Product Overview: Bonfiglioli BN 63B 4 5
The Bonfiglioli BN 63B 4 5 is a high-quality three-phase asynchronous AC motor designed for a wide range of industrial power transmission applications. As part of the BN series, this motor is a benchmark for reliability, compact design, and international standard compliance. The 63B frame is particularly suited for small-scale automation, driving small conveyors, fans, and dosing pumps with exceptional efficiency.
Technical Specifications and Performance
This motor features a 4-pole configuration, providing a nominal speed of approximately 1400 RPM at 50Hz. With a power rating of 0.18kW (0.25 HP), it offers a stable and consistent torque delivery for continuous duty (S1) operation. The «5» in the part number typically refers to a specific mounting or electrical variation (such as a B5 flange). It is built with IP55 protection, ensuring the motor remains operational in environments with dust and low-pressure water splashes.
Key Features
- Frame Size: 63B.
- Number of Poles: 4.
- Power Output: 0.18 kW.
- Insulation Class: F (155°C).
- Protection Rating: IP55.
- Housing Material: Die-cast Aluminum for optimal thermal dissipation.
- Duty Cycle: S1 (Continuous).
Engineering and Durability
The BN series is manufactured using high-grade copper windings and precision-balanced rotors to minimize vibration, which significantly extends the lifespan of the motor bearings and any coupled gearboxes. Its aluminum housing provides an excellent power-to-weight ratio while acting as an efficient heat sink, maintaining safe operating temperatures even in enclosed cabinets.
| Electrical Data | Value |
| Voltage | 230/400V (Delta/Star) |
| Frequency | 50/60 Hz |
| Standards | IEC / CE Compliant |
Maintenance Insights
The BN 63B 4 motor features permanently lubricated bearings, making it virtually maintenance-free under normal operating conditions. It is highly recommended to pair this motor with Bonfiglioli’s VF or W series gearboxes for a perfectly matched drive solution.
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