BU-3700-TEIKOUKI GRZG200 | Brake discharge resistor for FR-BU2。MITSUBISHI BU-3700。Notes on FREQROL VFD Inverter Brake Units and Brake Resistors。Braking Unit for FREQROL Inverter | Mitsubishi Electric | MISUMI。。6D172 MITSUBISHI FREQROL BRAKE OPTION BU-3700 動作保証