K3G355-RT01-I3 ebmpapst 230VAC 355mm EC Centrifugal Fan

Description

The ebmpapst K3G355-RT01-I3 is a high-efficiency RadiPac EC centrifugal fan designed for precision airflow control in single-phase power environments. Driven by the M3G084-GF external rotor motor, this 355 mm unit is optimized for a 200-277 VAC input, consuming 750 W at a nominal speed of 2100 RPM with a current draw of 3.3 A. The fan features a 6-blade backward-curved impeller made of glass-fiber reinforced PA plastic and a robust mounting structure comprising a galvanized sheet steel support plate and black-painted steel brackets. With a remarkable overall static efficiency of 66% (Efficiency Grade N77.8), it far exceeds ErP 2015 requirements. The integrated electronics provide a professional suite of features, including RS-485 MODBUS-RTU, an integrated PID controller, active PFC, and comprehensive motor protection with SELV potential isolation. Designed for S1 continuous operation with an IP55 rating, the K3G355-RT01-I3 is an ideal plug-and-play solution for air handling units, ventilation systems, and specialized cooling applications requiring intelligent, energy-saving performance.

K3G355-RT01-I3 Fan Parameters
Model Number: K3G355-RT01-I3
Motor Number: M3G084-GF
Manufacturer: ebmpapst
Series: RadiPac Series
Type: EC Centrifugal Fan (Backward-curved)
Size: 355 mm
Motor Size: 84
Weight: 15.4 Kg
Bearing Type: Ball bearing
Nominal Voltage: 230 VAC
Voltage Range: 200 – 277 VDC
Phase: 1~
Frequency: 50 / 60 Hz
Power Consumption: 750 W
Nominal Current: 3.3 A
Speed: 2100 RPM
Max. Air Flow: 62.23 CFM (105.7 m³/h / 1.76 m³/min)
Max. Static Pressure: 9.81 mmH₂O (96.24 Pa / 0.39 inH₂O)
Actual Air Flow: 3205 m³/h (At optimum point)
Actual Static Pressure: 511 Pa (At optimum point)
Overall Efficiency: ηes 66% / Efficiency Grade N77.8
Motor Design: EC external rotor motor, painted black
Motor Protection: Thermal overload protector (TOP) internally connected
Technical Features: RS-485 MODBUS-RTU; Integrated PID controller; 0-10 VDC / PWM control input; Active PFC; Soft start; Power limiter; Motor current limitation; Line undervoltage / phase failure detection; Alarm relay; Operation and alarm display; Output 10 VDC (max. 10 mA)
Safety Features: Control interface with SELV potential safely disconnected from the mains; Touch current <= 3.5 mA
Insulation Class: Class F
Moisture/Env. Protection: H1
Electrical Hookup: Variable cable
Number of Blades: 6
Direction of Rotation: Clockwise, viewed toward rotor
Airflow Direction: Radial
Impeller Material: PA plastic
Electronics Housing: Die-cast aluminum
Support Plate Material: Sheet steel, galvanized
Support Bracket Material: Steel, painted black
Installation Position: Shaft horizontal or rotor on bottom; rotor on top on request
Condensation Drainage: On rotor side
Mode: S1
Degree of Protection: IP55
Protection Class: I
Operating Temperature: -40 – +55 °C
Standard Compliance: EN 61800-5-1, EN 60335-1, CE
Approval Agency: Listed under conformity standards

Application
The ebmpapst K3G355-RT01-I3 EC fan is primarily utilized in air handling units (AHU), precision data center cooling, cleanroom ventilation systems, and high-efficiency heat recovery units.