Product Description
Mitsubishi FR-BU2-15K
The Mitsubishi FR-BU2-15K is a high-performance brake unit designed for use with Mitsubishi Electric’s FR-A800 and FR-F800 series inverters. This unit is essential for applications requiring rapid deceleration or those involving overhauling loads, where regenerative energy is produced by the motor. The FR-BU2-15K effectively manages this surplus energy by diverting it to an external braking resistor (sold separately), where it is safely dissipated as heat. This process allows for controlled and quick stopping, preventing overvoltage faults in the inverter and enhancing the overall safety and performance of the drive system. Its robust construction ensures reliable operation in demanding industrial environments.
Technical Specifications:
- Model: FR-BU2-15K
- Applicable Inverter Capacity: 15 kW
- Compatible Inverter Series: Mitsubishi FR-A800, FR-F800
- Minimum Connectable Resistance: 5.6 Ω

Mitsubishi FR-BU2-15K
Shop the Mitsubishi FR-BU2-15K brake unit, engineered for 15 kW inverters. This unit provides efficient regenerative braking for rapid motor deceleration and improved system safety in demanding applications.






