved (High aerodynamic efficiency).
- Speed: Approx. 1350 – 1400 RPM (4-pole).
- Protection: IP44 (Motor).
Lifecycle & Maintenance Diagnostics
Lifecycle State: Active. A staple in the HVAC industry for medium-pressure applications. Diagnosis: If the fan vibrates excessively, check for dust buildup on the blades. Backward-curved impellers are self-cleaning to an extent, but sticky industrial dust can cause imbalances. As a capacitor-run motor, a failure to reach full speed often indicates a degraded capacitor (check the µF rating on the label). Installation Advice: Since this is a motorized impeller without a housing (inlet ring required), ensuring the inlet nozzle (Inlet Ring) is correctly aligned and overlapped is critical for performance. A gap that is too wide causes recirculation and loss of pressure. Compatibility: Fully compatible with Siemens SIMATIC building management systems. It can be speed-controlled via voltage reduction (transformer or phase angle) to adjust airflow based on occupancy sensors managed by a PLC.
| Metric | Performance Data |
|---|---|
| Power Input | 85 – 110 W |
| Airflow Max | 1500+ m³/h |
| Capacitor | Typical 3µF or 4µF / 400V |
| Operating Temp | -25°C to +55°C |
Why choose Backward Curved?
Backward curved fans like the R4E310 series handle high pressure better than forward curved fans and are non-overloading; power consumption drops as airflow decreases (blocked filter), protecting the motor.
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