R3G450-PA31-03 ebmpapst 380V-480V fan

Description

The ebmpapst R3G450-PA31-03 is an ultra-high-power 3-phase EC Centrifugal Fan featuring a 450 mm backward-curved aluminum impeller, representing the pinnacle of the RadiPac industrial series. Driven by the massive M3G150-FF GreenTech EC motor, this unit operates on a 380-480 VAC supply and is engineered for the most demanding air handling and industrial cooling applications. It delivers exceptional performance with a power consumption of 4450 W and a rated speed of 2480 RPM. Constructed with a die-cast aluminum electronics housing and a 5-blade sheet aluminum impeller, this 20.48 kg unit provides extreme durability and high static pressure capabilities. The integrated intelligent controller features MODBUS V6.3 (RTU), an integrated PI controller, and configurable I/Os, all while maintaining IP55 protection and H1 environmental resistance. Designed for continuous S1 operation, the R3G450-PA31-03 is a mission-critical solution for large-scale data center FanGrids, industrial AHUs, and high-performance refrigeration systems.

8317084876 R3G450-PA31-03 Fan Parameters
Manufacturer: ebmpapst (Germany)
Model Number: R3G450-PA31-03
Motor Model: M3G150-FF (Size 150)
Phase: 3~
Type: EC Centrifugal Fan (High-Power RadiPac Series)
Impeller Size: 450 mm
Dimensions: 450 mm (Diameter) x 305 mm (Axial Depth)
Nominal Voltage: 400 VAC
Nominal Voltage Range: 380 – 480 VAC
Frequency: 50 / 60 Hz
Speed: 2480 RPM
Power Consumption: 4450 W
Current Draw: 6.8 A
Power Factor Correction: Passive (Low-capacitance DC link)
Touch Current: <= 3.5 mA (per IEC 60990) Weight: 20.48 kg Rotor Surface: Painted black Electronics Housing: Die-cast aluminum Impeller Material: Sheet aluminum Number of Blades: 5 Direction of Rotation: Clockwise (viewed toward rotor) Degree of Protection: IP54 / IP55 (Environment dependent) Insulation Class: F Environmental Protection Class: H1 Operating Temp. Range: -40 °C to +40 °C (Occasional start-up -40°C to -25°C) Max. Storage Temp: +80 °C Min. Storage Temp: -40 °C Installation Position: Shaft horizontal or rotor on bottom Condensation Drainage: Rotor side holes included Mode of Operation: S1 (Continuous duty) Bearing Type: Dual Ball Bearing Motor Protection: Reverse polarity, Locked-rotor, Phase failure, Thermal overload Technical Features: LED status display, 15-50 VDC Parameter input, Alarm relay, Integrated PI controller, Configurable I/O, Soft start, 3.3-24 VDC output (800mW) Control Interface: RS-485 MODBUS-RTU (V6.3) EMC Immunity: Acc. to EN 61000-6-2 (Industrial) EMC Emission: Acc. to EN 61000-6-3 (Household/Professional) Conformity & Approvals: CE, UKCA, EN 61800-5-1, UL 1004-7, CSA C22.2 No. 77, EAC Application The ebmpapst R3G450-PA31-03 is a heavy-duty EC air-moving solution designed for high-capacity air handling units (AHU), industrial clean room FanGrids, and large-scale commercial refrigeration evaporators. Its 450 mm aluminum 5-blade impeller is specifically optimized to handle massive air volumes and high static pressures associated with long-distance ducting and multi-stage filtration. The 4450 W high-torque motor allows for precise airflow management via MODBUS-RTU, ensuring that the system can adapt to real-time cooling loads while maintaining IE5-level efficiency. With a robust 20.48 kg die-cast construction and H1 moisture protection, this fan is ideal for 380-480V environments where reliability, advanced diagnostics (via integrated LED and Modbus), and extreme power density are required for 24/7 mission-critical operations.