Mitsubishi FR-A842-400K-1 Variable Frequency Drive for FREQROL FR Series

The Mitsubishi FR-A842-400K-1 (FR-A842-400K-1) is an industrial variable frequency drive belonging to the Mitsubishi Electric FREQROL FR series. Designed for high-performance motor speed and torque regulation, this AC inverter drive delivers dependable operation in demanding automated machinery and production systems. It is commonly deployed across manufacturing plants, conveyor lines, processing machinery, and heavy industrial equipment requiring precise motor control and energy-efficient speed variation. As part of the FREQROL family, the unit interfaces directly with compatible Mitsubishi industrial control architectures and factory automation networks to maintain coordinated operation. The drive supports smooth acceleration, deceleration, and reliable operational stability under changing load conditions during continuous production cycles. Operating as a replacement or upgrade component, the FR-A842-400K-1 helps plant engineers and maintenance technicians sustain machinery uptime, optimize power usage, and support ongoing equipment maintenance throughout industrial facilities.