This EC backward‑curved centrifugal fan operates with 230V power supply. Air enters axially into the centre of the rotating plastic impeller. Centrifugal force pushes air outward along backward‑curved blades, transforming rotational energy into static pressure.
The Lobisong LBE2E133-072NS-01 is a 133mm EC centrifugal blower engineered for high-resistance ventilation and heat dissipation. Powered by a 230V EC motor rated at 72W, this compact backward curved high static pressure fan delivers up to 473m³/h of airflow and 609Pa of maximum static pressure while keeping noise low. Its built-in EC controller supports 0-10VDC and PWM speed regulation, so designers can tune the airflow of this energy-efficient centrifugal fan to actual thermal load. A maintenance-free ball bearing system, IP55 ingress protection and Class F insulation enable continuous, reliable duty from -25°C to +60°C. As a genuine IP55 industrial fan, this EC centrifugal blower suits HVAC units, electrical cabinets and air purification systems, and we also provide HVAC fan OEM service for global customers.
Modern electrical enclosures, HVAC air-handling units and industrial machinery demand a compact EC centrifugal blower that can push air against significant aerodynamic resistance. The Lobisong 133mm high static pressure fan answers this challenge with a backward curved impeller geometry. Air enters axially into the rotating plastic impeller, accelerates along backward-curved blades and discharges radially at 90° to the shaft, converting rotational energy into static pressure without turbulence or stall. The result is an energy-efficient centrifugal fan that keeps airflow stable when system resistance rises steeply.
Because every watt is converted into useful pressure and airflow, this 133mm EC centrifugal blower achieves strong performance from a small footprint. The lightweight plastic impeller resists corrosion and keeps this IP55 industrial fan easy to integrate into space-constrained designs. Whether fitted to a VFD cabinet, an air purifier or a heat-recovery ventilator, this high static pressure fan provides the dependable, energy-efficient air movement that modern equipment requires, and our HVAC fan OEM support helps you customize parameters for your machine.
To summarize, the Lobisong 133mm EC centrifugal blower combines a backward curved centrifugal fan design with an energy-efficient EC motor in one compact IP55 industrial fan. As an HVAC fan, an EC centrifugal blower or a high static pressure fan, this 230V energy-efficient centrifugal fan delivers dependable airflow with low noise, and this 133mm EC centrifugal blower can also be configured as a variable speed fan. Contact Lobisong for HVAC fan OEM specification.
The backward curved blade geometry of this 133mm EC centrifugal blower produces a steep pressure curve and prevents stall against dense filters and long ductwork. This high static pressure fan suits high-resistance systems where ordinary axial fans fail, and its high static pressure output protects downstream components from overheating, making this energy-efficient centrifugal fan ideal for IP55 industrial fan applications.
The 230V EC centrifugal blower drive accepts 0-10VDC or PWM speed signals for stepless airflow modulation. System integrators can reduce the speed of this high static pressure fan at light load to cut power and noise, then increase it instantly when heat load rises, a core advantage of this energy-efficient centrifugal fan for HVAC fan OEM projects.
Stall protection, reverse-polarity protection, over-voltage protection and soft-start are built into this EC centrifugal blower as standard. These safeguards protect the motor from blocked impellers and voltage surges, and the high static pressure fan is rated for continuous S1 duty in unattended equipment, meeting the strict requirements of IP55 industrial fan and HVAC fan OEM projects.
With a 133mm rotor diameter and a lightweight plastic impeller, this EC centrifugal blower fits easily into cabinets and OEM equipment without redesigning the chassis, making it a preferred high static pressure fan and energy-efficient centrifugal fan for space-limited thermal management, and our HVAC fan OEM team supports custom modification for this IP55 industrial fan.
Rated IP55 against dust and water splash and insulated to Class F, this EC centrifugal blower operates reliably from -25°C to +60°C in dusty workshops and humid environments, keeping performance stable over tens of thousands of hours. This IP55 industrial fan is a robust high static pressure fan and energy-efficient centrifugal fan widely selected for HVAC fan OEM orders.
| Parameter | Technical Specification Value |
| Model Series | Lobisong LBE2E133-072NS-01 (EC Backward Curved Centrifugal Fan / EC centrifugal blower) |
| Fan Type | EC Backward-Curved Centrifugal Fan / EC centrifugal blower |
| Impeller Material | Plastic |
| Impeller Diameter | 133 mm |
| Type of Voltage | EC |
| Nominal Voltage | 230 VAC |
| Power Input | 72 W |
| Nominal Speed | 5220 RPM |
| Maximum Static Pressure | 609 Pa |
| Maximum Airflow | 473 m³/h |
| Control Signal | 0-10VDC / PWM |
| Bearing Assembly | Maintenance-Free Ball Bearings |
| Protections | Stall Protection, Reverse-Polarity & Over-Voltage Protection, Soft-Start |
| Ingress Protection Rating | IP55 (IP55 industrial fan) |
| Insulation Class | Class F |
| Mode of Operation | S1 (Continuous Duty) |
| Mounting Position | Horizontal or Vertical |
| Direction of Rotation | Clockwise, seen on rotor |
| Operating Temperature Range | -25°C to +60°C |
HVAC Units: Forced-air ventilation for air handling units and heat recovery ventilators, where this EC centrifugal blower maintains airflow against filter resistance. This high static pressure fan is our core HVAC fan OEM solution.
Industrial Cabinets: Heat dissipation for VFD enclosures, telecom cabinets and control panels needing a compact high static pressure fan, our IP55 industrial fan and energy-efficient centrifugal fan fit these cabinet cooling projects.
Air Purification Systems: Air circulation in purifiers, cleanrooms and fume extraction equipment requiring stable, low-noise EC centrifugal blower output, this energy-efficient centrifugal fan is popular for HVAC fan OEM orders.
Dust-Removal Equipment: Reliable airflow in dust collectors and filtration machinery operating in harsh workshop environments, this IP55 industrial fan and high static pressure fan delivers stable performance.
Refrigeration Devices: Cooling for condensers, dehumidifiers and commercial refrigeration units where this EC centrifugal blower matches airflow to thermal load, this energy-efficient centrifugal fan supports HVAC fan OEM customization.
Direct Manufacturer Cost Optimization: Factory-direct engineering and pricing significantly lower total BOM costs for OEM clients of this EC centrifugal blower, our high static pressure fan and IP55 industrial fan bring great cost advantage for HVAC fan OEM partners.
Energy-Efficient EC Drive: Stepless speed control reduces power draw of this energy-efficient centrifugal fan and cuts the long-term operating cost of the complete machine. The EC centrifugal blower works as a high static pressure fan for HVAC fan OEM projects.
Customized Engineering Support: OEM options include special lead wire lengths, connectors, mounting flanges, speed controllers and tailored coatings for this EC centrifugal blower, IP55 industrial fan and high static pressure fan in HVAC fan OEM cooperation.
Global Quality Compliance: Produced under ISO9001 quality management, CE and RoHS compliant, with stable volume production and global shipping of this energy-efficient centrifugal fan, EC centrifugal blower and IP55 industrial fan for HVAC fan OEM customers.
A: It delivers up to 473m³/h of airflow and 609Pa of maximum static pressure at 5220RPM, making this high static pressure fan an energy-efficient centrifugal fan ideal for dense filters and long duct runs, it is a popular IP55 industrial fan for HVAC fan OEM.
A: Yes. The built-in EC controller accepts 0-10VDC and PWM signals for continuous airflow modulation, so this high static pressure fan matches cooling output to changing thermal load. This energy-efficient centrifugal fan is widely supplied as HVAC fan OEM IP55 industrial fan.
A: Stall, reverse-polarity, over-voltage and soft-start protection are integrated as standard to protect the EC motor of this EC centrifugal blower from abnormal operating conditions, the high static pressure fan is our reliable IP55 industrial fan and energy-efficient centrifugal fan for HVAC fan OEM.
A: With IP55 protection and Class F insulation, this high static pressure fan runs reliably from -25°C to +60°C in dusty, humid and thermally demanding industrial sites. This IP55 industrial fan and energy-efficient centrifugal fan is available for HVAC fan OEM cooperation.
This EC backward‑curved centrifugal fan operates with 230V power supply. Air enters axially into the centre of the rotating plastic impeller. Centrifugal force pushes air outward along backward‑curved blades, transforming rotational energy into static pressure.
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