Mitsubishi FR-HEL-C90K DC Reactor for FREQROL FR Drives

The Mitsubishi FR-HEL-C90K (FR-HEL-C90K) is a DC reactor designed for use with Mitsubishi Electric FREQROL FR series variable frequency drives. This drive component connects to the DC intermediate circuit of compatible inverters to suppress input harmonic currents, improve the overall power factor of the drive system, and protect the inverter power electronics against power supply surges and line disturbances. Engineered for demanding environments, the reactor helps systems comply with power quality regulations and utility harmonic limits. It is suitable for applications involving electric motors, pumps, fans, conveyors, and processing machinery powered by FREQROL drives. Integrating this reactor reduces thermal stress on upstream transformers, distribution switchgear, and internal drive capacitors, thereby enhancing operational reliability and extending equipment service life. By smoothing DC link ripple and mitigating harmonic feedback onto the electrical grid, the unit ensures dependable performance across automated manufacturing plants.