Moteur 3phases BONFIGLIOLI BN 80 B6 FD
The Bonfiglioli BN 80 B6 FD three phase motor is an industrial electric motor built on the IEC 80 frame size with a six pole configuration. The six pole design produces a lower synchronous speed than a four pole motor, which makes it suitable for applications that require higher torque at lower speeds. The BN series from Bonfiglioli is a well established range of three phase asynchronous motors that are widely used in industrial drive systems. The FD designation identifies a specific configuration within the BN range.
Product Overview
The BN series motors are designed for reliable continuous operation in a wide range of industrial environments. The BN 80 B6 FD uses the IEC 80 frame, which is a compact and versatile frame size that fits many standard mounting arrangements. The six pole configuration produces a nominal speed of approximately 900 rpm at 50 Hz, which is lower than the approximately 1400 rpm of a four pole motor. This lower speed is advantageous in applications where high torque is needed without additional gear reduction.
The motor is constructed with high quality materials and manufacturing processes to ensure long service life and dependable performance. The standard electrical configuration simplifies wiring and control integration. The motor can be paired with a gearbox when further speed reduction is required, or it can be used as a direct drive motor in applications that match its speed and torque characteristics.
Key Features
IEC 80 frame three phase motor for standard mounting compatibility
Six pole configuration for lower speed and higher torque
Robust construction for continuous industrial duty
Standard electrical connections for straightforward wiring
Fan cooling for effective heat dissipation
Reliable performance in fans, pumps, and small conveyors
Compact frame size for space constrained installations
Suitable for general industrial machinery
Technical Specifications
Model: BN 80 B6 FD
Frame size: IEC 80
Pole configuration: Six pole
Motor type: Three phase asynchronous motor
Nominal speed: Approximately 900 rpm at 50 Hz
Cooling: Fan cooled
Mounting: Standard IEC frame mounting
Duty: Continuous industrial duty
Electrical connection: Standard terminal box
Protection: Suitable for normal industrial environments
Performance and Efficiency
The six pole configuration of the BN 80 B6 FD provides lower speed and higher torque compared to a four pole motor of the same frame size. This characteristic is useful in applications where the driven equipment operates at lower speeds or where high starting torque is required. The motor is designed to deliver stable performance across its operating range, with good efficiency and reliable thermal behavior.
The fan cooling system helps maintain stable motor temperatures during continuous operation. The robust construction of the BN series supports long service life in demanding industrial environments. The motor can be paired with standard control devices such as contactors, overload relays, and variable frequency drives when speed adjustment is needed. The standard electrical connections simplify integration into existing control systems.
Applications
The Bonfiglioli BN 80 B6 FD three phase motor is suitable for a wide range of industrial applications. It is commonly used in fans, pumps, small conveyors, and general industrial machinery. The lower speed of the six pole design makes it particularly useful in applications where the driven equipment operates at moderate speeds without additional gear reduction.
The compact IEC 80 frame makes it easy to integrate into machines where space is limited. The motor can be used as a standalone drive or paired with a gearbox for applications that require further speed reduction. The robust construction and reliable performance make it suitable for continuous duty in many industrial environments. The standard electrical configuration simplifies wiring and control integration.
Installation Guidelines
Installation of the BN 80 B6 FD should begin with a careful check of the nameplate data and a visual inspection of the motor. The motor should be mounted on a rigid base that can withstand the torque reaction during operation. The output shaft should be aligned with the driven equipment to prevent excessive radial loads and premature bearing wear. Couplings should be fitted according to the manufacturer recommendations and checked for proper alignment.
Electrical connections should be made by qualified personnel following local regulations. The motor should be wired for the correct supply voltage and the direction of rotation should be verified before connecting the load. Proper grounding is essential for safe operation. After installation, a brief run in period without load helps confirm that the motor operates smoothly and without abnormal noise or vibration.
Maintenance Recommendations
Regular maintenance helps ensure the long term reliability of the BN 80 B6 FD motor. The cooling fan and fan cover should be kept clean to maintain adequate airflow. Bearing noise and vibration should be monitored, and any abnormal signs should be investigated promptly to prevent unexpected failures. The motor insulation resistance can be measured periodically to detect deterioration.
Electrical connections should be inspected for tightness and signs of overheating. In environments with dust or moisture, additional protection measures may be needed to preserve the service life of the motor. Following a consistent maintenance schedule helps avoid downtime and extends the operating life of the motor. Proper record keeping of maintenance activities also helps identify trends that may require attention.
Selection Considerations
When selecting the BN 80 B6 FD motor, engineers should confirm that the speed and torque match the requirements of the driven equipment. The six pole configuration produces a lower speed than a four pole motor, which may be advantageous in applications that require higher torque at lower speeds. The motor voltage and frequency should match the available power supply, and the control method should be chosen based on whether fixed speed or variable speed operation is needed.
The IEC 80 frame size is compact but still provides enough power for many light and medium duty applications. For applications with high starting torque or frequent reversing, the motor should be sized with additional margin to ensure reliable long term operation. The standard mounting dimensions make it easy to integrate the motor into new and existing machines.
Conclusion
The Bonfiglioli BN 80 B6 FD three phase motor offers a reliable and compact drive solution with an IEC 80 frame and six pole configuration for lower speed and higher torque. Its robust construction, fan cooling, and standard electrical connections make it suitable for fans, pumps, small conveyors, and general industrial machinery. With proper installation and maintenance, this motor provides dependable performance and long service life.
