📝 Description

Used product.
ebm-papst centrifugal fan, model R2E 220-AA40-05, with backward-curved blades and single inlet, intended for forced cooling of industrial equipment, inverters, electrical panels, power electronics, and ventilation systems. The model is also identified by the M2E068-BF motor. The photographed configuration also includes the run capacitor and connection wiring.

⚙️ Technical Specifications

• Brand: ebm-papst
• Model: R2E 220-AA40-05
• Motor: M2E068-BF
• Type: AC centrifugal fan
• Configuration: single inlet, backward-curved impeller
• Power supply: 230 VAC
• Phase: Single-phase 1~
• Frequency: 50 / 60 Hz
• Current: 0.38 A at 50 Hz / 0.40 A at 60 Hz
• Power: 85 W at 50 Hz / 90 W at 60 Hz
• Speed: 2,600 rpm at 50 Hz / 2,700 rpm at 60 Hz
• Capacitor: 3 µF at 50 Hz / 2 µF at 60 Hz
• Capacitor voltage: 400 VDB
• Airflow: approx. 860 m³/h at 50 Hz / 900 m³/h at 60 Hz
• Noise level: 73 dB(A) at 50 Hz / 74 dB(A) at 60 Hz
• Impeller diameter: 220 mm
• Depth: approx. 71 mm
• Bearings: ball bearings
• Protection rating: IP44
• Insulation class: B
• Motor protection: TOP – integrated thermal overload protection
• Ambient temperature: −25…+40 °C
• Operation: continuous S1
• Rotation: clockwise (CW), viewed from the rotor side
• Origin: Made in Germany
  The photographed nameplate data — 230 V~, 50/60 Hz, 85/90 W, 2600/2700 rpm and 3/2 µF 400 VDB — correspond to the technical data for model R2E220-AA40-05.

⚡ Function in the Electrical System

The R2E 220-AA40-05 is a centrifugal fan powered directly from the 230 VAC mains, designed to generate high airflow and promote heat dissipation.
The backward-curved impeller provides an airflow suitable for systems requiring greater ventilation capacity than conventional axial fans.
It is therefore suitable for:

• photovoltaic and industrial inverters;
• converters and power supplies;
• electrical panels;
• power electronic equipment;
• HVAC and technical ventilation systems;
• industrial machinery.

🏭 Construction and Installation

The assembly consists of a Ø220 mm centrifugal impeller, central electric motor, and support structure. The body and impeller are manufactured according to the ebm-papst industrial configuration; documentation specifies 11 blades, an impeller made of glass-fiber-reinforced PA6, and a black-finished rotor.
The motor uses ball bearings and is designed for continuous S1 operation. TOP thermal protection is integrated into the motor. Installation can be carried out according to the positions specified by the manufacturer; the documentation indicates horizontal shaft or rotor facing downward, while rotor facing upward is permitted with the appropriate configuration.
Electrical connection must be carried out according to the manufacturer's specified wiring diagram and using the appropriate capacitor.

🌬️ Ventilation Performance

At 50 Hz, the fan reaches:

• 2,600 rpm
• 85 W
• 0.38 A
• 860 m³/h
• 73 dB(A)
• capacitor 3 µF / 400 V
  At 60 Hz:
• 2,700 rpm
• 90 W
• 0.40 A
• 900 m³/h
• 74 dB(A)
• capacitor 2 µF / 400 V
  The values refer to operation in free air and are those specified in the technical documentation for the model.

🛡️ Safety and Product Condition

The product is used and working, with normal signs of use and traces of dust/dirt visible on the impeller and structure. The capacitor and wiring are present and visible in the photographs.
⚠️ The fan operates directly at 230 VAC. Before any intervention, the power supply must be completely disconnected. The capacitor may retain an electrical charge even after disconnection and must be treated as a potentially hazardous component.
For replacement, it is essential to use the capacitor specified for the model and the mains frequency being used, and to correctly verify connections, grounding, and protections.

📦 Package Contents

• 1× ebm-papst centrifugal fan
• Model R2E 220-AA40-05
• M2E068-BF motor
• Capacitor included
• Wiring and connector as shown in the photographs
• Metal support/base

🚀 Final Description

The ebm-papst R2E 220-AA40-05 is a professional single-phase 230 VAC centrifugal fan, with M2E068-BF motor, Ø220 mm impeller, 50/60 Hz operation, 85/90 W power, 0.38/0.40 A current, and 2600/2700 rpm speed. Airflow reaches approximately 860/900 m³/h, with IP44, Class B insulation, ball bearings, TOP thermal protection, and continuous S1 operation. The photographed configuration also includes the relevant 3/2 µF – 400 VDB capacitor. The model is currently withdrawn/obsolete through some distribution channels, while spare parts and units are still available on the professional market.