MITSUBISHI BU-3700。Braking Unit for FREQROL Inverter | Mitsubishi Electric | MISUMI。Mitsubishi Electric Fr-bu2-h30k-60 Brake Unit For 400v Class。Outline | Inverters-FREQROL-XC Series | Products | MITSUBISHI。6D172 MITSUBISHI FREQROL BRAKE OPTION BU-3700 動作保証