We are offering three phase and neutral line filters are a compact solution for the interference suppression on the mains input of cabinets and control units of equipment, ranging from industrial applications like u.p.s, machine tools to sensitive medical installations. These typically involve separate and often insufficiently filtered frequency inverters and smps, causing current imbalance and significant interference problems. Many times, the use of a three phase + neutral line mains filter is the only way to get the ce mark for the cabinet in accordance with the emc directive.