Mitsubishi FR-BU2-H15K Braking Unit for FREQROL Drives

The Mitsubishi FR-BU2-H15K (FR-BU2-H15K) is a braking unit designed for use with Mitsubishi FREQROL series variable frequency drives and inverter systems. As part of the FREQROL drive ecosystem, this unit functions during motor deceleration and regenerative braking cycles, dissipating excess energy when connected to external dynamic braking resistors to protect the drive and maintain DC bus voltage stability. Engineered for industrial automation setups, the FR-BU2-H15K is utilized across automated machinery, material handling conveyors, hoists, and process lines requiring dynamic braking control. It features a rugged industrial housing suitable for control cabinet installation and integrates directly with compatible Mitsubishi frequency inverters. With a weight of 10 kg, the unit provides reliable power dissipation during rapid deceleration and overhauling load conditions. It serves as a dependable replacement module to restore optimal braking performance and maintain production reliability in industrial drive installations.