The Terrui 115-B is a high-torque, external rotor Permanent Magnet Synchronous Motor (PMSM) specifically engineered for high-demand ventilation hardware. Designed as a superior alternative to traditional induction motors, the 115-B is the ideal power hub for compact industrial ceiling fan or panel fan setups. By utilizing direct-drive technology, this motor eliminates mechanical coupling losses, delivering quiet and consistent power to ensure optimal climate control in any industrial environment.

• Superior Energy Efficiency: The 115-B PMSM design offers significantly higher efficiency than standard motors, reducing operational costs by up to 30%.
• Maintenance-Free Reliability: With a gearless, direct-drive structure, there are no belts to tension or gearboxes to oil, eliminating common failure points.
• Smart Self-Cooling: The external rotor is positioned directly in the airflow, providing a self-cooling mechanism that maintains peak performance during continuous 24/7 operation.
• Compact Integration: The high torque-to-weight ratio allows for a much lower footprint, making it easier to integrate into modern, sleek industrial fan designs.

• Permanent Magnet Technology: Provides constant torque and high-precision speed control across the entire operating range.
• IP55 Protection Rating: Specifically built for harsh environments, the motor is dust and water-resistant, surviving high-humidity and demanding industrial conditions.
• High Insulation Standards: Features Class F/H insulation to ensure thermal stability and safety under high-load conditions.
• Smart Drive Compatibility: Integrated drives support PWM, 0-10V, or Modbus with fine-tuned firmware for specific ramp-up speeds.

Terrui specializes in adapting technology to your specific hardware needs. We understand that "off-the-shelf" motors are often a compromise. For every industrial fan project, we offer customizable shaft extensions and mounting flanges to fit your existing housing—you shouldn't have to redesign your product for us. With our lab's expertise in non-standard requests, we provide durable, direct-drive solutions built to survive the toughest industrial environments.

The 115-B is optimized for 45" panel fans. For larger industrial ceiling fans (up to 24ft), we recommend our high-power series such as the 368-95 model which supports up to 114" fan applications.

No. This is a direct-drive motor. Eliminating the gearbox reduces noise, energy loss, and maintenance requirements for your industrial fan system.

With an IP55 rating and specialized lubricants and potting compounds, the motor is fully protected against dust ingress and water resistance, making it ideal for challenging industrial environments.