Schaffner FS5751-49-52 Three Phase Line Filter

Schaffner FS5751-49-52 is a three‑phase power line filter designed to suppress high‑frequency EMI on 3‑phase systems, delivering clean input power for motor drives and other power‑electronic loads. It is rated for 3×480 VAC operation at 50–60 Hz and has a nominal current rating of 49 A, making it suitable for medium‑to‑large industrial equipment fed from a 480 VAC three‑phase mains supply. This filter helps reduce conducted noise on the supply lines, supporting EMC performance for applications such as motor drives, CNC systems, and other inverters where improved electromagnetic compatibility is critical. Built by Schaffner, the FS5751‑49‑52 is a robust, purpose‑built solution for integration on the input side of power electronics, combining compact form with a design intended for reliable operation in demanding industrial environments.