With the new TOSS15-FPFA sub-filters for the VF-S15 series, you can ensure compliance with the limit values defined in the product standard according to the IEC61800-3 category C1. leakage current low In order to avoid a response of upstream protective devices (FI protective switches), these radio interference suppression filters generate only minimal, additional leakage currents. It allows you to use the frequency inverters in residential areas (1). environment) and can be mounted under the converter in a space-saving manner due to its compact construction.