Mitsubishi FFR-HEL-H55K-E DC Reactor for FREQROL Inverters

The Mitsubishi FFR-HEL-H55K-E (FFR-HEL-H55K-E) is a power factor improving DC reactor engineered for use with Mitsubishi FREQROL FR series variable frequency drives. Installed in the direct current link of compatible inverter systems, this reactor effectively suppresses harmonic currents generated by the rectifier circuit, thereby reducing electrical noise and improving overall system efficiency. It protects upstream distribution equipment from harmonic distortion, stabilizes internal bus voltage, and supports reliable drive operation under continuous industrial duty cycles. Designed specifically for 400V class 55 kW inverter installations, the unit connects directly to the drive DC link terminals to deliver high inductance performance and robust thermal stability. The Mitsubishi FFR-HEL-H55K-E is widely utilized across factory automation environments, including motor control centers, pump and fan drives, conveyor systems, material handling machinery, and heavy industrial processing lines. Its rugged construction ensures dependable performance in demanding electrical enclosures while helping facilities meet standard harmonic compliance and power quality requirements.