The Mitsubishi FR-BU2-30K is a high-performance external braking unit designed to enhance the braking capability of Mitsubishi inverters. This unit is essential for applications involving high-inertia loads or frequent, rapid deceleration cycles. It works by dissipating the regenerative energy generated by the motor during braking, converting it into heat through an external braking resistor (sold separately). This process prevents overvoltage faults on the inverter’s DC bus, ensuring stable and reliable operation while allowing for significantly shorter stopping times. The FR-BU2-30K is specifically engineered for use with 30kW, 400V class inverters, such as those in the FR-A800 and FR-F800 series, providing a robust solution for demanding motor control tasks.