R912000857 (FECG01.2-90K0-3P400-A-BN-NNNN-01V01)

FEC Frequency Converters

FECG01.2-90K0-3P400-A-BN-NNNN-01V01 Series Image

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The Bosch Rexroth frequency converter, MPN R912000857 (FECG01.2-90K0-3P400-A-BN-NNNN-01V01), is a programmable three-phase device with a 400 V mains connection and a power rating of 90 kW. This unit utilizes magnetic flux PWM modulation for enhanced motor control. After installation, it is necessary to verify there are no short circuits between terminals and ground. Attention should be given to long wire lengths, as they may introduce voltage drops and lead to reduced motor torque. The output side must not include noise filters, power capacitors, or surge suppressors to prevent equipment failure or capacitor damage. Optimum operation is achieved at ambient temperatures between 40°C and 50°C. The design includes a cold air intake at the bottom and hot air exhaust at the top to support effective thermal management. The converter is typically installed between an AC output choke and an AC filter, and is compatible with a bus adapter, copy unit, remote controller, and braking assemblies.