Output filters are used on VFD outputs to extend the life of motors and protect them from voltage wave reflection and insulation breakdown. Output filters are needed on a VFD when output motor leads are longer than 100 feet and allow motor lead lengths of up to 1,000 feet.
Extend the life of your motors and cables by reducing the harmful effects of voltage spikes due to voltage wave reflection. Voltage wave reflection is a function of the voltage rise time (dV/dT) and the length of the motor cables.
VTF series output filters start at