<https://cn.element14.com/schaffner/fn256-64-52/filter-64a-3-phase-neutral/dp/1209489>
<http://schema.org/description>
"The FN256-64-52 is a 3-phase+neutral Line Filter for general purpose four-wire filtering. It is designed specifically for applications involving asymmetric loads, ranging from industrial controls to medical electronics systems. This Filter typically involves insufficiently filtered converters and switch-mode power supplies on different phases, causing current imbalance and significant interference problems. Employing single-stage filter circuit for each phase and the neutral line, this filter provides high attenuation of both symmetrical and asymmetrical interference. It is used as a main input filter, this filter also increase conducted immunity and thus contribute to overall system reliability. It has a lightweight aluminium housing with a small footprint ensures that the filters can be easily accommodated on control panels and in tight power cabinets."
<https://cn.element14.com/schaffner/fn256-64-52/-64a-3-n/dp/1209489>