R3G355-AI56-01 ebmpapst 380V 1.75A fan

Description

The ebmpapst R3G355-AI56-01 is a high-efficiency 355 mm EC Centrifugal Fan (Backward Curved, Single Inlet) designed for continuous operation (S1). It operates on a three-phase AC nominal voltage of 400 VAC with a voltage range of 380 VAC to 480 VAC at 50/60 Hz. The fan achieves a speed of 2200 RPM, with a maximum power consumption of 950 W and a current draw of 1.75 A. It delivers a maximum air flow of 2805 m³/h and provides a high static pressure of 642 Pa (2.58 inAq). This fan features an IP54 protection rating, integrated passive Power Factor Correction (PFC), soft start, and comprehensive electronic protection, making it ideal for large air handling units, industrial ventilation, and data center cooling demanding both high pressure and peak energy efficiency.

R3G355-AI56-01 Fan Parameters
Model: R3G355-AI56-01
Manufacturer: ebmpapst
Type: EC Centrifugal Fan (Backward Curved, Single Inlet)
Dimensions (Impeller Diameter): 355 mm
Nominal Voltage: 400 VAC (3-Phase)
Nominal Voltage Range: 380 VAC to 480 VAC
Frequency: 50/60 Hz
Motor: M3G112-EA
Speed: 2200 RPM
Power Consumption: 950 W
Current Draw: 1.75 A
Max. Airflow: 2805 m³/h
Max. Static Pressure: 642 Pa (2.58 inAq)
Overall Efficiency: 59.9 %
Efficiency Grade: N=70.9 (Static)
Weight: 8.4 kg
Housing Material: Die-cast aluminum
Impeller Material: Sheet aluminum
Number of Blades: 6
Rotor Surface: Painted black
Type of Protection: IP54
Protection Class: I
Insulation Class: B
Humidity/Environmental Protection Class: H1
Bearing Type: Ball Bearing
Operation Mode: S1
Direction of Rotation: Clockwise, viewed toward rotor
Electrical Connection: Via terminal box
Motor Protection: Thermal overload protector internally connected, Over-temperature protected electronics, Line undervoltage / phase failure detection
Control Interface: 0-10 VDC / PWM Input, Output for slave 0-10 V, Input for sensor 0-10 V or 4-20 mA
Monitor Output: 10 VDC Output, 20 VDC Output, Alarm relay
Additional Features: Integrated PID controller, Passive Power Factor Correction (PFC), Soft start, Motor current limit
Min. Ambient Temperature: -25 °C
Max. Ambient Temperature: 60 °C
Touch Current: <= 3.5 mA
Approvals: CCC, EAC, UL 1004-3, CE

Application
The ebmpapst R3G355-AI56-01 is specifically optimized for high-performance air movement in systems requiring high airflow against significant static pressure. Primary applications include advanced HVAC systems, air handling units (AHUs), large-scale Fan Wall arrays in data centers, high-efficiency cleanroom filtration, and industrial process ventilation where energy efficiency, precise control, and integration with building management systems (BMS) are crucial due to its integrated PID controller and multiple control inputs.