Description
The ebmpapst R3G280-AU11-C1 is a high-performance 400VAC EC Centrifugal Fan with dimensions of 325 x 325 x 252.5 mm, featuring a RadiCal backward-curved, single-intake impeller with a support bracket, specifically engineered for mission-critical cooling in Industrial Frequency Converters and high-precision HVAC systems. Driven by a 3-phase high-efficiency EC external rotor M3G084-GF motor with integrated electronics and maintenance-free ball bearings, this 6.6 kg unit operates on a 380 – 480 VAC supply delivering a Max. Power Consumption of 1000 W and a Max. Current Draw of 1.6 A at a rated speed of 3100 RPM. This High-performance unit achieves a Max. Air Flow of 1415.6 CFM (2405.0 m³/h / 40.08 m³/min) and a Max. Static Pressure of 85.86 mmH₂O (842.0 Pa / 3.38 inAq). Featuring intelligent speed regulation via 0-10V/PWM and RS-485 MODBUS-RTU, integrated PID controller, and passive PFC, this 7-blade unit with sheet aluminum construction is optimized for industrial VFD systems requiring advanced motor protection and massive airflow in a black-painted rotor design at the end.
R3G280-AU11-C1 Fan Parameters
Model Number: R3G280-AU11-C1
Motor Model: M3G084-GF
Manufacturer: ebmpapst
Type: EC Centrifugal Fan (RadiCal, backward-curved, single-intake, with support bracket)
Impeller Size: 280 mm
Dimensions: 325 x 325 x 252.5 mm
Weight: 6.6 kg
Bearing Type: Ball bearing (sealed)
Phase: 3~
Nominal Voltage: 400 VAC
Nominal Voltage Range: 380 – 480 VAC
Frequency: 50 / 60 Hz
Method of Obtaining Data: ml (Max. load)
Max. Current Draw: 1.6 A
Max. Power Consumption: 1000 W
Rated Speed: 3100 RPM
Max. Air Flow: 1415.6 CFM (2405.0 m³/h / 40.08 m³/min)
Max. Static Pressure: 85.86 mmH₂O (842.0 Pa / 3.38 inAq)
Working Air Flow: 2405.0 m³/h
Static Pressure Increase: 842.0 Pa
Efficiency Grade N: 75.4
Overall Efficiency ηes: 64.6%
Control Interface: Control input 0-10 VDC / PWM; RS-485 MODBUS-RTU
Output Signal: Alarm relay; Status message via LED; Output 10 VDC (max. 10 mA)
Number of Blades: 7
Technical Features: Integrated PID controller; Passive PFC; MODBUS-RTU; Soft start; Power limiter; Motor current limitation; Line undervoltage / phase failure detection; Input for sensor 0-10 V or 4-20 mA
Motor Protection: Thermal overload protector (TOP) internally connected
Touch Current (IEC 60990): <= 3.5 mA
Insulation Class: Class B
Degree of Protection: IP54
Protection Class: I (if protective earth is connected)
Humidity Class: H1
Impeller Material: Sheet aluminum
Electronics Housing Material: Die-cast aluminum
Rotor Surface: Painted black
Direction of Rotation: Clockwise (viewed toward rotor)
Installation Position: Shaft horizontal or rotor on bottom; rotor on top on request
Condensation Drainage Holes: On rotor side
Mode: S1
Strength Class of Screws: 8.8
Ambient Temperature (Max.): 60 °C (Transport/Storage: +80 °C)
Min. Operating Temperature: -25 °C (Transport/Storage: -40 °C)
Standard Compliance: EN 61800-5-1; CE; UKCA
Approval: UL 1004-7 + 60730-1; CCC; EAC; CSA C22.2 No. 77 + CAN/CSA-E60730-1
Application
The ebmpapst R3G280-AU11-C1 RadiCal module is the primary cooling component for industrial frequency converters and high-precision ventilation systems requiring high-efficiency 400V EC performance, PID control, and integrated MODBUS-RTU communication.
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