Contactor Switched Automatic Harmonic Filter Panel is mainly designed for centralized reactive power compensation with harmonic mitigation. The Automatic Harmonic Filter Panel is available in a power range varying from 50 to 2500 KVAR. The Automatic Harmonic Filter Panel offers automatic control using automatic power factor control relays. Contactor Switched Automatic Harmonic Filter Panel works on a power supply rate varying from 440 V to 525 V or 850 V.