Product Description
The Motori Bonora H71B/4 is a three-phase squirrel-cage asynchronous (induction) motor manufactured by Motori Bonora S.p.A. of Cento, Italy. It is rated at 0.37 kW (approximately 0.5 HP) with a 4-pole design for nominal synchronous speeds of 1500 RPM at 50Hz and 1800 RPM at 60Hz, achieving actual loaded speeds of approximately 1370–1390 RPM at 50Hz and 1640–1670 RPM at 60Hz. This IEC frame size 71 motor features totally enclosed, fan-cooled (TEFC/IC411) construction with IP55 ingress protection, Class F insulation, and a squirrel-cage rotor — making it suitable for a wide range of general industrial drive applications.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Bonora (Motori Bonora S.p.A.) |
| Model / Part Number | H71B/4 |
| Product Type | Three-Phase Squirrel-Cage Asynchronous Induction Motor |
| Power Output (50Hz) | 0.37 kW (~0.5 HP) |
| Power Output (60Hz) | 0.42 kW (~0.56 HP) |
| Voltage (50Hz) | 220–240V Δ / 380–415V Y |
| Voltage (60Hz) | 255–280V Δ / 440–480V Y |
| Phase | 3-Phase |
| Frequency | 50 / 60 Hz |
| Full Load Current (50Hz) | 1.2 A |
| Full Load Current (60Hz) | 2.1 A |
| Speed (50Hz) | ~1370–1390 RPM |
| Speed (60Hz) | ~1640–1670 RPM |
| Number of Poles | 4 |
| IEC Frame Size | 71 (IEC 71) |
| Enclosure / Cooling Type | TEFC — Totally Enclosed Fan Cooled (IC 411) |
| Protection Degree | IP55 |
| Insulation Class | Class F |
| Duty Cycle | S1 (Continuous) |
| Rotor Type | Squirrel-Cage |
| Power Factor (cos φ) | 0.72 |
| Motor Series | H / H-MA-MTS Series |
| Current Type | AC |
| Standards Compliance | IEC 60034, EN 60034 series, CE (LVD 2014/35/UE, EMC 2014/30/UE) |
| Manufacturer | Motori Bonora S.p.A., Cento (Ferrara), Italy — est. 1945 |
We warranty all items for 30 days from date of purchase.
Other Details
We warranty all items for 30 days from date of purchase. If you experience any issues with your item within this period, please contact us and we will work with you to resolve the problem. This warranty covers defects in functionality but does not cover damage caused by misuse, improper installation, or normal wear and tear.Product Videos
Custom Field
GTIN 679523686161
Full Load Amps 1.2 A (50Hz) / 2.1 A (60Hz)
Manufacturer Asynchronous Motor
Shaft Diameter 14 mm
Enclosure Type TEFC (Totally Enclosed Fan Cooled)
Part Number H71B/4
Shelf H-7
Model H71B/4
MPN H71B/4
Type Induction Motor
