LV Auto Switched Harmonic Filter is designed with 2mm CRCA sheet metal cabinet in epoxy power coated finish. The Harmonic Filter operates on a power supply rate of 415/ 440/ 525/ 690 V, at a frequency of 50Hz. The Harmonic Filter comes with heavy duty contractors for filter steps switching. LV Auto Switched Harmonic Filter is facilitated with forced ventilation for proper heat dissipation.