This EC backward‑curved centrifugal fan runs on 230V power supply. Air flows axially into the centre of the rotating plastic impeller. Centrifugal force accelerates air outward along backward‑curved blades, converting rotational energy into static pressure.
The Lobisong LBE2E155-040NS-01 is a 155mm EC centrifugal fan designed for energy-conscious ventilation and heat dissipation. Powered by a 230V EC motor with only 40W input and 0.3A current draw, this EC centrifugal blower produces up to 433m³/h of airflow and 371Pa of maximum static pressure at just 63dB(A). Its integrated EC controller provides 0-10VDC and PWM speed regulation, while stall, reverse-polarity, over-voltage and soft-start protection ensure dependable operation. With IP55 protection, Class F insulation and maintenance-free ball bearings, this low noise centrifugal fan operates from -25°C to +60°C for HVAC units and industrial cabinets.
Compact, quiet and highly efficient, the Lobisong 155mm EC centrifugal fan is built for equipment that must move air against resistance without wasting energy. Air enters axially into the rotating plastic impeller and accelerates along backward-curved blades, converting rotational energy into static pressure and discharging flow at 90° to the shaft. The optimized blade profile of this backward curved centrifugal fan minimizes turbulence, sustaining smooth, high-pressure air delivery with low noise.
At only 40W power input, this 155mm EC centrifugal fan is one of the most efficient blowers in its class, helping OEMs reduce energy consumption and thermal-management cost. The robust plastic impeller keeps the weight of this centrifugal blower low for easy installation, while the EC drive allows this EC fan to match airflow precisely to changing load conditions.
To summarize, the Lobisong 155mm EC centrifugal fan pairs a backward curved centrifugal fan design with a 40W EC motor for maximum efficiency. This low noise centrifugal fan also works as an HVAC centrifugal fan and a variable speed blower, while the 230V EC fan drive keeps installation simple. Contact Lobisong for OEM specification.
With just 40W input at 230V, this 155mm EC centrifugal fan converts nearly all electrical energy into useful airflow and static pressure. Lower power draw reduces heat generation inside the equipment and cuts lifetime energy bills, making this EC fan a smart choice for continuous‑duty applications.
The optimized backward curved blades and balanced plastic impeller keep the acoustic output of this EC centrifugal fan to only 63dB(A). This low noise centrifugal fan suits offices, cleanrooms and residential HVAC applications where quiet operation matters.
The built‑in EC controller accepts 0‑10VDC or PWM signals for continuous airflow modulation, so this centrifugal fan can be matched precisely to cooling demand and noise limits. This variable speed blower function also reduces energy use at light load.
Stall, reverse‑polarity, over‑voltage and soft‑start protection guard this EC motor against abnormal conditions and reduce inrush current at start‑up, so operators can rely on this centrifugal blower for safe, unattended operation.
Sealed to IP55 and insulated to Class F, this EC centrifugal blower operates from -25°C to +60°C, handling dust, moisture and temperature swings in demanding industrial environments without performance degradation.
| Parameter | Technical Specification Value |
| Model Series | Lobisong LBE2E155‑040NS‑01 (EC Backward Curved Centrifugal Fan) |
| Fan Type | EC Backward‑Curved Centrifugal Fan |
| Impeller Material | Plastic |
| Impeller Diameter | 155 mm |
| Type of Voltage | EC |
| Nominal Voltage | 230 VAC |
| Power Input | 40 W |
| Current | 0.3 A |
| Nominal Speed | 3750 RPM |
| Maximum Static Pressure | 371 Pa |
| Maximum Airflow | 433 m³/h |
| Noise Level | 63 dB(A) |
| 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 |
| 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: Ventilation for air handling units, heat recovery ventilators and air purifiers where this EC centrifugal fan delivers stable airflow.
Industrial Cabinets: Cooling for control panels, telecom enclosures and VFD cabinets that require a compact, low noise centrifugal fan.
Air Purification Systems: Stable airflow for filters, cleanrooms and fume extraction devices powered by this centrifugal blower.
Refrigeration and Cooling: Condenser and dehumidifier cooling in commercial equipment, with EC speed control saving energy at partial load.
Dust‑Removal and Mechanical Ventilation: Dependable air movement in dust collectors and general industrial ventilation systems.
Factory‑Direct OEM Pricing: Direct manufacturer supply reduces procurement cost and shortens the BOM budget for machine builders using this EC fan.
Low Total Cost of Ownership: Only 40W input at 230V lowers energy consumption and heat load of the centrifugal blower, cutting lifetime operating expenses.
Customized Engineering Support: OEM customization includes special lead wires, connectors, mounting flanges, speed controllers and tailored coatings.
Stable Supply and Compliance: ISO9001‑certified production, CE and RoHS compliance, reliable volume delivery and global shipping.
A: It provides up to 433m³/h of airflow and 371Pa of maximum static pressure at 3750RPM, with a power input of only 40W for this EC fan.
A: The maximum acoustic level is just 63dB(A), making this low noise centrifugal fan suitable for cleanrooms, offices and residential HVAC equipment.
A: Yes. The built‑in EC controller accepts 0‑10VDC or PWM signals, turning this centrifugal fan into a variable speed blower with continuous airflow regulation.
A: Stall, reverse‑polarity, over‑voltage and soft‑start protection are built in, and this centrifugal fan operates from -25°C to +60°C with IP55 ingress protection.
This EC backward‑curved centrifugal fan runs on 230V power supply. Air flows axially into the centre of the rotating plastic impeller. Centrifugal force accelerates air outward along backward‑curved blades, converting rotational energy into static pressure.
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