BU-3700-TEIKOUKI GRZG200 | Brake discharge resistor for FR-BU2。MITSUBISHI BU-3700。Mitsubishi Electric Fr-bu2-h30k-60 Brake Unit For 400v Class。Braking Unit for FREQROL Inverter | Mitsubishi Electric | MISUMI。6D172 MITSUBISHI FREQROL BRAKE OPTION BU-3700 動作保証