Description
The ebmpapst K3G250-AV29-B4 is a high-performance 230VAC single-phase EC Centrifugal Fan from the RadiPac series, featuring backward-curved impellers with a support bracket. Driven by the M3G084-FA (Size 84) GreenTech EC motor with integrated control electronics and active PFC, this 250 mm impeller size module is specifically engineered for mission-critical HVAC systems, data center cooling, and industrial ventilation. Operating on a wide nominal voltage range of 200 to 277 VAC, it delivers a Power Consumption of 750 W and a Current Draw of 3.3 A at a rated speed of 3450 RPM. Featuring a sheet aluminum impeller, a die-cast aluminum electronics housing, and integrated RS-485 MODBUS-RTU communication, it ensures an impressive overall efficiency of 62.5% and reliable continuous S1 operation in demanding environments at the end.
K3G250-AV29-B4 Fan Parameters
Model Number: K3G250-AV29-B4
Motor Model: M3G084-FA (Size 84)
Manufacturer: ebmpapst
Type: EC Centrifugal Fan Module – Backward-curved, single-intake with support bracket
Impeller Size: 250 mm
Dimensions: 400 x 400 x 260 mm
Weight: 10.1 kg
Bearing Type: Ball bearing
Nominal Voltage: 230 VAC
Nominal Voltage Range: 200 – 277 VAC
Phase: 1~
Frequency: 50 / 60 Hz
Method of Obtaining Data: ml (Max. load)
Current Draw: 3.3 A
Power Consumption: 750 W (0.75 kW)
Rated Speed: 3450 RPM (3490 RPM at optimum efficiency)
Max. Air Flow: 1032.9 CFM (1755.0 m³/h / 29.25 m³/min)
Static Pressure Increase: 90.65 mmH₂O (889.0 Pa / 3.57 inAq)
Overall Efficiency: 62.5% (Efficiency grade N: 74.3)
Impeller Material: Sheet aluminum, painted black
Housing Material: Die-cast aluminum, painted black (Electronics housing)
Support Bracket Material: Steel, painted black
Inlet Nozzle Material: Sheet steel, galvanized and painted black
Number of Blades: 7
Direction of Rotation: Clockwise (viewed toward rotor)
Insulation Class: “B”
Degree of Protection: IP54
Moisture (F) / Environmental (H) Protection Class: H2+S
Touch Current: <= 3.5 mA (acc. IEC 60990, Fig. 4, TN system)
Motor Protection: Thermal overload protector (TOP) internally connected
Technical Features: Control input 0-10 VDC / PWM; RS-485 MODBUS-RTU; Soft start; Active PFC; Alarm relay
Electrical Hookup: Terminal box
Installation Position: Any (Shaft horizontal or rotor on bottom/top)
Mode: S1 (Continuous operation)
Protection Class: I (if protective earth is connected)
Max. Ambient Temperature: 40 °C
Min. Ambient Temperature: -25 °C
Standard Compliance: EN 61800-5-1; CE; EN 61000-6-2/3
Approval: EAC; CCC
Application
The ebmpapst K3G250-AV29-B4 RadiPac module is the primary air-moving solution for high-efficiency Air Handling Units (AHUs), precision air conditioning, and industrial cooling systems requiring variable-speed 230V single-phase EC centrifugal airflow in a bracket-mounted 250mm configuration.
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