Mitsubishi FR-HEL-H355K DC Reactor for FREQROL FR Series Inverters

The Mitsubishi FR-HEL-H355K (FR-HEL-H355K) is a DC reactor designed for use with Mitsubishi Electric FREQROL FR series variable frequency drives in industrial automation and drive systems. Functioning as a power-factor-improving DC link choke, this component connects to the DC bus of compatible inverter units to suppress harmonic currents, reduce power supply harmonics, and improve the overall power factor of the system. By attenuating current ripples and smoothing input current flow, the reactor helps protect upstream power distribution equipment and internal drive components from excessive electrical stress. The FR-HEL-H355K is engineered for high-power industrial applications, specifically matching 400V class inverter systems rated up to 355 kW. It is commonly deployed across manufacturing plants, water treatment facilities, processing lines, and heavy-duty industrial machinery operating large electric motors and variable-speed drives. Integrating this genuine Mitsubishi reactor into your drive cabinet ensures reliable operational performance, extended equipment lifespan, and compliance with facility power quality requirements.