K3G250-RR17-02: The EC RadiCal Revolution
The K3G250-RR17-02 represents the cutting edge of ventilation technology, featuring ebm-papst’s GreenTech EC technology and the award-winning RadiCal impeller design. Unlike the AC models (K2E), this fan utilizes an electronically commutated (EC) motor, which combines the efficiency of DC motors with the simplicity of AC mains connection (200-240V input, converted internally). The RadiCal impeller is a hybrid construction that optimizes aerodynamics to reduce noise and energy consumption drastically. This unit is designed for modern, energy-efficient HVAC systems, data center cooling, and precision climate control.
Advanced Technical Specs (EC)
- Diameter: 250 mm.
- Technology: EC (Electronically Commutated).
- Voltage: 200-240 VAC (50/60 Hz).
- Control Input: 0-10 VDC / PWM for infinite speed control.
- Efficiency: Exceeds ErP 2015 standards significantly.
- Impeller: RadiCal (Glass-fiber reinforced composite).
Engineer’s Maintenance & Integration
Lifecycle State: Active (Premium). Diagnosis: The integrated electronics provide built-in diagnostics. A «Tach Output» allows the PLC to read the exact RPM. If the fan stops, check the 0-10V control signal. A broken control wire often defaults the fan to full speed or stop, depending on programming. Installation: Requires no external VFD or capacitor. Connect mains and control wires directly. Compatibility: This is an Industry 4.0 ready component. It connects directly to Siemens S7-1200 analog outputs (0-10V) or Modbus interfaces (if equipped on specific sub-version) to provide real-time thermal management. It is ideal for PID loop control where fan speed adjusts dynamically to maintain a set temperature.
| Parameter | EC Performance |
|---|---|
| Max Speed | 2950 RPM |
| Power Input | 170 W (at full load) |
| Airflow | Max 1600+ m³/h |
| Control | Integrated PID / 0-10V |
Energy Saving Note
Replacing an AC fan with this K3G250 unit can reduce energy consumption by up to 30% at full load, and over 50% at partial load, paying for itself in months.
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