Get now: Bonfiglioli BN 80A 4 230/400-50 IP55 Asynchronous Motor
Atlantechdrives provides you the BN 80A 4, a high-reliability industrial electric motor from the standard BN series. This motor is the global standard for industrial power, offering a robust and simple design that is easy to maintain and highly durable. With an IP55 protection rating, it is built to survive in environments with dust and water splashes, making it suitable for everything from food processing to heavy metal manufacturing.
- Power: 0.55 kW (0.75 HP)
- Polarity: 4 Poles (~1410 RPM at 50Hz)
- Voltage: 230/400V Three-phase
- Frequency: 50 Hz
- Protection: IP55 (Dust and splash proof)
- Frame Size: 80A
- Insulation: Class F (155°C temperature limit)
Efficiency and Construction of the BN 80A Series
The Bonfiglioli BN 80A 4 is constructed with a high-pressure die-cast aluminum frame, designed for maximum thermal conductivity. The 4-pole design provides a steady speed and high starting torque, making it ideal for prime movers in gearmotor assemblies. The stator windings are vacuum-impregnated with specialized resins to ensure electrical integrity against mechanical vibration and humidity. The rotor is dynamically balanced to ensure smooth operation across the entire speed range. As a standard IEC motor, it features a standardized shaft and flange diameter, making it a drop-in replacement for legacy systems or a perfect match for Bonfiglioli gear units like the W 75 or VF 30 series. The IP55 protection ensures that internal components are shielded from common industrial contaminants, significantly extending the motor’s operational life.
Installation Advice: Electrical Safety and Thermal Management
When installing the BN 80A 4, always verify the wiring configuration in the terminal box for either Star (400V) or Delta (230V) connection. Incorrect wiring is the primary cause of motor burnout during commissioning. Ensure the motor is protected by a correctly sized thermal overload relay to prevent damage during a stalled-rotor event. For cooling, maintain at least 40mm of clearance at the rear fan cowl. If the motor is operated in a high-temperature area (above 40°C), derating of the output power may be necessary to protect the Class F insulation system. Proper grounding of the aluminum frame is essential for operator safety and EMI mitigation.
Maintenance and Lifecycle Reliability
The BN 80A 4 uses high-quality, life-lubricated bearings that are designed for thousands of hours of service. However, we recommend a visual inspection every 6 months to check for oil leaks from coupled gearboxes or dust accumulation on the cooling fins. If the motor operates in a highly humid environment, check the terminal box gaskets periodically. For series continuity, always replace components with original Bonfiglioli spares, such as the BE71B4 5 seals or gaskets if applicable to the assembly. A clean motor is a cool motor; ensuring the frame remains free of grease and debris will maximize the efficiency and reliability of your drive system.
FAQs
Q: Can the BN 80A 4 be used with a 60Hz supply?
A: Yes, it is typically rated for dual frequency. At 60Hz, the motor will run approximately 20% faster and provide slightly more power, though current draw must be monitored.
Q: What is the benefit of the IP55 rating?
A: It provides protection against dust ingress that could harm the motor and protection against low-pressure water jets from any direction, suitable for most industrial indoor conditions.
Do you need more references from this brand? Explore our full catalog of Bonfiglioli here.
When designing multi-axis conveyor systems, this 4-pole motor delivers the necessary torque to efficiently drive versatile reduction units like the MVF 49 P1 10 19/140 B3 PV gearbox.
