By removing harmful harmonics of pre-determined order to increase reliability of supplied power, ECOSine® 60 Hz Passive Harmonic Filters extend service life of downstream components. Models include types FN3412 with <5% THDi and FN3418 with 7%–10% THDi. Installed at typical 3-phase voltage of 480 Vac (±10%) at 60 Hz (±1 Hz), filters operate at 99% efficiency, have plug-and-play design, and are suited for use with non-linear loads, such as 5–500 hp typ motor drives.