Description
The ebmpapst R3G250-AY11-C1 is a high-performance 400VAC 3-phase EC Centrifugal Fan with a 250 mm backward-curved aluminum impeller, specifically engineered for mission-critical cooling in Industrial Frequency Converters and high-capacity AHU systems. Driven by a high-torque M3G084-GF brushless EC motor with integrated electronics and precision ball bearings, this 6.4 kg unit operates within a 380 – 480 VAC range across 50/60 Hz frequencies, delivering a Max. Power Consumption of 820.0 W and a Max. Current Draw of 1.35 A at a rated speed of 3580 RPM. This High-performance unit features a 7-blade aerodynamic sheet aluminum impeller achieving a Max. Air Flow of 1805.0 m³/h (1062.4 CFM / 30.08 m³/min) and a Max. Static Pressure of 92.59 mmH₂O (908.0 Pa / 3.65 inH₂O). Featuring a maintenance-free structure and integrated RS-485 MODBUS-RTU interface with PWM speed control, this IP54-rated fan is optimized for environments requiring extreme high-pressure stability and intelligent system integration in industrial VFD and ventilation systems at the end.
R3G250-AY11-C1 Fan Parameters
Model Number: R3G250-AY11-C1
Manufacturer: ebmpapst
Motor Model: M3G084-GF
Type: EC Centrifugal Fan (Backward-curved)
Impeller Size: 250 mm
Weight: 6.4 kg
Bearing Type: Ball bearing
Nominal Voltage: 400 VAC (3-phase)
Voltage Range: 380 – 480 VAC
Frequency: 50 / 60 Hz
Max. Current Draw: 1.35 A
Max. Power Consumption: 820.0 W
Rated Speed: 3580 RPM
Max. Air Flow: 1062.4 CFM (1805.0 m³/h / 30.08 m³/min)
Max. Static Pressure: 92.59 mmH₂O (908.0 Pa / 3.65 inH₂O)
Working Air Flow: 1805.0 m³/h
Static Pressure Increase: 908.0 Pa
Overall Efficiency (ηes): 63.4 %
Control / Signal Output: RS-485 MODBUS-RTU; 0-10V / PWM Input; FG Speed Signal
Technical Features: Integrated PID controller; PFC (Passive); Soft start; Alarm relay
Output Voltages: 10 VDC (max. 10 mA) / 20 VDC (max. 50 mA) / 24 VDC input
Motor Protection: Thermal overload protection (TOP) internally connected; Phase failure detection
Insulation Class: Class B
Degree of Protection: IP54 / Protection Class I
Electrical Hookup: Terminal box
Number of Blades: 7
Direction of Rotation: Clockwise (viewed toward rotor)
Impeller Material: Sheet aluminum
Electronics Housing: Die-cast aluminum
Service Life: 45,000 h (at 40 °C)
Operating Temperature: -25 – +60 °C
Standard Compliance: EN 61800-5-1; CE; UL 1004-7; CSA C22.2; CCC; EAC
Application
The ebmpapst R3G250-AY11-C1 centrifugal fan is the primary cooling component for high-power industrial frequency converters, large-scale air handling units (AHU), and data center cooling systems requiring MODBUS-RTU communication and high-pressure performance in 400VAC 3-phase environments.
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